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VLDB
2001
ACM
110views Database» more  VLDB 2001»
13 years 12 months ago
Comparing Hybrid Peer-to-Peer Systems
“Peer-to-peer” systems like Napster and Gnutella have recently become popular for sharing information. In this paper, we study the relevant issues and tradeoffs in designing a...
Beverly Yang, Hector Garcia-Molina
IDEAS
2000
IEEE
96views Database» more  IDEAS 2000»
13 years 12 months ago
A Cost Function for Uniformly Partitioned UB-Trees
Most operations of the relational algebra or SQL - like projection with duplicate elimination, join, ordering, group by and aggregations - are efficiently processed using a sorted...
Volker Markl, Rudolf Bayer
ICDT
1999
ACM
154views Database» more  ICDT 1999»
13 years 11 months ago
Databases for Tracking Mobile Units in Real Time
Abstract. In this paper we consider databases representing information about moving objects (e.g. vehicles), particularly their location. We address the problems of updating and qu...
Ouri Wolfson, Liqin Jiang, A. Prasad Sistla, Sam C...
CIKM
2008
Springer
13 years 9 months ago
Modeling multi-step relevance propagation for expert finding
An expert finding system allows a user to type a simple text query and retrieve names and contact information of individuals that possess the expertise expressed in the query. Thi...
Pavel Serdyukov, Henning Rode, Djoerd Hiemstra
CIDR
2009
157views Algorithms» more  CIDR 2009»
13 years 8 months ago
Capturing Data Uncertainty in High-Volume Stream Processing
We present the design and development of a data stream system that captures data uncertainty from data collection to query processing to final result generation. Our system focuse...
Yanlei Diao, Boduo Li, Anna Liu, Liping Peng, Char...