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140
Voted
SDM
2010
SIAM
183views Data Mining» more  SDM 2010»
15 years 5 months ago
GraSS: Graph Structure Summarization
Large graph databases are commonly collected and analyzed in numerous domains. For reasons related to either space efficiency or for privacy protection (e.g., in the case of socia...
Kristen LeFevre, Evimaria Terzi
129
Voted
SDM
2010
SIAM
156views Data Mining» more  SDM 2010»
15 years 5 months ago
Unsupervised Discovery of Abnormal Activity Occurrences in Multi-dimensional Time Series, with Applications in Wearable Systems
We present a method for unsupervised discovery of abnormal occurrences of activities in multi-dimensional time series data. Unsupervised activity discovery approaches differ from ...
Alireza Vahdatpour, Majid Sarrafzadeh
140
Voted
SDM
2008
SIAM
177views Data Mining» more  SDM 2008»
15 years 5 months ago
Roughly Balanced Bagging for Imbalanced Data
Imbalanced class problems appear in many real applications of classification learning. We propose a novel sampling method to improve bagging for data sets with skewed class distri...
Shohei Hido, Hisashi Kashima
112
Voted
IADIS
2008
15 years 5 months ago
An E-Learning System To Prepare Negotiations
The goal of this article is to propose an environment for negotiation e-learning courses using a workflow approach to help learners to prepare the negotiation. This environment is...
Sérgio Assis Rodrigues, Yann Duzert, Jano M...
126
Voted
ISNN
2007
Springer
15 years 9 months ago
A Hierarchical Self-organizing Associative Memory for Machine Learning
This paper proposes novel hierarchical self-organizing associative memory architecture for machine learning. This memory architecture is characterized with sparse and local interco...
Janusz A. Starzyk, Haibo He, Yue Li