Compression of Wiswesser Line Notations Using Variety Generation

An evaluation of some conflation algorithms for information retrieval

The characteristics of conflation algorithms are discussed and examples given of some algorithms which have been used for information retrieval systems. Comparative experiments with a range of keyword dictionaries and with the Cranfield document test collection suggest that there is relatively little difference in the performance of the algorithms despite the widely disparate means by which they have been developed and by which they operate.

Information retrieval research in the Department of Information Studies, University of Sheffield: 1965-1985

This paper discusses research which was carried out at the Department of Information Studies, University of Sheffield in the period 1965 to 1985 into storage and retrieval techniques for databases of textual and chemical structure data. The research includes the development of methods for the auto matic production of printed subject indexes and for the inde xing and retrieval of chemical structures and chemical reac tions, the variety generation method for the analysis, characterization and storage of data in a range of types of textual database, the prediction of biological activity in chemical compounds, and the design of document retrieval systems.