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Physical Sciences and Mathematics Commons™
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- Keyword
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- Digital libraries (2)
- Metadata (2)
- Application specific architectures (1)
- Arc (1)
- CAD (1)
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- Cache (1)
- Collections (1)
- Computer arithmetic (1)
- Data providers (1)
- Digital objects (1)
- Digital repositories (1)
- Federated searching (1)
- Gateway (1)
- Genetic algorithms (1)
- HTTP proxy (1)
- Heuristics (1)
- Information objects (1)
- Inner product (1)
- Object persistence and availability (1)
- Open Archives Protocol for Metadata Harvesting (OAI-PMH) (1)
- Open archive initiative (OAI) (1)
- Processor (1)
- Reconfigurable bus system (1)
- Reconfigurable buses (1)
- Search interface (1)
- Service providers (1)
- Shift switching (1)
- Single row routing (1)
- VLSI (1)
- Web services (1)
Articles 1 - 5 of 5
Full-Text Articles in Physical Sciences and Mathematics
Fast Inner Product Computation On Short Buses, R. Lin, S. Olariu
Fast Inner Product Computation On Short Buses, R. Lin, S. Olariu
Computer Science Faculty Publications
We propose a VLSI inner product processor architecture involving broadcasting only over short buses (containing less than 64 switches). The architecture leads to an efficient algorithm for the inner product computation. Specifically, it takes 13 broadcasts, each over less than 64 switches, plus 2 carry-save additions (tcsa) and 2 carry-lookahead additions (tcla) to compute the inner product of two arrays of N = 29 elements, each consisting of m = 64 bits. Using the same order of VLSI area, our algorithm runs faster than the best known fast inner product algorithm of Smith and Torng …
Object Persistence And Availability In Digital Libraries, Michael L. Nelson, B. Danette Allen
Object Persistence And Availability In Digital Libraries, Michael L. Nelson, B. Danette Allen
Computer Science Faculty Publications
We have studied object persistence and availability of 1,000 digital library (DL) objects. Twenty World Wide Web accessible DLs were chosen and from each DL, 50 objects were chosen at random. A script checked the availability of each object three times a week for just over 1 year for a total of 161 data samples. During this time span, we found 31 objects (3% of the total) that appear to no longer be available: 24 from PubMed Central, 5 from IDEAS, 1 from CogPrints, and 1 from ETD.
Federated Searching Interface Techniques For Heterogeneous Oai Repositories, Xiaoming Liu, Kurt Maly, Mohammad Zubair, Qiaoling Hong, Michael L. Nelson, Frances Knudson, Irma Holtkamp
Federated Searching Interface Techniques For Heterogeneous Oai Repositories, Xiaoming Liu, Kurt Maly, Mohammad Zubair, Qiaoling Hong, Michael L. Nelson, Frances Knudson, Irma Holtkamp
Computer Science Faculty Publications
Federating repositories by harvesting heterogeneous collections with varying degrees of metadata richness poses a number of challenging issues: (1) how to address the lack of uniform control for various metadata fields in terms of building a rich unified search interface, and (2) how easily new collections and freshly harvested data in existing repositories can be incorporated into the federation supporting a unified interface? This paper focuses on the approaches taken to address these issues in Arc, an Open Archives Initiative compliant federated digital library. At present Arc contains over 1M metadata records from 75 data providers from various subject domains. …
The Single Row Routing Problem Revisited: A Solution Based On Genetic Algorithms, Albert Y. Zomaya, Roger Karpin, Stephan Olariu
The Single Row Routing Problem Revisited: A Solution Based On Genetic Algorithms, Albert Y. Zomaya, Roger Karpin, Stephan Olariu
Computer Science Faculty Publications
With the advent of VLSI technology, circuits with more than one million transistors have been integrated onto a single chip. As the complexity of ICs grows, the time and money spent on designing the circuits become more important. A large, often dominant, part of the cost and time required to design an IC is consumed in the routing operation. The routing of carriers, such as in IC chips and printed circuit boards, is a classical problem in Computer Aided Design. With the complexity inherent in VLSI circuits, high performance routers are necessary. In this paper, a crucial step in the …
A Scalable Architecture For Harvest-Based Digital Libraries, Xiaoming Liu, Tim Brody, Stevan Harnard, Les Carr, Kurt Maly, Mohammad Zubair, Michael L. Nelson
A Scalable Architecture For Harvest-Based Digital Libraries, Xiaoming Liu, Tim Brody, Stevan Harnard, Les Carr, Kurt Maly, Mohammad Zubair, Michael L. Nelson
Computer Science Faculty Publications
This article discusses the requirements of current and emerging applications based on the Open Archives Initiative (OAI) and emphasizes the need for a common infrastructure to support them. Inspired by HTTP proxy, cache, gateway and web service concepts, a design for a scalable and reliable infrastructure that aims at satisfying these requirements is presented. Moreover, it is shown how various applications can exploit the services included in the proposed infrastructure. The article concludes by discussing the current status of several prototype implementations.