Journal articles: 'Computer aided text analysis'

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Castelfranchi, Yuri. "Computer-aided text analysis: an open-aired laboratory for social sciences." Journal of Science Communication 16, no. 02 (June 21, 2017): C04. http://dx.doi.org/10.22323/2.16020304.

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Thanks, on the one hand, to the extraordinary availability of colossal textual archives and, on the other hand, to advances in computational possibilities, today the social scientist has at their disposal an extraordinary laboratory, made of millions of interacting subjects and billions of texts. An unprecedented, yet challenging, opportunity for science. How to test, corroborate models? How to control, interpret and validate Big Data? What is the role of theory in the universe of patterns and statistical correlations? In this article, we will show some general characteristics of the use of computational tools for the analysis of texts, and some applications in the areas of public communication of S&T and Science and Technology Studies (STS), also showing some of their limitations and pitfalls.

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Short, Jeremy C., J. Christian Broberg, Claudia C. Cogliser, and Keith H. Brigham. "Construct Validation Using Computer-Aided Text Analysis (CATA)." Organizational Research Methods 13, no. 2 (May 5, 2009): 320–47. http://dx.doi.org/10.1177/1094428109335949.

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McKenny, Aaron F., Jeremy C. Short, and G. Tyge Payne. "Using Computer-Aided Text Analysis to Elevate Constructs." Organizational Research Methods 16, no. 1 (September 28, 2012): 152–84. http://dx.doi.org/10.1177/1094428112459910.

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Kabanoff, Boris. "Computers can read as well as count: computer-aided text analysis in organizational research." Journal of Organizational Behavior 18, S1 (November 1997): 507–11. http://dx.doi.org/10.1002/(sici)1099-1379(199711)18:1+<507::aid-job904>3.0.co;2-0.

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Kabanoff, Boris. "Computers can read as well as count: computer‐aided text analysis in organizational research." Journal of Organizational Behavior 18, S1 (November 1997): 507–11. http://dx.doi.org/10.1002/(sici)1099-1379(199711)18:1+<507::aid-job904>3.3.co;2-s.

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Anglin, Aaron, Thomas H. Allison, Aaron Francis McKenny, and Lowell W. Busenitz. "The Application of Computer-Aided Text Analysis in Social Entrepreneurship Research." Academy of Management Proceedings 2014, no. 1 (January 2014): 10117. http://dx.doi.org/10.5465/ambpp.2014.10117abstract.

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Helmuth, Catherine A., Achilles A. Armenakis, and Sebastien Vendette. "Combining Manual Content Analysis with Computer-aided Text Analysis in an Organizational Diagnosis." Academy of Management Proceedings 2014, no. 1 (January 2014): 14471. http://dx.doi.org/10.5465/ambpp.2014.14471abstract.

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Noel, Terry, and Laura Erskine. "The Silent Story: Using Computer-Aided Text Analysis to Predict Entrepreneurial Performance." Journal of Entrepreneurship 22, no. 1 (February 27, 2013): 1–14. http://dx.doi.org/10.1177/0971355712469163.

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Belderbos, Rene, Marcelina Grabowska, Bart Leten, Stijn Kelchtermans, and Nazlihan Ugur. "On the Use of Computer-Aided Text Analysis in International Business Research." Global Strategy Journal 7, no. 3 (July 11, 2017): 312–31. http://dx.doi.org/10.1002/gsj.1162.

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Buchacz, Andrzej, and Andrzej Wróbel. "Computer-Aided Analysis of Piezoelectric Plates." Solid State Phenomena 164 (June 2010): 239–42. http://dx.doi.org/10.4028/www.scientific.net/ssp.164.239.

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Present paper is a continuation of author’s earlier publications on stacking of piezoelectric plates. Analysis effects are presented by schemes received on the basis of computer calculations. The program is used for creation and analysis of graphical characteristics of piezoelectric plates. The application allows generation of graphs for a single piezoelectric plate as well as for complex systems. An additional advantage is the ability to obtain the 3D graphs, in which the test graph characterizes the plate not only in terms of frequency but can also include other parameters such as the thickness of the plate. The application is written in numerical software "Matlab" in such a way that it is possible to run a program on any computer without the installed software. A necessary condition for the correct operation of the program is availability of “MCR Matlab Compiler Runtime” free library.

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Pollach, Irene. "The Potential of Computer-Aided Text Analysis for Longitudinal Studies of Sustainability Reports." Academy of Management Proceedings 2016, no. 1 (January 2016): 14178. http://dx.doi.org/10.5465/ambpp.2016.14178abstract.

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Matthies, Benjamin, and André Coners. "Computer-Aided Text Analysis of Corporate Disclosures - Demonstration and Evaluation of Two Approaches." International Journal of Digital Accounting Research 15 (2015): 69–98. http://dx.doi.org/10.4192/1577-8517-v15_3.

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Pollach, Irene. "Taming Textual Data: The Contribution of Corpus Linguistics to Computer-Aided Text Analysis." Organizational Research Methods 15, no. 2 (August 15, 2011): 263–87. http://dx.doi.org/10.1177/1094428111417451.

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Short, Jeremy C., Aaron F. McKenny, and Shane W. Reid. "More Than Words? Computer-Aided Text Analysis in Organizational Behavior and Psychology Research." Annual Review of Organizational Psychology and Organizational Behavior 5, no. 1 (January 21, 2018): 415–35. http://dx.doi.org/10.1146/annurev-orgpsych-032117-104622.

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Lee, Linda W., Amir Dabirian, Ian P. McCarthy, and Jan Kietzmann. "Making sense of text: artificial intelligence-enabled content analysis." European Journal of Marketing 54, no. 3 (February 24, 2020): 615–44. http://dx.doi.org/10.1108/ejm-02-2019-0219.

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Purpose The purpose of this paper is to introduce, apply and compare how artificial intelligence (AI), and specifically the IBM Watson system, can be used for content analysis in marketing research relative to manual and computer-aided (non-AI) approaches to content analysis. Design/methodology/approach To illustrate the use of AI-enabled content analysis, this paper examines the text of leadership speeches, content related to organizational brand. The process and results of using AI are compared to manual and computer-aided approaches by using three performance factors for content analysis: reliability, validity and efficiency. Findings Relative to manual and computer-aided approaches, AI-enabled content analysis provides clear advantages with high reliability, high validity and moderate efficiency. Research limitations/implications This paper offers three contributions. First, it highlights the continued importance of the content analysis research method, particularly with the explosive growth of natural language-based user-generated content. Second, it provides a road map of how to use AI-enabled content analysis. Third, it applies and compares AI-enabled content analysis to manual and computer-aided, using leadership speeches. Practical implications For each of the three approaches, nine steps are outlined and described to allow for replicability of this study. The advantages and disadvantages of using AI for content analysis are discussed. Together these are intended to motivate and guide researchers to apply and develop AI-enabled content analysis for research in marketing and other disciplines. Originality/value To the best of the authors’ knowledge, this paper is among the first to introduce, apply and compare how AI can be used for content analysis.

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Aarts, Sil, Coen Hacking, Hilde Verbeek, Jan Hamers, and Katya Sion. "Text-Mining in Long-Term Care: Exploring the Usefulness of Computer-Aided Analyzing Methods." Innovation in Aging 5, Supplement_1 (December 1, 2021): 515. http://dx.doi.org/10.1093/geroni/igab046.1993.

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Abstract In nursing homes, narrative data are collected to evaluate quality of care as perceived by residents or their family members. This results in a large amount of textual data which exceeds the capability of humans to analyse it. This study aims to explore the usefulness of text-mining approaches regarding narrative data gathered in a nursing home setting. Data has been collected as part of the project ‘Connecting Conversations’: assessing experienced quality of care by conducting individual interviews (n=125) with residents of nursing homes, family members and care professionals. Several pre-processing steps were applied to the textual data. Finally, a variety of text-mining analyses were conducted: individual and bigram word frequencies, correlation analysis and sentiment analysis. A survey was conducted to establish a sentiment analysis model tailored to text collected in long-term care for older adults. Residents, family members and care professionals uttered respectively 285, 362 and 549 words per interview. Word frequency analysis showed that words that occurred most frequently in the interviews are often positive. Although there are some differences in wording such as the use of ‘mother’ and ‘breakfast’, correlation analysis displayed that similar words are used by all three groups to describe quality of care. The majority of interviews displayed a neutral sentiment. Care professionals are more diverse in their sentiment than residents and family members: while some express a more positive sentiment, others express more negativity. This study demonstrates the usefulness of text-mining to extend our knowledge regarding quality of care in a nursing home setting.

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McKenny, Aaron F., Herman Aguinis, Jeremy C. Short, and Aaron H. Anglin. "What Doesn’t Get Measured Does Exist: Improving the Accuracy of Computer-Aided Text Analysis." Journal of Management 44, no. 7 (July 14, 2016): 2909–33. http://dx.doi.org/10.1177/0149206316657594.

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Computer-aided text analysis (CATA) is a form of content analysis that enables the measurement of constructs by processing text into quantitative data based on the frequency of words. CATA has been proposed as a useful measurement approach with the potential to lead to important theoretical advancements. Ironically, while CATA has been offered to overcome some of the known deficiencies in existing measurement approaches, we have lagged behind in regard to assessing the technique’s measurement rigor. Our article addresses this knowledge gap and describes important implications for past as well as future research using CATA. First, we describe three sources of measurement error variance that are particularly relevant to studies using CATA: transient error, specific factor error, and algorithm error. Second, we describe and demonstrate how to calculate measurement error variance with the entrepreneurial orientation, market orientation, and organizational ambidexterity constructs, offering evidence that past substantive conclusions have been underestimated. Third, we offer best-practice recommendations and demonstrate how to reduce measurement error variance by refining existing CATA measures. In short, we demonstrate that although measurement error variance in CATA has not been measured thus far, it does exist and it affects substantive conclusions. Consequently, our article has implications for theory and practice, as well as how to assess and minimize measurement error in future CATA research with the goal of improving the accuracy of substantive conclusions.

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Muaad, Abdullah Y., Hanumanthappa Jayappa, Mugahed A. Al-antari, and Sungyoung Lee. "ArCAR: A Novel Deep Learning Computer-Aided Recognition for Character-Level Arabic Text Representation and Recognition." Algorithms 14, no. 7 (July 16, 2021): 216. http://dx.doi.org/10.3390/a14070216.

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Arabic text classification is a process to simultaneously categorize the different contextual Arabic contents into a proper category. In this paper, a novel deep learning Arabic text computer-aided recognition (ArCAR) is proposed to represent and recognize Arabic text at the character level. The input Arabic text is quantized in the form of 1D vectors for each Arabic character to represent a 2D array for the ArCAR system. The ArCAR system is validated over 5-fold cross-validation tests for two applications: Arabic text document classification and Arabic sentiment analysis. For document classification, the ArCAR system achieves the best performance using the Alarabiya-balance dataset in terms of overall accuracy, recall, precision, and F1-score by 97.76%, 94.08%, 94.16%, and 94.09%, respectively. Meanwhile, the ArCAR performs well for Arabic sentiment analysis, achieving the best performance using the hotel Arabic reviews dataset (HARD) balance dataset in terms of overall accuracy and F1-score by 93.58% and 93.23%, respectively. The proposed ArCAR seems to provide a practical solution for accurate Arabic text representation, understanding, and classification.

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Wu, Zheng, Yang Lee, and Chong Lee. "Introduction of Computer Aided Test Analysis Program for Civil Engineering." Journal of Building Technology 2, no. 1 (June 24, 2020): 6. http://dx.doi.org/10.32629/jbt.v2i1.106.

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The Computer Aided Test Analysis for Civil Engineering (CATACE) is made based on International standards, regulations and specifications. It includes test analysis for aggregates, bitumen, soil, asphalt concrete and its mixtures. It includes the technical requirements for nuclear gauge, selection parameter for surface dressing, blending for prime coat and tack coat. It provides the unit conversion between American to international system. It provided over 40 kinds of test analysis, and it will be increase working efficiency for the Material Testing Engineer who is working oversea project and follows International Standards. The paper introduces the functions and application of the program.

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Aydın, Ali. "Computer Aided Analysis of Multiple Choice Test Results Ertuğrul ERGÜN,." Participatory Educational Research spi15, no. 2 (November 15, 2015): 110–16. http://dx.doi.org/10.17275/per.15.spi.2.13.

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Oun Lee, Dong. "Structure Earthquake Analysis Program using Computer-Aided IT Sensor." Tehnički glasnik 17, no. 1 (February 2, 2023): 127–33. http://dx.doi.org/10.31803/tg-20221219154908.

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The purpose of this study is to develop a complex test and analysis technique to improve the reliability of seismic performance evaluation of buildings, and to establish a seismic performance evaluation system using shear damper as an earthquake preparation technology. In this study, validated examples of viscoelasticity provided by OpenSees were selected for verification of hybrid experimental results data and compared with hybrid experimental techniques. By applying the analysis program and the developed Labplugin, the hybrid experimental system built through the connection between the equipment was verified. As a result, the behavior of the cyclic loading test showed the general behavior of the damper, but in the hybrid test, the behavior of the damper with respect to the ground acceleration and the decrease in stiffness caused by fracture were found. From the above comparison experiment, it can be seen that the hybrid technique developed in this study shows excellent seismic behavior compared to the cyclic loading experiment, dynamic experiment, and analytical technique. With the system built in this study, it is judged that it is possible to design a structure damper in the future. In addition hybrid experimental system will help to conduct more economical and reliable research on seismic control by applying partial experimental data to structures with nonlinear behavior in the future.

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Xie, Wenwen, and Xiaolu Wang. "Building a Parallel Corpus for English Translation Teaching Based on Computer-Aided Translation Software." Computer-Aided Design and Applications 18, S3 (October 20, 2020): 12–22. http://dx.doi.org/10.14733/cadaps.2021.s3.12-22.

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This paper conducts an in-depth study on the construction of parallel corpus for English translation teaching through computer-aided translation software, and this study adopts a combination of corpus statistics and analysis to portray and study the system. In the corpus statistics, we carried out a detailed data analysis of the translated text and the original text with the help of corpus statistics software to find out the linguistic characteristics of the translated text and the areas that can be improved from the perspective of data statistics. After that, based on frequency, mean value, grading value, and multiplication analysis, we carry out qualitative analysis to study the movie subtitle translation strategy and its causes from multiple perspectives. This thesis aims to make research on film and television translation from a new angle with the help of corpus translation and to make up for the gap in the research direction of film and television translation. Firstly, through the corpus analysis methods such as frequency value, mean value, graded value and multiplier value, a quantitative analysis of film texts is carried out from three levels, namely, high frequency, medium frequency and basic, and it is found that Chinese films have many distinctive characteristics in terms of long words and sentences, words and sentences, beginning and end of sentences, idioms and the use of four-character words.

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Opoku, R. A., L. F. Pitt, and R. Abratt. "Positioning in cyberspace: Evaluating bestselling authors’ online communicated brand personalities using computer-aided content analysis." South African Journal of Business Management 38, no. 4 (December 31, 2007): 21–32. http://dx.doi.org/10.4102/sajbm.v38i4.591.

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This study employs a computer-aided text analysis technique to explore whether bestselling authors communicate Aaker’s brand personality in the online environment. We argue that content analysis facilitated by a computer is relatively reliable and less tedious than that performed by human coders. We analyse the content of websites on the presumption that this reflects what the author wants to say about him/herself. The study offers a new technique for content analysts and marketing communicators to quantify various aspects of marketing communications and goes a little further towards the evaluation and mapping of websites using correspondence analysis.

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Kchaou, Dhikra, Nadia Bouassida, and Hanêne Ben-Abdallah. "UML models change impact analysis using a text similarity technique." IET Software 11, no. 1 (February 2017): 27–37. http://dx.doi.org/10.1049/iet-sen.2015.0113.

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Scheipers, Ulrich, Christian Perrey, Stefan Siebers, Christian Hansen, and Helmut Ermert. "A Tutorial on the Use of ROC Analysis for Computer-Aided Diagnostic Systems." Ultrasonic Imaging 27, no. 3 (July 2005): 181–98. http://dx.doi.org/10.1177/016173460502700304.

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The application of the receiver operating characteristic (ROC) curve for computer-aided diagnostic systems is reviewed. A statistical framework is presented and different methods of evaluating the classification performance of computer-aided diagnostic systems, and, in particular, systems for ultrasonic tissue characterization, are derived. Most classifiers that are used today are dependent on a separation threshold, which can be chosen freely in many cases. The separation threshold separates the range of output values of the classification system into different target groups, thus conducting the actual classification process. In the first part of this paper, threshold specific performance measures, e.g., sensitivity and specificity; are presented. In the second part, a threshold-independent performance measure, the area under the ROC curve, is reviewed. Only the use of separation threshold-independent performance measures provides classification results that are overall representative for computer-aided diagnostic systems. The following text was motivated by the lack of a complete and definite discussion of the underlying subject in available textbooks, references and publications. Most manuscripts published so far address the theme of performance evaluation using ROC analysis in a manner too general to be practical for everyday use in the development of computer-aided diagnostic systems. Nowadays, the user of computer-aided diagnostic systems typically handles huge amounts of numerical data, not always distributed normally. Many assumptions made in more or less theoretical works on ROC analysis are no longer valid for real-life data. The paper aims at closing the gap between theoretical works and real-life data. The review provides the interested scientist with information needed to conduct ROC analysis and to integrate algorithms performing ROC analysis into classification systems while understanding the basic principles of classification.

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Munusamy, SM, AU Yap, HL Ching, and NA Yahya. "Degradation of Computer-aided Design/Computer-aided Manufacturing Composites by Dietary Solvents: An Optical Three-dimensional Surface Analysis." Operative Dentistry 45, no. 4 (February 6, 2020): E176—E184. http://dx.doi.org/10.2341/19-070-l.

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Clinical Relevance Computer-aided design/computer-aided manufacturing (CAD/CAM) composite resins are susceptible to degradation by dietary solvents. Dietary counselling is prudent when placing such CAD/CAM restorations. SUMMARY This study determined the effect of dietary solvents on the surface roughness (Ra) of direct, indirect, and computer-aided design/computer-aided manufacturing (CAD/CAM) dental composites. The materials evaluated were a direct composite (Filtek Z350 XT [FZ]), an indirect composite (Shofu Ceramage [CM]), and four CAD/CAM composites (Lava Ultimate [LU], Shofu Block HC [HC], Cerasmart [CS], and Vita Enamic [VE]). Specimens (12×14×1.5 mm) of each material were prepared, measured for baseline Ra, ranked, divided into six groups (n=12), and conditioned in the following media for 1 week at 37°C: air (control), distilled water, 0.02 N citric acid, 0.02 N lactic acid, heptane, and 50% ethanol-water solution. The composite specimens were then subjected to postconditioning Ra testing using an optical three-dimensional surface analyzer (G4e, Alicona Imaging GmbH, Raaba, Austria). Inter-medium and inter-material comparisons were performed with one-way analysis of variance and post hoc Bonferroni test at a significance level of α=0.05. Mean Ra values ranged from 0.086 ± 0.004 μm to 0.153 ± 0.005 μm for the various material/medium combinations. For all materials, conditioning in air (control) and distilled water generally resulted in significantly lower mean Ra than exposure to other dietary solvents. Conditioning in citric acid presented the roughest surfaces for FZ, CM, and CS. For LU, HC, and VE, exposure to lactic acid, heptane, and ethanol solution resulted in the highest mean Ra. Regardless of conditioning media, FZ had the highest and VE the lowest mean Ra compared with other composites. The CAD/CAM composites remained susceptible to surface degradation by dietary solvents despite their industrial polymerization.

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Lewandowski, Tomasz, and Anna Lewandowska. "Computer-aided processing of the oculomotor signal." ITM Web of Conferences 21 (2018): 00025. http://dx.doi.org/10.1051/itmconf/20182100025.

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Specific features of oculomotor signal and availability of high-end measurement equipment, as well as using modern IT techniques and tools creates the possibility of automatic processing of this type of data and extensive use of developed algorithms. Analysis of such data is a tedious and complex process so computer processing of the oculomotor signal makes the process less time-consuming, more precise and effective. The article discusses data filtering and removing noise, detection of saccades and fixations and determination of characteristic oculomotor parameters and then analysis using neural networks (unidirectional, two-layer neural network with backpropagation learning method and Kohonen’s self-organising network) and application supporting the analysis process. The proposed test method allows registration of a view path followed by its automatic analysis to obtain objective parameters characterising the movement of the eyeball. The motor apparatus of the eyeball, due to its high sensitivity to changes in the body, can serve as a measure of general health.

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Zou, Xiao Wei, Xiao Li Wang, and Yan Wang. "Analysis of Reliability and Validity in Computer Assisted English Teaching Test." Advanced Materials Research 989-994 (July 2014): 5029–32. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.5029.

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With the rapid development of computer technology, the computer has rapidly entered our daily life. People begin to use the computer for scientific research, production, entertainment, and information consulting and other activities widely, which brings about the Computer Aided Designing, Computer Aided Manufacturing, Computer Aided Instruction in order to improve the efficiency and quality of life. Using computer technology in language testing has become the trend of language testing both at home and abroad. Communicative language teaching becomes the guiding ideology and theoretical basis of modern language testing. The reliability and validity in computerized language assessments have become the two important criteria of evaluation of test quality. Computer Assisted English test with its unique advantages has opened up a new heaven and earth for English test.

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Savrasov, I. A. "TEST SAMPLES FOR COMPUTER-AIDED TEST SYSTEM: CHEMICAL ANALYSIS, MEASUREMENT TOOLS AND MATERIALS." Bulletin of the Tver State Technical University Series «Building Electrical engineering and chemical technology», no. 1 (2021): 86–90. http://dx.doi.org/10.46573/2658-7459-2021-1-86-90.

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Dabolins, Janis. "TEACHING OF COMPUTER AIDED DESIGN SYSTEMS." SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 5 (May 25, 2018): 248–59. http://dx.doi.org/10.17770/sie2018vol1.3143.

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The objective of this paper is to analyze and describe computer-aided design training and its aspects. A traditional and technology-supported learning process is described with the purpose of analyzing computer-aided design training and provision of knowledge assessment, and identifying problems in the CAD system training. The article analyzes the learning process by defining its objectives, the necessity of student characterization, motivation analysis, the necessity of feedback and other basic components; it analyzes the training methods, provides insight into technology-supported learning process, identifies the provision and types of computer-aided design training and knowledge assessment as well as describes feedback and its role in the training process.Elaboration of an intellectual learning system would solve the problems associated with lack of feedback, lack of adaptivity and the emergence of plagiarism (since only the end result of the design is subjected to the test and not the whole process of creating it, it is easy to pass another’s work for one’s own). A solution to these problems would facilitate the work of the teacher and improve student learning outcomes.

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Abdul Hamid, Nor Faharina, Wan Zaripah Wan Bakar, and Zaihan Ariffin. "Marginal Gap Evaluation of Metal Onlays and Resin Nanoceramic Computer-Aided Design and Computer-Aided Manufacturing Blocks Onlays." European Journal of Dentistry 13, no. 01 (February 2019): 017–21. http://dx.doi.org/10.1055/s-0039-1688740.

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Abstract Objective This study was carried out to assess and compare the marginal gap of conventionally used metal onlays and new resin nanoceramic (RNC) (Lava Ultimate block) onlays. Materials and Methods This is an in vitro study using two extracted sound human mandibular molars. One tooth was prepared to receive the metal onlays and another one for the RNC onlays which were fabricated using the computer-aided design and computer-aided manufacturing (CAD/CAM) technology. Twelve metals and 12 ceramic onlays were fabricated before they were placed at their respective preparation and examined under the Leica stereomicroscope, M125C (Leica Microsystems, Wetzlar, Germany) for a marginal analysis. The gap width was measured at 10 predefined landmarks which included 3 points on the buccal and lingual surfaces each and 2 points each on the mesial and distal surfaces, respectively. Statistical Analysis Mann–Whitney post hoc test was used for statistical analysis (P ≤ 0.05). Results Overall, the RNC onlays showed significant lower marginal gap with the exception of the landmarks 5 and 6 (on distolingual) and no significant difference at landmark 7 (on midlingual). It was observed that the marginal gap were all within the clinically acceptable limit of 120 μm. Conclusions Based on the results obtained, it can be concluded that the RNC CAD/CAM onlays are a promising alternative to the metal onlays.

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Zhang, Yi, Yudong Shao, and Jiawan Zhang. "Visual Analysis of Topic Transition among Different Sources of Text Corpora." Journal of Computer-Aided Design & Computer Graphics 29, no. 12 (2017): 2265. http://dx.doi.org/10.3724/sp.j.1089.2017.16634.

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Kouskos, E., C. Markopoulos, K. Revenas, K. Koufopoulos, V. Kyriakou, and J. Gogas. "Computer-aided preoperative diagnosis of microcalcifications on mammograms." Acta Radiologica 44, no. 1 (January 2003): 43–46. http://dx.doi.org/10.1258/rsmacta.44.1.43.

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Purpose: To evaluate of a computer-aided method for differentiating malignant from benign clustered microcalcifications. Material and Methods: Our material was 350 suspicious microcalcifications on mammograms from 330 female patients who underwent breast biopsy (after hook wire localization and under mammographic guidance). The histologic findings were malignant in 140 cases (40%) and benign in 210 cases (60%). Those clusters were manually detected, computer-aided analyzed and quantitatively estimated. Besides computer analysis, 3 physicians-observers (2 radiologists and 1 breast surgeon) evaluated the malignant or benign nature of the clustered microcalcifications. The performance of the artificial network, each observer and the three observers as a group was evaluated by receiver operating characteristics (ROC) curves. Results: Comparison of the ROC curves revealed the following AUC values (area under the curve): computer – 0.950, physician 1 – 0.815, physician 2 – 0.830, physician 3 – 0.830, and physicians as a group – 0.825. The results, compared by the student t-test for paired data, showed a statistically significant difference between computer analysis and physicians' performance, independently and as a group. Conclusion: Our study showed that computer analysis achieved statistically significantly better performance than that of physicians in the classification of malignant and benign calcifications.

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Witte, R., Q. Li, Y. Zhang, and J. Rilling. "Text mining and software engineering: an integrated source code and document analysis approach." IET Software 2, no. 1 (2008): 3. http://dx.doi.org/10.1049/iet-sen:20070110.

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Varvara, Mihai, Rares Stiufiuc, Valentin Toma, Carina Culic, Doina Prodan, Meda Simu, Cristina Gasparik, et al. "Development of a New Fiberglass Reinforced Composite for Computer Aided Design - Computer Aided Manufacturing Applications in Dentistry." Materiale Plastice 56, no. 3 (September 30, 2019): 600–604. http://dx.doi.org/10.37358/mp.19.3.5237.

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The aim of this work was the development of a series of glass fiber reinforced composites (FRCs) for CAD/CAM applications in dentistry and the characterization of their structure by SEM, Raman and FTIR spectroscopy. A selection of 2 different types of resins (R1 composed from 25%Bis-GMA, 40%UEDMA, 35% DMTEG and R2 composed from 65%Bis-GMA, 35% DMTEG) with 2 different types of hybrid filler (F1 with 42% quartz, 42% radiopaque glass and 16 % hydroxyapatite and F2 with 90% quartz and 10% colloidal silica) and 3 different types of E type fiber glass geometries (veil 30g/m2, twill 163g/m2 and textile 300g/m2) in 4, 6, 8 and 10 layers were used in this in vitro study. Raman analysis, showed a powerful interaction between the polymer and the fiber glass. FTIR and SEM data revealed that the different fiber glass geometries were well incorporated inside the resin, resulting an acceptable homogeneity. Within the limitation of this study, it is possible to achieve a fiber glass reinforced composite for the use of CAD/CAM technology. Further investigation must be done in order to test all the properties of the new material.

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Liu, Xiaohua, Ligang Luo, Haiying Yang, Xiaoxiang Jie, Peiyu Li, Ding Ma, Yue Kang, et al. "Computer-aided classification of lung nodules on CT scans via 3D CNNs." Journal of Clinical Oncology 37, no. 15_suppl (May 20, 2019): e18047-e18047. http://dx.doi.org/10.1200/jco.2019.37.15_suppl.e18047.

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e18047 Background: Computer-aided diagnosis based on deep learning methodologies has demonstrated great potential to assist disease diagnosis with accuracy and efficiency. Specifically, the quantitative and qualitative analysis on lung nodules has proven to be important for the early-detection of lung cancer as well as its treatment in clinical practice. This study developed a 3D CNN model to facilitate the classification of pulmonary nodules. Methods: We collected 3956 lung CT scans (slice thickness≤3mm) with multiple lung nodules from 15 Class-A hospitals in China, 1155 lung CTs from Luna 16 dataset and Data Science Bowl 2017. There were 30 senior radiologists responsible for annotation and each CT scan was annotated by two of them randomly. Another 4 senior associate chief physicians were divided into two groups, each group was responsible for arbitration when conflicts occurred between the annotation doctors. All the annotated CTs were randomly selected and split to construct training, validation and test sets. We pre-processed the CTs and utilized 3D CNNs to classify these nodules as solid, partial-solid, ground glass opacity, calcified, pleural solid and pleural calcified. ROC analysis was used, and the classification capability was assessed by classification accuracy and the AUC score. Results: Table shows the overall results. The proposed model yielded an AUC score of 0.97 for the ground glass opacity and 0.90 for calcified nodules in the training set, while the AUC of them were 0.93 and 0.93 respectively in the validation set. For the test set, we got an AUC score of 0.94 for the ground glass opacity. The average classification time for each nodule was less than 0.005 sec. Conclusions: Our model may assist clinical diagnosis of lung cancer and increase its objectivity and accuracy, and the fast processing speed proves its feasibility to be applied in real clinical practice. In the future, we will enrich the dataset with clinical and genetic information, thus improving our model to boost its performance. [Table: see text]

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Chou, Clifford C., Jerry Jialiang Le, and Jamel E. Belwafa. "Analysis of crash test and computer aided engineering pulses for airbag sensor development." International Journal of Vehicle Safety 3, no. 3 (2008): 209. http://dx.doi.org/10.1504/ijvs.2008.024710.

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Kosim, Kosim. "Application Ability of Students in Integrated Computer-Aided Numerical Analysis Learning." Journal of Mathematics Instruction, Social Research and Opinion 1, no. 1 (July 21, 2022): 54–62. http://dx.doi.org/10.58421/misro.v1i1.11.

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The low ability of students to apply in numerical analysis courses is a problem in this research. Integrated learning is one solution to this problem. The aim is to determine the differences in student application abilities between integrated and conventional learning. One of the computer science colleges in the Cirebon area was sampled in this study. Two groups were formed, consisting of 1 integrated study group with a total of 36 students and one conventional study group with a total of 32 students. Both groups contracted numerical analysis courses. What carried out the type of quasi-experimental research and the static group comparison randomized control group only design became the design in this study. The result is that the average value of the application ability of students who study conventionally is 80.31, while the average application ability of students who study in an integrated manner is 84.58. The application ability of students who study integrated is higher than students who study conventionally, and the ability to apply of students who study integrated is more uniform than students who study conventionally. The results of the Mann-Whitney test found that the application ability of students who studied in an integrated manner was better than those who studied conventionally.

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Mourad, Samiha. "Computer-Aided Testing Systems: Evaluation and Benchmark Circuits." VLSI Design 1, no. 1 (January 1, 1993): 87–97. http://dx.doi.org/10.1155/1993/89495.

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As the demand on Computer-Aided Testing Systems (CATS)—Automatic Test Pattern Generation (ATPG) and logic and fault simulations as well as testability analysis—increases and the choice becomes more varied, a need to compare the merits of the different systems emerges. Benchmark circuits are used to carry out the comparisons.In this paper, criteria for selecting the benchmark circuits are discussed. These criteria are partly based on the results of experiments carried out to characterize CATS. The focus is particularly on Automatic Test Pattern Generators. The preliminary results show that there is no general agreement on how: 1) fault collapsing is performed, and 2) fault coverage is calculated. In addition, the performance of the ATPGs depends on the circuit representation, topology and size as well as the algorithm. In order to compare the performance of the ATPGs as the circuit under test increases in complexity, it is important to use regular structures that consist of replication of medium size circuits. Practical considerations involved in benchmarking are also examined. Emphasis is on the transfer of circuits between different CATS systems and the use of EDIF as a neutral exchange language.

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Fujita, Kohei, and Tsuyoshi Ichimura. "Development Of Large-Scale Three-Dimensional Seismic Ground Strain Response Analysis Method and Its Application to Tokyo using Full K Computer." Journal of Earthquake and Tsunami 10, no. 05 (December 2016): 1640017. http://dx.doi.org/10.1142/s1793431116400170.

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We developed a large-scale three-dimensional ground analysis method aimed at improving the estimation of dynamic ground strain during earthquakes. Using the developed ground modeling and analysis method, a 40 billion degrees-of-freedom unstructured finite element ground model of a 3.25[Formula: see text]km × 3.25[Formula: see text]km area of Tokyo was generated with 0.66[Formula: see text]m sized elements, and its strain time history for ground motion of the 1995 Kobe wave was computed using the full K computer system with 82,944 compute nodes. The obtained strain response showed a complex distribution reflecting the input wave characteristics, surface topography, and underlying ground structure. We also showed the seismic response of 41,675 buildings in the target area computed using the wave at surface as an input. Such a method is expected to be useful for the improvement of seismic design and mitigation of pipelines against anticipated earthquakes.

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Li, Chengtai, Yiming Zhang, Ying Weng, Boding Wang, and Zhenzhu Li. "Natural Language Processing Applications for Computer-Aided Diagnosis in Oncology." Diagnostics 13, no. 2 (January 12, 2023): 286. http://dx.doi.org/10.3390/diagnostics13020286.

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In the era of big data, text-based medical data, such as electronic health records (EHR) and electronic medical records (EMR), are growing rapidly. EHR and EMR are collected from patients to record their basic information, lab tests, vital signs, clinical notes, and reports. EHR and EMR contain the helpful information to assist oncologists in computer-aided diagnosis and decision making. However, it is time consuming for doctors to extract the valuable information they need and analyze the information from the EHR and EMR data. Recently, more and more research works have applied natural language processing (NLP) techniques, i.e., rule-based, machine learning-based, and deep learning-based techniques, on the EHR and EMR data for computer-aided diagnosis in oncology. The objective of this review is to narratively review the recent progress in the area of NLP applications for computer-aided diagnosis in oncology. Moreover, we intend to reduce the research gap between artificial intelligence (AI) experts and clinical specialists to design better NLP applications. We originally identified 295 articles from the three electronic databases: PubMed, Google Scholar, and ACL Anthology; then, we removed the duplicated papers and manually screened the irrelevant papers based on the content of the abstract; finally, we included a total of 23 articles after the screening process of the literature review. Furthermore, we provided an in-depth analysis and categorized these studies into seven cancer types: breast cancer, lung cancer, liver cancer, prostate cancer, pancreatic cancer, colorectal cancer, and brain tumors. Additionally, we identified the current limitations of NLP applications on supporting the clinical practices and we suggest some promising future research directions in this paper.

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Zubizarreta-Macho, Álvaro, Sara Valle Castaño, José María Montiel-Company, and Jesús Mena-Álvarez. "Effect of Computer-Aided Navigation Techniques on the Accuracy of Endodontic Access Cavities: A Systematic Review and Meta-Analysis." Biology 10, no. 3 (March 10, 2021): 212. http://dx.doi.org/10.3390/biology10030212.

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The present systematic review and meta-analysis aims to determine the effect of computer-aided navigation techniques on the accuracy of endodontic access cavities. Materials and methods: A systematic literature review and meta-analysis of clinical studies, based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) recommendations, was performed that evaluated the root canal location rate of computer-aided navigation techniques applied to endodontic access cavities. Four different databases were used to consult the literature: PubMed-Medline, Scopus, Cochrane, and Web of Science. After discarding duplicate articles and applying inclusion criteria, 14 articles were selected for qualitative analysis and 13 for quantitative analysis. Results: the root canal location success rate started at 98.1% (CI: 95.7–100%) of the cases performed through a computer-aided navigation technique. The prediction interval ranged from 93.3% to 100%. The meta-analysis did not detect heterogeneity between the combined studies (Q-test = 17.3; p = 0.185; I2 = 25%). No statistically significant differences were found between computer-aided static navigation techniques (success rate: 98.5%) and computer-aided dynamic navigation techniques (success rate: 94.5%) (Q test = 0.57; p = 0.451), nor between in vitro studies (success rate: 96.2%) and in vivo studies (success rate: 100%) (Q test = 2.53; p-value = 0.112). An odds success ratio of 13.1 (CI: 95%; 3.48, 49.1) encourages the use of computer-aided navigation techniques over conventional endodontic access cavity procedures. Conclusions: the endodontic access cavities created using static and dynamic computer-aided navigation techniques are highly accurate in locating the root canal system.

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Ribeiro, Diana, Eva Reis, Joana A. Marques, Rui I. Falacho, and Paulo J. Palma. "Guided Endodontics: Static vs. Dynamic Computer-Aided Techniques—A Literature Review." Journal of Personalized Medicine 12, no. 9 (September 15, 2022): 1516. http://dx.doi.org/10.3390/jpm12091516.

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(1) Background: access cavity preparation is the first stage of non-surgical endodontic treatment. The inaccuracy of this step may lead to numerous intraoperative complications, which impair the root canal treatment’s prognosis and therefore the tooth’s survival. Guided endodontics, meaning computer-aided static (SN) and dynamic navigation (DN) techniques, has recently emerged as a new approach for root canal location in complex cases. This review aims to compare SN and DN guided endodontics’ techniques in non-surgical endodontic treatment. (2) Methods: an electronic search was performed on PubMed, Scopus, and Cochrane Library databases until October 2021. Studies were restricted by language (English, Spanish and Portuguese) and year of publication (from 2011 to 2021). (3) Results: a total of 449, 168 and 32 articles were identified in PubMed, Scopus, and Cochrane Library databases, respectively, after the initial search. Of the 649 articles, 134 duplicates were discarded. In this case, 67 articles were selected after title and abstract screening, of which 60 were assessed for eligibility through full-text analysis, with one article being excluded. Four cross-references were added. Thus, 63 studies were included. (4) Conclusions: guided endodontics procedures present minimally invasive and accurate techniques which allow for highly predictable root canal location, greater tooth structure preservation and lower risk of iatrogenic damage, mainly when performed by less experienced operators. Both SN and DN approaches exhibit different advantages and disadvantages that make them useful in distinct clinical scenarios.

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Kaur, Rajandeep, Rajneesh Rani, and Roop Pahuja. "Text-Dependent and Text-Independent Writer Identification Approaches." International Journal of Software Innovation 10, no. 1 (January 2022): 1–23. http://dx.doi.org/10.4018/ijsi.297514.

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Writer identification is a wide-spreading biometric which can be used as a legitimate mean to identify an individual. It facilitates the experts to automatically identify the person in many security concerns applications such as forensic science. Due to this, much attention has been drawn in this field from the last few decades. On the basis of input text, it can have various forms like online, offline, text-dependent or text-independent writer identification. The paper will present a systematic study on text-dependent and text-independent writer identification of handwritten text images for various Indic and non-Indic scripts. The various segmentation techniques used to segment handwritten text are also presented in detail. The various datasets available for researchers are given for various scripts such as English, Arabic, Chinese, Japanese, Dutch, Farsi, Devanagari, Bangla, and Kannada discussed by doing exhaustive analysis of various studies. We hope that our research will be helpful in giving better understanding of the area and provides various directions for further research.

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Hong, Chenghua, Han Ge, Cunzhong Fang, Xuyang Zhao, Ning Liu, Bin Wang, and Yang Zhao. "Rapid Assembly Modeling in Computer Aided Design System." Journal of Physics: Conference Series 2146, no. 1 (January 1, 2022): 012022. http://dx.doi.org/10.1088/1742-6596/2146/1/012022.

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Abstract Rapid assembly modeling system is a tool that needs to be used in the design process. Because the three-dimensional modeling is intuitive, powerful and can be used in actual engineering, it is more and more used in manufacturing production. In the rapid development of computer-aided design technology, CAD/CAM software is the most commonly used and most widely used modeling tool. Therefore, the purpose of this article to study the rapid assembly modeling in the computer-aided design system is to improve the performance and accuracy of the assembly system and promote the high-quality production of products. This article mainly uses experimental method and case analysis method to test the assembly system designed in this article. The experimental results show that, under low temperature conditions, the relative error and absolute error of the assembly size are in a small space, which meets the actual requirements. Therefore, the system designed in this paper can be used in practice.

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Chu, Chi-Cheng, Jianzhong Mo, and Rajit Gadh. "A Quantitative Analysis on Virtual Reality-Based Computer Aided Design System Interfaces." Journal of Computing and Information Science in Engineering 2, no. 3 (September 1, 2002): 216–23. http://dx.doi.org/10.1115/1.1518265.

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In this paper, a series of interface tests on interaction approach for the generation of geometric shape designs via multi-sensory user interface of a Virtual Reality (VR) based System is presented. The goal of these interface tests is to identify an effective user interface for VR based Computer-Aided Design (CAD) system. The intuitiveness of the VR based interaction approach arises from the use of natural hand movements/gestures, and voice commands that emulate the way in which human beings discuss geometric shapes in reality. In order to evaluate the proposed interaction approach, a prototypical VR-CAD system is implemented. A series of interface tests were performed on the prototypical systems to determine the relative efficiency of a set of potential interaction approach with respect to specific fundamental design tasks. The interface test and its results are presented in this paper.

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Wang, Shu Yun, Xiong Gang Xie, and Xi Chen. "Computer Aided Design for Safety Analysis of Excavation in Stratified Rock Tunnel." Applied Mechanics and Materials 71-78 (July 2011): 3197–200. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.3197.

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Stratified rock mass is widely existing in tunnel engineering. The most relevant feature of stratified rocks is the occurrence of very persistent bedding, which makes the rock-mass highly non-isotropic. A number of techniques for designing underground excavations in stratified media have been described in the literature, like theoretical method and laboratory test, which can only be applied in analyzing the problem with simple geometry and costs much expense. Recently, with rapid development of computer technique, numerical simulation methods have been widely applied in engineerin. Among all the numerical simulation methods, fast lagrangian explicit finite difference code of continua (FLAC3D) is widely used to solve practical problems, especially in field of elasto-plastic characteristic, large deformation analysis and construction procedure. So in the present paper, numerical simulation for the failure mode of stratified rock mass after tunnel excavation is done by FLAC3D, which can give further guidance to understand the anisotropic characteristic of stratified rock mass.

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Zubizarreta-Macho, Álvaro, César Castillo-Amature, José María Montiel-Company, and Jesús Mena-Álvarez. "Efficacy of Computer-Aided Static Navigation Technique on the Accuracy of Endodontic Microsurgery. A Systematic Review and Meta-Analysis." Journal of Clinical Medicine 10, no. 2 (January 15, 2021): 313. http://dx.doi.org/10.3390/jcm10020313.

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The aim of this systematic review and meta-analysis was to analyze the efficacy of the computer-aided static navigation technique on the accuracy of root apex location in endodontic microsurgery. Material and Methods: A systematic literature review and meta-analysis, based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) recommendations, of clinical studies that evaluated the apex location rate of the computer-aided static navigation techniques applied to endodontic microsurgery. A total of four databases were consulted in the literature search: Pubmed-Medline, Scopus, Cochrane, and Web of Science. After eliminating duplicated articles and applying the inclusion criteria, seven articles were selected for the qualitative and the quantitative analysis. Results: The root apex location success rate stated at 96.8% (confidence interval (CI): 93.0–100%) of the cases performed through a computer-aided static navigation technique. The prediction interval ranges from 91.4% to 100%. The meta-analysis did not detect heterogeneity between the combined studies (Q-test = 6.15; p-value = 0.407; I2 = 2.4%). The computer-aided static navigation techniques showed a root apex location success rate 27 times higher than conventional endodontic microsurgery procedures (Q test = 0.80; p = 0.671; I2 = 0%). Three studies of computer-aided static navigation techniques and control group were compared using a random effects model with the Mantel-Haenszel method with a statistically significant odds success ratio of 27.7, with a 95% confidence interval between 11.3 and 68.1 (z test = 7.23; p < 0.0001). Conclusions: According to in vitro studies analyzed, endodontic microsurgeries performed through computer-aided static navigation techniques show a high precision.

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Jewo, Andrew. "Computer Aided Analysis of Rotating Equipment Availability in Petrochemical Carbon Black Plant." European Journal of Engineering Research and Science 3, no. 12 (December 17, 2018): 50–55. http://dx.doi.org/10.24018/ejers.2018.3.12.996.

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High availability of industrial plant could only be achieved by adopting best global maintenance practices (computer software). In this research work, a software module was developed using programming tools such as Visual Basic (V.B) 6.0, Structured Query Language (SQL) and Microsoft Access. Operational data were collected from Warri Refinery and Petrochemical Company and was input into the developed software to analyze the plant availability. The performance test results obtained by the software for a five year period (2009-2013) showed that the software developed is consistently close to 100% accuracy. The output result indicates that the plant availability in 2009 is 9.59%; 2010 is 5.75%; 2011 is 7.12%; 2012 is 1.64% and 2013 is 6.30%. This highly fluctuating and low availability of raw material, inadequate maintenance strategies, aging plant and equipment, lack of spare parts stock for preventive and corrective maintenance for emergency, lack of standby (backup) equipment and utility constraints. It was observed that the aforementioned reasons invariably resulted to constant failure of plant availability could greatly be improved by adopting best global maintenance practices which include the deployment of appropriate software tools.

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Jewo, Andrew. "Computer Aided Analysis of Rotating Equipment Availability in Petrochemical Carbon Black Plant." European Journal of Engineering and Technology Research 3, no. 12 (December 17, 2018): 50–55. http://dx.doi.org/10.24018/ejeng.2018.3.12.996.

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High availability of industrial plant could only be achieved by adopting best global maintenance practices (computer software). In this research work, a software module was developed using programming tools such as Visual Basic (V.B) 6.0, Structured Query Language (SQL) and Microsoft Access. Operational data were collected from Warri Refinery and Petrochemical Company and was input into the developed software to analyze the plant availability. The performance test results obtained by the software for a five year period (2009-2013) showed that the software developed is consistently close to 100% accuracy. The output result indicates that the plant availability in 2009 is 9.59%; 2010 is 5.75%; 2011 is 7.12%; 2012 is 1.64% and 2013 is 6.30%. This highly fluctuating and low availability of raw material, inadequate maintenance strategies, aging plant and equipment, lack of spare parts stock for preventive and corrective maintenance for emergency, lack of standby (backup) equipment and utility constraints. It was observed that the aforementioned reasons invariably resulted to constant failure of plant availability could greatly be improved by adopting best global maintenance practices which include the deployment of appropriate software tools.

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Journal articles on the topic 'Computer aided text analysis'

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