ppxscal/embedding_network huggingface dataset:
Capturing Geometry Rationale for Collaborative Design
Authors: Mark Klein
Venue: Proceedings of the 6th Workshop on Enabling Technologies on Infrastructure for Collaborative Enterprises (1997)

When an artifact is designed the typical output consists of documents describing the final result of a long series of deliberations and tradeoffs by the participants of collaborative design (AKA concurrent engineering) teams. The underlying intent and logical support (i.e. the rationale) for the decisions captured therein is usually lost, or is represented at best as a scattered, difficult-to-access collection of paper documents and designers' recollections. This is particularly true for geometric, as opposed to preliminary, design rationale. Rationale information is critical, however, for important collaborative design functions such as team memory, design retrieval and negotiation. This paper describes an evolving web-based tool designed to greatly improve capture and access of preliminary and geometric design rationale in concurrent engineering teams, based on a marriage of rationale capture, world-wide web, CAD and feature-based design technology.
Web-Assisted Visits to Cultural Heritage
Authors: Giacomo Cabri, Letizia Leonardi, Franco Zambonelli
Venue: Proceedings of the 10th IEEE International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises (2001)

The wide access to cultural heritage is gaining more and more interest from the information technology community. Museums, exhibitions and cultural places are becoming enterprises that supply new services to access cultural information, and this calls for suitable infrastructures and tools. In such a context, this paper proposes a distributed application to enable virtual visits, based on an infrastructure exploiting innovative technologies such as active proxy servers and mobile agents. Such application is integrated within the Web and permits to build up virtual visits that can be attended by groups of people interested in the same subject. Such visits are tailored on the basis of users' profiles and devices, and can be enhanced by the availability of distributed services. This grants a high degree of flexibility and autonomy for our application.
Reordering the Statements with Dependence Cycles to Improve the Performance of Parallel Loops
Authors: Chih-Ping Chu, Doris L. Carver
Venue: Proceedings of the 1997 International Conference on Parallel and Distributed Systems (1997)

In this paper, we study the exploitation of statement-level parallelism in dependence cycles of Do-loops executed in a random (general) synchronization mode, with emphasis on the effect of statement ordering on parallelism level. For a dependence cycle of a single parallel loop, the parallelism exposed, in general, varies with the alignment of statements. Statement reordering (without modifying the semantics) relies on the compile-time prediction of execution-time of the loop. An improved timing formula and the derived algorithm of statement reordering in single Do loop with dependence cycles to improve the performance of parallel loops are proposed and discussed.
Collective Choice in Virtual Teams
Authors: Alois Ferscha, Christoph Scheiner
Venue: Proceedings of the 8th Workshop on Enabling Technologies on Infrastructure for Collaborative Enterprises (1999)

Virtual organizations within and across enterprise structures are becoming mature as a potentially effective means for goal oriented business teamwork. Among the plentiful of support functions enabling the efficient cooperation in teams, team decision making is a very crucial one, but does not find adequate support in contemporary team software solutions. Even the most knowledgeable results from collective choice theory are not reflected in the respective virtual team environments.This paper makes a first and very systematic attempt to provide virtual teams with the power of voting procedures developed in the context of the theory of collective choice. A toolset, TEAMVOTE, for electronic decision making is presented, implementing a blend of the most important collective choice strategies like the Dodgson rule, the majority rule, plurality voting, Borda counting, approval voting, the Nanson rule, the Hare rule, the Coomb rule etc. based on standard Internet technology. The services of TEAMVOTE targeted to support goal oriented business teams in group decision matters raises the perspective of its use also to enable democratic processes on a societal scale.
SliM-II: A Linear Array SIMD Processor for Real-time Image Processing
Authors: Hyunman Chang, Changhee Lee, Myung Hoon Sunwoo
Venue: Proceedings of the 1997 International Conference on Parallel and Distributed Systems (1997)

This paper describes architectures and design of a linear array processor chip called a SliM-II Image Processor. The chip has a linear array of 64 processing elements (PEs). In contrast to existing array processors, each PE has a multiplier that is quite effective for convolution, template matching, etc. The instruction set can execute an ALU, a data I/O, and an inter-PE communication operations simultaneously in an instruction cycle. In addition, during the ALU/multiplier operation, SliM-II provides parallel data load/store between the register file and on-chip memory as in DSP chips. The SliM-II contains about 1.5 million transistors in a 13.2 X 13.0 mm2 core size and the package type is 208 pin PQ2. The performance estimation shows a significant improvement for algorithms requiring multiplications compared with existing array processors
Resource-Sharing and Service Deployment in Virtual Data Centers
Authors: Sven Graupner, Vadim Kotov, Holger Trinks
Venue: Proceedings of the 22nd International Conference on Distributed Computing Systems (2002)

The expectation of a global presence of services leads to the need for large numbers of service instances allocated in a multitude of regional data centers in order to provide sufficient service capacity close to where the demand occurs. Scale of service instances is anticipated growing \gg 104 raising new challenges for control and management. Pragmatically, it must become much easier to deploy service instances in data center, allocating resources, sharing them, installing and configuring data and software needed for service instances and integrating them into a singular service that appears to a consumer.Adjusting numbers and locations of service instances is seen as a basic control mechanism in order to follow regional or temporal fluctuations in demands.The paper proposes a new concept of virtualizing whole data center environments and quickly deploying massive amounts of service instances. A virtualization layer takes care of resource allocation from different data center locations and all specifics when service instances are allocated in a particular data center. Virtualized data centers provide a consistent operating environment spanning multiple physical data center locations for thewhole family of service instances. And vice versa, physical data centers host several execution environments for different services.After a brief discussion of challenges coming with the scale of service instances we anticipate, the paper overviews virtual data centers and discusses one aspect in more detail how massive amounts of service instances can be deployed using a recursive approach.
Propagation of Sematic Modifications to an Integrated Schema
Authors: Regina Motz, Peter Fankhauser
Venue: Proceedings of the 3rd IFCIS International Conference on Cooperative Information Systems (1998)

In this paper we present a methodology to semi-automatically propagate semantic modifications on local schemas of a federated database to the integrated schema. Our approach is based on a declarative schema integration methodology, called SIM, which accomplishes schema integration by resolving a set of equivalence correspondences between arbitrarily complex local subschemas. This paper extends this methodology with a more diversified set of semantic correspondences and with an approach to integrate schemas incrementally. On this basis, local schema changes can be modelled as semantic correspondences between subschemas, which extend or alter the correspondences that have led to the existing integrated schema. Propagating these changes to the integrated schema then amounts in incrementally revising the affected original schema correspondences and reintegrating the affected portions of the integrated schema.
Protecting the Quality of Service of Existing Information Systems
Authors: Kevin S. Beyer, Miron Livny, Raghu Ramakrishnan
Venue: Proceedings of the 3rd IFCIS International Conference on Cooperative Information Systems (1998)

Organizations that offer external access to their data need a mechanism that ensures a desired level of service for local users. We propose such a mechanism, called the provider agent (PA) architecture, that protects local users by ensuring a (DBA specified) quality of service for local requests in the face of computational demands made by external requests. The PA is a general purpose solution that enhances most information systems currently available. The novelty of our approach is the combination of request profiling with load control mechanisms to improve both protection and performance, while not requiring any modifications to the underlying information system. We demonstrate the effectiveness of the proposed techniques with a prototype PA for a commercial DBMS.
Here Is the Knowledge-Where Should I Put It?
Authors: Peter H. Carstensen, Ulrika Snis
Venue: Proceedings of the 8th Workshop on Enabling Technologies on Infrastructure for Collaborative Enterprises (1999)

In order to design useful knowledge media spaces to knowledge workers it is essential that we understand the nature of the work conducted and the knowledge applied in real settings. This paper reports from a study of how a group of quality assurance specialists gather, structure and distribute information and knowledge. Based on the findings a number of overall requirements for knowledge media spaces are identified and discussed. The essential findings were that information and knowledge are created and handled in many different ways and have many different forms. The core issues of our lessons learned so far are that we carefully need to consider knowledge media spaces both in terms of communication channels and knowledge archives. Knowledge media spaces should be seen as spaces in which knowledge and information is exchanged, filed, retrieved, presented and refined by actors having different vocabulary and perspectives on the knowledge. These characteristics must be taken into account when designing IT and multimedia based knowledge media spaces.
Embeddings of cycles, meshes and tori in faulty k-ary n-cubes
Authors: Yaagoub Ashir, Iain A. Stewart
Venue: Proceedings of the 1997 International Conference on Parallel and Distributed Systems (1997)

We investigate the existence of cycles, meshes and tori in a k-ary n-cube Q/sub n//sup k/ in which a limited number of nodes and links are faulty. Our main result is that in a k-ary n-cube Q/sub n//sup k/ in which there are v faulty nodes /spl lambda/faulty links where v+/spl lambda//spl les/n, there is a cycle of length at least k/sup n/-vw, where w=1 if k is odd and w=2 if k is even (throughout k/spl ges/3 and n/spl ges/2). We extend this result so as to prove the existence of large meshes and tori in such a faulty k-ary n-cube.
Enterprise Security: Legal Challenges and Possible Solutions
Authors: Emily M. Weitzenboeck
Venue: Proceedings of the 10th IEEE International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises (2001)

To survive in the business, especially the online, world, an enterprise requires an effective security infrastructure. However, enterprises should bear in mind that there is often also a legal obligation to keep certain data or information secure, emanating from legislation such as intellectual property, data protection or trade secret legislation or from contract. A number of technological measures already exist to provide security in the online world, such as encryption, electronic signatures and privacy enhancing technologies. However, one often encounters a number of legal constraints to the use of these measures through, for example, restrictions on the export and use of cryptography, difficulties and doubts of the legal recognition of electronic signatures, and different national rules on certification services. If electronic commerce is to grow, there is need for more international co-operation as well as mutual recognition of, and more liberalisation of, such regulations. 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
Summary Report on Enterprise Security Workshop
Authors: Wu Wen, Germano Caronni, Yahya Y. Al-Salqan
Venue: Proceedings of the 10th IEEE International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises (2001)

This report summarizes the presentations of the 6th IEEE Enterprise Security Workshop. The workshop included twenty presentations, one invited talk and on discussion session. The presentations are divided into the following categories, representing a broad range of topics: Intrusion detection and system security; Access control, Anonymity, Environment and frameworks, Key recovery, Key management and protocols, Privacy and law. The invited talk was given by Distinguished Engineer of Sun Microsystems, Radia Perlman, on the topic of IPSec key exchange standards. A lively discussion session was organized by program co-chair Germano Carroni on the topic of future of firewall. In this report, we intend to highlight interesting and provocative topics that generated the most discussions in each session. We hope it serves as thought provoking questions that are seeking answers from the readers. In addition, we hope this summary report can be used to provide some additional information for the readers when reading the technical papers. The titles and authors of the presented papers are not repeated in the following summary. The reader is advised to refer to the presentation agenda which can be found at the WETICE 2001 website.
An Architectural Approach to Auto-Adaptive Systems
Authors: Luis Filipe Andrade, José Luiz Fiadeiro
Venue: Proceedings of the 22nd International Conference on Distributed Computing Systems (2002)

We propose a layered architecture based on the separation of two concerns ¿ computation and coordination ¿ as a means of achieving higher levels of auto-adaptability. This separation makes it possible for adaptation to be enforced through the reconfiguration of the system in terms of the mechanisms that coordinate interactions, superposing connectors among components of the system without intruding on the way the computations that they perform locally are implemented.
Visualizing Structural and Behavioural Aspects of Virtual Collaboration
Authors: Robert P. Biuk-Aghai
Venue: Proceedings of the 10th IEEE International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises (2001)

Collaborative virtual environments are becoming increasingly commonplace, moving out of research labs and into professional practice. Among others, they support knowledge-intensive emergent work performed by distributed teams. In these settings where conventional awareness is absent, making sense of the virtual collaboration becomes challenging. This paper introduces information visualization that aims to reveal structural and behavioural aspects of virtual collaboration, referring respectively to relationships among elements of the collaboration, and the interactions that occur as part of it. Visualization tools have to be tailored to, and express notions from, the ontology of the virtual environment employed. An example is introduced where instances of collaboration that have taken place within the LiveNet system are visualized, in terms of LiveNet's ontology. Finally, the paper offers an outlook on how visualization tools can be assisted by software agents that learn from, and actively support their human users.
Service Oriented Communication Technology for Achieving Assurance
Authors: Takanori Ono, Khaled Ragab, Naohiro Kaji, Kinji Mori
Venue: Proceedings of the 22nd International Conference on Distributed Computing Systems (2002)

The advancement of mobile telecommunication has made mobile commerce possible. It has been increasing even more that the requirement for mobile commerce to provide not only location aware but also timely services for daily life, which cannot be satisfied through the global information services such as e-business on the Internet. !! In the retail business under the evolving market, the users would like to utilize convenient services provided by the retailers within accessible area certainly. The retailers need to grasp the current requirements of the majority of the users in their own vicinity trade-areas in order to determine the appropriate services, which are called the Local Majority based services. This service marketing information should be temporary because the users consisting of the Local Majority and their requirement constantly change. More over the available service has a time limit and the area should become narrower with the time.Reliable communication between the retailers and the users is required for the provision of the services. Real-time property is also required for the marketing of the users' requirements and the provision of the Local Majority based services. Achieving assurance for these requirements under the evolving situation is required.Time Distance, which changes with the situation such as the congestion of the street, is introduced as the efficient measure of the distance between the users and the retailers. The Time Distance Oriented Service System has been defined to satisfy real-time property and reliable communication in the local trade area, where the users and the retailers have cooperative roles both for the provision and utilization of the services under the evolving situations. The system architecture, and the autonomous interactive communication between the users and the retailers are presented. Here, nodes have autonomy for fading unnecessary and inconvenient information through time distance based communication among them both for the marketing and provision. The nodes also autonomously reduce the information service area for achieving further effectiveness.It is shown that this architecture and technologies realize assurance for the real-time properties and reliability and achieve effectiveness in mobile commerce.
A Semantic Approach of Virtual Worlds Interoperability
Authors: Michel Soto, Sébastien Allongue
Venue: Proceedings of the 6th Workshop on Enabling Technologies on Infrastructure for Collaborative Enterprises (1997)

Abstract: This paper presents a semantic approach to a solution of the problem of interoperability for virtual worlds. The semantics of virtual worlds and virtual entities is described using the Influence/Reaction model of multi-agent systems. The main feature of this model is to clearly separate the description of an action (performed by virtual entities) and the consequences of the action. We demonstrate how this separation is highly favourable to design virtual worlds with interoperability. We use and extend the Influence/Reaction model to quantify the semantic compatibility level between virtual worlds and then to compute the resulting behavior of virtual entities involved in an interoperability session. Nevertheless, the Influence/Reaction model can work properly for interoperability purposes only if the symbols (names) used to describe the virtual entities are identical in each virtual world. This constraint is relaxed by using the ontology concept.
The Evaluation of an Intercultural Collaborative Virtual Social-Process Simulation
Authors: Elaine M. Raybourn
Venue: Proceedings of the 10th IEEE International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises (2001)

The author designed a computer-mediated social-process simulation that allowed participants to explore potentially threatening dynamics in a safe, player-controlled communication-rich environment and then evaluated its effects. Evaluation methodologies employed include design ethnography, task analyses, usability studies, prototyping, and quantitative evaluation. A quantitative comparison study of intercultural simulations measured perceptions of threatening topics in both face-to-face and computer-mediated settings. It was concluded that the intercultural problem-solving simulation (DomeCityMOO) designed for multi-user learning in a virtual environment may make it easier to learn the essence of cultural identity awareness and intercultural relations skills expressed through one's communication. To date, intercultural realtime simulations are only designed for face-to-face. The DomeCityMOO is the first computer-mediated intercultural, multi-user, realtime simulation designed specifically to address issues of power and identity. The design principles employed in the DomeCityMOO challenge the popular belief that aspects of tacit culture, and intercultural awareness can only be taught successfully face-to-face.
HADAS: A Network-Centric Framework for Interoperability Programming
Authors: Israel Ben-Shaul, Avron Cohen, Ophir Holder, Boris Lavva
Venue: Proceedings of the Second IFCIS International Conference on Cooperative Information Systems (1997)

The explosive growth in global networking infrastructures has created the opportunity to construct systems involving large number of independent and widely-distributed computational components. Administrative and operational autonomy considerations imply that the actual establishment of agreements regarding all aspects of component interaction must be explicitly declared and effectively formed. Moreover, since agreements may evolve over time, their representation needs to be highly tailorable. Design autonomy considerations imply the need to interoperate between pre-existing components, yet not enforce a fixed interoperability standard. The HADAS system addresses both concerns by providing a model and a corresponding programmable interface to component interoperability. Specifically, it provides an integration framework in which components ``live'', a peer-based configuration model for forming agreements and interconnections between components, and a coordination language for explicitly programming the actual desired distributed computation using these components. The framework rests on an underlying reflective object model that supports mutability and mobility, and an infrastructure that provides object interconnectivity, security and persistence. HADAS is fully implemented in Java and comes with a full programming environment for developing and executing network-centric applications.
A Parellel Processing Method for Receding Horizon Tracking Control
Authors: Zengjiu Kang, Hyeong Jun Lim, Wook Hyun Kwon
Venue: Proceedings of the 1997 International Conference on Parallel and Distributed Systems (1997)

A recursive square root algorithm for Receding Horizon Tracking Control (RHTC) based on state-space model which the original sequential algorithm exhibits (O(Nn^2)) complexity is derived and its systolic implementation method is also shown. The parallel processing algorithm needs (O(Nn)) computations for an (n)-th order plant and (N)-step prediction horizon on (O(n^2+nN)) processor array.