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» Online summarization of dynamic time series data
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DMIN
2006
131views Data Mining» more  DMIN 2006»
15 years 3 months ago
Use of Data Mining to Determine Cheating in Online Student Assessment
are proposing a model to help organizations detect and prevent cheats in online assessments. First we analyze different student personalities, stress situations generated by onlin...
Alberto Ochoa, Amol Wagholikar
ASPDAC
2007
ACM
174views Hardware» more  ASPDAC 2007»
15 years 5 months ago
Energy-Efficient Real-Time Task Scheduling in Multiprocessor DVS Systems
Dynamic voltage scaling (DVS) circuits have been widely adopted in many computing systems to provide tradeoff between performance and power consumption. The effective use of energ...
Jian-Jia Chen, Chuan-Yue Yang, Tei-Wei Kuo, Chi-Sh...
SIGMOD
2004
ACM
188views Database» more  SIGMOD 2004»
16 years 2 months ago
Online Event-driven Subsequence Matching over Financial Data Streams
Subsequence similarity matching in time series databases is an important research area for many applications. This paper presents a new approximate approach for automatic online s...
Huanmei Wu, Betty Salzberg, Donghui Zhang
119
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ICML
2010
IEEE
15 years 12 days ago
Heterogeneous Continuous Dynamic Bayesian Networks with Flexible Structure and Inter-Time Segment Information Sharing
Classical dynamic Bayesian networks (DBNs) are based on the homogeneous Markov assumption and cannot deal with heterogeneity and non-stationarity in temporal processes. Various ap...
Frank Dondelinger, Sophie Lebre, Dirk Husmeier
EDBT
2009
ACM
145views Database» more  EDBT 2009»
15 years 5 months ago
An efficient online auditing approach to limit private data disclosure
In a database system, disclosure of confidential private data may occur if users can put together the answers of past queries. Traditional access control mechanisms cannot guard a...
Haibing Lu, Yingjiu Li, Vijayalakshmi Atluri, Jaid...