ppxscal/embedding_network huggingface dataset:
Characterizing Ad Hoc B2B Applications Using Ontologies and Complex Systems
Authors: Rosa Gil, Jaime Delgado, Zied Choukair
Venue: Proceedings of the 19th International Conference on Advanced Information Networking and Applications - Volume 1 (2005)

Service providers can improve their provision using semantics and complex system analysis to provide customers ad hoc applications where there is no prior knowledge of which customer ad hoc application components to consider. This work aims to provide a new methodology for building a general framework for ad hoc applications over large networks using semantics and complex systems analysis. The first part develops the reasons why semantics helps describing ad hoc applications and how ontologies systematize application knowledge in a graph. The second part deals with managing the amount of information which can be huge in case the graph could be a large network. For such purpose, complex systems analysis and statistical analysis are used to extract properties from the graph. It allows to discover new knowledge because some structures appear in the graph as clustering, connections degree and "small world". For instance, this information will show which application components are highly and poorly connected and could be translated to vulnerability to attacks. Finally, an example wraps up the paper and summarizes the methodology.
Facilitating the rapid development and scalable orchestration of composite web services
Authors: Boualem Benatallah, Marlon Dumas, Quan Z. Sheng
Venue: Distributed and Parallel Databases (2005)

The development of new Web services through the composition of existing ones has gained a considerable momentum as a means to realise business-to-business collaborations. Unfortunately, given that services are often developed in an ad hoc fashion using manifold technologies and standards, connecting and coordinating them in order to build composite services is a delicate and time-consuming task. In this paper, we describe the design and implementation of a system in which services are composed using a model-driven approach, and the resulting composite services are orchestrated following a peer-to-peer paradigm. The system provides tools for specifying composite services through statecharts, data conversion rules, and multi-attribute provider selection policies. These specifications are interpreted by software components that interact in a peer-to-peer way to coordinate the execution of the composite service. We report results of an experimental evaluation showing the relative advantages of this peer-to-peer approach with respect to a centralised one.
How do search engines respond to some non-English queries?
Authors: Judit Bar-Ilan, Tatyana Gutman
Venue: Journal of Information Science (2005)

In this article, we explored the capabilities of search engines for non-English languages. As a test case, we considered four languages: Russian, French, Hungarian and Hebrew. For each of these languages we tested three general search engines: Alta Vista, FAST and Google and some local search engines. Our results indicate that in the examined cases the general search engines ignore the special characteristics of non-English languages, and sometimes they do not even handle diacritics well. These findings are rather disturbing, since for example Google is very popular in non-English speaking countries as well, and users are either not aware of what they miss when using search tools that do not take into account the structure and the special characteristics of the specific language or have no alternatives but to use these search engines.
Vehicle Fingerprinting for Reacquisition and Tracking in Videos
Authors: Yanlin Guo, Steve Hsu, Ying Shan, Harpreet Sawhney, Rakesh Kumar
Venue: Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Volume 2 - Volume 02 (2005)

Visual recognition of objects through multiple observations is an important component of object tracking. We address the problem of vehicle matching when multiple observations of a vehicle are separated in time such that frames of observations are not contiguous, thus prohibiting the use of standard frame-to-frame data association. We employ features extracted over a sequence during one time interval as a vehicle fingerprint that is used to compute the likelihood that two or more sequence observations are from the same or different vehicles. The challenges of change in pose, aspect and appearances across two disparate observations are handled by combining feature-based quasi-rigid alignment with flexible matching between two or more sequences. The current work uses the domain of vehicle tracking from aerial platforms where typically both the imaging platform and the vehicles are moving and the number of pixels on the object are limited to fairly low resolutions. Extensive evaluation with respect to ground truth is reported in the paper.
A novel clock generation scheme for globally asynchronous locally synchronous systems: an FPGA-validated approach
Authors: Kamran Saleh, Mehrdad Najibi, Mohsen Naderi, Hossein Pedram, Mehdi Sedighi
Venue: Proceedings of the 15th ACM Great Lakes symposium on VLSI (2005)

This paper focuses on a clock generation scheme for implementation of GALS circuits on commercial FPGAs which are mostly synchronous. Previously overlooked timing problems of existing pausible clock generators are explored and a novel clock generator is introduced. To validate the proposed solution we implemented the clock generator and a simple port controller on FPGA. In addition, general design considerations to successfully implement a GALS circuit on FPGAs are discussed. At the end we present a GALS Reed-Solomon decoder as a practical example. The results show that the GALS approach can improve both power and performance of the system using different partitioning strategies.
An advanced evolutionary strategy with an adaptive penalty function for mixed-discrete structural optimisation
Authors: Carsten Ebenau, Jens Rottschäfer, Georg Thierauf
Venue: Advances in Engineering Software (2005)

Modular three-dimensional steel frames are prefabricated structures with slender elements and dominating compressive forces. Their analysis includes different non-linearities and the optimisation variables are often mixed-discrete or topological. The optimisation of these systems requires the most advanced solution techniques but also a systematic preprocessing, a sophisticated non-linear structural analysis and an automated handling of stress- and displacement-constraints as well as further side-constraints resulting from the underlying codes of practice. In this contribution, a (µ + 1)-evolutionary strategy combined with an adaptive penalty function and a special selection scheme is presented to solve this optimisation problem.
Methods for Operations Planning in Airport Decision Support Systems
Authors: Jesús García Herrero, Antonio Berlanga, José M. Molina, José R. Casar
Venue: Applied Intelligence (2005)

Simulation and decision support tools can help airport ground controllers to improve surface operations and safety, leading to enhancements in the process of traffic flow management. In this paper, two planning approaches for automatically finding the best routes and sequences for demanded operations are proposed and analyzed. These approaches are integrated into a general decision support system architecture. The problem addressed is the global management of departure operations, moving aircraft along airport taxiways between gate positions and runways. Two global optimization approaches have been developed together with a suitable problem representation: a modified time-space flow algorithm and a genetic algorithm, both aimed at minimizing the total ground delay. The capability and performance of these planning techniques have been illustrated on simulated samples of ground operations at Madrid Barajas International Airport.
Comparing faculty information seeking in teaching and research: Implications for the design of digital libraries: Research Articles
Authors: Christine L. Borgman, Laura J. Smart, Kelli A. Millwood, Jason R. Finley, Leslie Champeny, Anne J. Gilliland, Gregory H. Leazer
Venue: Journal of the American Society for Information Science and Technology (2005)

ADEPT is a 5-year project whose goals are to develop, deploy, and evaluate inquiry learning capabilities for the Alexandria Digital Library, an extant digital library of primary sources in geography. We interviewed nine geography faculty members who teach undergraduate courses about their information seeking for research and teaching and their use of information resources in teaching. These data were supplemented by interviews with four faculty members from another ADEPT study about the nature of knowledge in geography. Among our key findings are that geography faculty are more likely to encounter useful teaching resources while seeking research resources than vice versa, although the influence goes in both directions. Their greatest information needs are for research data, maps, and images. They desire better searching by concept or theme, in addition to searching by location and place name. They make extensive use of their own research resources in their teaching. Among the implications for functionality and architecture of geographic digital libraries for educational use are that personal digital libraries are essential, because individual faculty members have personalized approaches to selecting, collecting, and organizing teaching resources. Digital library services for research and teaching should include the ability to import content from common office software and to store content in standard formats that can be exported to other applications. Digital library services can facilitate sharing among faculty but cannot overcome barriers such as intellectual property rights, access to proprietary research data, or the desire of individuals to maintain control over their own resources. Faculty use of primary and secondary resources needs to be better understood if we are to design successful digital libraries for research and teaching. &copy; 2005 Wiley Periodicals, Inc.
Neural network-based techniques for efficient detection of variable-bit-rate signals in MC-CDMA systems working over LEO satellite networks
Authors: Claudio Sacchi, Gianluca Gera, Carlo S. Regazzoni
Venue: Signal Processing (2005)

For a few years, multicarrier modulations have been proposed as valuable alternatives with respect to state-of-the-art single carrier ones due to their resilience against interference and channel distortion effects. In particular, many studies are arising about multicarrier-CDMA (MC-CDMA) techniques that provide improved robustness and flexibility with respect to single-carrier spread-spectrum techniques. Satellite communications considered the employment of MC-CDMA for multimedia transmission very recently, especially for what concerns the delivery of variable-bit-rate services over low-earth-orbit (LEO) satellite networks. To this aim, the problems to be faced are mainly related to the development of efficient methodologies for satellite channel estimation, equalization and multi-user detection, in order to exploit in an optimal way the natural diversity inherent to MC-CDMA. In this paper we compare two different neural-network-based approaches for efficient reception of MC-CDMA signals in the case of asynchronous, multi-user, and variable-bit-rate transmission over LEO satellite channels. The first approach introduces neural networks for supporting receiver decision. The second more sophisticated approach exploits neural networks for joint channel estimation and symbol detection. Simulation results will be presented that demonstrate the improved effectiveness of the proposed methodologies, with respect to state-of-the-art MC-CDMA detection techniques, both in terms of reduced BER and in terms of low computational complexity.
Comparing usability problems and redesign proposals as input to practical systems development
Authors: Kasper Hornbæk, Erik Frøkjær
Venue: Proceedings of the SIGCHI conference on Human factors in computing systems (2005)

Usability problems predicted by evaluation techniques are useful input to systems development; it is uncertain whether redesign proposals aimed at alleviating those problems are likewise useful. We present a study of how developers of a large web application assess usability problems and redesign proposals as input to their systems development. Problems and redesign proposals were generated by 43 evaluators using an inspection technique and think aloud testing. Developers assessed redesign proposals to have higher utility in their work than usability problems. In interviews they explained how redesign proposals gave them new ideas for tackling well known problems. Redesign proposals were also seen as constructive and concrete input. Few usability problems were new to developers, but the problems supported prioritizing ongoing development of the application and taking design decisions. No developers, however, wanted to receive only problems or redesigns. We suggest developing and using redesign proposals as an integral part of usability evaluation.
Lessons from Darwin: adaptation and career management for IT professionals
Authors: Diane Bandow
Venue: Proceedings of the 2005 ACM SIGMIS CPR conference on Computer personnel research (2005)

Darwin introduced the world to his theory on environmental change in the adaptation of different species; although his book originally appeared in 1842, the concepts are still relevant to provide a lens through which IT career management can be examined. Key terms in nature such as environmental change and evolution are also applicable and exist in the business environment and organizations today. In business as in nature, environmental changes influence opportunities and modification occurs to meet different needs. Just as organizations have evolved from the elaborate and complex hierarchies to new organizational forms such as matrix, virtual, and flat, the individuals working in these organizations have also had to change with the organizations. The business environment has evolved from one of predictability and long-term planning to one of rapid changes, unpredictability and global competition. One key area in need of modification is career management; current views on career management are based on old organizational concepts and models that are inappropriate for the current, rapidly changing environment. To meet these changes, Cheseborough & Davis (1983) recommended that IT professionals assume responsibility for their own careers. Many other research efforts since then have made the same recommendation, but there is little research and limited information to indicate if personal career management ever really occurred or to what extent.Traditional career management was previously accomplished between individuals and organizations through slow but deliberate progression and career ladders, and individuals relied on supervisors, experience and the passage of time for promotion. The business environment has radically changed; organizations rarely support traditional career ladders; the dual ladders in IT have provided less than stellar outcomes (Allen & Katz, 1986).
Identity-Based Ring Signcryption Schemes: Cryptographic Primitives for Preserving Privacy and Authenticity in the Ubiquitous World
Authors: Xinyi Huang, Willy Susilo, Yi Mu, Futai Zhang
Venue: Proceedings of the 19th International Conference on Advanced Information Networking and Applications - Volume 2 (2005)

In this paper, we present a new concept called an identity based ring signcryption scheme (IDRSC). We argue that this is an important cryptographic primitive that must be used to protect privacy and authenticity of a collection of users who are connected through an ad-hoc network, such as Bluetooth. We also present an efficient IDRSC scheme based on bilinear pairing. As a regular signcryption scheme, our scheme combines the functionality of signature and encryption schemes. However, the idea is to have an identity based system. In our scheme, a user can anonymously signcrypts a message on behalf of the group. We show that our scheme outperforms a traditional identity based scheme, that is obtained by a standard sign-then-encrypt mechanism, in terms of the length of the ciphertext.We also provide a formal proof of our scheme with the chosen cipher-text security under the Decisional Bilinear Diffie-Hellman assumption, which is believed to be intractable.
Web engineering: technical discipline or social process?
Authors: Bebo White, David Lowe, Martin Gaedke, Daniel Schwabe, Yogesh Deshpande
Venue: Special interest tracks and posters of the 14th international conference on World Wide Web (2005)

This panel aims to explore the nature of the emerging Web engineering discipline. It will attempt to strongly engage with the issue of whether Web Engineering is currently, and (more saliently) should be in the future, viewed primarily as a technical design discipline with its attention firmly on the way in which Web technologies can be leveraged in the design process, or whether it should be viewed primarily as a socio-positioned discipline which focuses on the nature of the way in which projects are managed, needs are understood and users interact.
A simulation of quantum logic gates and qubits using Ruby
Authors: Jennifer Carini
Venue: Journal of Computing Sciences in Colleges (2004)

This purpose of this project was twofold. As a Physics major, Computer Science minor, my focus was to learn and use an object oriented scripting language to model an aspect of physics. Quantum computing is at the intersection of computer science and physics. I chose the Ruby programming language to model quantum logic gates and qubits.
Implementation of a TMO-structured real-time airplane-landing simulator on a distributed computing environment
Authors: Min-Gu Lee, Sunggu Lee, K. H. &lpar;Kane&rpar; Kim
Venue: Software&mdash;Practice Experience (2004)

In real-time simulation, the simulated system should display the same &lpar;or very close&rpar; timing behavior as the target system. The simulation accuracy is increased as the simulation time unit is decreased. Although there are several models for such systems, the TMO model is particularly appropriate due to its natural support for real-time distributed object-oriented programming. This paper discusses the results of the implementation of a real-time airplane-landing simulator on a distributed computing environment using the TMO model. Copyright &copy; 2004 John Wiley & Sons, Ltd.
Designing systems that direct human action
Authors: Ana Ramírez Chang, Marc Davis
Venue: CHI '05 extended abstracts on Human factors in computing systems (2005)

In this paper we present a user-centered design process for Active Capture systems. These systems bring together techniques from human-human direction practice, multimedia signal processing, and human-computer interaction to form computational systems that automatically analyze and direct human action. The interdependence between the design of multimedia signal parsers and the user interaction script presents a unique challenge in the design process. We have developed an iterative user-centered design process for Active Capture systems that incorporates bodystorming, wizard-of-oz user studies, iterative parser design, and traditional user studies, based on our experience designing a portrait camera system that works with the user to record her name and take her picture. Based on our experiences, we lay out a set of recommendations for future tools to support such a design process.
abc: an extensible AspectJ compiler
Authors: Pavel Avgustinov, Aske Simon Christensen, Laurie Hendren, Sascha Kuzins, Jennifer Lhoták, Ondřej Lhoták, Oege de Moor, Damien Sereni, Ganesh Sittampalam, Julian Tibble
Venue: Proceedings of the 4th international conference on Aspect-oriented software development (2005)

Research in the design of aspect-oriented programming languages requires a workbench that facilitates easy experimentation with new language features and implementation techniques. In particular, new features for AspectJ have been proposed that require extensions in many dimensions: syntax, type checking and code generation, as well as data flow and control flow analyses.The AspectBench Compiler (abc) is an implementation of such a workbench. The base version of abc implements the full AspectJ language. Its frontend is built, using the Polyglot framework, as a modular extension of the Java language. The use of Polyglot gives flexibility of syntax and type checking. The backend is built using the Soot framework, to give modular code generation and analyses.In this paper, we outline the design of abc, focusing mostly on how the design supports extensibility. We then provide a general overview of how to use abc to implement an extension. Finally, we illustrate the extension mechanisms of abc through a number of small, but non-trivial, examples. abc is freely available under the GNU LGPL.
Workflow-Oriented Grid Service Composition and Scheduling
Authors: Shaohua Zhang, Yuwei Zong, Zhigang Ding, Jiamao Liu
Venue: Proceedings of the International Conference on Information Technology: Coding and Computing (ITCC'05) - Volume II - Volume 02 (2005)

The Grid and Web Service are converging as the WSRF is proposed. The grid not only provides the computing and resources sharing pools, but also supports the electronic business and enterprise applications integration with the composition of grid service. The paper presents a novel semantic composition method and adaptive scheduling algorithm based on grid workflow, which can benefit from the workflow architecture in the composition, visualization, verification, scheduling, execution and monitoring. The method can address semantic issues and automate the composition of grid service, and the algorithm can improve scheduling efficiency when the composite grid service is executed in the grid environment. According to the simulation experiment on the prototype implemented on the GT3, the composition and scheduling have the advantage of efficiency and effectiveness.
Robust adaptive single neural control for a class of uncertain nonlinear systems with input nonlinearity
Authors: Wei-Der Chang
Venue: Information Sciences&mdash;Informatics and Computer Science: An International Journal (2005)

This paper presents an adaptive single neural controller for a class of uncertain nonlinear systems subject to a nonlinear input. A new type of neuron called auto-tuning neuron with three adjustable parameters will be introduced to construct a single neural controller. From the concept of the sliding mode control, a simple adaptation law, minimizing the value of a designed sliding condition based on a modified MIT rule, is developed for online updating these parameters in the auto-tuning neuron, even if the nonlinear plant considered is with the uncertainty, external noisy perturbation, and nonlinear input. Lastly, a controlled well-known Duffing Holmes chaotic system is illustrated to show the effectiveness of the proposed neural controller.
Fault-tolerant cycle embedding in hierarchical cubic networks
Authors: Lennart Björneborn, Gen-Huey Chen
Venue: Networks (2004)

A hierarchical cubic network was proposed as an alternative to the hypercube. By HCN&lpar;n&rpar;, we denote the hierarchical cubic network that contains 2n n-dimensional hypercubes. In this paper, using Gray codes, we construct fault-free Hamiltonian cycles in an HCN&lpar;n&rpar; with n - 1 link faults. Since the HCN&lpar;n&rpar; is regular of degree n &plus; 1, the result is optimal. We also construct longest fault-free cycles of length 22n - 1 in an HCN&lpar;n&rpar; with a one-node fault and fault-free cycles of length at least 22n - 2f in an HCN&lpar;n&rpar; with f-node faults, where 22n is the number of nodes in the HCN&lpar;n&rpar;, f &le; n - 1 if n &equals; 3 or 4 and f &le; n if n &ge; 5. Our results can be applied to the hierarchical folded-hypercube network as well. &copy; 2003 Wiley Periodicals, Inc.