Dissertations / Theses on the topic 'Automated'
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Danelia, David, and Allendes Nanitza Gonzalez. "Automatic Whiteboard Eraser : A systematic and automated process." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264388.
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The whiteboard is a tool being used in several different facilities around the world. However, erasing the ink off the board can be unnecessarily time consuming and distracting. The purpose of the project was therefore to create a demonstrator to automate the process with a few restrictions. The demonstrator was required to be light enough and small enough to be handheld. In addition, the demonstrator needed to function and work properly on a magnetic surface. To conceptualize the purpose a demonstrator was built with an iterative process and thereafter programmed to get a systematic movement. It utilized continuous servo motors, IR-sensors and a 3-axis gyroscope and an accelerometer in combination with 3D-printed components. The final prototype turned out to function properly but could be improved as its erasing properties are not working as one could expect from a finished prototype.Whiteboard är ett verktyg som används i flera olika fastigheter runt om i världen. Att ta bort bläcket från whiteboarden kan dock vara onödigt tidskrävande och distraherande. Syftet med projektet var därför att automatisera processen med några begränsningar. Två begränsningar var att prototypen skulle väga lite och vara tillräckligt liten för att vara handhållen. En annan begränsning var att den skulle fungera korrekt på en magnetisk yta. För att konceptualisera syftet byggdes en prototyp med en iterativ process och därefter programmerades den för att få en systematisk rörelse. Den utnyttjade kontinuerliga servomotorer, IR-sensorer och ett 3-axligt gyroskop i kombination med 3D-printade komponenter. Den slutgiltiga prototypen visade sig fungera korrekt men kan förbättras eftersom dess raderingsegenskaper inte fungerar som man kunde ha förväntat sig från en färdig prototyp.
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Saberi, Atefeh. "Automatic outlier detection in automated water quality measurement stations." Master's thesis, Université Laval, 2015. http://hdl.handle.net/20.500.11794/25908.
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Des stations de mesure de la qualité de l’eau sont utilisées pour mesurer la qualité de l'eau à haute fréquence. Pour une gestion efficace de ces mesures, la qualité des données doit être vérifiée. Dans une méthode univariée précédemment développée, des points aberrants et des fautes étaient détectés dans les données mesurées par ces stations en employant des modèles à lissage exponentiel pour prédire les données au moment suivant avec l’intervalle de confiance. Dans la présente étude, ne considérant que le cas univarié, la détection de points aberrants est améliorée par l’identification d’un modèle autorégressif à moyenne mobile sur une fenêtre mobile de données pour prédire la donnée au moment suivant. Les données de turbidité mesurées à l'entrée d'une station d'épuration municipale au Danemark sont utilisées comme étude de cas pour comparer la performance de l’utilisation des deux modèles. Les résultats montrent que le nouveau modèle permet de prédire la donnée au moment suivant avec plus de précision. De plus, l’inclusion du nouveau modèle dans la méthode univariée présente une performance satisfaisante pour la détection de points aberrants et des fautes dans les données de l'étude de cas.Water quality monitoring stations are used to measure water quality at high frequency. For effective data management, the quality of the data must be evaluated. In a previously developed univariate method both outliers and faults were detected in the data measured by these stations by using exponential smoothing models that give one-step ahead forecasts and their confidence intervals. In the present study, the outlier detection step of the univariate method is improved by identifying an auto-regressive moving average model for a moving window of data and forecasting one-step ahead. The turbidity data measured at the inlet of a municipal treatment plant in Denmark is used as case study to compare the performance of the use of the two models. The results show that the forecasts made by the new model are more accurate. Also, inclusion of the new forecasting model in the univariate method shows satisfactory performance for detecting outliers and faults in the case study data.
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Ansin, Rasmus, and Didrik Lundberg. "Automated Inference of Excitable Cell Models as Hybrid Automata." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-154065.
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In this paper, we explore from an experimental point of view the possibilities and limitations of the new HYCGE learning algorithm for hybrid automata. As an example of a practical application, we study the algorithm’s performance on learning the behaviour of the action potential in excitable cells, specifically the Hodgkin-Huxley model of a squid giant axon, the Luo-Rudy model of a guinea pig ventricular cell, and the Entcheva model of a neonatal rat ventricular cell. The validity and accuracy of the algorithm is also visualized through graphical means.I denna uppsats undersöker vi från en experimentell synvinkel möjligheter och begränsningar i den nya inlärningsalgoritmen HYCGE för hybridautomater. Som ett exempel på en praktisk tillämpning, studerar vi algoritmens förmåga att lära sig aktionspotentialens beteende i retbara celler, specifikt Hodgkin-Huxleymodellen av en bläckfisks jätteaxon, Luo-Rudymodellen av en ventrikulärcell i marsvin, och Entchevas modell av en ventrikulär cell i nyfödd råtta .Giltigheten och noggrannheten hos algoritmen visualiseras även genom grafiskamedel.
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Khan, Yaser Mohammad. "Automated cameraman." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/61163.
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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.Cataloged from PDF version of thesis.
Includes bibliographical references.
Advances in surveillance technology has yielded cameras that can detect and follow motion robustly. We applied some of the concepts learnt from these technologies to classrooms in an effort to come up with a system that would automate the process of capturing oneself on video without needing to resort to specialized hardware or any particular limitation. We investigate and implement several image differencing schemes to detect and follow motion of a simulated lecturer, and propose possible future directions for this project.
by Yaser Mohammad Khan.
M.Eng.
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Suta, Adin, and Karl-Filip Selander. "Automated Greenhouse." Thesis, KTH, Maskinkonstruktion (Inst.), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-226686.
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In agriculture, growing plants is usually done with soil asthe growing medium. An alternative method for soil is usinga hydroponic system with plants submerged in water.In this thesis, a hydroponic system was built with the purposeof finding out suitable constants and loop-time of aPID controller to reach optimal pH value for plant growthof a nutrient solution, without intoxicating it. An Arduinouno micro controller was used to turn on and off a waterpump, oxygen pump and lights at certain intervals. ApH sensor was used to measure pH-levels in a tank, givingthe output from the pH-sensor as the input for thePID-controller. Depending on the output of the PID, twoservos opened valves to release either an alkaline or acidicsolution into the water reservoir. The results of the testsconducted show that it is possible to find working constantsand loop-time for the PID to successfully reach optimal pHof the water reservoir without intoxicating it.Att odla plantor görs i regel med jord som odlingsmedium,men som alternativ kan man använda ett hydroponiskt systemmed vatten som odlingsmedium istället för jord. I dennaavhandling, har ett hydroponiskt system byggts medsyfte att hitta lämpliga konstanter och looptid till en PIDkontroller för att neutralisera pH:t i en näringsvätska utanatt medföra en giftig miljö för växterna. En Arduino unomikrokontroller har använts för att sätta på och stänga aven vattenpump, syrepump och ljus i bestämda tidsintervall.En pH-sensor användes för att mäta pH-nivåerna i envattentank, utdatan från pH-sensorn blev indatan för PIDkontrollern.Beroende på utdatan från PID-kontrollern såöppnas två servo motorer ventiler för att antingen släppaut en basisk eller en sur lösning till vattentanken. Resultatenfrån testerna visar att det är möjligt att hitta fungerandekonstanter och looptid för en PID-kontroller för attframgångsrikt neutralisera pH:t i vattnet utan att förgiftadet.
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Kim, Bumsik. "Modeling Automated Vehicles and Connected Automated Vehicles on Highways." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/103012.
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The deployment of Automated Vehicles (AV) is starting to become widespread throughout transportation, resulting in the recognition and awareness by legislative leaders of the potential impact on transportation operations. To assist transportation operators in making the needed preparations for these vehicles, an in-depth study regarding the impact of AV and Connected Automated Vehicles (CAV) is needed. In this research, the impact of AV and CAV on the highway setting is studied. This study addresses car-following models that are currently used for simulating AV and CAV. Diverse car-following models, such as the Intelligent Driver Model (IDM), the IDM with traffic adaptive driving Strategy (SIDM), the Improved IDM (IIDM), the IIDM with Constant-Acceleration Heuristic (CAH), and the MIcroscopic model for Simulation of Intelligent Cruise control (MIXIC) were examined with the state-of-the-art vehicle trajectory data. The Highway Drone dataset (HighD) were analyzed through the implementation of genetic algorithm to gain more insight about the trajectories of these vehicles. In 2020, there is no commercially available gully automated vehicle available to the public, although many companies are conducting in field testing. This research generated AV trajectories based on the actual vehicle trajectories from the High-D dataset and adjusts those trajectories to account for ideal AV operations. The analysis from the fitted trajectory data shows that the calibrated IIDM with CAH provides a best fit on AV behavior. Next, the AV and CAV were modeled in microscopic perspective to show the impact of these vehicles on a corridor. The traffic simulation software, VISSIM, modified by implementing an external driver model to govern the interactions between Legacy Vehicles (LV), AV, and CAV on a basic and merging highway segment as well as a model of the Interstate 95 corridor south of Richmond, Virginia. From the analysis, this research revealed that the AV and CAV could increase highway capacity significantly. Even with a small portion of AV or CAV, the roadway capacity increased. On I-95, CAV performed better than AV because of Cooperative Adaptive Cruise Control (CACC) and platooning due to CAV's ability to coordinate movement through communication; however, in weaving segments, CAV underperformed AV. This result indicates that the CAV algorithms would need to be flexible in order to maintain flow in areas with weaving sections. Lastly, diverse operational conditions, such as different heavy vehicle market penetration and different aggressiveness were examined to support traffic operators transition to the introduction of AV and CAV. Based on the analysis, the study concludes that the different aggressiveness could mitigate congestion in all cases if the proper aggressiveness level is selected considering the current traffic condition. Overall, the dissertation provides guidance to researchers, traffic operators, and lawmakers to model, simulate, and evaluate AV and CAV on highways.Doctor of Philosophy
The deployment of Automated Vehicles (AV) is starting to become widespread throughout transportation, resulting in the recognition and awareness by legislative leaders of the potential impact on transportation operations. To assist transportation operators in making the needed preparations for these vehicles, an in-depth study regarding the impact of AV and Connected Automated Vehicles (CAV) is needed. In this research, the impact of AV and CAV on the highway setting is studied. This study addresses car-following models that are currently used for simulating AV and CAV. Diverse car-following models, such as the Intelligent Driver Model (IDM), the IDM with traffic adaptive driving Strategy (SIDM), the Improved IDM (IIDM), the IIDM with Constant-Acceleration Heuristic (CAH), and the MIcroscopic model for Simulation of Intelligent Cruise control (MIXIC) were examined with the state-of-the-art vehicle trajectory data. The Highway Drone dataset (HighD) were analyzed through the implementation of genetic algorithm to gain more insight about the trajectories of these vehicles. In 2020, there is no commercially available gully automated vehicle available to the public, although many companies are conducting in field testing. This research generated AV trajectories based on the actual vehicle trajectories from the High-D dataset and adjusts those trajectories to account for ideal AV operations. The analysis from the fitted trajectory data shows that the calibrated IIDM with CAH provides a best fit on AV behavior. Next, the AV and CAV were modeled in microscopic perspective to show the impact of these vehicles on a corridor. The traffic simulation software, VISSIM, modified by implementing an external driver model to govern the interactions between Legacy Vehicles (LV), AV, and CAV on a basic and merging highway segment as well as a model of the Interstate 95 corridor south of Richmond, Virginia. From the analysis, this research revealed that the AV and CAV could increase highway capacity significantly. Even with a small portion of AV or CAV, the roadway capacity increased. On I-95, CAV performed better than AV because of Cooperative Adaptive Cruise Control (CACC) and platooning due to CAV's ability to coordinate movement through communication; however, in weaving segments, CAV underperformed AV. This result indicates that the CAV algorithms would need to be flexible in order to maintain flow in areas with weaving sections. Lastly, diverse operational conditions, such as different heavy vehicle market penetration and different aggressiveness were examined to support traffic operators transition to the introduction of AV and CAV. Based on the analysis, the study concludes that the different aggressiveness could mitigate congestion in all cases if the proper aggressiveness level is selected considering the current traffic condition. Overall, the dissertation provides guidance to researchers, traffic operators, and lawmakers to model, simulate, and evaluate AV and CAV on highways.
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Lindgren, Max, and Max Thiel. "Automatic Color Mixer : A method for automated color recognition and replication." Thesis, KTH, Maskinkonstruktion (Inst.), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-226684.
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Throughout history colors have been an important way forliving organisms to signal something to their surroundings.For instance, the color of a plant’s leaves or petals havebeen the way with which the plant communicates with itssurroundings for example to attract insects to spread itsDNA, or to signal that it is poisonous. Animals have alsobeen using colors to impress the other gender or to frightenother animals in order to stay alive and spread their DNA.One could argue that colors in some cases are vital andhave played a major role in evolution. This may not be thecase today for us humans, but the importance and use ofcolor is still very significant in todays society.The purpose of this project is to construct a demonstratorthat can mix a color that it gets as input from auser. Using automation control the machine can first mix acolor and then compensate for any errors just like a humanwould do to get the right result. To be able to do this acolor sensor that reads color in RGB is used. The differentlevels are then translated to a another color model calledHSV, which is then used for mixing the final color.The performance of the system was tested by lettinga sensor scan a sample color card, calculate how much ofeach primary color to pour into the mix. The mixed paintwas then painted onto a piece of paper that was left todry before being scanned. The difference in hue was notedafter the first mix and the system continued adjusting forany deviations until a good result was achieved. The resultof the tests was that it took a maximum amount of threemixes to get within 0,8% of the reference value. In half ofthe tests the demonstrator achieved a good result after thevery first mix.Färg har genom historien varit ett effektivt sätt att signaleranågot till sin omgivning. Till exempel har färger påblad hos blommor och växter fungerat som växters sätt attkommunisera med sin omgivning. Antingen för att lockatill sig insekter f¨or att sprida sitt DNA eller för att signaleragiftighet. Djur har använt sig av färger för att imponerapå det andra könet och därigenom kunna föra sittDNA vidare. Man skulle kunna argumentera för att färghar haft en viktig roll i evolutionen. För människan är deti dagsläget inte riktigt lika viktigt evolutionärt, men viktenav och användningen av färg har en stor betydelse i dagenssamhälle. Numera finns det färgaffärer som tillhandahållermaskiner som kan låta kunden själv välja precis vilken färgden vill ha och med hjälp av maskinerna blanda upp denna.Syftet med detta projekt är att konstruera en mekatroniskkonstruktion som kan ta indata i form av färgval frånen användare. Genom användandet av reglerteknik låtermaskinen först blanda färgen en första gång och sedan kompenseraför eventuella fel precis som en människa skulle. Föratt uppnå detta används en färgsensor som läser av färgensom RGB och sedan översätter detta till färgmodellen HSVsom används för att bestämma blandningens volymproportioner.För att testa systemet läts en sensor läsa av ett färgkortoch beräkna hur mycket av vardera primärfärg att hälla iblandningen. Den blandade färgen applicerades senare påett papper och läts torka innan avläsning. Skillnaden i nyansefter första beredningen noterades och systemet fortsatteatt korrigera eventuella fel tills ett bra resultat erhölls.Resultatet av alla tester var att det tog högst tre blandningarför att komma inom 0,8% från referensnyansen. Ihälften av testerna erhölls bra resultat redan efter den initiellablandningen.
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Kwon, Hyun Sik. "Development of Automated Design Tools for Automotive Automatic Transmission Gear System." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1370019857.
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Taboada, Martín O. "Automated target cascade." [S.l.] : [s.n.], 2006. http://opus.kobv.de/tuberlin/volltexte/2006/1435.
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Svensson, Jacob, and Anders Hansén. "Automated Telephony Testing." Thesis, Linköping University, Department of Electrical Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-12444.
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Testing is a crucial part when developing electronics. One way to lower the costs and increase the efficiency is to avoid human interaction. This can be done with automated testing. The purpose with this thesis is to look into the possibility of automating telephony and facsimile tests with "off the shelf components" such as modems and standard computers. The proposed solution was put together and the needed software was developed, using Java. When testing electronics it is of most importance that the hardware and software carrying out the tests are reliable. To be able to ensure this, the software has been thoroughly tested, and the different error sources discussed. The biggest cause to the problems found was that the modems weren’t reliable. A general work around is presented, implemented and tested.
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Jost, Steffen. "Automated Amortised Analysis." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-122805.
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Jansson, Johan. "Automated Computational Modeling." Doctoral thesis, Chalmers University of Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-52828.
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Nilsson, Henrik, and Anders Svensson. "Automated Mobile Cranes." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-29479.
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O'Mara, David Thomas John. "Automated facial metrology." University of Western Australia. School of Computer Science and Software Engineering, 2002. http://theses.library.uwa.edu.au/adt-WU2003.0015.
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Automated facial metrology is the science of objective and automatic measurement of the human face. There are many reasons for measuring the human face. Psychologists are interested in determining how humans perceive beauty, and how this is related to facial symmetry [158]. Biologists are interested in the relationship between symmetry and biological fitness [124]. Anthropologists, surgeons, forensic experts, and security professionals can also benefit from automated facial metrology [32, 101, 114]. This thesis investigates the concept of automated facial metrology, presenting original techniques for segmenting 3D range and colour images of the human head, measuring the bilateral symmetry of n-dimensional point data (with particular emphasis on measuring the human head), and extracting the 2D profile of the face from 3D data representing the head. Two facial profile analysis techniques are also presented that are incremental improvements over existing techniques. Extensive literature reviews of skin colour modelling, symmetry detection, symmetry measurement, and facial profile analysis are also included in this thesis. It was discovered during this research that bilateral symmetry detection using principal axes is not appropriate for detecting the mid-line of the human face. An original mid-line detection technique that does not use symmetry, and is superior to the symmetry-based technique, was developed as a direct result of this discovery. There is disagreement among researchers about the effect of ethnicity on skin colour. Some researchers claim that people from different ethnic groups have the same skin chromaticity (hue, saturation) [87, 129, 206], while other researchers claim that different ethnic groups have different skin colours [208, 209]. It is shown in this thesis that people from apparently different ethnic groups can have skin chromaticity that is within the same Gaussian distribution. The chromaticity-based skin colour model used in this thesis has been chosen from the many models previously used by other researchers, and its applicability to skin colour modelling has been justified. It is proven in this thesis that the Mahalanobis distance to the skin colour distribution is Gaussian in both the chromatic and normalised rg colour spaces. Most facial profile analysis techniques use either tangency or curvature to locate anthropometric features along the profile. Techniques based on both approaches have been implemented and compared. Neither approach is clearly superior to the other, but the results indicate that a hybrid technique, combining both approaches, could provide significant improvements. The areas of research most relevant to facial metrology are reviewed in this thesis and original contributions are made to the body of knowledge in each area. The techniques, results, literature reviews, and suggestions presented in this thesis provide a solid foundation for further research and hopefully bring the goal of automated facial metrology a little closer to being achieved.
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Migletz, James J. "Automated metadata extraction." Thesis, Monterey, Calif. : Naval Postgraduate School, 2008. http://handle.dtic.mil/100.2/ADA483465.
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Thesis (M.S. in Computer Science)--Naval Postgraduate School, June 2008.Thesis Advisor(s): Garfinkel, Simson. "June 2008." Description based on title screen as viewed on August 26, 2008. Includes bibliographical references (p.57-60). Also available in print.
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Lowell, James ? "Automated retinal analysis." Thesis, Durham University, 2006. http://etheses.dur.ac.uk/2887/.
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Diabetes is a chronic disease affecting over 2% of the population in the UK [1]. Long-term complications of diabetes can affect many different systems of the body including the retina of the eye. In the retina, diabetes can lead to a disease called diabetic retinopathy, one of the leading causes of blindness in the working population of industrialised countries. The risk of visual loss from diabetic retinopathy can be reduced if treatment is given at the onset of sight-threatening retinopathy. To detect early indicators of the disease, the UK National Screening Committee have recommended that diabetic patients should receive annual screening by digital colour fundal photography [2]. Manually grading retinal images is a subjective and costly process requiring highly skilled staff. This thesis describes an automated diagnostic system based oil image processing and neural network techniques, which analyses digital fundus images so that early signs of sight threatening retinopathy can be identified. Within retinal analysis this research has concentrated on the development of four algorithms: optic nerve head segmentation, lesion segmentation, image quality assessment and vessel width measurements. This research amalgamated these four algorithms with two existing techniques to form an integrated diagnostic system. The diagnostic system when used as a 'pre-filtering' tool successfully reduced the number of images requiring human grading by 74.3%: this was achieved by identifying and excluding images without sight threatening maculopathy from manual screening.
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Vandehey, N. T., and J. P. O\'Neil. "Automated stopcock actuator." Helmholtz-Zentrum Dresden - Rossendorf, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-166258.
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Introduction
We have developed a low-cost stopcock valve actuator for radiochemistry automation built using a stepper motor and an Arduino, an open-source single-board microcontroller. The con-troller hardware can be programmed to run by serial communication or via two 5–24 V digital lines for simple integration into any automation control system. This valve actuator allows for automated use of a single, disposable stopcock, providing a number of advantages over stopcock manifold systems available on many commercial radiochemistry rigs or over using solenoid valves. This actuator allows for the use a wide variety of stopcocks, ranging in size, shape and material, giving flexibility to be used in a large variety of applications.
Material and Methods
The actuated valve consists of two main parts, the actuator and the control electronics. The actuator consists of a stepper motor, an infrared ‘home position’ sensor, a stopcock backplate, and a coupler from the driveshaft to stopcock handle. The stepper motor is a NEMA-17 size that runs 200 steps/rotation with a 5mm drive shaft. The coupler is an interchangeable part, custom to each stopcock model, with each part drilled out to fit the motor drive shaft and milled out for a tight fit to the stopcock handle. The backplane consists of a plate offset from the motor body with 5 screws positioned to keep the stopcock body from rotating relative to the motor. A reflective optical sensor (Vishay TCRT1000) is used as a limit switch to determine a ‘home’ position for the stopcock. With a slight modification to most any stopcock in cutting off a tab that limits rotation, the handle can rotate 360°. This allows for opening all three ports to each other, which has been done to all stopcocks used with this actuator.
The control electronics consist of an Arduino Uno board and a motor shield (add-on board), connecting to the actuator by an Ethernet cable. The motor shield functions to interface the low-power Arduino circuitry with a high power H-bridge motor driver circuit. The Arduino runs two sets of code, initialization and its loop. The initialization routine runs when power is first powered up, and then continues to run the loop. The initialization routine rotates the valve until the IR limit switch is activated, and rotates an-other 45° from position home, sealing off all ports on the stopcock. Following initialization, the Arduino enters its loop, which repeatedly compares its current position to its target posi-tion. When the target position and current posi-tion do not match, the stepper motor turns in the shortest direction towards its target position. The hardware can be interfaced by either serial communication or by two 5–24V digital signals defining positions 1–4. The wide range of allowed input signal voltages is realized by using an optocoupler that accepts 5–24 V inputs but outputs TTL signals compatible with the Arduino’s hardware.
Results and Conclusion
A photo of the implementation of the actuator is shown in FIGURE 1. It has overall dimensions of 3.5×1.75×2.5”, excluding a mounting bracket. Control electronics are housed in a compact box built for an Arduino, giving the control electron-ics a clean, professional look. Challenges in de-sign included determining a maximum motor speed where the motor would provide enough torque but yet move fast enough to be useful, finding that rotational speed of 6 seconds/full rotation is best.
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West, G. "Automated shape anthropometry." Thesis, Loughborough University, 1993. https://dspace.lboro.ac.uk/2134/7430.
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In medicine, ergonomics, the clothing Industry and many other areas such as the design of 'g' suits for military aeroplane pilots and protective clothing for chemical warfare, there is a requirement for the accurate 3-D measurement of the size and shape of the human form. To meet this need a novel whole body scanner has been designed which is capable of measuring both the size and shape of people in a non invasive socially acceptable manner. The scanner uses structured light and an array of television cameras to view free standing subjects while they are being rotated on an electrically driven turntable. The accuracy and repeatability of the scanner is as good as trained anthropometrists using traditional manual methods. A computer program has been written which uses a cubic spline interpolation method to edit and interrogate the data from the scanner and arrange it in a shape matrix form. This is a new way of arranging the data which allows for the 3-D average of several bodies to be obtained and also for the comparison of one body with another. A technique which is essential if 3-D survey work is to be undertaken. Using master files which contain information from a data base of previously scanned people and eight circumferential measurements it is possible to re-create body forms of any size but which correspond to the average shape for that size. The re-creation of body shapes from eight circumferences is accurate enough for the manufacture of all but the most close fitting garments but may be more useful in the future as a replacement for somatotyping (physique classification). It is perfectly possible to manipulate the eight circumferences to create body torsos of almost any shape. Conversely a torso of almost any shape could be defined by eight two digit numbers.
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Weare, Rupert. "Automated examination timetabling." Thesis, University of Nottingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282578.
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GonzaÌlez, RodriÌguez IneÌs. "Automated prototype induction." Thesis, University of Bristol, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251139.
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Akra, Mohamad A. (Mohamad Ahmad). "Automated text recognition." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/11109.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1993.Includes bibliographical references (leaves 92-96).
by Mohamad A. Akra.
Ph.D.
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Vargach, Oleg. "Texts automated translation." Thesis, Київський національний університет технологій та дизайну, 2020. https://er.knutd.edu.ua/handle/123456789/15230.
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Conradi, Justus, and Patrik Tiainen. "Automated water mixer." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264447.
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The aim for this thesis is to explore the possibility to save both water and energy in showers. Through a quicker, more responsive and precise shower faucet using digital thermometers and stepper motors. A faucet has two input pipes with cold and hot water respectively. To reach a desired shower temperature; a single thermometer is needed, to measure the mixed water temperature. Using this information, two motors will control two valve until the desired temperature is reached. To maintain the desired temperature throughout the shower session, the temperature should be continuously monitored and when temperature disturbance occurs, the valves should compensate for it. To achieve this a demonstrator was made. The demonstrator uses stepper motors connected to valves to control the flow through a hot and cold water pipe. The system reads the temperature of the output water continuously and makes appropriate changes to the position of the valves. Due to safety concerns, no water was used in the testing of the demonstrator. The theoretical response time of the system is very short, and the demonstrator can theoretically change temperature of the mixed water by around 5°Celsius per second.Syftet med denna rapport är att utforska möjligheterna att spara både vatten och energi till duschar, genom en snabbare, mer responsiv och mer exakt duschblandare. Detta ska uppnås genom användning av digitala termometrar och stegmotorer. Duschblandaren ska läsa temperaturerna av det blandade vattnet, och justera respektive kran tills önskad temperatur är uppnådd. För att bibehålla önskad temperatur kommer temperaturen kontinuerligt övervakas. När störningar i temperatur uppkommer ska duschblandaren kompensera för det, och därmed hallå en konstant temperatur. För att åstadkomma detta byggdes en demonstrationsenhet. Denna demonstrationsenhet använder stegmotorer kopplade till kranar för att kontrollera flödet genom ett varmt och ett kallt vattenrör. Systemet läser konstant temperaturen av det blandade vattnet och gör lämpliga ändringar av kranarnas positioner. På grund av säkerhetsrisk användes inget vatten vid testning av demonstrationsenheten. Den teoretiska responstiden av systemet är mycket kort, och demonstrationsenheten kan teoretiskt ändra temperatur av det blandade vattnet med en hastighet av ungefär 5°Celsius per sekund.
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Ortner, Jens, and Erik Ågren. "Automated Hydroponic system." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264438.
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This report includes research into how to automate a small scale system for hydroponics. Hydroponics is a growing technique which features a soil-less environment were the plants roots are exposed to a nutrient-enriched water solution. The research focused mainly on how to regulate the pH and the level of nutrient in the water solvent and finding a system to automate that process. In the research fully grown basil plants were used as test specimens, with the plants roots submerged in a water solvent. The water solvent had sensors that were connected to a micro controller making it possible to monitor the presence of nutrients and pH in the solvent. If the micro controller deemed that the pH and/or the nutrient level was too high or too low, the micro controller would adjust the solvent by activating pumps adding pH down buffer solution and/or nutrient solution to the solvent. The research proved that a way to automate a small scale hydroponics system is by building a computerized system consisting of: • Micro controller. • pH sensor. •EC sensor (to measure nutrient level in solvent). • Temperature sensor. • Fluid pumps connected to pH- and nutrient reservoirsI denna rapport följer en forskning om hur ett system för hydroponics kan automatiseras. Hydroponics är en odlingsteknik som utesluter nyttjandet av jord. Istället får plantorna näring och vatten via en näringsrik vattenlösning som dess rötter är i kontakt med. Forskningen fokuserade huvudsakligen på hur man reglerar pH och nivån av näringsämnen i en vattenlösning och skapa ett system för att automatisera denna processen. I undersökningen användes fullvuxna basilikaväxter som prover med plantornas rötter nedsänkta i en vattenlösning. Vattenlösningen hade sensorer som var anslutna till en mikrostyrenhet som gjorde det möjligt att övervaka nivån av näringsämnen och pH i vattenlösningen. Om mikrokontrollen ansåg att pH- och/eller nivån av näringsämnen var felaktig så skulle mikrostyrenheten justera vattenlösningen. Detta skedde genom att mikrostyrenheten aktiverade vätskepumpar som tilsatte pH-buffer och/eller näringslösning. Forskningen visade att ett sätt att automatisera ett hydroponicsystem är att bygga ett datoriserat system som består utav: mikrostyrenhet. pH mätare. EC mätare (används för att mäta näringsnivån i vattenlösningen). Temperaturmätare. Vätskepumpar anslutna till behållare inehållandes pH- och näringslösning.
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Butler, Joseph G. "Automated Fingertip Detection." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3164.
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One of the oldest biometrics that has been used to uniquely identify a person is their fingerprint. Recent developments in research on fingerprint collection have made it possible to collect fingerprint data from a stand-off digital image. Each of the techniques developed so far have relied on either a very controlled capture environment to ensure only a single fingertip is collected or manual cropping of the image down to the fingertip. The main body of the research focuses on extracting the fingerprint itself. If fingerprint collection via digital image is ever to be fielded in the real world on such devices as smart phones or tablets it will be necessary for the software to automatically detect a single or multiple fingertips in an image and isolate them for extracting the fingerprint. We introduce an automatic fingertip detection algorithm that couples image processing techniques with a machine learning capability to successfully identify varying numbers of fingertips in digital images. Our algorithm proves that while it is difficult to remove all constraints from the capture environment it is achievable with the method we have developed and we can achieve a recall of 69.77% at a precision of 78.95%. This gives us the important capability to detect varying numbers of fingertips in an image and provide a crucial piece in what could be a complete automated fingerprint recognition system.
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August, Tynong. "Automated test process." Thesis, Uppsala universitet, Signaler och System, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-396275.
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This thesis investigates solutions to automate a lab process and give the customer basis for investment. An analysis of the current lab process and interviews with the staff were performed to set requirements for an automated solution. The customer wants to perform an analysis on a large number of combinations between antibiotics and bacteria. The issues that an automated solution is not able to handle were identified for the customer. A market analysis of existing solutions was preformed and contact was established with different suppliers. The suggested products were evaluated by performance and if they would be able to adapt to the process. The evaluation shows that with the same number of working hours the customer can increase the productivity with 6.7 times using a semi-automated system and a fully-automated system will result in an increase of 18.3 times. A guidance of how the customer will implement the system is described in the report. The report shows that an automated solution will make their process more efficient.
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Uttendorf, Sarah [Verfasser]. "Automated Generation of Roadmaps for Automated Guided Vehicle Systems / Sarah Uttendorf." Garbsen : TEWISS - Technik und Wissen GmbH, 2019. http://d-nb.info/1193515491/34.
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Gutierrez, Lopez Armando, and Viela Ignacio Manuel Mulas. "Automated Telecommunication Software Testing : An automated model generator for Model-Based Testing." Thesis, KTH, Kommunikationssystem, CoS, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-93852.
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In Model-Based Testing (MBT) the main goal is to test a system by designing models which describe the functionality of the system to test. Subsequently, test cases are obtained from the model, and these test cases can be executed automatically. Experience has shown that the learning curve for learning MBT can be steep - especially for people who do not have previous programming experience. This is because the language used to design models uses programming language concepts. In this thesis we describe a tool which automatically generates models, given an initial set of requirements. The advantage of this tool is that users do not need to learn a model-based testing language to design models, but instead they must learn to use a high-level of abstraction and a Graphical User Interface to specify their test cases. We demonstrate the value of the tool by using it to design models that generate test cases for telecommunications system, but show that this tool can be adapted for use in testing similar systems. The application of this tool can facilitate traditional phase-based software development methods, by saving a considerable amount of time and resources. In addition, when applied to agile software development, the reduced time required for testing because of the use of our tool helps shortening the feedback loops between designing and testing, thus increasing team efficiency within every iteration.I Model-Based Testing (MBT) är det huvudsakliga målet att testa ett system genom modeller som beskriver systemets unktionalitet för att testa. Därefter erhålls testfall från modellen, och dessa testfall kan utföras automatiskt. Erfarenheten har visat att inlärningskurvan för lärande MBT kan vara branta - särskilt för personer som inte har tidigare erfarenhet av programmering. Detta beror på det språk som används för användning programmeringsspråk begrepp. I denna avhandling beskriver vi ett verktyg som automatiskt genererar modellerna, med tanke på en första uppsättning krav. Fördelen med detta verktyg är att användarna inte behöver lära sig en modellbaserad testning av språket att konstruera modeller, utan de måste lära sig att använda en hög nivåav abstraktion och ett grafiskt användargränssnitt för att ange sina testfall. Vi demonstrerar värdet av verktyget genom att använda den för att konstruera modeller som genererar testfall för telekommunikationssystem, men visar att detta verktyg kan anpassas för användning vid testning av liknande system. Tillämpningen av detta verktyg kan underlätta traditionella fas-baserade metoder mjukvaruutveckling, genom att spara en avsevärd tid och resurser. Dessutom, när det tillämpas på Agile Software utveckling, minskade tid som krävs för att testa på grund av användningen av vårt verktyg hjälper förkorta återkopplingar mellan design och testning, vilket ökar teamet effektiviteten inom varje iteration.
En Model-Based Testing (MBT), el objetivo principal es testear un sistema mediante el diseño de modelos que describan su funcionalidad. En consecuencia, estos modelos generan test cases que pueden ser ejecutados automáticamente en dicho sistema. La experiencia nos muestra que la curva de aprendizaje en el caso de MBT puede ser pronunciada, especialmente para aquellos sin ninguna experiencia previa en programación. Esto se debe a que los lenguajes usados para diseñar modelos usan conceptos intrínsecos a los lenguajes de programación. En este Proyecto Fin de Carrera, describimos una herramienta que genera automáticamente modelos, dado un conjunto de requisitos inicial. La ventaja que ofrece esta herramienta es que los usuarios no requieren el aprendizaje de ninguno lenguaje de modelado a la hora de diseñar modelos, sino que tan solo deben aprender a utilizar una Interfaz de Usuario Gráfica (GUI), a un alto nivel de abstracción, para especificar sus test cases. Demostramos el valor de esta herramienta mediante su aplicación en un nuevo sistema de telecomunicaciones en fase de pruebas de Ericsson, mostrando al mismo tiempo que puede ser utilizada en el testeo de sistemas similares. La aplicación de esta herramienta puede facilitar los métodos de desarrollo de software tradicionales mediante el ahorro de una cantidad considerable de tiempo y recursos. Además, aplicada a métodos de desarrollo ágil de software, el tiempo reducido requerido para el testing a causa del uso de esta herramienta ayuda a acortar los plazos entre diseño y testing, y en consecuencia, incrementando la eficiencia del equipo en cada iteración.
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De, Vos Jacques Pinard. "Automated pediatric cardiac auscultation." Thesis, Link to the online version, 2005. http://hdl.handle.net/10019/1008.
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Nalla, Vijay Kumar Reddy Rogan Peter K. "Automated splice site analysis." Diss., UMK access, 2005.
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Thesis (M.S.)--School of Computing and Engineering. University of Missouri--Kansas City, 2005."A thesis in computer science." Typescript. Advisor: Peter K. Rogan. Vita. Title from "catalog record" of the print edition Description based on contents viewed June 26, 2006. Includes bibliographical references (leaves 76-80). Online version of the print edition.
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Zhan, Zhiyan. "Automated test case selection." Thesis, University of Ottawa (Canada), 1995. http://hdl.handle.net/10393/10209.
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In this thesis, we present an automatic test case selection system, which aims at selecting test cases for both control and data flow oriented testing. In our system, path expressions are employed, path expression generation and complete path selection algorithms are used to achieve the automation of path selection, and problems with loop iterations are addressed. Partial symbolic execution is applied to reduce the effort wasted in analyzing infeasible paths. Linear programing, path predicate simplification, and path predicate evaluation techniques are employed to solve the inequalities resulted from partial symbolic execution as well as symbolic execution. Our system is also capable of selecting different sets of test cases by applying different test selection criteria to achieve different test coverage which serve different test purposes. In our system, first a flowgraph modeling both control and data flow information contained in the program under test is constructed. Second, by applying a control or data flow oriented test selection criterion to this flowgraph, a set of test units is built. Finally, through path expression generation, partial symbolic execution, symbolic execution. predicate simplification/evaluation, and linear programming, a set of test cases is selected examples produced by ETSG are provided.
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Astapenko, D. "Automated system design optimisation." Thesis, Loughborough University, 2010. https://dspace.lboro.ac.uk/2134/6863.
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The focus of this thesis is to develop a generic approach for solving reliability design optimisation problems which could be applicable to a diverse range of real engineering systems. The basic problem in optimal reliability design of a system is to explore the means of improving the system reliability within the bounds of available resources. Improving the reliability reduces the likelihood of system failure. The consequences of system failure can vary from minor inconvenience and cost to significant economic loss and personal injury. However any improvements made to the system are subject to the availability of resources, which are very often limited. The objective of the design optimisation problem analysed in this thesis is to minimise system unavailability (or unreliability if an unrepairable system is analysed) through the manipulation and assessment of all possible design alterations available, which are subject to constraints on resources and/or system performance requirements. This thesis describes a genetic algorithm-based technique developed to solve the optimisation problem. Since an explicit mathematical form can not be formulated to evaluate the objective function, the system unavailability (unreliability) is assessed using the fault tree method. Central to the optimisation algorithm are newly developed fault tree modification patterns (FTMPs). They are employed here to construct one fault tree representing all possible designs investigated, from the initial system design specified along with the design choices. This is then altered to represent the individual designs in question during the optimisation process. Failure probabilities for specified design cases are quantified by employing Binary Decision Diagrams (BDDs). A computer programme has been developed to automate the application of the optimisation approach to standard engineering safety systems. Its practicality is demonstrated through the consideration of two systems of increasing complexity; first a High Integrity Protection System (HIPS) followed by a Fire Water Deluge System (FWDS). The technique is then further-developed and applied to solve problems of multi-phased mission systems. Two systems are considered; first an unmanned aerial vehicle (UAV) and secondly a military vessel. The final part of this thesis focuses on continuing the development process by adapting the method to solve design optimisation problems for multiple multi-phased mission systems. Its application is demonstrated by considering an advanced UAV system involving multiple multi-phased flight missions. The applications discussed prove that the technique progressively developed in this thesis enables design optimisation problems to be solved for systems with different levels of complexity. A key contribution of this thesis is the development of a novel generic optimisation technique, embedding newly developed FTMPs, which is capable of optimising the reliability design for potentially any engineering system. Another key and novel contribution of this work is the capability to analyse and provide optimal design solutions for multiple multi-phase mission systems. Keywords: optimisation, system design, multi-phased mission system, reliability, genetic algorithm, fault tree, binary decision diagram
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Bassett, Robert M. "Automated satellite image navigation." Thesis, Monterey, California. Naval Postgraduate School, 1992. http://hdl.handle.net/10945/23552.
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Approved for public release; distribution is unlimitedThis study investigated the automated satellite image navigation method (Auto-Avian) developed and tested by Spaulding (1990) at the Naval Postgraduate School. The Auto-Avian method replaced the manual procedure of selecting Ground Control Points (GCPs) with an autocorrelation process that utilizes the World Vector Shoreline (WVS) provided by the Defense Mapping Agency (DMA) as a "string" of GCPs to rectify satellite images. The automatic cross-correlation of binary references (WVS) and search (image) windows eliminated the subjective error associated with the manual selection of GCPs and produced accuracies comparable to the manual method. This study expanded the scope of Spaulding's (1990) research. The worldwide application of the Auto-Avian method was demonstrated in three world regions (eastern North Pacific Ocean, eastern North Atlantic Ocean, and Persian Gulf). Using five case studies, the performance of the Auto-Avian method on "less than optimum" images (i.e., islands, coastlines affected by lateral distortion and/or cloud cover) was investigated. The result indicated that utilizing the Auto-Avian method on these "less than optimum images" could achieve navigational accuracies approaching those obtained by Spaulding (1990).
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Skimmons, Brian E. "Automated performance evaluation technique." Thesis, Monterey, California. Naval Postgraduate School, 1992. http://hdl.handle.net/10945/23551.
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Pantoja, Francisco Carlos Melo. "Automated fiber optic measurements." Thesis, Monterey, California. Naval Postgraduate School, 1989. http://hdl.handle.net/10945/25707.
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May, Alexander Conrad William. "Automated comparative protein modelling." Thesis, Birkbeck (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243603.
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Sirajuddin, Abdullah Mohammad Yar. "An automated project planner." Thesis, University of Nottingham, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417805.
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DeSouza, Mary (Mary Teresa) 1977. "Automated medical trend detection." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/86472.
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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.Includes bibliographical references (leaves 62-63).
by Mary DeSouza.
M.Eng.
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Syed, Zeeshan Hassan 1980. "MIT Automated Auscultation System." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/18018.
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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.Includes bibliographical references (p. 123-127).
At every annual exam, the primary care physician uses a stethoscope to listen for cardiac abnormalities. This approach is non-invasive, inexpensive, and fast. It is also highly unreliable. Over 80% of the people referred to cardiologists as suffering from the most commonly diagnosed condition, mitral valve prolapse (MVP), do not have this condition. Working in conjunction with cardiologists at MGH, we developed a robust, low cost, easy to use tool that can be employed to diagnose MVP in the office of primary care physicians. The system fuses signals from an electronic stethoscope and a two-lead EKG, and uses software running on a desktop or laptop computer to make a diagnosis. We also provide a number of novel audiovisual diagnostic aids. These allow physicians to visualize both individual heart beats and a visual-prototypical heart beat constructed from a sequence of beats. They also permit doctors to listen to an audio-prototypical heart-beat, audio enhanced heart-beats that amplify clinically significant sounds, and slowed down heart-beats that make it easier to separate clinically relevant cardiac events. We tested our system on 51 patients. The number of false positives was reduced to approximately 10%. While there is no generally accepted statistic on false negatives, anecdotal experience indicates that our system also outperforms physicians in this respect.
by Zeeshan Hassan Syed.
M.Eng.
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Lui, Jerome C. (Jerome Chun Lung). "Automated MOSFET parameter extraction." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/36583.
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Chen, Chun-Cheng Richard 1977. "Automated cardiovascular system identification." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/81537.
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Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.Includes bibliographical references (p. 64-65).
by Chun-Cheng Chen.
S.B.and M.Eng.
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Mijalis, Alexander James. "Automated flow peptide synthesis." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/118272.
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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 2018.Cataloged from PDF version of thesis.
Includes bibliographical references.
Though reported by Merrifield nearly sixty years ago, batch solid phase peptide synthesis remains slow at minutes to hours per residue. Here we report a fully automated, flow based approach to solid phase polypeptide synthesis with amide bond formation in seven seconds and total synthesis times of forty seconds per amino acid residue. Crude peptide purities and isolated yields were comparable to standard batch solid phase peptide synthesis. Process monitoring with absorbance spectroscopy allows for the immediate detection and rapid optimization of difficult-to-synthesize peptides. This instrument is flexible and allows for synthesis of peptide nucleic acids, glycopeptides, removal of orthogonal amine protecting groups, and click chemistry on the solid phase. At full capacity, this approach to peptide synthesis can yield tens of thousands of individual 30-mer peptides per year.
by Alexander James Mijalis.
Ph. D.
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Sharathkumar, Sudhindra. "An Automated Data Warehouse." ScholarWorks@UNO, 2003. http://scholarworks.uno.edu/td/36.
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An increasing number of organizations are implementing data warehouses to strengthen their decision support systems. This comes with the challenges of the population and the periodic update of data warehouses. In this thesis, we present a tool that provides users with features to create a warehouse database and transform structures of the source database into structures for the warehouse database. It is highly interactive, easy to use, and hides the underlying complexity of manual SQL code generation from its users. Attributes from source tables can be mapped into new attributes in the warehouse database tables using aggregate functions. Then, relevant data is automatically transported from the source database to the newly created warehouse. The tool thus integrates warehouse creation, schema mapping and data population into a single generalpurpose tool. This tool has been designed as a component of the framework for an automated data warehouse being developed at theComputer Science Department, University of New Orleans. Users of this framework are the database administrators, who will also be able to synchronize updates of multiple copies of the data warehouse. Warehouse images that need to be updated are taken offline and applications that need to access the data warehouse can now access any of the other image warehouses. The Switching Application built into this framework switches between databases in a way that is totally transparent to applications so that they do not realize existence of multiple copies of the data warehouse. In effect, even non-technical users can create, populate and update data warehouses with minimal time and effort.
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Barone, Joshua M. "Automated Timeline Anomaly Detection." ScholarWorks@UNO, 2013. http://scholarworks.uno.edu/td/1609.
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Digital forensics is the practice of trained investigators gathering and analyzing evidence from digital devices such as computers and smart phones. On these digital devices, it is possible to change the time on the device for a purpose other than what is intended. Currently there are no documented techniques to determine when this occurs. This research seeks to prove out a technique for determining when the time has been changed on forensic disk image by analyzing the log files found on the image. Out of this research a tool is created to perform this analysis in automated fashion. This tool is TADpole, a command line program that analyzes the log files on a disk image and determines if a timeline anomaly has occurred.
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Fernández, Carbonell Marcos. "Automated Multimodal Emotion Recognition." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-282534.
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Being able to read and interpret affective states plays a significant role in human society. However, this is difficult in some situations, especially when information is limited to either vocal or visual cues. Many researchers have investigated the so-called basic emotions in a supervised way. This thesis holds the results of a multimodal supervised and unsupervised study of a more realistic number of emotions. To that end, audio and video features are extracted from the GEMEP dataset employing openSMILE and OpenFace, respectively. The supervised approach includes the comparison of multiple solutions and proves that multimodal pipelines can outperform unimodal ones, even with a higher number of affective states. The unsupervised approach embraces a traditional and an exploratory method to find meaningful patterns in the multimodal dataset. It also contains an innovative procedure to better understand the output of clustering techniques.Att kunna läsa och tolka affektiva tillstånd spelar en viktig roll i det mänskliga samhället. Detta är emellertid svårt i vissa situationer, särskilt när information är begränsad till antingen vokala eller visuella signaler. Många forskare har undersökt de så kallade grundläggande känslorna på ett övervakat sätt. Det här examensarbetet innehåller resultaten från en multimodal övervakad och oövervakad studie av ett mer realistiskt antal känslor. För detta ändamål extraheras ljud- och videoegenskaper från GEMEP-data med openSMILE respektive OpenFace. Det övervakade tillvägagångssättet inkluderar jämförelse av flera lösningar och visar att multimodala pipelines kan överträffa unimodala sådana, även med ett större antal affektiva tillstånd. Den oövervakade metoden omfattar en konservativ och en utforskande metod för att hitta meningsfulla mönster i det multimodala datat. Den innehåller också ett innovativt förfarande för att bättre förstå resultatet av klustringstekniker.
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Ye, Xin. "Automated Software Defect Localization." Ohio University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1462374079.
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Kattenbelt, Mark Alex. "Automated quantitative software verification." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:62430df4-7fdf-4c4f-b3cd-97ba8912c9f5.
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Many software systems exhibit probabilistic behaviour, either added explicitly, to improve performance or to break symmetry, or implicitly, through interaction with unreliable networks or faulty hardware. When employed in safety-critical applications, it is important to rigorously analyse the behaviour of these systems. This can be done with a formal verification technique called model checking, which establishes properties of systems by algorithmically considering all execution scenarios. In the presence of probabilistic behaviour, we consider quantitative properties such as "the worst-case probability that the airbag fails to deploy within 10ms", instead of qualitative properties such as "the airbag eventually deploys". Although many model checking techniques exist to verify qualitative properties of software, quantitative model checking techniques typically focus on manually derived models of systems and cannot directly verify software. In this thesis, we present two quantitative model checking techniques for probabilistic software. The first is a quantitative adaptation of a successful model checking technique called counter-example guided abstraction refinement which uses stochastic two-player games as abstractions of probabilistic software. We show how to achieve abstraction and refinement in a probabilistic setting and investigate theoretical extensions of stochastic two-player game abstractions. Our second technique instruments probabilistic software in such a way that existing, non-probabilistic software verification methods can be used to compute bounds on quantitative properties of the original, uninstrumented software. Our techniques are the first to target real, compilable software in a probabilistic setting. We present an experimental evaluation of both approaches on a large range of case studies and evaluate several extensions and heuristics. We demonstrate that, with our methods, we can successfully compute quantitative properties of real network clients comprising approximately 1,000 lines of complex ANSI-C code — the verification of such software is far beyond the capabilities of existing quantitative model checking techniques.
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Corrêa, da Silva Flávio S. "Automated reasoning with uncertainties." Thesis, University of Edinburgh, 1993. http://hdl.handle.net/1842/19647.
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In this work we assume that uncertainty is a multifaceted concept which admits several different measures, and present a system for automated reasoning with multiple representations of uncertainty. Our focus is on problems which present more than one of these facets and therefore in which a multivalued representation of uncertainty and the study of its possibility of computational realisation are important for designing and implementing knowledge-based systems. We present a case study on developing a computational language for reasoning with uncertainty, starting with a semantically sound and computationally tractable language and gradually extending it with specialised syntactic constructs to represent measures of uncertainty, preserving its unambiguous semantic characterisation and computability properties. Our initial language is the language of normal clauses with SLDNF as the inference rule, and we select three facets of uncertainty, which are not exhaustive but cover many situations found in practical problems: vagueness, statistics and degrees of belief. To each of these facets we associate a specific measure: fuzzy measures to vagueness, probabilities on the domain to statistics and probabilities on possible worlds to degrees of belief. The resulting language is semantically sound and computationally tractable, and admits relatively efficient implementations employing α-β pruning and caching.
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Svahn, Caroline. "Automated Bug Report Routing." Thesis, Linköpings universitet, Statistik och maskininlärning, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-139037.
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As the software industry grows larger by the minute, the need for automated solutions within bug report management is on the rise. Although some research has been conducted in the area of bug handling, new, faster or more precise approaches are yet to be developed. A bug report typically contains a free text observations field where the issue can be described by a human. Research regarding processing of this type of field is extensive, however, bug reports are often accompanied with system log files which have been given less attention so far. In the 4G LTE telecommunications network, the available system log files are many and several are likely to aid the routing of bug reports. In this thesis, one system log file was chosen to be evaluated; the alarm log. The alarm logs are time series count data containing alarms raised by the system. The alarm log data have been pre-processed with data mining techniques. The Apriori algorithm has been used to mine for specific alarms and alarming objects which indicates that the bug report should be solved by a particular developer group. We extend the Apriori algorithm to a temporal setting by using a customised time dependent confidence measure. To further mine for interesting sequences of events in the logs, the sequence mining approach SPADE has been used. The extracted class-associated sequences from both pre-processing approaches are transformed into binary features possible to use as predictors in any prediction model. The results have been evaluated by predicting the correct developer group with two different methods; logistic regression and DO-probit. Logistic regression was regularised with the elastic net penalty to avoid computational issues as well as handling the sparse covariate set. DO-probit was used with a horseshoe prior; it is well suited for the sparse covariate regression problem as it is customised to obtain signals in sparse, noisy data. The results indicate that a data mining approach for processing alarm logs is promising. The results show that the rules obtained with the Apriori mining process are suitable for mining the alarm logs as most binary representations of the rules used as covariates in logistic regression are kept in the equations for the expected classes with strongly positive coefficients. Although, the overall improvement in accuracy from using the alarms logs in addition to the learned topics from free text fields is modest, the alarm logs are concluded to be a good complement to the free text information as some Apriori covariates appears to be better suited to predict some classes than some topics.
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Smal, Eugene. "Automated brick sculpture construction." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019/1621.
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