From: Adam Pease (apease@ks.teknowledge.com)
Date: 04/19/02
Folks, We'd like to announce a new version of our Agent Semantic Communication Service (ASCS) that supports semantic search on DAML content. Our advanced version of the search service is deployed at <http://oak.teknowledge.com:8080/daml/damlquery.jsp>. The older and somewhat simpler version remains available at <http://plucky.teknowledge.com/daml/damlquery.jsp> - To give the advanced users more query expressiveness, we developed a new version of the GUI with a multiple namespace selection feature. The new GUI allows the advanced users to specify each word in their queries with their intended namespaces. The namespace can be a variable, a blank (for literals), or any specific one in the knowledge base. Different objects in a query also can have different namespaces. - To satisfy the users' requests, we developed new features to retain the previous query, to help the users to get acquainted with the available namespaces in the server, and to show them the vocabulary for each namespace. These new features are all implemented in the advanced version. - To minimize the redundancy and omission of contents in the knowledge base due to crawling, we revised our method of calling ARP/Jena in our crawler. In addition, we unified the indices for namespaces when their physical file names, internal and external references are different - a tough issue encountered by other web semantic search engine developers due to free-style authoring and the fact that none of the parsers unify these mutants. Through unification, all namespaces referring to the same page will appear as one. It alleviates the query composer's burden to find the right namespace among mutants, and reduces the redundancy of the responses caused by this problem. We welcome your feedback. best regards, Adam Pease and John Li Adam Pease Teknowledge (650) 424-0500 x571
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