1,723,616 research outputs found
Book Review: Shrestha, Omkar Lal, and Aekapol Chongvilaivan (eds), Greater Mekong Subregion: From Geographical to Socio-economic Integration
No full textBook Review of the edited volume: Omkar Lal Shrestha and Aekapol Chongvilaivan (eds) (2013), Greater Mekong Subregion: From Geographical to Socio-economic Integration. Singapore: Institute of Southeast Asian Studies (ISEAS), ISBN: 978-981-4379-68-7, 270 page
Book Review: Shrestha, Omkar Lal, and Aekapol Chongvilaivan (eds), Greater Mekong Subregion: From Geographical to Socio-economic Integration
No full textBook Review of the edited volume: Omkar Lal Shrestha and Aekapol Chongvilaivan (eds) (2013), Greater Mekong Subregion: From Geographical to Socio-economic Integration. Singapore: Institute of Southeast Asian Studies (ISEAS), ISBN: 978-981-4379-68-7, 270 page
Breast tumor detection in ultrasound images using artificial intelligence
No full textLeveraging artificial intelligence (AI) for categorizing breast tumors as malignant or benign from breast ultrasound images can provide an effective and relatively low-cost method for the diagnosis of breast cancer. Presently, many machine learning (ML) and deep learning (DL) algorithms have been used for early-stage breast cancer detection. AI algorithms have shown promising results in breast cancer detection tasks. The use of deep convolutional neural network approaches has provided solutions for the efficient analysis of breast ultrasound images. Convolutional neural network (CNN) models analyze the image data in multiple layers and extract features which helps in better feature extractions and better performance in comparison to the conventional ML algorithms. Apart from conventional learning algorithms, we use the transfer learning technique which uses knowledge from its previous training in another related problem set. In this chapter, we have demonstrated the use of DL models through transfer learning, deep feature extraction, machine learning models, and comparison of their performances
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Propagation of spherically expanding premixed flames
Full text linkThe propagation of spherically expanding premixed flames is investigated, in both confined and unconfined scenarios. In the unconfined case, the flame propagates at nearly isobaric conditions and the flame displacement speed eventually reaches a constant value whereas in the confined case there is pressure buildup which affects the flame displacement speed which increases as the flame grows larger. In the confined case, the evolution of the flame with time is studied with emphasis on properties like pressure as a function of time, temperature and velocity field in the channel and the displacement speed. The temperature profiles over the domain are obtained which give an idea about the flame thickness at that instant in time. Effect of the Lewis number on the behavior of the flame is examined in the unconfined scenario. Also, the effect of stretch rate on local density weighted flame displacement speeds is studied, which indicates toward the consistent definition of the flame displacement speed.
The numerical results are compared with a non-linear analytical model that treats the flame as a density discontinuity. This model requires only solving the hydro dynamic equations along with the appropriate jump conditions across the flame front. The main difference between the numerical and the analytical solution is that the numerical solution takes into consideration a finite rate chemistry throughout the domain whereas in the analytical solution the reaction rate is modeled as a delta function. Similarities and differences between
the analytical and the numerical solution are studied.Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2017-05-01The student, Omkar Lokhande, accepted the attached license on 2015-04-28 at 12:29.The student, Omkar Lokhande, submitted this Thesis for approval on 2015-04-28 at 12:40.This Thesis was approved for publication on 2015-04-29 at 15:44.DSpace SAF Submission Ingestion Package generated from Vireo submission #8156 on 2015-07-22 at 14:26:32Made available in DSpace on 2015-07-22T22:46:06Z (GMT). No. of bitstreams: 2
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Previous issue date: 2015-04-29Embargo set by: Seth Robbins for item 80034
Lift date: 2017-07-22T22:46:21Z
Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemLimited Restriction Lifted for Item 80034 on 2017-07-23T09:15:17Z
Distilling arguments: A study of human and LLM persuasion in the online discourse
Full text linkSubmission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo termsThe student, Omkar Gurjar, accepted the attached license on 2025-04-25 at 13:28.The student, Omkar Gurjar, submitted this Thesis for approval on 2025-04-25 at 13:36.This Thesis was approved for publication on 2025-04-25 at 16:25.DSpace SAF Submission Ingestion Package generated from Vireo submission #21972 on 2025-10-19 at 18:11:00Persuasion is a key component of human interaction and has been extensively studied by computer scientists. Recent breakthroughs in AI agents, particularly large language models (LLMs), have opened up unprecedented avenues of online interaction, where users are increasingly exposed to AI-generated content. This makes it imperative to study the dynamics of persuasion in online communities and assess the effects LLMs might have on them. In this thesis, we address three crucial areas. First, we examine online user debates and characterize the persuasive strategies employed across different topics. Next, we evaluate the ability of state-of-the-art LLMs to generate and detect persuasive content. Finally, we address the potential misuse of LLMs towards influencing public opinion and explore summarization-based mitigation strategies. Our findings show that humans’ persuasive strategies vary significantly across topics, and LLMs demonstrate a reasonable understanding of persuasive content. Further, we find that LLMs tend to emphasize factual elements when summarizing arguments, although the results differ highly with the topic. We believe our work offers valuable insights into the dynamics of online persuasion and contributes to building robust guardrails against AI-generated persuasive content
Book Review: Sonalde Desai, Prem Vashishtha and Omkar Joshi, Mahatma Gandhi National Rural Employment Guarantee Act: A Catalyst for Rural Transformation
No full text Sonalde Desai, Prem Vashishtha and Omkar Joshi, Mahatma Gandhi National Rural Employment Guarantee Act: A Catalyst for Rural Transformation. New Delhi: NCAER, 2015, 191 pp., price not mentioned. </jats:p
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
A game theoretic approach to UAV routing and information collection
Full text linkIn recent times, the use of Unmanned aerial vehicles (UAVs) for tasks which involve high endurance or perilous environments, has become increasingly vital. A typical problem is that of information collection, in particular when multiple UAVs are involved, which prompts an important problem of routing these UAVs through the search environment with the goal of maximizing the collected information. Most of the previous line of work assumes a centralized control and full communication among the UAVs, thus posing this as an optimization problem solved via centralized solutions. However, in applications where communication is infeasible, each UAV must individually solve the problem. Assuming a natural scenario of UAVs being compensated for the collected information makes them self-interested agents trying to maximize their payoffs. Consequently, our game-theoretic approach is a natural fit. While our game model is primarily based on the game model used in a previous work, it is also significantly generalized, incorporating interesting facets of information fusion and multi-modality-composed information. This game is closely related to the well-studied classes of congestion-type and resource selection games, but cannot be cast into these classes unless certain critical constraints are relaxed. Our contribution to this literature, is a result on existence of pure Nash equilibria via existence of the Finite Improvement Property, which applies to any singleton congestion-type games having a certain class of payoff functions. Finally, to our best knowledge, our results providing theoretically guaranteed tight bounds on the Price of anarchy and Price of stability, are the first such results in the literature involving a game theoretic approach to UAV routing.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2019-05-01The student, Omkar Thakoor, accepted the attached license on 2017-04-25 at 16:07.The student, Omkar Thakoor, submitted this Thesis for approval on 2017-04-25 at 16:36.This Thesis was approved for publication on 2017-04-26 at 09:43.DSpace SAF Submission Ingestion Package generated from Vireo submission #11060 on 2017-08-10 at 15:07:04Made available in DSpace on 2017-08-10T20:33:25Z (GMT). No. of bitstreams: 2
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Previous issue date: 2017-04-26Embargo set by: Colleen Fallaw for item 102838
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Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemU of I Only Restriction Lifted for Item 102838 on 2019-08-11T09:15:10Z
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