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KDD
2012
ACM
205views Data Mining» more  KDD 2012»
13 years 1 months ago
Searching and mining trillions of time series subsequences under dynamic time warping
Most time series data mining algorithms use similarity search as a core subroutine, and thus the time taken for similarity search is the bottleneck for virtually all time series d...
Thanawin Rakthanmanon, Bilson J. L. Campana, Abdul...
ISI
2006
Springer
14 years 11 months ago
Collective Sampling and Analysis of High Order Tensors for Chatroom Communications
This work investigates the accuracy and efficiency tradeoffs between centralized and collective (distributed) algorithms for (i) sampling, and (ii) n-way data analysis techniques i...
Evrim Acar, Seyit Ahmet Çamtepe, Bülen...
ICDT
2009
ACM
147views Database» more  ICDT 2009»
15 years 11 months ago
The average-case complexity of counting distinct elements
We continue the study of approximating the number of distinct elements in a data stream of length n to within a (1? ) factor. It is known that if the stream may consist of arbitra...
David P. Woodruff
117
Voted
KDD
2012
ACM
244views Data Mining» more  KDD 2012»
13 years 1 months ago
Open domain event extraction from twitter
Tweets are the most up-to-date and inclusive stream of information and commentary on current events, but they are also fragmented and noisy, motivating the need for systems that c...
Alan Ritter, Mausam, Oren Etzioni, Sam Clark
VTC
2007
IEEE
15 years 5 months ago
MIMO Downlink Weighted Sum Rate Maximization with Power Constraints per Antenna Groups
Abstract— We consider a single-cell multiple-input multipleoutput (MIMO) downlink channel where linear transmission and reception strategy is employed. The base station (BS) tran...
Marian Codreanu, Antti Tölli, Markku J. Juntt...