ppxscal/embedding_network huggingface dataset:
Automatic discovery of relationships across multiple network layers
Authors: Andrew Turner, Hyong. S. Kim, Tina Wong
Venue: Proceedings of the 2007 SIGCOMM workshop on Internet network management (2007)

As networks become increasingly large and complex the relationships and dependencies between network elements also grow in complexity and size. If an e-mail server goes off-line for ten minutes but never goes off-line again, it might not be a serious problem, and can be forgotten about. But if the e-mail server repeatedly goes off-line, the cause of the problem must be found. The difficulty for network operators is discovering what causes the problem -- we address this issue and formalize a method to make event logs more useful to network operators. In this paper we describe how network events can be correlated across multiple network layers, and utilize the temporal and spatial aspects of the event data to more accurately correlate network events than using the event descriptions alone. Our results show that by statistically analyzing Syslog data, a relationship graph can be automatically generated that shows relationships between network elements. We then go on to discuss how such a relationship graph, in combination with event correlation, can help operators more accurately discover the root cause of problems, and identify hidden relationships and dependencies within their networks.
A Double Level Granularity for Multimedia on Demand System
Authors: Xiaoguang Liu, Gang Wang, Jing Liu
Venue: Proceedings of the Eighth ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing - Volume 02 (2007)

Multimedia on demand, such as VoD and AoD, has popularized with the development of network technology in these years. The storage system of multimedia on demand has some special requirements. A new double level granularity for storage devices is presented in this paper. It integrates the virtues of coarse granularity and fine granularity. It's a good tradeoff between coarse and fine granularity.
Global States of a Distributed System
Authors: M. J. Fischer
Venue: IEEE Transactions on Software Engineering (1982)

A global state of a distributed transaction system is consistent if no transactions are in progress. A global checkpoint is a transaction which must view a globally consistent system state for correct operation. We present an algorithm for adding global checkpoint transactions to an arbitrary distributed transaction system. The algorithm is nonintrusive in the sense that checkpoint transactions do not interfere with ordinary transactions in progress; however, the checkpoint transactions still produce meaningful results.
Machine-Vision-Based Measurement of BGA Connector Solder Balls
Authors: Gao Jun
Venue: Proceedings of the Eighth ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing - Volume 02 (2007)

This article presents the principle and application of a machine-vision-based method of measuring the quality of solder balls on BGA devices. The method first acquires two images of a BGA connector respectively with the same light source but different light angles, obtains from the two images the information on surfaces of solder balls and calculates the chief quality parameters of the solder balls in the end. The main algorithm measuring the solder balls is given in the article.
The Next Three Generations
Authors: C. C. Foster
Venue: Computer (1972)

In the beginning there was ENIAC. Then there was the 650, then the 7090 and then the 360. By any reasonable mathematics that makes four generations, but by judicious use of zero- origin indexing, we can come out with the present day machinery belonging to the third generation. In this paper, we will try to look at the next three generations of computers.
A Bio-Inspired Method of E-Service Emergence Based on the Bio-Network
Authors: Hongbin Sun, Yongsheng Ding
Venue: Proceedings of the Third International Conference on Natural Computation - Volume 04 (2007)

An emergence modeling approach is proposed to the study of e-service composition, which is inspired by the characteristics of emergence and self-evolution in biological neuroendocrine and immune system. E-services are represented by autonomous bio-entities (mobile agents with biological operation), each bio-entity is described as a Mealy state machine. The e-service composition was achieved by the evolution of the bioentities. The characteristic coding, which included relation matrix coding and QoS matrix coding, was applied to the negotiation of the bio-entities, the optimization of the e-service composition is translated into constraints optimization problem. The simulation results show that the approach can significantly improve the e-service composition performance. It adapts well to the changes of dynamic environments.
Optimal design of uniform rectangular antenna arrays for strong line-of-sight MIMO channels
Authors: Frode Bøhagen, Pål Orten, Geir Øien
Venue: EURASIP Journal on Wireless Communications and Networking (2007)

We investigate the optimal design of uniform rectangular arrays (URAs) employed in multiple-input multiple-output communications, where a strong line-of-sight (LOS) component is present. A general geometrical model is introduced to model the LOS component, which allows for any orientation of the transmit and receive arrays, and incorporates the uniform linear array as a special case of the URA. A spherical wave propagation model is used. Based on this model, we derive the optimal array design equations with respect to mutual information, resulting in orthogonal LOS subchannels. The equations reveal that it is the distance between the antennas projected onto the plane perpendicular to the transmission direction that is of importance with respect to design. Further, we investigate the influence of nonoptimal design, and derive analytical expressions for the singular values of the LOS matrix as a function of the quality of the array design. To evaluate a more realistic channel, the LOS channel matrix is employed in a Ricean channel model. Performance results show that even with some deviation from the optimal design, we get better performance than in the case of uncorrelated Rayleigh subchannels.
The Testing Process - A Decision Based Approach
Authors: Lars Borner, Timea Illes-Seifert, Barbara Paech
Venue: Proceedings of the International Conference on Software Engineering Advances (2007)

Software processes often focus on artifacts, activities and roles, treating decisions to be made during the software development process only implicitly. However, awareness of these decisions increases their quality by forcing the decision-makers to search for alternatives and to trade off between them. In this paper, we propose a decision hierarchy for the testing process. This hierarchy comprises all decisions made during testing and reflects dependencies between them. Additionally, we present the results of four case studies to which we applied this decision hierarchy.
A perspective on myocardial contractility
Authors: Joseph L. Palladino, Sina Y. Rabbany, Jan P. Mulier, Abraham Noordergraaf
Venue: Technology and Health Care (1997)

Myocardial contractile properties form the cornerstone of the heart&rsquo;s ability to pump blood. Efforts have been made to characterize these properties via classic elasticity theory concepts, which can lead to spurious results, as demonstrated by experiments measuring intramyocardial pressure. Two ways out of these difficulties are identified. One is to start at the cellular level, the other at the chamber level. The latter allows separation of ventricle (source) and arterial (load) effects on measured pressure and flow, distinct from previous definitions of ventricular contractility which tended to lump the two.
Starting and Maintaining a Computer-Aided Design System
Authors: R. E. Hursh
Venue: IEEE Computer Graphics and Applications (1982)

The Case history of CAD implementation at an international Harvester Facility Provides Useful guidelines for other companies planning such installations. 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
Trust-based Distributed Authentication Middleware in Ubiquitous Mobile Environments
Authors: Mingwu Zhang, Bo Yang, Shenglin Zhu, Wenzheng Zhang
Venue: Proceedings of the Third International Conference on Natural Computation - Volume 05 (2007)

To guard against malicious attack from mobile middleware, application should incorporate suitable control mechanisms, such as access control, authentication policy etc. Distributed trust management is a flexible way to manage nodes' security control in distributed environments. In this paper, we present the design of a new security mobile middleware which provides support for role-based trust and accountability in distributed mobile environment. The proposed model, founded on delegation certificates, allows the management of trust relations using a role-based trust model RT0. After having introduced the role and policy delegation mechanism, we present the authentication protocol between requester and compliance checker, which essentially unifies remote administration with credential distribution that provides the ability to construct richer security policies and easy to manage distributed middleware mobile communication, authentication and request.
A Genetic Algorithm Based on Immune and Chaos
Authors: Jianhua Zhang, Xiaojie Liu, Tao Li, Nan Zhang, Nian Liu, Chun Xu
Venue: Proceedings of the Third International Conference on Natural Computation - Volume 05 (2007)

An immune chaos genetic algorithm is presented to keep population's diversity, avoid local optimum and improve performance of genetic algorithm. Immune selection is used to adjust antibody's density, and the advantage of individuals is exerted by introducing vaccination. By virtue of the over-spread character of chaos sequence, it is used to generate the pool of antibody to overcome redundancies. At the same time, searching space is enlarged by using sensitivity of chaos initial value. The result of simulation experiments shows that the algorithm has good performance in the aspects of both the convergence speed and the global optimum.
Intelligent and situation-aware pervasive system to support debris-flow disaster prediction and alerting in Taiwan
Authors: Hsu-Yang Kung, Hao-Hsiang Ku, Che-I Wu, Ching-Yu Lin
Venue: Journal of Network and Computer Applications (2008)

Effective information transmission through robust communications is critical to prevent and alert for natural disasters. However, disasters always destroy the wired communication environment. Moreover, effective information needs to reveal the real situations of the disaster, e.g., the accurate position and the real-time image/video of accident events. An accurate disaster prediction model is useful to reduce casualties and prevent disasters from occurring. An effective disaster prediction is based on the accurate disaster decision model, which can be achieved through the situation-aware information communications between the disaster area and the rescue-control center. This study proposes and designs an Intelligent and Situation-Aware Pervasive System (ISPS), which successfully alert people the occurrence of debris-flow disasters. ISPS is a three-tier architecture consisting of mobile appliances, intelligent situation-aware agents (ISA) and a decision support server based on the wireless/mobile Internet communications. Furthermore, the Location-aware Routing Prediction Method (LRPM) was developed to decrease the transmission traffic and latency of pictures pushing the maps of the disaster to mobile clients. Based on the database of the pre-analyzed 181 potential debris flows in Taiwan, accurate debris flow prediction models were built to prevent debris flow using case-based reasoning (CBR) in the decision support server.
Metrics and Evolution in Open Source Software
Authors: Young Lee, Jeong Yang, Kai H. Chang
Venue: Proceedings of the Seventh International Conference on Quality Software (2007)

This paper presents an analysis of the evolution of an open source software system, JFreeChart, which is an open source charting library [1], based on its size, fan-in/out coupling, and cohesion metrics. We developed JamTool, a Java Automated Measurement Tool [4] to obtain the metrics and to observe the quality change along the evolution of the twenty-two released versions of JFreeChart. The empirical study clearly indicates that there are positive relations between the number of classes and the fan-in/out coupling, and the added class group has better software quality than the removed class group. Moreover, the experimental results follow Lehman's 1st, 2nd, 6th laws but against 7th law of software evolution.
Secure E-Commerce Protocol for Purchase of e-Goods - Using Smart Card
Authors: Satish Devane, Madhumita Chatterjee, Deepak Phatak
Venue: Proceedings of the Third International Symposium on Information Assurance and Security (2007)

The rapid growth of e-commerce for buying and selling electronic goods or intangible goods has necessitated the need for development of a number of e-commerce protocols, which ensure integrity, confidentiality, atomicity and fair exchange. In this paper we propose an e-commerce protocol for performing business over the Internet. The protocol uses a smart card for ensuring mutual authentication, dispute resolution and fair exchange and reduces reliance on a trusted third party. Atomicty is also maintained in the protocol.
A real-time adaptive control of autonomic computing environments
Authors: Bogdan Solomon, Dan Ionescu, Marin Litoiu, Mircea Mihaescu
Venue: Proceedings of the 2007 conference of the center for advanced studies on Collaborative research (2007)

Autonomic computing has received a great deal of attention from the research community in recent years. Many techniques have been proposed to monitor, analyze, and change the system under observation, but less attention has been paid to adapting the autonomic computing loop itself. Based on previous results on the design and implementation of a reference real-time architecture for autonomic computing, a self-adapting loop based on system-specific adaptation knowledge, which includes the types and properties of autonomic computing components, behavioural constraints, and strategies for adaptation is proposed in this paper. The proposed system is an integral part of the real-time system that controls the behaviour of the computing environment, evaluating its global behaviour using criteria that take into account the mathematical description of the time variation of the number of users in the system. Based on this evaluation, the adaptive system changes the control structure of the autonomic computing environment by replacing its controller with one matching the user time variation law. Elements of the self-adapting loop and the tradeoff of introducing additional overhead to the autonomic computing processes are discussed. A case study illustrates the self-adapting technique proposed.
Fully online multicommand brain-computer interface with visual neurofeedback using SSVEP paradigm
Authors: Pablo Martinez, Hovagim Bakardjian, Andrzej Cichocki
Venue: Computational Intelligence and Neuroscience (2007)

We propose a new multistage procedure for a real-time brain-machine/computer interface (BCI). The developed system allows a BCI user to navigate a small car (or any other object) on the computer screen in real time, in any of the four directions, and to stop it if necessary. Extensive experiments with five young healthy subjects confirmed the high performance of the proposed online BCI system. The modular structure, high speed, and the optimal frequency band characteristics of the BCI platform are features which allow an extension to a substantially higher number of commands in the near future.
SocialButton - Mobile Technology Enhancing Social Interaction
Authors: Johannes Landstorfer, Larissa Pschetz, Malte Kloes, Reto Wettach
Venue: Proceedings of the The 2007 International Conference on Next Generation Mobile Applications, Services and Technologies (2007)

We are exploring the use of small displays as an instrument to enhance social communication. Our focus is on encouraging communication between strangers by revealing the existence of common friends. In the following we present the concept of the SocialButton, a wearable mobile device which displays aspects of friend-of-a-friend networks. A group study has provided us with an initial understanding regarding the potential of the SocialButton to influence our social environment.
Increasing the discriminatory power of DEA in the presence of the sample heterogeneity with cluster analysis and decision trees
Authors: Sergey Samoilenko, Kweku-Muata Osei-Bryson
Venue: Expert Systems with Applications: An International Journal (2008)

Data envelopment analysis (DEA) is a widely used non-parametric data analytic tool discriminatory power of which is dependent on the homogeneity of the domain of the sample. In many real-life cases, however, the sample of the decision making units (DMU) could consist of two or more naturally occurring subsets, thus exhibiting clear signs of heterogeneity. In such situations, the discriminatory power of DEA is limited, for the nature of the relative efficiency of a DMU is likely to be influenced by its membership in a particular subset of the sample. In this study, we propose a three-step methodology allowing for increasing the discriminatory power of DEA in the presence of the heterogeneity of the sample. In the first phase, we use cluster analysis (CA) in order to test for the presence of the naturally occurring subsets in the sample. In the second phase DEA is used to calculate the relative efficiencies of the DMUs, as well as averaged relative efficiencies of each subset identified in the previous phase. Finally, we utilize decision tree (DT) induction in order to inquire into the subset-specific nature of the relative efficiencies of the DMUs in the sample. Illustrative example is provided.
Building Personalized Recommendation System in E-commerce Using Association Rule-based Mining and Classification
Authors: Zhang Xizheng
Venue: Proceedings of the Eighth ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing - Volume 03 (2007)

Due to the convenience of Internet, people can search for whatever information they need and buy whatever they want on the web. In the age of E-Commerce, it is difficult to provide support for customers to find the most valuable products that match their heterogeneous needs. Traditional approaches to this so-called personalization problem adopt pre-defined formats to describe the customer requirements. This always leads to distortion in eliciting requirement information and thus inaccurate recommendations. In this paper,we propose a personalized recommendation system using association rule mining and classification in e-commerce. Customer requirements are extracted from text documents and transformed into a set of significant phrases. Allowing the transformed transaction records, a set of association rule are mined from database using Apriori algorithm. CBA-CB algorithm is applied to produce the best rules out of the whole set of rules. The best classifiers are then generated after the test and validation of those rules, aimed to predict the item labels for new customer requirements and thus assigns the corresponding class labels to the customer. The system analysis and design of the proposed recommendation system as well as the implementation of prototype are also presented.
A study of LISP on a multiprocessor preliminary version
Authors: Peter Nuth, Robert Halstead,  Jr.
Venue: ACM SIGPLAN Lisp Pointers (1989)

Parallel symbolic computation has attracted considerable interest in recent years. Research groups building multiprocessors for such applications have been frustrated by the lack of data on how symbolic programs run on a parallel machine. This report describes the behavior of Multilisp programs running on a shared memory multiprocessor. Data was collected for a set of application programs on the frequency of different instructions, the type of objects accessed, and where the objects were located in the memory of the multiprocessor. The locality of data references for different multiprocessor organizations was measured. Finally, the effect of different task scheduling strategies on the locality of accesses was studied. This data is summarized here, and compared to other studies of LISP performance on uniprocessors.
Integrating MPEG-7 into the moving image collections portal
Authors: Grace Agnew, Dan Kniesner, Mary Beth Weber
Venue: Journal of the American Society for Information Science and Technology (2007)

This article discusses the implementation of MPEG-7 within the Moving Image Collections (MIC) portal. MIC is a union catalog of the world's moving images, as well as a portal to information on the care, management, and use of moving images. The MIC Union Catalog utilizes a core registry schema that is designed to map readily to any metadata schema used to describe moving images. The MIC development team was particularly interested in supporting MPEG-7 for future nontextual digital video indexing applications. An MPEG-7 application profile and Microsoft Access cataloging utility were developed in order to test MPEG-7 within the MIC Union Catalog; 400 science digital videos in the Research Channel collection were cataloged in MPEG-7. The MPEG-7 records were mapped to MIC and ingested. Draft MPEG-7 to MIC and MIC to MPEG-7 maps were developed and are available at the MIC Web site. MPEG-7 records are available for viewing for any record in the MIC database via a collections explore search within the Archivists' portal. The MPEG-7 cataloging utility may be downloaded from the MIC project Web site (Moving Image Collections. MIC Cataloging Utility. http://gondolin.rutgers.edu/MIC/text/ how/cataloging_utility.htm). This article also discusses issues with MPEG-7 as a descriptive metadata schema, as well as mapping and implementation issues identified in the project.
The micole architecture: multimodal support for inclusion of visually impaired children
Authors: Thomas Pietrzak, Benoît Martin, Isabelle Pecci, Rami Saarinen, Roope Raisamo, Janne Järvi
Venue: Proceedings of the 9th international conference on Multimodal interfaces (2007)

Modern information technology allows us to seek out new ways to support the computer use and communication of disabled people. With the aid of new interaction technologies and techniques visually impaired and sighted users can collaborate, for example, in the classroom situations. The main goal of the MICOLE project was to create a software architecture that makes it easier for the developers to create multimodal multi-user applications. The framework is based on interconnected software agents. The hardware used in this study includes VTPlayer Mouse which has two built-in Braille displays, and several haptic devices such as PHANToM Omni, PHANToM Desktop and PHANToM Premium. We also used the SpaceMouse and various audio setups in the applications. In this paper we present a software architecture, a set of software agents, and an example of using the architecture. The example application shown is an electric circuit application that follows the single-user with many devices scenario. The application uses a PHANToM and a VTPlayer Mouse together with visual and audio feedback to make the electric circuits understandable through touch.