1. Integrated Departmental Information Service IDIS provides integration in three aspects Integrate relational querying and text retrieval Integrate search and navigation for multidimensional data Integrate past context with current search

2. IDIS System Demo Relational Data & Text SearchSearch & Navigation Multidimensional Search

3. IDIS System Architecture Text Search Result RDBMS Text DB Internet Result in xml SQL Query Composer Keyword Query Text Query Composer Search Engine Presentation Layer Query and Context SQL Query SQL Search Result Contextualized Query Web Crawler Data Extractor Result in html Ontology and relational data

4. IDIS System Features  Allow users to search a relational database without knowledge of the underlying schema  Rank results according to their relevance with respect to the keyword query  Support navigation between ontology concepts  Construct context-sensitive text query  Provide clustered presentation of both relational and text search results

5. IDIS System Techniques  Enhanced keyword search over relational databases with synonyms  Dynamic construction of context-specific text queries  Ontology-based link generation  Prioritized and hierarchical display of results

6. IDIS: Ongoing and Future Work  Incremental Crawling and Indexing More web pages are being created such as seminar announcement pages. So we need incrementally crawl and index them  Semi-automatic Data Extraction We Semi-automatically extract structured data from 41 professor web pages, 66 class web sites.  Embedding Relational Data Retrieval in Text Retrieval