9694445
The architecture and implementation of a distributed hypermedia storage system
Our project is studying the process by which groups of individuals work together to build large, complex structures of ideas and is developing a distributed hypermedia collaboration environment (called ABC) to support that process. This paper focuses on the architecture and implementation of the Distributed Graph Storage (DGS) component of ABC. The DGS supports a graph-based data model, conservatively extended to meet hypermedia requirements. Some important issues addressed in the system include scale, performance, concurrency semantics, access protection, location independence, and replication (for fault tolerance).
6489448
ABC: a hypermedia system for artifact-based collaboration
Abstract : Our project is studying the process by which groups of individuals work together to build large, complex structures of ideas, and we are developing a distributed hypermedia system to support the process. This description includes a brief overview of the system, but emphasizes three components: a hypermedia data management system or graph server, a set of browsers for working with graph objects, and a set of applications for working with data contents of graph nodes. A number of research issues are raised and discussed in context, including: composite objects; anchored links; scaling up for large applications; partitioning the hypermedia graph; consistency and completeness across subgraphs; and an open, extensible architecture for applications.
12656940
Towards Semantic Universal Multimedia Access
1218721
Toward introducing notification technology into distributed project teams
Software development can be thought of as the evolution of abstract requirements into a concrete software system. The evolution, achieved through a successive series of elaborations and refinements, is inherently a complex process. The complexity is not merely in the product - the complexity of managing the evolution of the product throughout the life of a project is proportional to the size and complexity of the product. Managing software project teams is a complex task complicated by the distribution of project teams. Distributed collaboration requires adequate support for team coordination and risk management. Human-computer interaction (HCI) combines technical concerns with human psychological concerns. Similarly, software project managers confront complexities in both of these dimensions. In this paper, we report on a collaborative design environment called LINK-UP being developed to guide the design process and facilitate reuse, We examine some Web-based project management tools in terms of their support for collaborative design and virtual team processes. We present a notification system approach to making the design record a natural by-product of the design process and a lever for knowledge reuse. Knowledge from past projects could then be used to automatically notify project teams of potential problems and suggest possible solutions.
209397857
MPEG-7 Standard for Multimedia Databases.
1805433
MPEG-7 MDS Content Description Tools and Applications
In this paper, we present the tools specified by the MDS part of the MPEG-7 standard for describing multimedia data such as images and video. In particular, we focus on the description tools that represent the structure and semantics of multimedia data to whose development we have actively contributed. We also describe some of our research prototype systems dealing with the extraction and application of MPEG-7 structural and semantic descriptions. These systems are AMOS, a video object segmentation and retrieval system, and IMKA, an intelligent multimedia knowledge application using the MediaNet knowledge representation framework.
15945659
Distributed Query Processing on the Grid
Distributed query processing (DQP) has been widely used in data intensive applications where data of relevance to users is stored in multiple locations. This paper argues: (i) that DQP can be important in the Grid, as a means of providing high-level, declarative languages for integrating data access and analysis; and (ii) that the Grid provides resource management facilities that are useful to developers of DQP systems. As well as discussing and illustrating how DQP technologies can be deployed within the Grid, the paper describes a prototype implementation of a DQP system running over Globus.