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DASFAA
2010
IEEE
190views Database» more  DASFAA 2010»
15 years 10 months ago
k-Selection Query over Uncertain Data
This paper studies a new query on uncertain data, called k-selection query. Given an uncertain dataset of N objects, where each object is associated with a preference score and a p...
Xingjie Liu, Mao Ye, Jianliang Xu, Yuan Tian, Wang...
SIGIR
2012
ACM
13 years 9 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...
SIGMOD
1997
ACM
134views Database» more  SIGMOD 1997»
15 years 10 months ago
Similarity-Based Queries for Time Series Data
We study similarity queries for time series data where similarity is defined in terms of a set of linear transformations on the Fourier series representation of a sequence. We ha...
Davood Rafiei, Alberto O. Mendelzon
ICALP
2003
Springer
15 years 11 months ago
Quantum Search on Bounded-Error Inputs
Suppose we have n algorithms, quantum or classical, each computing some bit-value with bounded error probability. We describe a quantum algorithm that uses O( √ n) repetitions of...
Peter Høyer, Michele Mosca, Ronald de Wolf
IPTPS
2004
Springer
15 years 12 months ago
Making Peer-to-Peer Keyword Searching Feasible Using Multi-level Partitioning
—This paper discusses large scale keyword searching on top of peer-to-peer (P2P) networks. The state-of-the-art keyword searching techniques for unstructured and structured P2P s...
Shuming Shi, Guangwen Yang, Dingxing Wang, Jin Yu,...