LeVan, Ralph R.

An architecture for scholarly publishing on the World Wide Web ( Book )
2 editions published between 1994 and 1995 in English and held by 1 library worldwide

Parallel text searching on a Beowulf cluster using SRW by Ralph R LeVan ( Book )
1 edition published in 2005 in English and held by 1 library worldwide

SRW/U with OAI expected and unexpected synergies by Robert Sanderson ( Book )
1 edition published in 2005 in English and held by 1 library worldwide
SRW/U (the Search/Retrieve Webservice) and OAI (Open Archives Initiative) are both modern information retrieval protocols developed by distinct groups from different backgrounds at around the same time. This article sets out to briefly contrast the two protocols' aims and approaches, and then to look at some novel ways in which they have been or may be usefully co-implemented. While using SRW as a search service to an OAI repository or aggregated data set is an obvious synergy, there are also many other useful architectures that can be constructed without bending the protocols' semantics.

Moving Z39.50 to the Web OCLC researcher develops open-source software to blend an important library standard into the WWW infrastructure and help solve Web searching problems by Tom Storey ( Book )
1 edition published in 2004 in English and held by 1 library worldwide

Searching digital libraries by Ralph R LeVan ( Book )
1 edition published in 1998 in English and held by 1 library worldwide
This paper presents the view that digital objects need to be searchable by users in much the same manner as text objects on the Internet are now. There exist reasonable means to implement such searching. A description of the problematic aspects of such searching is given. One or more reasonable solutions is supplied for each, though it is clear that more research needs to be done on finding optimal methods.

Monticello Project Database design Encoded Archival Description records by Ralph R LeVan ( Book )
1 edition published in 1998 in English and held by 1 library worldwide
This article addresses the construction of a database for the Monticello Project containing Encoded Archival Description (EAD) records. Two principal design philosophies were used in the construction: make the data as accessible as possible and keep the returned records as small as possible. All of the work described was done using the standard OCLC tools (sgmlconv, the database-building programs, and WebZ) supplemented with OCLC's tool. Fred, developed by the Office of Research, is a general purpose tool for analyzing and manipulating SGML data. This project was a follow-on to the project reported in the Annual Review of OCLC Research--1996, "The Monticello Project: Design Considerations for a Virtual Library.

Dublin Core and Z39.50 by Ralph R LeVan ( Book )
1 edition published in 1998 in English and held by 1 library worldwide
This paper proposes a mechanism for using the Dublin Core for search and retrieval in Z39.50. Consensus agreement on this proposal is needed from the Z39.50 Implementors Group and from the Dublin Core community. This paper is not a tutorial on Z39.50. A minimal understanding of Z39.50 is necessary to understand the details of this discussion.

OCLC continues systems work to support international data by Ralph R LeVan ( Book )
1 edition published in 2000 in English and held by 1 library worldwide