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Content Provider | ACM Digital Library |
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Author | Kushmerick, Nicholas Khoussainov, Rinat |
Abstract | Organising large-scale Web information retrieval systems into hierarchies of topic-specific search resources can improve both the quality of results and the efficient use of computing resources. A promising way to build such systems involves federations of topic-specific search engines in decentralised search environments. Most of the previous research concentrated on various technical aspects of such environments (e.g. routing of search queries or merging of results from multiple sources). We focus on organisational dynamics: what happens to topical specialisation of search engines in the absence of centralised control, when each engine makes individual and self-interested decisions on its service parameters? We investigate this question in a computational economics framework, where search providers compete for user queries by choosing what topics to index. We provide a formalisation of the competition problem and then analyse theoretically and empirically the specialisation dynamics of such systems. |
Starting Page | 112 |
Ending Page | 119 |
Page Count | 8 |
File Format | |
ISBN | 1581139780 |
DOI | 10.1145/1031453.1031474 |
Language | English |
Publisher | Association for Computing Machinery (ACM) |
Publisher Date | 2004-11-12 |
Publisher Place | New York |
Access Restriction | Subscribed |
Subject Keyword | Competition Topic specialisation Federated web search |
Content Type | Text |
Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
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1 | Ministry of Education (GoI), Department of Higher Education |
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Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
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