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SEMWEB
2010
Springer
13 years 6 months ago
Using Reformulation Trees to Optimize Queries over Distributed Heterogeneous Sources
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
Yingjie Li, Jeff Heflin
WISE
2002
Springer
14 years 1 months ago
Querying Web Data - The WebQA Approach
The common paradigm of searching and retrieving information on the Web is based on keyword-based search using one or more search engines, and then browsing through the large numbe...
Sunny K. S. Lam, M. Tamer Özsu
SAC
2010
ACM
14 years 3 months ago
Web-based graphical querying of databases through an ontology: the Wonder system
Biological scientists have made large amounts of data available on the Web, which can be accessed by canned or precomputed queries presented via web forms. To satisfy further info...
Diego Calvanese, C. Maria Keet, Werner Nutt, Maria...
VLDB
2002
ACM
161views Database» more  VLDB 2002»
13 years 8 months ago
BANKS: Browsing and Keyword Searching in Relational Databases
The BANKS system enables keyword-based search on databases, together with data and schema browsing. BANKS enables users to extract information in a simple manner without any knowl...
B. Aditya, Gaurav Bhalotia, Soumen Chakrabarti, Ar...
IUI
2006
ACM
14 years 2 months ago
Towards intelligent QA interfaces: discourse processing for context questions
Question answering (QA) systems take users’ natural language questions and retrieve relevant answers from large repositories of free texts. Despite recent progress in QA researc...
Mingyu Sun, Joyce Y. Chai