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» EMiT: A Process Mining Tool
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WWW
2011
ACM
13 years 2 months ago
Automatic construction of a context-aware sentiment lexicon: an optimization approach
The explosion of Web opinion data has made essential the need for automatic tools to analyze and understand people’s sentiments toward different topics. In most sentiment analy...
Yue Lu, Malú Castellanos, Umeshwar Dayal, C...
SIGECOM
2011
ACM
311views ECommerce» more  SIGECOM 2011»
12 years 10 months ago
The role of social networks in online shopping: information passing, price of trust, and consumer choice
While social interactions are critical to understanding consumer behavior, the relationship between social and commerce networks has not been explored on a large scale. We analyze...
Stephen Guo, Mengqiu Wang, Jure Leskovec
KCAP
2003
ACM
14 years 29 days ago
Aiding knowledge capture by searching for extensions of knowledge models
Electronic concept mapping tools empower experts to play an active role in the knowledge capture process, and provide a medium for building richly connected multimedia knowledge m...
David B. Leake, Ana Gabriela Maguitman, Thomas Rei...
DEXA
2009
Springer
222views Database» more  DEXA 2009»
14 years 2 months ago
On Index-Free Similarity Search in Metric Spaces
Metric access methods (MAMs) serve as a tool for speeding similarity queries. However, all MAMs developed so far are index-based; they need to build an index on a given database. T...
Tomás Skopal, Benjamin Bustos
IJCNN
2008
IEEE
14 years 2 months ago
A neural network approach to ordinal regression
— Ordinal regression is an important type of learning, which has properties of both classification and regression. Here we describe an effective approach to adapt a traditional ...
Jianlin Cheng, Zheng Wang, Gianluca Pollastri