Tesis sobre el tema "Alignment"
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Starrett, Dean. "Optimal Alignment of Multiple Sequence Alignments". Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/194840.
Texto completoFloden, Evan 1985. "Alignment uncertainty, regressive alignment and large scale deployment". Doctoral thesis, Universitat Pompeu Fabra, 2018. http://hdl.handle.net/10803/665300.
Texto completoUn alineament de seqüència múltiple (MSA) proporciona una descripció de la relació entre seqüències biològiques on les columnes representen una ascendència compartida a través d'un conjunt implicat d'esdeveniments evolutius. La majoria de la investigació en el camp s'ha centrat a millorar la precisió dels alineaments dins del marc d'alineació progressiva i ha permès inferències poderoses, incloent-hi la reconstrucció filogenètica, el modelatge d'homologia i la predicció de malalties. Malgrat això, quan s'aplica als conjunts de dades de genòmica moderns, que sovint comprenen desenes de milers de seqüències, sorgeixen nous reptes en la construcció d'un MSA precís. Aquests problemes es poden generalitzar per formar tres problemes bàsics. En primer lloc, a mesura que augmenta el nombre de seqüències, les metodologies d'alineació progressiva presenten una disminució espectacular de la precisió de l'alineació. A més, per a un conjunt de dades, existeixen molts MSA com a possibles solucions un problema que s'agreuja amb un nombre creixent de seqüències a causa de la incertesa d'alineació. Finalment, les dificultats tècniques obstaculitzen el desplegament d'aquests fluxos de treball d'anàlisi genòmica, especialment de manera reproduïble, sovint presenten una gran barrera per als professionals fins i tot qualificats. Aquest treball té com a objectiu abordar aquesta trifecta de problemes a través d'un servidor web per a l'extensió ràpida d'homologia basada en MSA, dos nous mètodes per a la millora de l'arrencada filogenètica permeten incorporar incertesa d'alineació, un nou procediment d'alineació que millora els alineaments a gran escala anomenat MSA regressivu i, finalment, un marc de flux de treball permet el desplegament d'anàlisis reproduïbles a gran escala a través de clústers i computació al núvol anomenat Nextflow. En conjunt, es pot veure que aquest treball proporciona tant avanços conceptuals com tècniques que proporcionen millores substancials als mètodes MSA existents i les conseqüències resultants.
SUBRAMANIAN, SUCHITHA. "PROTEIN STRUCTURE ALIGNMENT USING A GENERALIZED ALIGNMENT MODEL". University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1191966691.
Texto completoChia, Nicholas Lee-Ping. "Sequence alignment". Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1154616122.
Texto completoWagner, Katharina. "Image Alignment". Bachelor's thesis, Universitätsbibliothek Chemnitz, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200901305.
Texto completoIvanova, Valentina. "Fostering User Involvement in Ontology Alignment and Alignment Evaluation". Doctoral thesis, Linköpings universitet, Databas och informationsteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-143034.
Texto completoMaezawa, Akira. "Bayesian Music Alignment". 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/199430.
Texto completoSanchez, Alejandro Gonzalez. "Cosmological alignment effects". Thesis, University of Sussex, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385966.
Texto completoBhuta, Asim. "Shoulder implant alignment". Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/60079.
Texto completoKraft, Adam Davis. "Vision by alignment". Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/115632.
Texto completoThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 127-134).
Human visual intelligence is robust. Vision is versatile in its variety of tasks and operating conditions, it is flexible, adapting facilely to new tasks, and it is introspective, providing compositional explanations for its findings. Vision is fundamentally underdetermined, but it exists in a world that abounds with constraints and regularities perceived not only through vision but through other senses as well. These observations suggest that the imperative of vision is to exploit all sources of information to resolve ambiguity. I propose an alignment model for vision, in which computational specialists eagerly share state with their neighbors during ongoing computations, availing themselves of neighbors' partial results in order to ll gaps in evolving descriptions. Connections between specialists extend across sensory modalities, so that the computational machinery of many senses may be brought to bear on problems with strictly-visual inputs. I anticipate that this alignment process accounts for vision's robust attributes, and I call this prediction the alignment hypothesis. In this document I lay the groundwork for evaluating the hypothesis. I then demonstrate progress toward that goal, by way of the following contributions: -- I performed an experiment to investigate and characterize the ways that high-performing computer-vision models fall short of robust perception, and evaluated whether alignment models can address the shortcomings. The experiment, which relied on a procedure to remove signal energy from natural images while preserving high classication condence by a neural network, revealed that the type of object depicted in the original image is a strong predictor of whether humans recognize the reduced-energy image. -- I implemented an alignment model based on a network of propagators. The model can use constraints to infer locations and heights of pedestrians and locations of occluding objects in an outdoor urban scene. I used the results of the effort to refine the requirements of mechanisms to use in building alignment models. -- I implemented an alignment model based on neural networks. Alignment-motivated design empowers the model, trained to estimate depth maps from single images, to perform the additional task of depth super-resolution without retraining. The design thus demonstrates flexibility, a property of robust vision systems.
by Adam Davis Kraft.
Ph. D.
Gomes, Luís Manuel dos Santos. "Parallel texts alignment". Master's thesis, FCT - UNL, 2009. http://hdl.handle.net/10362/2051.
Texto completoAlignment of parallel texts (texts that are translation of each other) is a required step for many applications that use parallel texts, including statistical machine translation, automatic extraction of translation equivalents, automatic creation of concordances, etc. This dissertation presents a new methodology for parallel texts alignment that departs from previous work in several ways. One important departure is a shift of goals concerning the use of lexicons for obtaining correspondences between the texts. Previous methods try to infer a bilingual lexicon as part of the alignment process and use it to obtain correspondences between the texts. Some of those methods can use external lexicons to complement the inferred one, but they tend to consider them as secondary. This dissertation presents several arguments supporting the thesis that lexicon inference should not be embedded in the alignment process. The method described complies with this statement and relies exclusively on externally managed lexicons to obtain correspondences. Moreover, the algorithms presented can handle very large lexicons containing terms of arbitrary length. Besides the exclusive use of external lexicons, this dissertation presents a new method for obtaining correspondences between translation equivalents found in the texts. It uses a decision criteria based on features that have been overlooked by prior work. The proposed method is iterative and refines the alignment at each iteration. It uses the alignment obtained in one iteration as a guide to obtaining new correspondences in the next iteration, which in turn are used to compute a finer alignment. This iterative scheme allows the method to correct correspondence errors from previous iterations in face of new information.
Carleton, Kristin Rose. "Out of Alignment". Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/24813.
Texto completoMaster of Architecture
Lee, Kevin F. Corkum Paul. "Controlling molecular alignment". *McMaster only, 2006.
Buscar texto completoWheelan, Sarah J. "The alignment manager". Available to US Hopkins community, 2003. http://wwwlib.umi.com/dissertations/dlnow/3080794.
Texto completoAl, Ghamdi Manal. "Video sequence alignment". Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/9056/.
Texto completoAnthonisz, Angela Jean. "Strategic alignment or non-alignment : the management of human capital in Dubai". Thesis, University of Derby, 2018. http://hdl.handle.net/10545/623047.
Texto completoSammeth, Michael. "Integrated multiple sequence alignment". [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=98148767X.
Texto completoPowell, David Richard 1973. "Algorithms for sequence alignment". Monash University, School of Computer Science and Software Engineering, 2001. http://arrow.monash.edu.au/hdl/1959.1/8051.
Texto completoShokri, Razaghi Hazhir. "Study of Interference Alignment". Thesis, KTH, Kommunikationsteori, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-120502.
Texto completoDrayer, Benjamin [Verfasser] y Thomas [Akademischer Betreuer] Brox. "Object alignment and detection". Freiburg : Universität, 2017. http://d-nb.info/1156532620/34.
Texto completoPlüschke, Mareike. "Peak alignment in Estonian". Diss., Ludwig-Maximilians-Universität München, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-158743.
Texto completoWilloughby, Patrick (Patrick John) 1978. "Elastically averaged precision alignment". Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/30361.
Texto completoThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Includes bibliographical references (p. 107-110).
One of the most important steps in designing a machine is the consideration of the effect of interfaces between components. A badly designed interface can vary from costly difficulties such as additional control or calibration to machine failure. For precision assemblies such as automobile engines, robotics, and many measurement devices, exact constraint techniques have been used to align removable components. Exact constraint typically requires controlled precision machining to allow an interface to be repeatable and interchangeable. Elastic averaging techniques can be used instead of exact constraint to create less repeatable interfaces with more generous machining requirements. Elastic averaging represents a subset of coupling types where improved accuracy is derived from the averaging of errors over a large number of relatively compliant contacting members. Repeatability and accuracy obtained through elastic averaging can be nearly as high as in deterministic systems, elastic averaging design allows for higher stiffness and lower local stress when compared to kinematic couplings. In this thesis, a model of elastic averaging has been developed to predict the effects of manufacturing variations on design. To demonstrate the capabilities of this model, a new fiber optic connector has been designed with elastic averaging and precision injection molding in mind. Simulations predict repeatability of approximately 5 micrometers for a 5X scale version, which agreed with experimental measurements. Fidelity parts were produced using the Silicon Insert Molded Plastics process (SIMP). SIMP uses microfabricated silicon inserts in a traditional injection mold to create parts with micro-scale features.
(cont.) The SIMP fidelity parts were measured to estimate manufacturing repeatability of approximately 5 micrometers. Using this repeatability, simulations predict that the actual scale version has repeatability of approximately 0.5 micrometers
by Patrick Willoughby.
Ph.D.
Birney, Ewan. "Sequence alignment in bioinformatics". Thesis, University of Cambridge, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621653.
Texto completoRaglianti, Felipe. "The alignment of screens". Thesis, Lancaster University, 2016. http://eprints.lancs.ac.uk/83056/.
Texto completoShen, Wenzhuo. "EXPLAIN SINO-RUSSIAN ALIGNMENT". University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1037975753.
Texto completoHuang, Hung-Jin, Rachel Mandelbaum, Peter E. Freeman, Yen-Chi Chen, Eduardo Rozo y Eli Rykoff. "Intrinsic alignment in redMaPPer clusters – II. Radial alignment of satellites towards cluster centres". OXFORD UNIV PRESS, 2018. http://hdl.handle.net/10150/627131.
Texto completoJansson, Daniel y Joel Karlsson. "Strategic Alignment and its influence on Purchasers : Propositions for constructing the strategic alignment". Thesis, Högskolan i Jönköping, Internationella Handelshögskolan, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-30811.
Texto completoNguyen, Ken D. "Multiple Biolgical Sequence Alignment: Scoring Functions, Algorithms, and Evaluations". Digital Archive @ GSU, 2011. http://digitalarchive.gsu.edu/cs_diss/62.
Texto completoIsa, Mohammad Nazrin. "High performance reconfigurable architectures for biological sequence alignment". Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/7721.
Texto completoBlanco, García Enrique. "Meta-alignment of biological sequences". Doctoral thesis, Universitat Politècnica de Catalunya, 2006. http://hdl.handle.net/10803/6654.
Texto completoÉs llavors quan la comparació directa entre dues seqüències no es capaç de revelar aquelles estructures d'ordre superior que podrien explicar la relació establerta entre aquestes seqüències.
Amb aquest treball hem contribuït a millorar la forma en que dues seqüències poden ser comparades, desenvolupant una família d'algorismes d'alineament de la informació d'alt nivell codificada en seqüències biològiques (meta-alineaments). Inicialment, hem redissenyat un antic algorisme, basat en programació dinàmica, que és capaç d'alinear dues seqüències de meta-informació, procedint després a introduir-hi vàries millores per accelerar la seva velocitat. A continuació hem desenvolupat un algorisme de meta-aliniament capaç d'alinear un número múltiple de seqüències, combinant l'algorisme general amb un esquema de clustering jeràrquic. A més, hem estudiat les propietats dels meta-alineaments produïts, modificant l'algorisme per tal d'identificar alineaments amb una configuració no necessàriament col.lineal, el que permet llavors la detecció de permutacions en els resultats.
La vida molecular és un exemple paradigmátic de la versatilitat de les seqüències. Les comparaciones entre genomes, ara que la seva seqüència està disponible, permeten identificar numerosos elements biològicament funcionals. La seqüència de nucleòtids de molts gens, per exemple, es troba acceptablement conservada entre diferents espècies. En canvi, les seqüències que regulen la activació dels propis gens són més curtes i variables. Així l'activació simultànea d'un conjunt de gens es pot explicar només a partir de la conservació de configuracions comunes d'elements reguladors d'alt nivell i no pas a partir de la simple conservació de les seves seqüències. Per tant, hem entrenat els nostres programes de meta-alineament en una sèrie de conjunts de regions reguladores recopilades per nosaltres mateixos de la literatura i desprès, hem provat la utilitat biològica de la nostra aproximació, caracteritzant automàticament de forma exitosa les regions activadores de gens humans conservats en altres espècies.
The sequences are very versatile data structures. In a straightforward manner, a sequence of symbols can store any type of information. Systematic analysis of sequences is a very rich area of algorithmics, with lots of successful applications. The comparison by sequence alignment is a very powerful analysis tool. Dynamic programming is one of the most popular and efficient approaches to align two sequences. However, despite their utility, alignments are not always the best option for characterizing the function of two sequences. Sequences often encode information in different levels of organization (meta-information). In these cases, direct sequence comparison is not able to unveil those higher-order structures that can actually explain the relationship between the sequences.
We have contributed with the work presented here to improve the way in which two sequences can be compared, developing a new family of algorithms that align high level information encoded in biological sequences (meta-alignment). Initially, we have redesigned an existent algorithm, based in dynamic programming, to align two sequences of meta-information, introducing later several improvements for a better performance. Next, we have developed a multiple meta-alignment algorithm, by combining the general algorithm with the progressive schema. In addition, we have studied the properties of the resulting meta-alignments, modifying the algorithm to identify non-collinear or permuted configurations.
Molecular life is a great example of the sequence versatility. Comparative genomics provide the identification of numerous biologically functional elements. The nucleotide sequence of many genes, for example, is relatively well conserved between different species. In contrast, the sequences that regulate the gene expression are shorter and weaker. Thus, the simultaneous activation of a set of genes only can be explained in terms of conservation between configurations of higher-order regulatory elements, that can not be detected at the sequence level. We, therefore, have trained our meta-alignment programs in several datasets of regulatory regions collected from the literature. Then, we have tested the accuracy of our approximation to successfully characterize the promoter regions of human genes and their orthologs in other species.
Fleissner, Roland. "Sequence alignment and phylogenetic inference". Berlin : Logos Verlag, 2004. http://diss.ub.uni-duesseldorf.de/ebib/diss/file?dissid=769.
Texto completoFleissner, Roland. "Sequence alignment and phylogenetic inference". [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=971844704.
Texto completoAuer, Jens. "Metaheuristic Multiple Sequence Alignment Optimisation". Thesis, University of Skövde, School of Humanities and Informatics, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-899.
Texto completoThe ability to tackle NP-hard problems has been greatly extended by the introduction of Metaheuristics (see Blum & Roli (2003)) for a summary of most Metaheuristics, general problem-independent optimisation algorithms extending the hill-climbing local search approach to escape local minima. One of these algorithms is Iterated Local Search (ILS) (Lourenco et al., 2002; Stützle, 1999a, p. 25ff), a recent easy to implement but powerful algorithm with results comparable or superior to other state-of-the-art methods for many combinatorial optimisation problems, among them the Traveling Salesman (TSP) and Quadratic Assignment Problem (QAP). ILS iteratively samples local minima by modifying the current local minimum and restarting
a local search porcedure on this modified solution. This thesis will show how ILS can be implemented for MSA. After that, ILS will be evaluated and compared to other MSA algorithms by BAliBASE (Thomson et al., 1999), a set of manually refined alignments used in most recent publications of algorithms and in at least two MSA algorithm surveys. The runtime-behaviour will be evaluated using runtime-distributions.
The quality of alignments produced by ILS is at least as good as the best algorithms available and significantly superiour to previously published Metaheuristics for MSA, Tabu Search and Genetic Algorithm (SAGA). On the average, ILS performed best in five out of eight test cases, second for one test set and third for the remaining two. A drawback of all iterative methods for MSA is the long runtime needed to produce good alignments. ILS needs considerably less runtime than Tabu Search and SAGA, but can not compete with progressive or consistency based methods, e. g. ClustalW or T-COFFEE.
Arvestad, Lars. "Algorithms for biological sequence alignment". Doctoral thesis, KTH, Numerisk analys och datalogi, NADA, 1999. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-2905.
Texto completoZhang, Liang y Guido Brunnett. "Efficient Dynamic Alignment of Motions". Universitätsbibliothek Chemnitz, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-233521.
Texto completoKulkarni, Dattatraya H. "CDA, computation decomposition and alignment". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0008/NQ27983.pdf.
Texto completoRaum, Christopher Richard. "Fibre optic alignment using micromachines". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq30540.pdf.
Texto completoHolmes, Christopher J. "Surface alignment control of nematodynamics". Thesis, University of Exeter, 2012. http://hdl.handle.net/10036/4009.
Texto completoIshihara, Takeshi. "Tonal alignment in Tokyo Japanese". Thesis, University of Edinburgh, 2006. http://hdl.handle.net/1842/1469.
Texto completoHo, Ngai-lam y 何毅林. "Algorithms on constrained sequence alignment". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B30201949.
Texto completoSiu, Wing-yan y 蕭穎欣. "Multiple structural alignment for proteins". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B4068748X.
Texto completoHo, Wai-cheong y 何偉昌. "Business and information technology alignment". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31268833.
Texto completoKrishnamurthy, Sundar Rajan. "Interference Alignment| Beyond Generic Channels". Thesis, University of California, Irvine, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3646739.
Texto completoCapacity characterization of communication networks is the most fundamental problem in Information Theory, that underlies the design of various wireless and wired networks. The radical idea of "Interference alignment" has enabled Capacity or Degrees of Freedom characterization (DoF, a first order approximation) for many interference networks. Various alignment schemes developed have provided new and fundamental insights into the number of accessible signal dimensions in communication networks where the output signals are linear functions of the input signals. Most of the prior art deal with generic channels wherein the channel coefficients are assumed to be independent and drawn from a continuous distribution, continuous alphabet with infinite diversity, and the network is often single-hop. These assumptions are challenged due to the following reasons: 1) In MIMO systems, poor scattering environment and network topology lead to spatial dependencies that are manifested as rank deficient channels, 2) Multi-hop dependencies arise due to the presence of relays, and 3) Linear network coding applications (as in wired networks) act as finite field counterparts of wireless networks, with limited diversity.
In this thesis, Capacity / DoF of linear communication networks are characterized for "Non-generic channels". One of the significant problems considered is the DoF of the K-user MIMO rank deficient interference channel, with different ranks for the direct and the cross channels. For this rank deficient interference channel, it is shown that the rank deficiency of direct channels does not help DoF and the rank-deficiency of cross-channels does not hurt DoF. The main challenge is to account for the spatial dependencies introduced by rank deficiencies in the interference alignment schemes that typically rely on the independence of channel coefficients. Another interesting problem is the DoF of Two-hop MIMO rank deficient interference channel with different channel ranks in the first and the second hops, for which a rank-matching principle is identified reminiscent of impedance matching in circuit theory. For this channel, the DoF loss is shown to be the rank-mismatch between the two hops. Finally, capacity results for the finite field counterparts of wireless networks are presented, exploring the implications of channels being from a finite alphabet with limited diversity. By characterizing the capacity of constant finite field channels over Fpn for 2-user X channel and 3-user interference channel, interesting parallels are drawn between p and SNR, and n and Channel Diversity.
Hallam, Benjamin Thomas. "Grating alignment of liquid crystals". Thesis, University of Exeter, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312444.
Texto completoWeber, Alexis Christian 1974. "Precision passive alignment of wafers". Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/89364.
Texto completoKhohayting, Jerome S. (Jerome Suntay). "Automatic orthographic alignment of speech". Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/36447.
Texto completoIncludes bibliographical references (leaves 86-87).
by Jerome S. Khohayting.
M.Eng.
Fay, Matthew Paul. "Enabling imagination through story alignment". Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/71281.
Texto completoThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student submitted PDF version of thesis.
Includes bibliographical references (p. 81-82).
Stories are an essential piece of human intelligence. They exist in countless forms and varieties seamlessly integrated into every facet of our lives. Stories fuel human understanding and our explanations of the world. Narrative acts as a Swiss army knife, simultaneously facilitating the transfer of knowledge, culture and beliefs while also powering our high level mental faculties. If we are to develop artificial intelligence with the cognitive capacities of humans, our systems must not only be able to understand stories but also to incorporate them into the thought process as humans do. In order to work towards the goal of computational story understanding, I developed a novel story comparison method. The techniques I present in this thesis enable efficient and effective story comparison through story alignment. My algorithms, implemented into the Genesis system, allow the comparison and combination of stories which is a step towards enabling imagination in artificial intelligence. This capability is made possible by reducing the runtime of a previously intractable computational problem to polynomial time. In the course of this research, these algorithms have been applied to a variety of story analysis problems. By comparing short, 10 sentence summaries of the Tet Offensive and the Yom Kippur War, the system predicts information omitted from both stories. In the analysis of a brief synopsis of Shakespeare's Macbeth, my algorithm is able to correctly match actors and events between two different variations of the tale by cutting down a search space of over 10³⁰ nodes to a mere 546 nodes. My techniques also demonstrate promise as a component of a larger video analysis system. The story alignment capabilities are used to fill in missing gaps in descriptions of videos, corresponding to missing video data, by comparing video feeds to an existing video corpus.
by Matthew Paul Fay.
S.M.
Green-Petersen, Minna. "Mitochondrial alignment in ATP gradients". Thesis, KTH, Tillämpad fysik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-189551.
Texto completoLiu, Zhonghao. "Interference Alignment through Propagation Delay". Thesis, University of North Texas, 2020. https://digital.library.unt.edu/ark:/67531/metadc1703337/.
Texto completoKorhonen, Daniel. "Wheel alignment method feasibility study". Thesis, KTH, Fordonsdynamik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280555.
Texto completoInom fordonstekniken har däcken alltid betraktats som en av fordonets viktigastekomponenter på grund av deras interaktion med vägen. En viktig aspektär hjulinställning, med syftet att justera de statiska hjulvinklarna som är viktigaav många anledningar, som exempelvis säkerhet och bränsleförbrukning.Trots flera metoder för mätning av hjulvinklar verkar det inte finnas någonbefintlig teknisk lösning baserad på datorseende, som är lämplig för privat brukbåde gällande kostnad och storlek på utrustningen. Syftet med studien är attundersöka genomförbarheten för ett sådant system.Det föreslagna systemet är baserat på plana ArUco-markörer. Från bildereller bildrutor i en video av markören kan dess läge uppskattas. Genom attplacera sådana markörer på marken, på hjulet och på fordonet, kan såledesmarkörernas uppskattade lägen användas för att mäta och beräkna hjulvinklarna.Endast toe- och cambervinklar mäts inom ramen för detta examensarbete, ävenom systemet också kan mäta andra hjulvinklar.Efter kamerakalibrering utfördes enkla ArUco-markörtester genom att mätaden kända förskjutningen och vinkeln av en markör i förhållande till en referensmarkör.De genomsnittliga absoluta felen var 030400 och 0:024mm förvinkeln respektive förskjutningen. Vidare mättes toe- och cambervinklar påett fordon och jämfördes med referensmätningar utförda med ett kommersiellthjulinställningssystem. De genomsnittliga absoluta felen var 0520 och 0280för camber- respektive toevinkeln. Trots de relativt stora felen i mätningarnaav toe- och cambervinklar visar resultaten från de första testerna systemetspotential. Dessutom kan flera felkällor och förslag till förbättringar identifieras.Som en slutsats kan det föreslagna systemet betraktas som en fungerandeförsta prototyp, som efter förbättring och optimering har potential att bli ettmöjligt alternativ, särskilt för hemmabruk och för mobila verkstäder på grundav låga kostnader, systemets ringa storlek och användbarhet.