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» Answering Queries from Statistics and Probabilistic Views
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GIS
2004
ACM
14 years 9 months ago
Supporting spatial aggregation in sensor network databases
Sensor networks are unattended deeply distributed systems whose schema can be conceptualized using the relational model. Aggregation queries on the data sampled at each ode are th...
Mehdi Sharifzadeh, Cyrus Shahabi
WCE
2007
13 years 9 months ago
An Intelligent Conversational Agent Approach to Extracting Queries from Natural Language
—This paper is concerned with the application of a conversational agent and expert system to provide a natural language interface to a database. Typically, natural language datab...
Karen Pudner, Keeley A. Crockett, Zuhair Bandar
EDBT
2009
ACM
115views Database» more  EDBT 2009»
14 years 3 months ago
Top-k dominating queries in uncertain databases
Due to the existence of uncertain data in a wide spectrum of real applications, uncertain query processing has become increasingly important, which dramatically differs from handl...
Xiang Lian, Lei Chen 0002
SIGMOD
2009
ACM
134views Database» more  SIGMOD 2009»
14 years 8 months ago
Keyword query cleaning using hidden Markov models
In this paper, we consider the problem of keyword query cleaning for structured databases from a probabilistic approach. Keyword query cleaning consists of rewriting the user quer...
Ken Q. Pu
EMNLP
2008
13 years 10 months ago
Selecting Sentences for Answering Complex Questions
Complex questions that require inferencing and synthesizing information from multiple documents can be seen as a kind of topicoriented, informative multi-document summarization. I...
Yllias Chali, Shafiq R. Joty