ppxscal/embedding_network huggingface dataset:
Delegation of cryptographic servers for capture-resilient devices
Authors: Philip MacKenzie, Michael K. Reiter
Venue: Distributed Computing (2003)

A device that performs private key operations (signatures or decryptions), and whose private key operations are protected by a password, can be immunized against offline dictionary attacks in case of capture by forcing the device to confirm a password guess with a designated remote server in order to perform a private key operation. Recent proposals for achieving this allow untrusted servers and require no server initialization per device. In this paper we extend these proposals to enable dynamic delegation from one server to another; i.e., the device can subsequently use the second server to secure its private key operations. One application is to allow a user who is traveling to a foreign country to temporarily delegate to a server local to that country the ability to confirm password guesses and aid the user's device in performing private key operations, or in the limit, to temporarily delegate this ability to a token in the user's possession. Another application is proactive security for the device's private key, i.e., proactive updates to the device and servers to eliminate any threat of offline password guessing attacks due to previously compromised servers.
Bio2X: a rule-based approach for semi-automatic transformation of semi-structured biological data to XML
Authors: Song Yang, Sourav S. Bhowmick, Sanjay Madria
Venue: Data Knowledge Engineering (2005)

Data integration of geographically dispersed, heterogeneous, complex biological databases is a key research area. One of the key features of a successful data integration system is to have a simple self-describing data exchange format. However, many of the biological databases provide data in flat files which are poor data exchange formats. Fortunately, XML can be viewed as a powerful data model and better data exchange format. In this paper, we present the Bio2X system that transforms flat file data into highly hierarchical XML data using rule-based machine learning technique. Bio2X has been fully implemented using Java. Our experiments to transform real world biological data demonstrate the effectiveness of the Bio2X approach.
High Performance Computing Productivity Model Synthesis
Authors: Jeremy Kepner
Venue: International Journal of High Performance Computing Applications (2004)

The Defense Advanced Research Projects Agency (DARPA) High Productivity Computing System (HPCS) program is developing systems that deliver increased value to users at a rate commensurate with the rate of improvement in the underlying technologies. For example, if the relevant technology was silicon, the goal of such a system would be to double in productivity (or value) every 18 months, following Moore's law. The key questions are how we define and measure productivity, and what the underlying technologies that affect productivity are. The goal of this paper is to synthesize from several different productivity models a single model that captures the main features of all the models. In addition we will start the process of putting the model on an empirical foundation by incorporating selected results from the software engineering and high performance computing (HPC) communities. An asymptotic analysis of the model is conducted to check that it makes sense in certain special cases. The model is extrapolated to a HPC context and several examples are explored, including HPC centers, HPC users, and interactive grid computing. Finally, the model hints at a profoundly different way of viewing HPC systems, where the user must be included in the equation, and innovative hardware is a key aspect to lowering the very high costs of HPC software.
Issues in the history of computing
Authors: Michael S. Mahoney
Venue: History of programming languages---II (1996)

It should be easy to do the history of computing. After all, computing began less than 50 years ago, and we have crowds of eye witnesses, mountains of documents, storerooms of original equipment, and the computer itself to process all the information those sources generate. What's so hard? What are we missing?
Sun Certified Developer for Java Web Services Study Guide (Exam 310-220), 1 edition
Authors: Mehran Habibi, Terry Camerlengo
Venue:  (2010)

Written by one of the developers of the new Sun Certified Web Services Developer for Java exam, this is the ideal study tool for anyone looking to get SCWSD certified. Based on a proven IT training and exam prep system, this study guide features complete coverage of all exam objectives, 250+ practice exam questions, step-by-step exercises, on-the-job elements, and chapter self-tests. The CD-ROM contains MasterExam software with hundreds of questions that appear only on the CD, a searchable electronic book, ezFlashcards for use with a PC or Pocket PC, and a bonus exam (with free online registration).
Finding Colluders in Card Games
Authors: C. Vallve-Guionnet
Venue: Proceedings of the International Conference on Information Technology: Coding and Computing (ITCC'05) - Volume II - Volume 02 (2005)

In card games, two or more players can act as colluders: they exchange information in order to collectively win the game. Electronic games (e-gaming) are supposed to be played under secure e-gaming protocols. Hence some tricks cannot be performed: card exchange, knowledge of opponent cards without their consent, shuffling and dealing the deck for one's own benefit, etc. Therefore, if two or more players collude, all they can do is exchange information. In the real world, other players can usually discover such colluders but, in a virtual world, colluders can use several ways to collude: cellular phones, instant messaging software, ... they could even be seating next to each other while playing. In this paper, several methods to detect collusion in virtual card games are described.
Novel Architectures of Class AB CMOS Mirrors with Programmable Gain
Authors: Chandrika Durbha, Jaime Ramírez-Angulo, Ramón G. Carvajal, Antonio J. López-Martín
Venue: Analog Integrated Circuits and Signal Processing (2005)

Two schemes for power-efficient gain-programmable V-I conversion based on class AB CMOS mirrors are introduced. The proposed topologies also allow for high-speed gain-programmable precision rectification. Experimental results from a test chip prototype in 0.5-¿ m CMOS technology with ±1 V supplies are shown that validate the proposed circuits.
Composition and distribution of resources for real-time computing systems
Authors: V. V. Toporkov
Venue: Automation and Remote Control (2005)

An approach to choosing the composition and distribution of resources for real-time computing systems is described. The methods are helpful in optimizing resource composition and task scheduling, depending on occurrence of certain events in a real-time computing system with scalable architecture.
Combining 3D flow fields with silhouette-based human motion capture for immersive video
Authors: Christian Theobalt, Joel Carranza, Marcus A. Magnor, Hans-Peter Seidel
Venue: Graphical Models (2004)

In recent years, the convergence of computer vision and computer graphics has put forth a new field of research that focuses on the reconstruction of real-world scenes from video streams. To make immersive 3D video reality, the whole pipeline spanning from scene acquisition over 3D video reconstruction to real-time rendering needs to be researched. In this paper, we describe latest advancements of our system to record, reconstruct and render free-viewpoint videos of human actors. We apply a silhouette-based non-intrusive motion capture algorithm making use of a 3D human body model to estimate the actor's parameters of motion from multi-view video streams. A renderer plays back the acquired motion sequence in real-time from any arbitrary perspective. Photo-realistic physical appearance of the moving actor is obtained by generating time-varying multi-view textures from video. This work shows how the motion capture sub-system can be enhanced by incorporating texture information from the input video streams into the tracking process. 3D motion fields are reconstructed from optical flow that are used in combination with silhouette matching to estimate pose parameters. We demonstrate that a high visual quality can be achieved with the proposed approach and validate the enhancements caused by the the motion field step.
Interlisp-D: further steps in the flight from time-sharing
Authors: Beau Sheil
Venue: Issue 77 (July 1981) (1981)

The Interslip-D project was formed to develop a personal machine inplementation of Interlisp for use as an environment for research in artificial intelligence and cognitive science [Burton et al., 80b]. This note describes the principal developments since our last report almost a year ago [Burton et al., 80a].
A generic model for an adaptive QoS management application
Authors: Wijak Srisujjalertwaja, Pattarasinee Bhattarakosol
Venue: Proceedings of the 4th international symposium on Information and communication technologies (2005)

Increasing of wireless application and the Internet usages lead to a new emerging technology, Wireless Internet. An adaptive application that can adapt to a high variable environment is needed. According to the Quality of Service (QoS) concept, QoS management is needed to ensure that the Service License Agreement (SLA) between client and server will be executed. This paper proposes a generic model for an adaptive QoS management application. A general QoS management model is presented as a framework of a system. An end-to-end QoS management functions on server-level and client-level are provided to maximize all users' satisfaction and each user satisfaction, respectively. End-to-end transmission delay is considered as a case study of the QoS management functions.
Using RoboCup in university-level computer science education
Authors: Elizabeth Sklar, Simon Parsons, Peter Stone
Venue: Journal on Educational Resources in Computing (JERIC) (2004)

In the education literature, team-based projects have proven to be an effective pedagogical methodology. We have been using RoboCup challenges as the basis for class projects in undergraduate and masters level courses. This article discusses several independent efforts in this direction and presents our work in the development of shared resources and evaluation instruments. We outline three courses and describe related class projects in order to make the context of our investigation clear and make it possible for others to replicate and extend our work as well as contribute to the shared resource.
Student performance studying ethics in the context of internet use
Authors: Barbara Boucher Owens
Venue: Journal of Computing Sciences in Colleges (2005)

The effectiveness of teaching ethical analysis concurrently with Internet use and development was studied in a course designed to: heighten the awareness of ethical issues surrounding the use of the Internet; aid students in making ethical decisions about their own computer use; and improve the critical analysis skills of the Internet user. First-year undergraduates completing this course improved their performance on standardized tests in moral reasoning (DIT) and Internet skills (Tek.Xam). The methodology of this pilot study could be used to form a larger study to encourage broad use of such a model.
Behavioral programming of autonomous characters based on probabilistic automata and personality: Research Articles
Authors: Luca Chittaro, Milena Serra
Venue: Computer Animation and Virtual Worlds (2004)

This paper presents a system for realistic behavioral programming of virtual characters, based on personality and probabilistic automata. We describe personality by using the Five-Factor Model and achieve autonomy through a goal-oriented approach. Each character perceives the surrounding world, decides how to behave and acts on the environment according to its personality and to its goals. The chief idea explored by the proposed approach is that personality has a probabilistic influence on behavior selection instead of a deterministic one. Different behavior sequences available to achieve a goal are modeled using probabilistic automata and making probability dependent on character personality. This leads to non-repetitive behaviors, whose evolution is not foreseeable. The paper first motivates the approach in the context of cybertherapy. Then, it summarizes related work and illustrates in detail the proposed approach. Finally, it presents obtained results and discusses the main limitations of the implemented system. Copyright &copy; 2004 John Wiley & Sons, Ltd.
Two local and one global properties of 3-connected graphs on compact 2-dimensional manifolds
Authors: S. Jendrol, H.-J. Voss
Venue: Journal of Combinatorial Theory Series B (2005)

Let g(M) be the family of all 3-connected graphs which can be embedded in a compact 2-manifold M with Euler characteristic χ(M) < 0. We have proved the following two results: 1. Each graph G ∈ g(M) having a k-path, a path on k-vertices, k≥4, contains a k-path Pk such that its maximum degree ΔG(Pk) in G satisfies ΔG(Pk) ≤ 2 + ⌊(6k - 6 - 2ε)(1 + |χ(M)|/3)⌋, where ε = 0 for even k and ε = 1 for odd k. This bound is best possible. 2. Each graph G ∈ g(M) of order at least k ≥ 5 contains a connected subgraph H of order k such that its maximum degree ΔG(H) satisfies ΔG(H) ≤ 2 + ⌊(4k - 2)(1 + |χ(M)|/3)⌋. This bound is best possible.The sharp values of ΔG(Pk) and ΔG(H) are determined for k ∈ {2, 3, 4} as well.
Dynamic and secure B2B e-contract update management
Authors: Samuil Angelov, Sven Till, Paul Grefen
Venue: Proceedings of the 6th ACM conference on Electronic commerce (2005)

Business-to-business electronic contracts provide a specification of the agreed value exchange and guarantee legal protection to companies during electronic trading relations. Important features that distinguish e-contracts from traditional paper contracts are the possibilities for automatic establishment and enactment, the more detailed e-contract content specification and the frequency of e-contract content updating. In this paper, we discuss these e-contract features and the technology requirements to which they lead. We describe two conceptual architectures for the support of updates in digitally signed e-contracts. We demonstrate that the straightforward approach is inefficient and therefore inadequate for supporting high update rates in an automated, dynamic, communication-intensive contract enactment environment. The second approach that we describe allows companies to handle e-contract updates in a more efficient and simplified manner. It introduces a new type of Trusted Third Party that can be used for the support of e-contract updates. This paper provides the required conceptual foundation for the construction of an important part of an e-contract management system.
A note on the AI tutorial at the ACM
Authors: Jaime Carbonell
Venue: Issue 81 (July 1982) (1982)

At the Los Angeles national ACM conference in November, 1981, SIGART sponsored a two-part All tutorial session. This note reports briefly on that session and outlines some useful pointers for anyone organizing future AI tutorials at ACM conferences. The AI tutorial was divided into two two-hour sessions: The ACM Portal is published by the Association for Computing Machinery. Copyright © 2010 ACM, Inc. Terms of Usage Privacy Policy Code of Ethics Contact Us Useful downloads: Adobe Acrobat QuickTime Windows Media Player Real Player
Force Sensors in Hexapod Locomotion
Authors: Sathya Kaliyamoorthy, Roger D. Quinn, Sasha N. Zill
Venue: International Journal of Robotics Research (2005)

Biological systems can provide useful insights into principles of design and control of locomotion that can be applied to legged robots. In this paper we review our work on cockroaches using finite element analysis to model how loads are sensed and regulated in walking and climbing. A number of biological studies have shown that sensors that detect forces in the legs of insects are of particular importance in controlling walking and adapting locomotion to non-horizontal terrains. Our analysis strongly suggests that (i) the system can detect specific force vectors (body load versus propulsion) via sensors located in the leg in positions close to the body and (ii) the system uses this information in positive load feedback to regulate walking movements. These principles and design elements provide examples that can be applied in legged locomotion in walking machines.
Phonological and visual working memory in processing of route guidance information
Authors: Patricia L. Trbovich
Venue: CHI '05 extended abstracts on Human factors in computing systems (2005)

The goal of my proposed thesis is to examine the role of working memory in processing route guidance information while driving. I will also assess how changes in the presentation and processing of route guidance and secondary task information influences the primary task of vehicle control. Results will be analyzed in terms of whether a change of route navigation presentation from visual to auditory will change the memory resources used to process the information. Furthermore, analyses will be done to assess whether changes in the processing of route navigation and secondary task information affect driving performance. To examine what working memory subsystems (i.e., phonological, visual, spatial, central executive) are used to process visual versus auditory route guidance information, the present research will require participants to drive a driving simulator while performing a route navigation task and a secondary working memory task. Performance of these secondary tasks will permit us to assess demands of route navigation tasks upon the various working memory subsystems. Accordingly, participants will retain a memory load while performing the route navigation tasks. This research is expected to raise significant HCI implications for the design of safer interfaces for vehicles and provide much needed detail about how specific mental codes and processes are involved in processing route navigation information.
The ESF Programme on Functional Genomics workshop on &lsquo;Data Integration in Functional Genomics: Application to Biological Pathways&rsquo;: Conference Editorials
Authors: Pierre-Alain Binz, Henning Hermjakob, Paul van der Vet
Venue: Comparative and Functional Genomics (2004)

We report from the second ESF Programme on Functional Genomics workshop on Data Integration, which covered topics including the status of biological pathways databases in existing consortia; pathways as part of bioinformatics infrastructures; design, creation and formalization of biological pathways databases; generating and supporting pathway data and interoperability of databases with other external databases and standards. Key issues emerging from the discussions were the need for continued funding to cover maintenance and curation of databases, the importance of quality control of the data in these resources, and efforts to facilitate the exchange of data and to ensure the interoperability of databases. Copyright &copy; 2004 John Wiley & Sons, Ltd.Reproduced by permission of the European Science Foundation
NFMi: An Inter-domain Network Fault Management System
Authors: Qingchun Jiang, Raman Adaikkalavan, Sharma Chakravarthy
Venue: Proceedings of the 21st International Conference on Data Engineering (2005)

Network fault management has been an active research area for a long period of time because of its complexity, and the returns it generates for service providers. However, most fault management systems are currently custom-developed for a particular domain. As communication service providers continuously add greater capabilities and sophistication to their systems in order to meet demands of a growing user population, these systems have to manage a multi-layered network along with its built-in legacy logical processing procedure. Stream processing has been receiving a lot of attention to deal with applications that generate large amounts of data in real-time at varying input rates and to compute functions over multiple streams, such as network fault management. In this paper, we propose an integrated inter-domain network fault management system for such a multi-layered network based on data stream and event processing techniques. We discuss various components in our system and how data stream processing techniques are used to build a flexible system for a sophisticated real-world application. We further identify a number of important issues related to data stream processing during the course of the discussion of our proposed system, which will further extend the boundaries of data stream processing.
Hybrid Learning Scheme for Data Mining Applications
Authors: T. Ravindra Babu, M. Narasimha Murty, V. K. Agrawal
Venue: Proceedings of the Fourth International Conference on Hybrid Intelligent Systems (2004)

Classification of large datasets is a challenging task in Data Mining. In the current work, we propose a novel method that compresses the data and classifies the test data directly in its compressed form. The work forms a hybrid learning approach integrating the activities of data abstraction, frequent item generation, compression, classification and use of rough sets.
An Interoperability Design Model: Lessons Learned in Computer Communication Standardization
Authors: Toshihiko Yamakami
Venue: Proceedings of the 19th International Conference on Advanced Information Networking and Applications - Volume 2 (2005)

Interoperability is one of the top priority issues in the computer communication standardizations. The computer communication protocol design becomes complicated in order to cover both of the communication parts and content parts. The content parts need more flexibility for the future evolution. The author uses the underlying assumptions, architectural aspects and processing model aspects in order to identify the protocol design strategy with lessons learned in the past. The author describes existing extensibility frameworks. Then the author proposes a logical model for architectural design and processing model selection. This model gives a measure to verify the overall consistency for the evolution-tolerant protocol design. The author compares the fits among the logical model components and the possible interoperability strategies.
Strategies and business models in electronic retailing: indications from the U.S. and the UK
Authors: Maria Madlberger
Venue: Proceedings of the 6th international conference on Electronic commerce (2004)

In e-commerce a large variety of business models for selling goods online has emerged. But most known approaches are focused on e-commerce in general and do not reflect characteristics of e-tailing. The objective of this paper is the development of a research framework and an empirical evaluation in order to analyze e-tail business models on behalf of retail functions. This framework is extended to multi-channel retailing, and is applied for an empirical study among 60 online shops of major U.S. and UK multi-channel retailers. The main findings of the website analysis show that two main approaches can be identified: there are retailers that focus on the pure shopping function of their online shops. In contrast, there are also players that enrich their online shops with additional functions such as information, communities, and service. In many cases a strong integration of online with store-based distribution channels can be shown.