ppxscal/embedding_network huggingface dataset:
Dominance made simple
Authors: Sanjeev Saxena
Venue: Information Processing Letters (2009)

In this note we show that it is extremely easy to answer dominance queries in three dimensions using only range minima routine (and a binary tree). The algorithm after preprocessing takes O(logn+S) time, where S is the size of output (after O(nlogn) time for pre-processing). The algorithm can also be used to answer 5-sided range queries, in same time bounds.
Software maintenance objectives
Authors: Ned Chapin
Venue: Proceedings of the May 16-19, 1983, national computer conference (1983)

Recent survey work indicates that the objectives held by managers of maintenance for application software are partially out of step with the managers' own perceptions of the demands on them. This is a possible cause of maintenance difficulties, to the extent that maintenance managers do guide their behavior by their professed objectives. It is a likely cause of maintenance difficulties if software maintenance is regarded as a service function in an organization, which the survey indicates is the case.
A Flexible Access Control Model for Dynamic Workflow Using Extended WAM and RBAC
Authors: Le Yang, Yongsun Choi
Venue: Computer Supported Cooperative Work in Design IV: 11th International Conference, CSCWD 2007, Melbourne, Australia, April 26-28, 2007. Revised Selected Papers (2008)

Security issues pertaining to workflow systems are becoming increasingly important for the cross-enterprises interoperability in insecure environments. Among them, access control for information confidentiality and integrity has attracted widespread attention. However, in the context of the contemporary dynamic business environment, the traditional workflow authorization model (WAM) faces limitations in handling the consequences of dynamic workflow changes and exceptions, since it focuses primarily on the synchronization of authorization flow by using authorization templates (ATs). In this paper, we propose a flexible access control with dynamic checking features for handling workflow changes and exceptions. Extended temporal role-based access control and flexible workflow authorization template are adopted in order to further enhance the traditional AT, thereby ensuring information confidentiality and integrity. Additionally, a case study applying the proposed model to uEngine, an open source workflow management system, is presented.
La recherche collaborative d'information sur internet: impact du lien affectif entre les jeunes collaborateurs
Authors: Jérôme Dinet, Brigitte Simonnot, Robin Vivian
Venue: Proceedings of the 20th International Conference of the Association Francophone d'Interaction Homme-Machine (2008)

Two experimental studies aim at describing the impacts of pair interaction and affective factors during the process of collaborative search for information on the World Wide Web when end-users are young learner recruited from Grade 3. In three successive sessions, students were asked to find answers to questions related to medieval on the Internet. In these three sessions, a student was asked to find these answers alone (condition "Alone"), or with a friend (condition "Affinity +"), or with an other pupil who was not a friend (condition "Affinity -"). Several significant results have been obtained: (1) pairs retrieved effectively more answers, more correct answers, and were more efficient than singles; (2) pairs composed of children without social retrieved more answers, more correct answers and were more efficient than pairs composed of friends; (3) pairs composed of friends produced significantly more irrelevant queries than pairs composed of children without social affinity; (4) pairs composed of children without social affinity are engaged in a great deal of consensus seeking, compared with the pairs composed of friends.
Nonparametric conditional density estimation using piecewise-linear solution path of kernel quantile regression
Authors: Ichiro Takeuchi, Kaname Nomura, Takafumi Kanamori
Venue: Neural Computation (2009)

The goal of regression analysis is to describe the stochastic relationship between an input vector x and a scalar output y. This can be achieved by estimating the entire conditional density p(y ∣ x). In this letter, we present a new approach for nonparametric conditional density estimation. We develop a piecewise-linear path-following method for kernel-based quantile regression. It enables us to estimate the cumulative distribution function of p(y ∣ x) in piecewise-linear form for all x in the input domain. Theoretical analyses and experimental results are presented to show the effectiveness of the approach.
Toward an On-Demand Restricted Delegation Mechanism for Grids
Authors: Mehran Ahsant, Jim Basney, Olle Mulmo, Adam Lee, Lennart Johnsson
Venue: Proceedings of the 7th IEEE/ACM International Conference on Grid Computing (2006)

Grids are intended to enable cross-organizational interactions which makes Grid security a challenging and non-trivial issue. In Grids, delegation is a key facility that can be used to authenticate and authorize requests on behalf of disconnected users. In current Grid systems there is a trade-off between flexibility and security in the context of delegation. Applications must choose between limited or full delegation: on one hand, delegating a restricted set of rights reduces exposure to attack but also limits the flexibility/dynamism of the application; on the other hand, delegating all rights provides maximum flexibility but increases exposure. In this paper, we propose an on-demand restricted delegation mechanism, aimed at addressing the shortcomings of current delegation mechanisms by providing restricted delegation in a flexible fashion as needed for Grid applications. This mechanism provides an ontology-based solution for tackling one the most challenging issues in security systems, which is the principle of least privileges. It utilizes a callback mechanism, which allows on-demand provisioning of delegated credentials in addition to observing, screening, and auditing delegated rights at runtime. This mechanism provides support for generating delegation credentials with a very limited and well-defined range of capabilities or policies, where a delegator is able to grant a delegatee a set of restricted and limited rights, implicitly or explicitly.
A Workflow Solution for Electronic Health Records to Improve Healthcare Delivery Efficiency in Rural India
Authors: Anant R. Koppar, V. Sridhar
Venue: Proceedings of the 2009 International Conference on eHealth, Telemedicine, and Social Medicine (2009)

Use of Information Technology in Healthcare, especially Electronic Health Records (EHRs), can potentially improve healthcare. However, worldwide usage of EHRs is limited and studies in developed countries like USA have shown that electronic record systems have been slow to become part of the practices of the physicians. According to these studies, there could be a possible high failure rate for electronic health record implementation because of the complexity of usage of these EHR systems. In India, there have been no definitive national studies that provide estimates on the use of electronic health records. To gain insight into the functioning of the healthcare centers in rural India with respect to use of information technology and their effectiveness in healthcare delivery a survey was done. From the results of the survey it is evident that the quality of healthcare delivery in rural India can be improved by using information technology. The patient records used in most of the healthcare centers were poorly maintained and had minimal data to help doctors treat the patient effectively. The usage of medical records was also very minimal thus leading to reduction in effectiveness of healthcare delivery. The patient referrals from one healthcare center to another were done mostly by paper documents and telephonic talk. As there were no facilities to accurately track patients history, the quality of referrals and hence the quality of healthcare delivery suffered. The investigation revealed that the operating efficiency of the healthcare centers could be improved by employing EHRs that suit the rural environment. Fully functional EHRs are very elaborate and cumbersome to use in the rural context and they do not incentivize the doctors to use them. An Employable Electronic Health Record (EEHR) that has basic functionality and adequate information for the purpose of rural patients can motivate the doctors to use the EHR system. It will be simple to use and pragmatic for implementation. An EEHR Workflow Solution (WebEHR) is proposed for effective and improved healthcare delivery.
The RBVO Formation Protocol
Authors: Jiri Vokrinek, Jiri Biba, Jiri Hodik, Jaromir Vybihal
Venue: International Journal of Agent-Oriented Software Engineering (2009)

The proposed protocol has been designed to support the flexible formation of Request-Based Virtual Organisations (RBVOs) with an emphasis on reflecting the conditions of real competitive environments. It supports automated or semi-automated negotiations mainly in the creation part of a Virtual Organisation (VO) life cycle and it accounts for the use of Service Level Agreements (SLAs). The protocol consists of three phases: (1) potential partner search, (2) negotiation of SLAs and the RBVO establishment, and (3) RBVO (execution and) dissolution. The protocol complies with Foundation for Intelligent Physical Agents (FIPA) standards and it has been utilised in the multiagent prototype in a real industrial case. The prototype has been implemented on top of a web-service-based agent platform.
Invariant-strengthened elimination of dependent state elements
Authors: Michael L. Case, Alan Mishchenko, Robert K. Brayton, Jason Baumgartner, Hari Mony
Venue: Proceedings of the 2008 International Conference on Formal Methods in Computer-Aided Design (2008)

This work presents a technology-independent synthesis optimization that is effective in reducing the total number of state elements of a design. It works by identifying and eliminating dependent state elements which may be expressed as functions of other registers. For scalability, we rely exclusively on SAT-based analysis in this process. To enable optimal identification of all dependent state elements, we integrate an inductive invariant generation framework. We introduce numerous techniques to heuristically enhance the reduction potential of our method, and experiments confirm that our approach is scalable and is able to reduce state element count by 12% on average in large industrial designs, even after other aggressive optimizations such as minregister retiming have been applied. The method is effective in simplifying later verification efforts.
Multimedia Data Mining: A Systematic Introduction to Concepts and Theory, 1 edition
Authors: Zhongfei Zhang, Ruofei Zhang
Venue:  (2008)

Collecting the latest developments in the field, Multimedia Data Mining: A Systematic Introduction to Concepts and Theory defines multimedia data mining, its theory, and its applications. Two of the most active researchers in multimedia data mining explore how this young area has rapidly developed in recent years. The book first discusses the theoretical foundations of multimedia data mining, presenting commonly used feature representation, knowledge representation, statistical learning, and soft computing techniques. It then provides application examples that showcase the great potential of multimedia data mining technologies. In this part, the authors show how to develop a semantic repository training method and a concept discovery method in an imagery database. They demonstrate how knowledge discovery helps achieve the goal of imagery annotation. The authors also describe an effective solution to large-scale video search, along with an application of audio data classification and categorization. This novel, self-contained book examines how the merging of multimedia and data mining research can promote the understanding and advance the development of knowledge discovery in multimedia data.
Scalability of network-failure resilience: analysis using multi-layer probabilistic graphical models
Authors: Guanglei Liu, Chuanyi Ji
Venue: IEEE/ACM Transactions on Networking (TON) (2009)

In this work, we quantify scalability of network re-silience upon failures. We characterize resilience as the percentage of lost traffic upon failures and define scalability as the growth rate of the percentage of lost traffic with respect to network size, link failure probability, and network traffic for given failure protection schemes. We apply probabilistic graphical models to characterize statistical dependence between physical-layer failures and the net-work-layer traffic, and analyze the scalability for large networks of different topologies. We first focus on the scalability of resilience for regular topolo-gies under uniform deterministic traffic with independent and de-pendent link failures, with and without protection. For large net-works with small probabilities of failures and without protection, we show that the scalability of network resilience grows linearly with the average route length and with the "effective" link failure probability. For large networks with 1 + 1 protection, we obtain lower and upper bound of the percentage of lost traffic. We de-rive approximations of the scalability for arbitrary topologies, and attain close-form analytical results for ring, star, and mesh-torus topologies. We then study network resilience under random traffic with Poisson arrivals. We find that when the network is under light load, the network resilience is reduced to that under uniform de-terministic traffic. When the network load is under heavy load, the percentage of lost traffic approaches the marginal probability of link failure. Our scalability analysis shows explicitly how network resilience varies with different factors and provides insights for re-silient network design.
Implementing Automated Software Testing: How to Save Time and Lower Costs While Raising Quality, 1st edition
Authors: Elfriede Dustin, Thom Garrett, Bernie Gauf
Venue:  (2009)

This book fills a huge gap in our knowledge of software testing. It does an excellent job describing how test automation differs from other test activities, and clearly lays out what kind of skills and knowledge are needed to automate tests. The book is essential reading for students of testing and a bible for practitioners.Jeff Offutt, Professor of Software Engineering, George Mason UniversityThis new book naturally expands upon its predecessor, Automated Software Testing, and is the perfect reference for software practitioners applying automated software testing to their development efforts. Mandatory reading for software testing professionals!Jeff Rashka, PMP, Coauthor of Automated Software Testing and Quality Web SystemsTesting accounts for an increasingly large percentage of the time and cost of new software development. Using automated software testing (AST), developers and software testers can optimize the software testing lifecycle and thus reduce cost. As technologies and development grow increasingly complex, AST becomes even more indispensable. This book builds on some of the proven practices and the automated testing lifecycle methodology (ATLM) described in Automated Software Testing and provides a renewed practical, start-to-finish guide to implementing AST successfully.In Implementing Automated Software Testing, three leading experts explain AST in detail, systematically reviewing its components, capabilities, and limitations. Drawing on their experience deploying AST in both defense and commercial industry, they walk you through the entire implementation processidentifying best practices, crucial success factors, and key pitfalls along with solutions for avoiding them. You will learn how to: Make a realistic business case for AST, and use it to drive your initiative Clarify your testing requirements and develop an automation strategy that reflects them Build efficient test environments and choose the right automation tools and techniques for your environment Use proven metrics to continuously track your progress and adjust accordinglyWhether youre a test professional, QA specialist, project manager, or developer, this book can help you bring unprecedented efficiency to testingand then use AST to improve your entire development lifecycle.
Use of websites for disseminating health information in developing countries: an experience from Sri Lanka
Authors: Mahinda Kommalage, Anoj Thabrew
Venue: Proceedings of the 2nd International Conference on Theory and Practice of Electronic Governance (2008)

The Internet is a relatively new medium for disseminating health information. Most studies on Internet usage for disseminating health information were carried out in developed countries. Very few studies were carried out in developing countries. This study was designed to investigate the quantitative and qualitative information about health related websites in Sri Lanka. Google and Yahoo search engines were used to search for Sri Lankan health websites. The key words used were 'Sri Lanka health', 'Sri Lanka medicine', Sri Lanka drug', 'Sri Lanka treatment'. Ninety eight websites were selected and data collected from 86 of these websites which were online during the period of data collection. Results show that 87.2% of websites contained less than 100 web pages. 39.5% and 20.9% of websites were owned by local non-business organizations and business organizations, respectively while 61.6% of websites were non-profitable websites. 93% of the websites were published only in English. Only 8.1% of websites provide health educational content for general public as their main content. 64.4% of websites are controlled by a Sri Lankan or a Sri Lankan organization. Quality Score is higher in the websites owned by local non-business organizations over the business organizations as well as non-profitable websites over profitable websites. Quality Score of the websites does not depend on the period of existence or whether website originated from Sri Lanka. We conclude that the total number of websites has not increased compared to the increase in internet usage during last few years in Sri Lanka. Internet is an underutilized health education tool despite the rapid growth of internet usage in Sri Lanka. Even though Internet usage has grown rapidly in most developing countries, dissemination of health information through internet may not have been developed adequately in such countries.
Education, ethics and e-Communication in medicine
Authors: Liliana Rogozea, Roxana Miclaus, Codruta Nemet, Alexandru Balescu, Ion Moleavin
Venue: Proceedings of the 8th WSEAS international conference on Distance learning and web engineering (2008)

The article attempts to introduce an ethical approach of communication aspects with respect to the use of Internet and its influence on University Transilvania of Brasov medical students. The profound changes of medical ethics in the informatics society are well known. Although ethics is an ancient concern of humanity it cannot ignore the present times' developments in technology and science, including computer science, and especially today when e-Health benefits from e-mail, chat rooms, online discussion group, forums, blogs or instant messaging. Obvious the students feel these communication paths' influence so designing and developing a subject as ethics in communication and e-Health became very important in the education of medical students and in the future education of computer sciences and medical engineering students.
Guinness "Tipping Point"
Authors: Nicolai Fuglsig
Venue: ACM SIGGRAPH ASIA 2008 computer animation festival (2008)

The Mill team, led by 2D Flame Operator Neil Davies and 3D Supervisor Jordi Bares, worked with AMV BBDO to ensure that the ad's "domino effect" was absolutely seamless, but also that it looked atmospheric. Flame was used to enhance the cinematic feel of the opening shot, to age the texture of buildings, and to add in extra villagers to make the film picturesque.
Design and analysis of a highly secure stream cipher based on linear feedback shift register
Authors: P. P. Deepthi, Deepa Sara John, P. S. Sathidevi
Venue: Computers and Electrical Engineering (2009)

Linear feedback shift register (LFSR) based stream ciphers are popular because of their low hardware implementation costs. The nonlinear combination generators and clock-controlled generators are two very commonly used schemes in LFSR based stream ciphers. FPGA implementation of these two schemes has been done to obtain an idea about the hardware complexity of the two schemes. The fast correlation attack and edit distance attack, which are the fastest of the reported attacks on the nonlinear combination generators and clock-controlled generators respectively, have been implemented. A new model for LFSR based keystream generation has been proposed by combining the two existing schemes. The proposed model is based on the detailed comparative study and cryptanalysis of the two existing schemes mentioned.
Cooperative Diversity Spectrum Cognitive Scheme Based on Game Theory
Authors: Ye Zhihui, Shen Keqin, Chen Qimei
Venue: Proceedings of the 2009 WRI International Conference on Communications and Mobile Computing - Volume 01 (2009)

Wireless spectrum environment cognitive is significant for improving spectrum efficiency, and cooperative diversity can enhance capacity of system and quality of service. A kind of cooperative diversity spectrum cognitive scheme based on game theory is proposed, which utilizing cooperate cognitive for data merging, along with exciting mechanism to spur selfish nodes in networks to be willing to provide cooperation. Simulations show that the performance of the cognitive radio networks is optimized.
A new two-stage hybrid approach of credit risk in banking industry
Authors: Shu Ling Lin
Venue: Expert Systems with Applications: An International Journal (2009)

The rationale under the analyses is to propose a new approach by three kinds of two-stage hybrid models of logistic regression-ANN, to explore if the two-stage hybrid model outperformed the traditional ones, and to construct a financial distress warning system for banking industry in Taiwan. The differences from the literatures are that this study adopts the ''optimal cutoff point'' approach proposed by Hosmer and Lemeshow [Hosmer, D. W., & Lemeshow, S. L. (2000). Applied logistic regression (2nd ed.). New York: A Wiley-Interscience], to determine the cutoff point for financial distress. Additionally, cross-validation [Efron, B., & Tibshirani, R. J. (1993). An introduction to the bootstrap. New York: Chapman and Hall; Stone, M. (1974). Cross-validation choice and assessment of statistical predictions. Journal of Royal Statistical Society. Series B, 36, 111-147] is used to evaluate the prediction power of the constructed models. The results find the factors of observable loans to total loans, allowance for doubtful accounts recovery rate, and interest-sensitive assets to liabilities ratio are significantly related to the financial distress of banks in Taiwan. In the prediction of financially distressed, two-stage hybrid model giving the best performance of 80.0% using cross-validation approach and demonstrates stronger prediction power than conventional logistic regression, logarithm logistic regression, and ANN approaches. It demonstrates that the two-stage hybrid model outperforms the conventional method, providing an alternative in handling credit risk modeling which have assessment implications for analysts, practitioners, and regulators.