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VHL Integrated Search. New search engine. Current State. Meta-engine performs search on distributed information sources User must select an information source = several steps to access information Each information source has its own presentation format and search interface
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VHL Integrated Search New search engine
Current State • Meta-engine performs search on distributed information sources • User must select an information source = several steps to access information • Each information source has its own presentation format and search interface • Slow learning curve • High cost of maintenance (products) • Lack of personalized services
New Integrated Search (iAHx) • Single interface to search for and present the metadata of the information sources • Organization of clusters that allows the exploration and refining the set of documents retrieved • Common services: selection of documents, sent by mail, search history, etc. • Organization of the results by relevance, date and others (eg: SJR Scimago Journal Rank) • Exports results in XML and RSS formats
System Architecture index index controller interface users index
VHL – Tecnological Architecture InterfaceLevel Index Level ISISCollexisGoogle Data Level Services Interfaces - WS, OAI, RSS Protocols
Data Level Metadata • Conversion of information sources for a set of metadata (single schema) • Identification of elements for organization into "clusters"
VHL – Tecnological Architecture InterfaceLevel Index Level ISISCollexisGoogle Data Level Services Interfaces - WS, OAI, RSS Protocols
Index Level Indexes Boolean query Boolean query, page ranking Vectorial search with concept identification based on thesaurus Boolean query, ranking and clusters
VHL – Tecnological Architecture InterfaceLevel Index Level ISISCollexisGoogle Data Level Services Interfaces - WS, OAI, RSS Protocols
Interface Level • WS developed in Java • Search interface developed in PHP