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WSDM
2012
ACM
325views Data Mining» more  WSDM 2012»
13 years 5 months ago
Correlating financial time series with micro-blogging activity
We study the problem of correlating micro-blogging activity with stock-market events, defined as changes in the price and traded volume of stocks. Specifically, we collect messa...
Eduardo J. Ruiz, Vagelis Hristidis, Carlos Castill...
EDBT
2009
ACM
184views Database» more  EDBT 2009»
15 years 4 months ago
Distributed similarity search in high dimensions using locality sensitive hashing
In this paper we consider distributed K-Nearest Neighbor (KNN) search and range query processing in high dimensional data. Our approach is based on Locality Sensitive Hashing (LSH...
Parisa Haghani, Sebastian Michel, Karl Aberer
INFOCOM
2009
IEEE
15 years 4 months ago
Quantifying the Importance of Vantage Points Distribution in Internet Topology Measurements
—The topology of the Internet has been extensively studied in recent years, driving a need for increasingly complex measurement infrastructures. These measurements have produced ...
Yuval Shavitt, Udi Weinsberg
ICCS
2009
Springer
15 years 4 months ago
Distinguishing Answers in Conceptual Graph Knowledge Bases
Abstract. In knowledge bases, the open world assumption and the ability to express variables may lead to an answer redundancy problem. This problem occurs when the returned answers...
Nicolas Moreau, Michel Leclère, Madalina Cr...
P2P
2007
IEEE
15 years 4 months ago
A Data Placement Scheme with Time-Related Model for P2P Storages
Maintaining desired data availability while minimizing costs is the primary challenge in designing P2P storages. Data placement schemes and data availability calculation methods a...
Jing Tian, Zhi Yang, Yafei Dai