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TKDE
2011
234views more  TKDE 2011»
13 years 2 months ago
The World in a Nutshell: Concise Range Queries
—With the advance of wireless communication technology, it is quite common for people to view maps or get related services from the handheld devices, such as mobile phones and PD...
Ke Yi, Xiang Lian, Feifei Li, Lei Chen 0002
PVLDB
2008
167views more  PVLDB 2008»
13 years 7 months ago
Managing and querying transaction-time databases under schema evolution
The old problem of managing the history of database information is now made more urgent and complex by fast spreading web information systems, such as Wikipedia. Our PRIMA system ...
Hyun Jin Moon, Carlo Curino, Alin Deutsch, Chien-Y...
BMCBI
2006
164views more  BMCBI 2006»
13 years 7 months ago
BIOZON: a system for unification, management and analysis of heterogeneous biological data
Integration of heterogeneous data types is a challenging problem, especially in biology, where the number of databases and data types increase rapidly. Amongst the problems that o...
Aaron Birkland, Golan Yona
ICDE
2008
IEEE
336views Database» more  ICDE 2008»
14 years 9 months ago
Dominant Graph: An Efficient Indexing Structure to Answer Top-K Queries
Given a record set D and a query score function F, a top-k query returns k records from D, whose values of function F on their attributes are the highest. In this paper, we investi...
Lei Zou, Lei Chen 0002
JDCTA
2010
152views more  JDCTA 2010»
13 years 2 months ago
A Semantic Approach to Extract the Final Answer in SBUQA Question Answering System
In this paper we introduce the semantic approach of the answer extraction component of a question answering system called SBUQA. The answer extraction component gets the retrieved...
Mehrnoush Shamsfard, Mahsa Arab Yarmohammadi