ppxscal/embedding_network huggingface dataset:
Disappearing Computers, Social Actors and Embodied Agents
Authors: Anton Nijholt
Venue: Proceedings of the 2003 International Conference on Cyberworlds (2003)

Presently, there are user interfaces that allowmultimodal interactions. Many existing research andprototype systems introduced embodied agents, assumingthat they allow a more natural conversation or dialoguebetween user and computer. Here we will first take a lookat how in general people react to computers. We will lookat some of the theories, in particular the CASA("Computers Are Social Actors") paradigm, and thendiscuss how new technology, for example ambientintelligence technology, needs to anticipate the need ofhumans to build up social relationships. One way toanticipate is to do research in the area of socialpsychology, to translate findings there to the human-computersituation and to investigate technologicalpossibilities to include human-human communicationcharacteristics in the interface. For that reason we willdiscuss embodied conversational agents, the role they canplay in human-computer interaction (in face-to-faceconversation), in ambient intelligence environments andin virtual communities.
Automatic generation of hypergeometric identities by the beta integral method
Authors: C. Krattenthaler, K. Srinivasa Rao
Venue: Journal of Computational and Applied Mathematics (2003)

In this article, hypergeometric identities (or transformations) for p+1Fp-series and for Kampé de Fériet series of unit arguments are derived systematically from known transformations of hypergeometric series and products of hypergeometric series, respectively, using the beta integral method in an automated manner, based on the Mathematica package HYP. As a result, we obtain some known and some identities which seem to not have been recorded before in literature.
Random Star Processes
Authors: H. D. Robalewska, N. C. Wormald
Venue: Combinatorics, Probability and Computing (2000)

A type of evolution of graphs with maximum vertex degree at most d is introduced. This evolution can start from any initial graph whose set of vertices of degree less than d is independent. The main concern is the regularity of graphs generated by this graph process when the initial graph has no edges. By analysis of the solutions of systems of differential equations it is shown that the final graph of this evolution is asymptotically almost surely a d-regular graph (subject to the usual parity condition).
IEEE 1149.1 Based Defect and Fault Tolerant Scan Chain for Wafer Scale Integration
Authors: Meng Lu, Yvon Savaria, Bing Qiu, Jacques Taillefer
Venue: Proceedings of the 18th IEEE International Symposium on Defect and Fault Tolerance in VLSI Systems (2003)

This paper presents an IEEE 1149.1 based defect and fault tolerant scan chain usable for testing and configuring large area and wafer scale integrated systems. It uses the Triple Modular Redundancy (TMR) approach to tolerate defects on critical portions of IEEE1149.1 circuitry. By a suitable distribution of sensitive circuits, failures on power, clock (TCK) and control signals (TMS and nTRST) can be tolerated. Some implementation issues, such as layout regularity and timing are discussed. The yield analysis shows that a basic IEEE 1149.1 scan chain can be a significant yield detractor, and its impact on yield is much larger than the small fraction of the total area it occupies. By contrast, the proposed fault tolerant scan chain maintains a high yield for realistic chain size.
Bayes&ndash;Nash Equilibrium: Infinite-Depth Point Information Structures
Authors: A. G. Chkhartishvili
Venue: Automation and Remote Control (2003)

The notion of Bayes&ndash;Nash equilibrium in a game with point hierarchy of mutual beliefs of players about an uncertain parameter was introduced. Finiteness of the depth of the game information structure was shown to play the key role: conditions were presented under which any action in the two-person game is equilibrium if the depth is infinite.
Acquiring advanced engineering technologies under conditions of performance improvement
Authors: Roger J. Gagnon, Chwen Sheu
Venue: Computers and Industrial Engineering (2003)

To remain competitive, firms need to develop long-term strategies for acquiring and using advanced engineering and manufacturing technologies. In addition, technology managers are under increasing pressure to produce better results, with less time and risks, and with fewer resources. A resulting trend is a greater use of external relationships and resources to achieve the needed technological accomplishments with greater efficiency. However, there are numerous alternatives for obtaining internally and/or externally the personnel and equipment components of advanced technologies. A mathematical model which identifies the optimal means for acquiring the components for advanced engineering technology requirements, allows the engineering technology resources to be internal or external to the firm, and allows the personnel and equipment to have realistic nonlinear performance improvement (learning) or decay capabilities should be of interest and use to both technology management researchers and practicing engineering/technology managers. The nonlinear integer programming model described herein provides this capability. A comprehensive and realistically based example problem is provided and an optimal solution is obtained and compared with the results of more common, but also more expensive, solutions. Numerous future research extensions are offered.
Affective content detection using HMMs
Authors: Hang-Bong Kang
Venue: Proceedings of the eleventh ACM international conference on Multimedia (2003)

This paper discusses a new technique for detecting affective events using Hidden Markov Models(HMM). To map low level features of video data to high level emotional events, we perform empirical study on the relationship between emotional events and low-level features. After that, we compute simple low-level features that represent emotional characteristics and construct a token or observation vector by combining low level features. The observation vector sequence is tested to detect emotional events through HMMs. We create two HMM topologies and test both topologies. The affective events are detected from our proposed models with good accuracy.
Self-configuring localization systems: Design and Experimental Evaluation
Authors: Nirupama Bulusu, John Heidemann, Deborah Estrin, Tommy Tran
Venue: ACM Transactions on Embedded Computing Systems (TECS) (2004)

Embedded networked sensors promise to revolutionize the way we interact with our physical environment and require scalable, ad hoc deployable and energy-efficient node localization/positioning.This paper describes the motivation, design, implementation, and experimental evaluation (on sharply resource-constrained devices) of a self-configuring localization system using radio beacons. We identify beacon density as an important parameter in determining localization quality, which saturates at a transition density. We develop algorithms to improve localization quality by (i) automating placement of new beacons at low densities (HEAP) and (ii) rotating functionality among redundant beacons while increasing system lifetime at high densities (STROBE).
An integrated, secured, open-source medical prototype for collaborative patient management on the internet
Authors: John Scigliano
Venue:  (2003)

Conventional approaches to building critical and secured systems are based on the use of commercial tools for development and maintenance. Changes in the marketplace and the acceptance of the open-source model have brought this assumption into question. The combination of open-source's rapid rise and the introduction of pervasive computing has made the computing industry more receptive to open-source tools and products. The open-source model allows systems to be controlled by a single individual or a small developer group that reduces dependence on individual experts. The availability of free system source codes, an expanding commercial support market, and increasing global collaborative projects makes open-source an important development in the computing environment and an exciting innovation in software engineering. Open-source projects require a level of modeling to successfully implement a solution. This study implemented a Web application prototype that models medical business logic and state that is secured. The researcher adopted the object-oriented design methodology and prototyping that improved security and lowered overall development cost. The open-source community had played an increasingly significant role in the business plans of established computing companies, in university research labs, and in the development of new companies focused on open-source support and integration issues. The openness of the Internet presents both system development and privacy issues. The availability of free tools and instructions on how to compromise systems is alarming within the online community. Thus, open-source security tools are helping protect people's privacy by enforcing authentication, confidentiality, and information integrity to prevent unauthorized access. Open-source growth motivated this research to develop a medical prototype for online collaboration. Open-source tools including PHP, MySQL, Apache Web Server, and the Linux operating system were used to develop the secured application through prototyping. The main contribution of this study is that it demonstrated the exclusive use of open-source software and tools for an online application. The researcher hypothesized that open-source tools like PHP, MySQL, XML, and LINUX are the answer to building dynamic multi-tiers and cost effective systems faster. The research also explored major tools available for open-source software development.
A user-assisted approach to component clustering
Authors: Kamran Sartipi, Kostas Kontogiannis
Venue: Journal of Software Maintenance: Research and Practice (2003)

In this paper, we present a user-assisted clustering technique for software architecture recovery based on a proximity measure that we call component association. The component association measure is computed on the shared properties among groups of highly related system entities. In this approach, the software system is modeled as an attributed relational graph with the software constructs (entities) represented as nodes and data/control dependencies represented as edges. The application of data mining techniques on the system graph allows us to generate a component graph where the edges are labeled by the association strength values among the components. An interactive partitioning technique is used to partition a system into cohesive components. Graph visualization tools and cluster quality evaluation metrics are applied by the user to assess and fine tune the partition result.
Designing inner hood panels through a shape grammar based framework
Authors: Jay P. McCormack, Jonathan Cagan
Venue: Artificial Intelligence for Engineering Design, Analysis and Manufacturing (2002)

A framework for a design tool based on shape grammars is presented as an effective means for supporting the early stages of design. The framework uses a shape grammar interpreter to implement parametric shape grammars, allowing the grammar to be used interactively by a designer or optimization routine. A shape grammar to design inner hood panels of vehicles is introduced as an example of a parametric engineering shape grammar, and it is used with the framework to create standard and novel designs made possible by rules that take advantage of shape emergence.
Teaching technology for community
Authors: E. R. Jessup
Venue: Managing IT in government business & communities (2003)

Technology for Community is an undergraduate computer science course taught at the University of Colorado under the auspices of the Institute for Women and Technology's Virtual Development Center. In the course, students use computers to do community service. More specifically, they work with local community service agencies, building computational solutions to problems confronting those agencies. Student projects are developed following the method of task-centered design and are evaluated by the students and the users according to three formal methods. In this chapter, we describe in detail the content of the course and review the design and evaluation methods we use.
An Assessment of GSM/GPRS Link in a Navigation System for Visually Impaired Pedestrians
Authors: Z. Hunaiti, V. Garaj, W. Balachandran, F. Cecelja
Venue: Proceedings of the 14th International Conference on Electronics, Communications and Computers (2004)

This paper presents the results of performanceassessment, which was carried out to evaluate thesuitability of GSM and GPRS mobile communicationlinks for application in a system for navigation ofvisually impaired pedestrians.
Fast Parallel FFT on a Reconfigurable Computation Platform
Authors: Amir H. Kamalizad, Chengzhi Pan, Nader Bagherzadeh
Venue: Proceedings of the 15th Symposium on Computer Architecture and High Performance Computing (2003)

This paper presents implementation of a very fast parallel complex FFT on M2, the second generation of MorphoSys Reconfigurable computation platform, which is targeting on streamed applications such as multimedia and DSP. The proposed mapping comprises fast presorting, cascaded radix-2 stages, and post-reordering. Data and twiddle factors are 16-bit real and 16-bit imaginary in 2's complement format and scaling is performed to avoid overflow. The mapping is tested on our cycle-accurate simulator, "Mulate", and the performance is encouragingly better than other architectures such as Imagine and VIRAM. Moreover, the performance is scalable according to FFT sizes. Since there is no functionality specifically tailored to FFT, the results demonstrate the capability of MorphoSys architecture to extract parallelism from streamed applications. Further rationales are given based on the concepts of scalar operand networks and memory hierarchy.
Feasibility of closed-loop target controlled infusion of intravenous anaesthesia
Authors: J. Roca,  Jr., J. Roca, J. Martinez, F. J. Martinez, F. J. Gil, J. A. Alvarez-Gomez
Venue: Proceedings of the international conference on Computational methods in sciences and engineering (2003)

One of the mayor problems that clinical anesthesiologists face up within their everyday practice is related to intraoperative patient awareness. The sedation level that prevents these incidents should be granted by proper drug administration and dosing procedures. This paper presents the results of a feasibility study of a closed-Icop controller for target controlled infusion of intravenous anaesthesia based upon different in-silico experiments.
eGaLab - a New Dimension for Artists
Authors: Michal Masa, Jiří Žára, Pavel Smetana
Venue: Proceedings of the 2003 International Conference on Cyberworlds (2003)

There is a kind of misunderstanding between thecommon way of art presentation in galleries andmuseums and the very emerging artistic forms, directly onelectronic media (e.g. net art or virtual sculpture).Though the galleries and museums are getting on-linethese days, still they treat the artists and artworks in anold-fashioned way. Even the progressive net-galleries arefounded just on a simple point & click navigation which ishostile to both artists and audience.eGaLab (electronic gallery and laboratory) for virtualart reflects today's status under which the artists createand present their artworks. It introduces an intuitiveapproach in the field of virtual environments andcommunities oriented to visual arts and artisticcollaboration. eGaLab combines and transforms theadvantages of collaborative virtual environments with thetraditional aspects of artistic creation and presentation.In this paper we describe architecture of the eGaLabplatform. We describe its networking part based on aconcept of General Variables (GV) and discuss severalimplementation issues related to its specific character.
A grassroots approach to teacher training: the Oregon council for computer education
Authors: Tim G. Kelley
Venue: ACM SIGCUE Outlook (1975)

The paper discusses factors contributing to the problem of preparing present and future teachers to accept and become skilled in the use of computers in the instructional process, and the obstacles to achieving a solution.The unique organizational activities of the Oregon Council for Computer Education are presented as a possible solution mechanism. The Council is described as a collective effort to work toward solutions of the many facets of the problem in a coordinated way statewide. The history and structure of the organization are presented, pitfalls described, and some of the accomplishments to date mentioned.
CLSS: An Intelligent Crane Lorry Scheduling System
Authors: Hon Wai Chun, Rebecca Y. M. Wong
Venue: Applied Intelligence (2004)

Companies that provide crane-lorry services are faced with the daily need to perform vehicle and driver allocation and scheduling. Many companies still do this manually due to the lack of suitable technologies. This manual approach is both time consuming and inaccurate and most probably will not lead to an optimized plan that can reduce operational costs. In this paper, we describe the design of a system called &ldquo;Crane Lorry Scheduling System&rdquo; (CLSS) that we have developed for the largest crane lorry company in Hong Kong. A crane lorry company is a company that provides lorries with different types of mounted crane equipment and drivers to service different types of moving and lifting jobs. CLSS is a Web-based application that streamlines communication with customers, subcontractors and employees/lorry drivers. We modeled the lorry-assignment problem as a constraint-satisfaction problem (CSP) algorithm, which we call the &ldquo;Crane Lorry Optimizing Engine&rdquo; (CLOE). CLOE was designed to be easily customizable to match the needs and requirements of different crane lorry companies. We experimented with two versions of CLOE, regular CLOE that finds &ldquo;best&rdquo; solutions and X-CLOE that finds &ldquo;optimal&rdquo; solutions. Results from our tests show that CLOE is faster and generates better quality plans than the manual approach.
Topology optimization for application-specific networks-on-chip
Authors: Tapani Ahonen, David A. Sigüenza-Tortosa, Hong Bin, Jari Nurmi
Venue: Proceedings of the 2004 international workshop on System level interconnect prediction (2004)

Compared to the well understood macro networks, networks-on-chip introduce novel design challenges. The characteristics of the system data flows and the knowledge of the required wire lengths can be exploited to optimize for speed and power consumption. A component library for flexible construction of interconnection architectures is being developed at the Tampere University of Technology to enable the creation of application development platforms. The overall design flow of these development platforms is reviewed in this paper. Network-on-chip topology optimization is addressed by describing the methodologies used by an effective design automation tool. The detailed cost functions of the tool capture the factors contributing to the speed and power consumption of asynchronous interconnections, while different abstraction level input information is supported. A case study into the application domain of industrial process control and monitoring is presented in order to evaluate the result quality.
A Low Power Architecture for HASM Motion Tracking
Authors: Wael Badawy, Magdy Bayoumi
Venue: Journal of VLSI Signal Processing Systems (2004)

This paper proposes low power VLSI architecture for motion tracking that can be used in online video applications such as in MPEG and VRML. The proposed architecture uses a hierarchical adaptive structured mesh (HASM) concept that generates a content-based video representation. The developed architecture shows the significant reducing of power consumption that is inherited in the HASM concept. The proposed architecture consists of two units: a motion estimation and motion compensation units.The motion estimation (ME) architecture generates a progressive mesh code that represents a mesh topology and its motion vectors. ME reduces the power consumption since it (1) implements a successive splitting strategy to generate the mesh topology. The successive split allows the pipelined implementation of the processing elements. (2) It approximates the mesh nodes motion vector by using the three step search algorithm. (3) and it uses parallel units that reduce the power consumption at a fixed throughput.The motion compensation (MC) architecture processes a reference frame, mesh nodes and motion vectors to predict a video frame using affine transformation to warp the texture with different mesh patches. The MC reduces the power consumption since it uses (1) a multiplication-free algorithm for affine transformation. (2) It uses parallel threads in which each thread implements a pipelined chain of scalable affine units to compute the affine transformation of each patch.The architecture has been prototyped using top-down low-power design methodology. The performance of the architecture has been analyzed in terms of video construction quality, power and delay.
Performance of Up-link MC-CDMA System with Frequency Offset and Imperfect Channel Estimation Simultaneously over Nakagami Fading Channels
Authors: Yawpo Yang, Shu-Li Jong, Ji-Chyun Liu, Ching-Hwa Liu
Venue: Wireless Personal Communications: An International Journal (2003)

In this paper, effects of carrier frequency offset on performance of uplink MC-CDMA (Multi-Carrier Code Division Multiple Access) system in Nakagami fading channel are investigated through the theoretical analysis and Monte Carlo computer simulations. Both perfect maximal-ratio combining (MRC) and equal gain combining (EGC) receivers are analyzed; the impact of imperfect channel fading estimation on the performance of MRC is also explored. The performance of MC-CDMA system is also compared with that of the conventional single-carrier DS-CDMA system. Our results indicate that the performance of MC-CDMA system is sensitive to even small values of carrier frequency offset and that the performance of MC-CDMA system improves as number of subcarriers increases. In perfect channel fading estimation, the overall performance of MRC is superior to EGC. However, when imperfect or inaccurate channel fading estimation exists, which leads to serious performance degradation, EGC becomes superior to MRC.
Reliability Review of North American Gas/Electric System Interdependency
Authors: Philip A. Fedora
Venue: Proceedings of the Proceedings of the 37th Annual Hawaii International Conference on System Sciences (HICSS'04) - Track 2 - Volume 2 (2004)

This paper summarizes reliability analyses of Gas/Electric system interdependency performed in the Northeast, as well as report on the status of North American investigations by the NERC Gas/Electric Interdependency Task Force.The majority of new generation proposed for North America relies natural gas as its primary fuel. While adequate supplies of natural gas have been forecast, the adequacy of the existing and proposed gas pipeline infrastructure to deliver the fuel to the gas-fired generating units depends on several factors. Reliability standards for the North American interconnected electric transmission systems require that they be planned and operated to reliably respond to first contingency electrical events. The lack of similar standards for the North American gas transportation systems has prompted a regional investigation of the adequacy of the North American gas pipeline infrastructure to reliably supply gas for gas-fired generation under single pipeline contingencies, as well as reliably withstanding major electrical contingencies. Upon the sudden loss of electric generation, the response of the gas delivery system may prevent other gas-fired generation from remaining on-line or fully responding to the electrical contingency.