Papers by Venkatesh Kamat
Communications in computer and information science, 2024
Computer Science Research Notes
Understanding shapes is an organic process for us (humans) as this is fundamental to our interact... more Understanding shapes is an organic process for us (humans) as this is fundamental to our interaction with the surrounding world. However, it is daunting for the machines. Any shape analysis task, particularly non-rigid shape correspondence is challenging due to the ever-increasing resolution of datasets available. Shape Correspondence refers to finding a mapping among various shape elements. The functional map framework deals with this problem efficiently by not processing the shapes directly but rather specifying an additional structure on each shape and then performing analysis in the spectral domain of the shapes. To determine the domain, the Laplace-Beltrami operator has been utilized generally due to its capability of capturing the global geometry of the shape. However, it tends to smoothen out high-frequency features of shape, which results in failure to capture fine details and sharp features of shape for the analysis. To capture such high-frequency sharp features of the shap...
2018 IEEE Tenth International Conference on Technology for Education (T4E), 2018
A student that is sufficiently involved in the learning process usually shows higher performance ... more A student that is sufficiently involved in the learning process usually shows higher performance with respect to the objectives set for the process. Of course, this requires alignment of the instructional strategy with the objectives so that a student is lead on to the path to reach the optimal performance. This is true even for minuscule unit of learning concept and requires careful planning. However, when the framework is meticulously planned for every activity carried out in the learning process, the focus is on student's engagement in the tasks being executed. Student engagement is important and beneficial not only for student's academic efficacy, learning and achievement, but also for his socialization, welfare, satisfaction with life and effective learning. This paper focuses on investigating the relationship between response time, engagement and the performance of the students as a part of larger research work that aims at devising a technique of identifying engagement within an on-line learning environment.
The two crucial assets of summative examination are question paper and the answers-scripts. Maint... more The two crucial assets of summative examination are question paper and the answers-scripts. Maintenance of secrecy of question paper/answers-scripts within its defined perimeters is extremely important to protect the sanctity and fairness of the summative examination. In addition to the secrecy of question paper/answers-scripts, anonymity between students and examiners is also equally important for ensuring an unbiased evaluation. Anonymity and secrecy is required in an examination environment to prevent the student and any other entity from coercing with each other and indulging in unfair means. It appears that, establishing secrecy of answers-scripts from examination authority is a bit tricky task as examination authority itself needs to receive the answers-scripts submitted by students for forwarding it to the examiners for evaluation. In this paper, we propose a dual purpose cryptographic scheme for achieving anonymity of students and examiners from each other besides the secrec...
Human face anthropometric measurements are used in forensics, orthodontics, face modelling and ma... more Human face anthropometric measurements are used in forensics, orthodontics, face modelling and many other domains, wherein distance between set of facial landmarks play an important role to make inferences. 3D facial data captured using specialized acquisition methods can be used to reduce the time and tedious task involved in order to compute these measurements. The proposed method is developed to compute fifteen canonical linear measurements between facial landmarks using Kinect camera. Results obtained from this system are compared with the traditional method of measurement using digital Vernier caliper. The experimental results indicate that measurements using RGB-D data obtained from Kinect are good enough for a quick preliminary assessment of the subject as compared to traditional method.
2018 IEEE Tenth International Conference on Technology for Education (T4E), 2018
Public examinations are conducted worldwide for certification, placement, promotion, etc. As thes... more Public examinations are conducted worldwide for certification, placement, promotion, etc. As these examinations are high stake examinations, evaluation of the answer-scripts needs to be carried out in a uniform, error-free and unbiased manner. However, the large quantum of answer-scripts pertaining to each subject/course paper invariably introduces evaluation anomalies. Coupled with this, evaluation also suffers from intra/inter examiner heterogeneity and subjectivity. Some of the currently used approaches such as moderation of answerscripts, in-house verification, personal verification, re-evaluation of answer-scripts and scaling of marks, only provide cursory relief from anomalous and heterogeneous evaluation. This is apparent from alarmingly increasing cases of verification/reevaluation converging into significant changes in the original marks. In this paper, we propose an E-moderation scheme using machine learning techniques to classify each answer evaluation as negligent or normal and further predict scale.
2012 IEEE Fourth International Conference on Technology for Education, 2012
Present mass education system that can best be described using the factory metaphor is witnessing... more Present mass education system that can best be described using the factory metaphor is witnessing criminal wastage of resources. Despite of regulatory framework and accreditation mechanism, the quality in mass higher education system in India still remains elusive. We observe that Lean and Agile practices that have met with great success in manufacturing and software industry can offer few of their practices to higher education in order to reduce the wastage. In this paper we have reflected on some of the current practices in higher education and proposed an Agile Manifesto for education on the lines of Agile Manifesto in the software development. The paper puts forward a novel idea of how we can improve the quality and productivity in education sector by practicing the agile manifesto with the help of ICT.
International Journal of Advanced Research in Computer Science, 2018
Educational institutions worldwide face an ever increasing threat of malpractices during the cond... more Educational institutions worldwide face an ever increasing threat of malpractices during the conduct of summative assessments/examinations. Malpractices are perpetrated by students, controlling authority and the other external agents before, during and even after the assessments. Appropriate measures to deter and detect malpractices are essential to uphold the academic honesty and integrity of the assessment system. The identification of the source of the malpractice and the threat is utmost essential to plan the defence for curbing the malpractices. In this paper, we identify the threats encountered in the conventional/electronic assessments pertaining to the higher education and provide the comparative analysis of countermeasures adopted. We then provide the security analysis of the conventional/electronic assessments to understand the influence of the existing methods in attaining the required level of security to withstand the identified threats.
International Journal of Information and Communication Technology Education, 2018
Educational institutions worldwide conduct summative examinations to evaluate academic performanc... more Educational institutions worldwide conduct summative examinations to evaluate academic performance of students. Such summative examinations are normally subjective in nature in higher education institutions and needs manual evaluation. However, the manual evaluation of subjective answer-scripts often suffers from evaluation anomalies and the impact of ‘Examiner variability' or ‘Examiner subjectivity'. Examiner variability mainly occurs due to differences in perception and expectation of each examiner coupled with lapses/errors in evaluation. Most of the currently employed methods partly address the problem of evaluation errors/lapses and examiner subjectivity with the aid of extra checks such as re-checking, re-verification, re-evaluation, etc. We need a pragmatic and unified approach to ensure uniformity and error-free evaluation. In this article, the authors present a method of computer aided evaluation of subjective answer-scripts using rubrics. The proposed approach focu...
International Journal of Computer Aided Engineering and Technology, 2017
2016 IEEE Eighth International Conference on Technology for Education (T4E), 2016
Enriching design and creative thinking skills is unaccountably vital in these times of rapid chan... more Enriching design and creative thinking skills is unaccountably vital in these times of rapid changes and highly competitive pressure for elevated innovation. Thus training engineering undergraduates in design thinking form a substantial role in their making. Divergent and Convergent thinking skills are one of the most predominant design thinking skills which are needed to tailor novel and innovative solutions to a given problem. In an earlier study steered by Reddy (2016) [1], an intervention was proposed and executed, which amalgamated developing both divergent and convergent thinking during the multiple phases of problem solution in engineering. The above mentioned intervention used open problem solving and the method of scaffolding as a means of integrating these thinking skills in student training. The Intervention was conceptualized and employed in natural settings in order to investigate the ecological validity of the proposed intervention. The first iteration of the Design Based Research (DBR) exhibited significant improvisation in students thinking skills in both divergence and convergence. The present study makes an effort towards realizing the need of a tool to accustom the intervention designed by Reddy. We propose a system which integrates open problem solving and the process of training students’ develop their divergent and convergent thinking skills. The various features of the tool are upheld in a way that can effectively result in high performance of the desired thinking skills. Through this study we explore the second cycle of DBR as an extension of study geared by Reddy, by effectively rendering a technology enhanced learning environment in the form of a Web Based learning Tool (WBLT). The sample comprised of a mixture of MSc/MCA/BE or equivalent students (n=15). The most significant finding was that the Divergence and Convergence Thinking Skills showed noteworthy upsurge when student performance was evaluated and compared against their pre-test. The role of the tool in increasing these design thinking skills is being studied in this paper and the usability reported.
Lecture Notes in Computer Science, 2016
The prevalence of malpractices in the assessments carried by educational institutions worldwide a... more The prevalence of malpractices in the assessments carried by educational institutions worldwide appears to be very high. Appropriate measures to deter and prevent the malpractices during the examinations are necessary to uphold the academic integrity and to ensure the basic principles of fairness throughout the examination process. Some malpractices such as question paper leakage and collusion/plagiarism can be controlled considerably, if unique question paper is provided to each student/group of students. However, the use of unique question paper for each student/group of students brings up some security and performance challenges non-existent in the examination system with the common question paper. One specific challenge in the examinations with the unique question paper is binding the unique question paper with the answer-script produced by the student and establishing the anonymity of student and examiners from each other. The purpose of this paper is to propose a framework, that establishes and preserves the association between the given question paper and the answer-script and provide required anonymity to students and examiners during an exchange of the examination content. In order to achieve this goal, we first formalize the associativity and anonymity properties and then validate our framework by analyzing the associativity and anonymity properties for the existing conventional/electronic summative examination system.
2015 IEEE Seventh International Conference on Technology for Education (T4E), 2015
The problems associated with teaching in a class of technical education are too many. The huge st... more The problems associated with teaching in a class of technical education are too many. The huge strength resulted from a large number of students being attracted to technical education field, a smaller teacher to student ratio due to unavailability of skilled instructors, requirement of completion of syllabi within stipulated time, gaps between industry demands and the proficiency of the graduates passing, are some among the most important ones. A lot of research has been dedicated towards finding the needs of the industry that absorb these graduates and it has been proved time and again that these students are not industry ready when they pass out. A major reason could be the inability of the faculty to cater to each student characteristics. Also there has been enough empirical evidence that it is difficult to maintain the interest and engagement of the students. This study is being taken up with the intention to devise a solution that can address both these problems i.e. meeting individual needs of the student as well as keeping away the disengagement and disinterest of the students. The system proposed here combines the advantages of Adaptive Learning Environment(ALE) and that of Gamification. Adaptive element is expected to help to match contents to the individual characteristics using User Modeling while Gamified aspect is perceived as a means to increase the involvement of the students. This study aims at measuring performance and finding the effect of adaptation and gamification on these two characteristics. Through our experimentation we intend to establish the fact that a setting that involves adaptation and gamification can surely have an impact in improving the performance as well as thecommitment of the learners.
In this paper we define the framework for developing course material to teach Computer Graphics c... more In this paper we define the framework for developing course material to teach Computer Graphics courses. The paper will mainly discuss what support material is desired for effective teaching/learning the subject rather than implementation of a teaching tool. It lays emphasis on three important components of the courseware, mainly the design of course content, an experimenter's workbench and an assessment tool. The framework envisages the need for an integrated approach to courseware development for teaching / learning Computer Graphics. This approach would clearly separate the role of courseware developer from that of the delivery person (traditional teacher). The main theme of the paper is to develop learner-centric course content that will depend less on the teacher and more on the learner. Such a courseware would support three independent perspectives. Firstly, the developer's or author's perspective, which would view the course content as data or media objects that c...
Evaluation is an integral part of learning. A good objective test at the end of each learning obj... more Evaluation is an integral part of learning. A good objective test at the end of each learning objective can reveal a lot about the level of understanding of the learner. Question bank based evaluation often looses its freshness over a period, unless the questions are updated from time to time. In this paper we propose an alternate method wherein questions are generated from a template. Whenever a request is made to the template, a new instance of the question is generated. The concept is implemented for learning/testing tree data structures.
2011 IEEE International Conference on Technology for Education, 2011
Page 1. Using a Blended Approach to In-service Teacher Training: A Case Study Shailaja Sardessai ... more Page 1. Using a Blended Approach to In-service Teacher Training: A Case Study Shailaja Sardessai Directorate of Education Govt. of Goa Panaji, Goa shailasardessai@ yahoo.co.in Venkatesh V. Kamat Dept. of Computer Science ...
Mechanical and Electronics Engineering, 2009
Automatic feature recognition has been an active area of research in solid modeling for more than... more Automatic feature recognition has been an active area of research in solid modeling for more than two decades. In fact it is considered to be the most critical component in the integration of CAD/CAM. One of the hard problems in automatic feature recognition is to recognize interacting features. The inherent complexity of this problem is due to the missing geometry/topology information in the solid model, whenever features interact. Till date, the most promising techniques have used geometric reasoning algorithms to supply the partially missing information. In this paper, we have taken a very practical approach to the feature interaction problem. Whenever our feature recognition algorithm fails to recognize interacting features correctly, we allow the user to define a new feature. This User Defined feature is then added to the existing list of features. The entire feature list is then sent to the process planning module for preparing a detailed manufacturing plan. We claim that a User Defined feature provides a novel way to address the feature interaction problem using a man-in-the-loop interface.
2014 IEEE Sixth International Conference on Technology for Education, 2014
Examination system is the pivotal point around which the whole system of education is based. Exam... more Examination system is the pivotal point around which the whole system of education is based. Examination system comprises of number of laborious and error prone tasks, needing immense resources and time. Numerous electronic examination systems have been designed with the intent of improving the efficiency of current examination system. However, the existing e-examination systems are usually designed with little consideration for security and legal compliance. Providing adequate security services are desired in e-examination system, specially in those examinations which evaluate students for grading. In this paper, we explore the use of security protocols for exchanging question paper and answer-scripts between examination authority and students in a fair and non-repudiable manner without the involvement of trusted third party (TTP). We intend to use PROMELA for formal modelling of such protocols and SPIN tool for checking the validity of the proposed protocol.
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Papers by Venkatesh Kamat