ppxscal/embedding_network huggingface dataset:
A GENERIC FACE REPRESENTATION APPROACH FOR LOCAL APPEARANCE BASED FACE VERIFICATION
Authors: Hazim Kemal Ekenel, Rainer Stiefelhagen
Venue: Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Workshops - Volume 03 (2005)

In this paper we present the experimental results of a generic local appearance based face representation approach obtained from the first and fourth experiments of the Face Recognition Grand Challenge (FRGC) version 1 data. The introduced representation approach is compared with the baseline system with the standard distance metrics of L1 norm, L2 norm and cosine angle. The experimental results show that the proposed local appearance based approach provides better and more stable results than the baseline system -holistic Eigenfaces- approach.
A Method for Guaranteeing End-to-End Delay by Mutual Cooperation between IP Routers
Authors: Dai Yamamoto, Rie Fujita, Hideki Tode, Koso Murakami, Toshihiro Masaki
Venue: Proceedings of the The IEEE Conference on Local Computer Networks 30th Anniversary (2005)

Various real-time applications are widely used with the development of network infrastructure. To guarantee QoS(Quality of Service) of these applications strictly, the Internet will require a flow-based priority control. Thus, we have proposed an output buffer control mechanism. In this paper, to guarantee End-to-End QoS maximally by exploiting the buffer control mechanism, we propose the method of mutual cooperation between IP routers equipped with our mechanism by using one of the signaling protocols. In addition, we show the effectiveness of our proposal by computer simulation.
Adaptive PID Control Based on RBF Neural Network Identification
Authors: Ming-guang Zhang, Xing-gui Wang, Man-qiang Liu
Venue: Proceedings of the 17th IEEE International Conference on Tools with Artificial Intelligence (2005)

Radial Basis Function (RBF) neural network (NN) is powerful computational tools that have been used extensively in the areas of pattern recognition, systems modeling and identification. This paper proposes an adaptive PID control method based on RBF neural network identification. This approach can on-line identify the controlled plant with the RBF neural network identifier and the weights of the adaptive PID controller are adjusted timely based-on the identification of the plant and self-learning capability of RBFNN. Simulation result shows that the proposed controller has the adaptability, strong robustness and satisfactory control performance in the nonlinear and time varying system.
Timing analysis of high performance integrated circuits
Authors: Yehea I. Ismail
Venue:  (2005)

Performance gains in very large scale integrated (VLSI) circuits can be obtained in two ways&mdash;by using a better technology and/or by using novel design techniques. Both of these directions contribute a fair share to new research problems in timing analysis. Accurate timing models and their incorporation in gate and interconnect timing analysis tools is required to guarantee signal integrity and to obtain the performance gains associated with new technologies or design styles. Inaccurate models cannot be tolerated as they impose large error margins on designs, thereby nullifying the performance gains. The focal point of our research has been to develop new timing analysis techniques for improving performance verification of high performance VLSI circuits. The research work has covered linear circuits such as large and small RLCK interconnect networks as well as nonlinear circuits such as logic gates and sequential elements. A novel waveform model for improving the accuracy of gate delay prediction in static timing analysis has been developed. Moreover, a full methodology on modeling complex circuits such as unbuffered latches for timing analysis has been developed. Since variations in process, environment, and temperature have become very important, a simple path-based statistical static timing analysis algorithm has also been proposed. The algorithm models timing variations accurately for latest high-performance microprocessors. Techniques for interconnect circuit analysis have also been developed since large extracted interconnect netlists can often be the bottleneck in timing analysis. A simple method has been developed for calculating the times at which any interconnect signal crosses a pre-specified threshold voltage (e.g. 10%, 50%, 90%, etc.) directly from the frequency domain moments. A new class of methods for approximating complex output responses of RLCK interconnect netlists using piece-wise waveforms and only four to five frequency domain moments has also been developed. A technique to reduce large RLCK interconnect netlists has also been developed. The method's output is a reduced passive RLCK netlist which can be handled easily by any standard simulator or model order reduction technique.
Selective component-based rendering
Authors: Kurt Debattista, Veronica Sundstedt, Luis Paulo Santos, Alan Chalmers
Venue: Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia (2005)

The computational requirements of full global illumination rendering are such that it is still not possible to achieve high-fidelity graphics of very complex scenes in a reasonable time on a single computer. By identifying which computations are more relevant to the desired quality of the solution, selective rendering can significantly reduce rendering times. In this paper we present a novel component-based selective rendering system in which the quality of every image, and indeed every pixel, can be controlled by means of a component regular expression (crex). The crex provides a flexible mechanism for controlling which components are rendered and in which order. It can be used as a strategy for directing the light transport within a scene and also in a progressive rendering framework. Furthermore, the crex can be combined with visual perception techniques to reduce rendering computation times without compromising the perceived visual quality. By means of a psychophysical experiment we demonstrate how the crex can be successfully used in such a perceptual rendering framework. In addition, we show how the crex's flexibility enables it to be incorporated in a predictive framework for time-constrained rendering.
Optimization of Electronic Power Consumption in Wireless Sensor Nodes
Authors: S. Jayapal, S. Ramachandran, R. Bhutada, Y. Manoli
Venue: Proceedings of the 8th Euromicro Conference on Digital System Design (2005)

Due to the power limitation in wireless sensor nodes, special attention is required in optimizing the power consumption of the necessary electronics on a node. This can be done at different levels of abstraction, While architectural level optimization brings a major power reduction due to the fact that any changes made at this level of abstraction will be reflected back to the lower levels, all other levels must be also considered in an overall power reduction strategy. This paper discusses different possibilities of power reduction at system, architectural, and circuit level of the node¿s electronics. It also addresses different communication protocols and their effect on the power consumption of a wireless sensor node.
Group recommender systems: a critiquing based approach
Authors: Kevin McCarthy, Maria Salamó, Lorcan Coyle, Lorraine McGinty, Barry Smyth, Paddy Nixon
Venue: Proceedings of the 11th international conference on Intelligent user interfaces (2006)

Group recommender systems introduce a whole set of new challenges for recommender systems research. The notion of generating a set of recommendations that will satisfy a group of users, with potentially competing interests, is challenging in itself. In addition to this we must consider how to record and combine the preferences of many different users as they engage in simultaneous recommendation dialogs. In this paper we introduce a group recommender system that is designed to provide assistance to a group of friends trying to plan a skiing vacation.
Improving the Speed of Virtual Rear Projection: A GPU-Centric Architecture
Authors: Matthew Flagg, Jay Summet, James M. Rehg
Venue: Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Workshops - Volume 03 (2005)

Projection is the only viable way to produce very large displays. Rear projection of large-scale upright displays is often preferred over front projection because of the lack of shadows that occlude the projected image. However, rear projection is not always a feasible option for space and cost reasons. Recent research suggests that many of the desirable features of rear projection, in particular lack of shadows, can be reproduced using active virtual rear projection (VRP). We present a new approach to shadow detection that addresses limitations with previous work. Furthermore, we demonstrate how to exploit the image processing capabilities of a GPU to shift the main performance bottleneck from image processing to camera capture and projector display rates. The improvements presented in this paper enable a speed increase in image processing from 15Hz to 110Hz in our new active VRP prototype.
Analysis of factors affecting players' performance and perception in multiplayer games
Authors: Matthias Dick, Oliver Wellnitz, Lars Wolf
Venue: Proceedings of 4th ACM SIGCOMM workshop on Network and system support for games (2005)

In this paper we analyse different factors affecting players' perception and performance in multiplayer games. We introduce a mean opinion score metric borrowed from the subjective analysis of audio and video content to classify the player's perceived game quality. With a survey we investigated the player's view on network latency for a variety of games. Furthermore, we examine four different games under different network conditions and collect data on game score and subjective perception from every player. During the evaluation, we investigate the effect of latency and jitter on multiplayer games. We use regression analysis methods to identify coherences between delay, jitter, skill, game score, and the subjective impression of the player. Finally, we compare the results from the survey and the experiments.
A Gradient Based Weighted Averaging Method for Estimation of Fingerprint Orientation Fields
Authors: Yi Wang, Jiankun Hu, Heiko Schroder
Venue: Proceedings of the Digital Image Computing on Techniques and Applications (2005)

Estimation of orientation fields is an essential module in a fingerprint recognition system. Conventional gradient based approaches are popular but very sensitive to noise. In this paper, we propose a new implementation that is more resistant to noise. Our basic idea is to conduct redundant estimation over four overlapping neighborhoods for each target block. Following this idea, we devise a weighted averaging scheme operated on the base blocks directly. Thus, each block (including the target one) in the overlapping neighborhoods has different impact on estimation of the dominant orientation fields. Our preliminary experiment results suggest that the proposed weighted averaging algorithm is more robust against noise in comparison with other gradient based methods.
The grid core technologies
Authors: Maozhen Li, Mark Baker
Venue:  (2005)

This invaluable text provides a complete, clear, systematic, and practical understanding of the technologies that enable the Grid. The authors outline all the components necessary to create a Grid infrastructure that enables support for a range of wide-area distributed applications. The Grid: Core Technologies takes a pragmatic approach with numerous practical examples of software in context. It describes the middleware components of the Grid step-by-step, and gives hands-on advice on designing and building a Grid environment with the Globus Toolkit, as well as writing applications
Application Layer Error Correction Scheme for Video Header Protection on Wireless Network
Authors: Chia-Ho Pan, I-Hsien Lee, Sheng-Chieh Huang, Chih-Chi Cheng, Chung-Jr Lian, Liang-Gee Chen
Venue: Proceedings of the Seventh IEEE International Symposium on Multimedia (2005)

In wireless video streaming application, video information may be corrupted by a noisy channel. By introducing error resilience and error concealment techniques, many researchers have tried to eliminate quality degradation of reconstructed picture in decoding a corrupted data. On the contrary, there are relatively fewer works discussing the ways to diminish the corruption. Hence, system designers need to use different methods to restrict the error cause by channel within a tolerable extent. In other words, the system will be difficult to be implemented in practical design. In this paper, we propose a way to protect the video header information in application layer without modifying standardized syntax. Beside, we also consider channel condition of wireless transmission and propose a way to reduce redundant bits used in channel coding. By doing this, the bitstream can be simply transmitted over practical wireless network and the reconstructed picture quality outperforms the original one.
Optimizing Referential Coherence in Text Generation
Authors: Rodger Kibble, Richard Power
Venue: Computational Linguistics (2004)

This article describes an implemented system which uses centering theory for planning of coherent texts and choice of referring expressions. We argue that text and sentence planning need to be driven in part by the goal of maintaining referential continuity and thereby facilitating pronoun resolution: Obtaining a favorable ordering of clauses, and of arguments within clauses, is likely to increase opportunities for nonambiguous pronoun use. Centering theory provides the basis for such an integrated approach. Generating coherent texts according to centering theory is treated as a constraint satisfaction problem. The well-known Rule 2 of centering theory is reformulated in terms of a set of constraints&mdash;cohesion, salience, cheapness, and continuity&mdash;and we show sample outputs obtained under a particular weighting of these constraints. This framework facilitates detailed research into evaluation metrics and will therefore provide a productive research tool in addition to the immediate practical benefit of improving the fluency and readability of generated texts. The technique is generally applicable to natural language generation systems, which perform hierarchical text structuring based on a theory of coherence relations with certain additional assumptions.
Life-Inspired Systems: Assuring Quality in the Era of Complexity, invited
Authors: Lech Jozwiak
Venue: Proceedings of the Fifth International Workshop on System-on-Chip for Real-Time Applications (2005)

The recent spectacular progress in modern microelectronics that enabled implementation of a complete complex system on a single chip created new important opportunities, but also new serious difficulties. This paper aims at a brief analysis of the situation, trends and problems in the field of the modern microelectronic-based systems, and discussion of the paradigms of life-inspired systems and quality-driven design that seem to be adequate to overcome the difficulties.
Development of Quantitative Cost and Schedule Risk Analysis Process
Authors: Kelly D. Moses, Stephan F. Hooker
Venue: Proceedings of the 18th International Conference on Systems Engineering (2005)

This paper describes a quantitative probabilistic risk analysis process able to reveal how one or more cost and/or schedule risks, mapped to any or all linked tasks of a complex integrated master project schedule network, impact a project or program described by the schedule. Technical and programmatic risks are formulated in terms of the salient features that can possibly go wrong and expressed as probabilistic distributions representing the likelihood of occurrence and impact (cost and/or time). The authors have employed a software product called "GoldPan" to accomplish this. They have successfully used it for NASA projects, as well as the U.S. Navy and the National Reconnaissance Office. It is currently being prepared for another NASA project. The paper presents each step of the process from collaborating with the customer/decision maker, mapping risks to tasks, running the simulation, to presenting results to decision makers. From it earliest application to now, this risk analysis process is constantly being refined and improved in parallel with continuing refinement and improvement of GoldPan made by it's developer, Decision Mining. This paper also discusses approaches being considered to provide automated ways to integrate technical risk parameters, which will further the utility of this process and tool.
Compressed High Definition Television (HDTV) over IPv6
Authors: Joonbok Lee, Kilnam Chon
Venue: Proceedings of the International Symposium on Applications on Internet Workshops (2006)

In this paper, we introduce the compressed HDTV over IPv6 system, applications, and its experiment in IPv6 network between Korea and China. We developed the compressed HDTV over IPv6 system which requires 20∼25Mbps with MPEG2. The system use 720/30p or 1080i HDTV format and support IPv4/IPv6 and unicast/multicast. The compressed HDTV system provides high quality audio and video with relatively small bandwidth comparing with uncompressed HDTV system, but it suffers about 1 second delay for MPEG2 encoding and decoding. Its high quality video and audio enables applications such as remote lecture/seminar with limited interaction. Using compressed HDTV system, we had two-way experiment which requires 40∼50Mbps bandwidth in Gigabit IPv6 network in dual stack mode. This paper contains brief experiment result including jitter and packet loss. We expect practical application of compressed HDTV system such as remote lecture and seminar between Korea and China.
Privacy Rights and Protection: Foreign Values in Modern Thai Context
Authors: Krisana Kitiyadisai
Venue: Ethics and Information Technology (2005)

The concept of privacy as a basic human right which has to be protected by law is a recently adopted concept in Thailand, as the protection of human rights was only legally recognized by the National Human Rights Act in 1999. Moreover, along with other drafted legislation on computer crime, the law on privacy protection has not yet been enacted. The political reform and the influences of globalization have speeded up the process of westernization of the urban, educated middle-class professionals. However, the strength of traditional Thai culture means that a mass awareness of the concept of privacy rights remains scarce. This paper explicates the Thai cultural perspective on privacy and discusses the influence of Buddhism on privacy rights, including the impacts of globalization and the influence of Western values on the country's political and legal developments. The paper also discusses the legal provisions regarding privacy protection, and the debates on the smart ID cards policy and SIM cards registration for national security.
3D Chip Stack Technology Using Through-Chip Interconnects
Authors: Peter Benkart, Alexander Kaiser, Andreas Munding, Markus Bschorr, Hans-Joerg Pfleiderer, Erhard Kohn, Arne Heittmann, Holger Huebner, Ulrich Ramacher
Venue: IEEE Design Test (2005)

A key enabler for 3D technologies is the ability to stack chips and buildinterconnects that connect circuitry in different layers of the stack. This articlepresents a technology overview of how to achieve this goal in a 3D fabricationprocess. It also shows measurements for characterizing these interconnects.
The Two-Point Codes on a Hermitian Curve with the Designed Minimum Distance
Authors: Masaaki Homma, Seon Jeong Kim
Venue: Designs, Codes and Cryptography (2006)

This is the second part of the series of papers devoted to the determination of the minimum distance of two-point codes on a Hermitian curve. We study the case where the minimum distance agrees with the designed one. In order to construct a function which gives a codeword with the designed minimum distance, we use functions arising from conics in the projective plane.
Multi-Level Security Requirements for Hypervisors
Authors: Paul A. Karger
Venue: Proceedings of the 21st Annual Computer Security Applications Conference (2005)

Using hypervisors or virtual machine monitors for security has become very popular in recent years, and a number of proposals have been made for supporting multi-level security on secure hypervisors, including PR/SM, NetTop, sHype, and others. This paper looks at the requirements that users of MLS systems will have and discusses their implications on the design of multi-level secure hypervisors. It contrasts the new directions for secure hypervisors with the earlier efforts of KVM/370 and Digital's A1-secure VMM kernel.
Self-Regulating Network Utilization in Mobile Ad-HocWireless LANs
Authors: Song Ci, Mohsen Guizani, Hamid Sharif
Venue: Proceedings of the Second International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks (2005)

Self-regulating network utilization is very important to the wireless network service providers to carry out new services such as wireless network gaming, which means that more users with a prepaid level of Quality of Service can be accommodated in a bandwidth limited network. However, in mobile ad-hoc wireless LANs, it is very difficult to regulate network utilization due to the time-varying nature of many important system parameters such as network load and channel quality. Moreover, the contention-based MAC protocols such as CSMA/CA adopted by IEEE 802.11 standard have been widely deployed in a wireless LAN environment for its flexibility, making self-regulating network utilization even more difficult. In this paper, we have proposed a fully distributed scheme running on each wireless station for self-regulating its network utilization to meet its prepaid service level. Simulation results show that the proposed scheme allows a wireless station to self-regulate the network utilization to its prepaid service level as close as possible by adapting the system parameters of MAC and PHY layers with changes of network environment such as the number of users and channel quality.
A Voronoi-Trajectory Based Hybrid Routing (VTBR) Algorithm for Wireless Ad Hoc Networks with Obstacles
Authors: Wu Di, Qu Yan, Chi Zhongxian
Venue: Proceedings of the Sixth International Conference on Parallel and Distributed Computing Applications and Technologies (2005)

Position based routing methods can construct effective routes; however, in some topologies with obstacles, such algorithms may end in failure. In order to avoid stationary obstacles, this paper presents a Voronoi-trajectory based hybrid routing (VTBR) algorithm that combines both proactive and reactive routing strategies to provide high routing performance. If the destination node is within the source node's two-hop range, then the source will consult the routing table to determine the route. When the destination is beyond that range, the source establishes a trajectory which is the set of points of the shortest obstacle-avoiding path. The intermediate nodes take the forwarding decision based on the relationship to the trajectory. Eventually, an example and simulation experiments are conducted to validate and evaluate the performance of VTBR. Our simulation results show that the proposed algorithm makes it possible to successfully construct the routes.