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» Efficient Phrase Querying with Common Phrase Index
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MM
2009
ACM
219views Multimedia» more  MM 2009»
14 years 21 days ago
Descriptive visual words and visual phrases for image applications
The Bag-of-visual Words (BoW) image representation has been applied for various problems in the fields of multimedia and computer vision. The basic idea is to represent images as ...
Shiliang Zhang, Qi Tian, Gang Hua, Qingming Huang,...
SIGMOD
2004
ACM
184views Database» more  SIGMOD 2004»
14 years 6 months ago
Identifying Similarities, Periodicities and Bursts for Online Search Queries
We present several methods for mining knowledge from the query logs of the MSN search engine. Using the query logs, we build a time series for each query word or phrase (e.g., `Th...
Michail Vlachos, Christopher Meek, Zografoula Vage...
CIKM
2008
Springer
13 years 8 months ago
TinyLex: static n-gram index pruning with perfect recall
Inverted indexes using sequences of characters (n-grams) as terms provide an error-resilient and language-independent way to query for arbitrary substrings and perform approximate...
Derrick Coetzee
DAGSTUHL
2004
13 years 7 months ago
The Priority R-Tree: A Practically Efficient and Worst-Case-Optimal R-Tree
We present the Priority R-tree, or PR-tree, which is the first R-tree variant that always answers a window query using O((N/B)1-1/d + T/B) I/Os, where N is the number of ddimensio...
Lars Arge, Mark de Berg, Herman J. Haverkort, Ke Y...
ALENEX
2008
192views Algorithms» more  ALENEX 2008»
13 years 7 months ago
Compressed Inverted Indexes for In-Memory Search Engines
We present the algorithmic core of a full text data base that allows fast Boolean queries, phrase queries, and document reporting using less space than the input text. The system ...
Frederik Transier, Peter Sanders