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» Processing search queries in a distributed environment
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WIDM
2006
ACM
15 years 8 months ago
SRI: exploiting semantic information for effective query routing in a PDMS
The huge amount of data available from Internet information sources has focused much attention on the sharing of distributed information through Peer Data Management Systems (PDMS...
Federica Mandreoli, Riccardo Martoglia, Simona Sas...
SIGIR
2012
ACM
13 years 4 months ago
To index or not to index: time-space trade-offs in search engines with positional ranking functions
Positional ranking functions, widely used in web search engines, improve result quality by exploiting the positions of the query terms within documents. However, it is well known ...
Diego Arroyuelo, Senén González, Mau...
ICDE
2005
IEEE
123views Database» more  ICDE 2005»
15 years 7 months ago
Load and Network Aware Query Routing for Information Integration
Current federated systems deploy cost-based query optimization mechanisms; i.e., the optimizer selects a global query plan with the lowest cost to execute. Thus, cost functions in...
Wen-Syan Li, Vishal S. Batra, Vijayshankar Raman, ...
VLDB
2005
ACM
106views Database» more  VLDB 2005»
15 years 7 months ago
Adaptive Stream Filters for Entity-based Queries with Non-Value Tolerance
We study the problem of applying adaptive filters for approximate query processing in a distributed stream environment. We propose filter bound assignment protocols with the obj...
Reynold Cheng, Ben Kao, Sunil Prabhakar, Alan Kwan...
BIODATAMINING
2008
117views more  BIODATAMINING 2008»
15 years 2 months ago
Search extension transforms Wiki into a relational system: A case for flavonoid metabolite database
Background: In computer science, database systems are based on the relational model founded by Edgar Codd in 1970. On the other hand, in the area of biology the word 'databas...
Masanori Arita, Kazuhiro Suwa