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CICLING
2006
Springer
14 years 1 months ago
Automatic Acquisition of Semantic-Based Question Reformulations for Question Answering
Abstract. In this paper, we present a method for the automatic acquisition of semantic-based reformulations from natural language questions. Our goal is to find useful and generic ...
Jamileh Yousefi, Leila Kosseim
ICANN
2003
Springer
14 years 3 months ago
Sparse Coding with Invariance Constraints
We suggest a new approach to optimize the learning of sparse features under the constraints of explicit transformation symmetries imposed on the set of feature vectors. Given a set...
Heiko Wersing, Julian Eggert, Edgar Körner
CHI
1998
ACM
14 years 2 months ago
Digital Manipulatives: New Toys to Think With
In many educationalsettings,manipulative materials(such as CuisenaireRods andPatternBlocks) play an important role in children’s learning, enabling children to explore mathemati...
Mitchel Resnick, Fred Martin, Robert Berg, Richard...
SIGMOD
2004
ACM
156views Database» more  SIGMOD 2004»
14 years 10 months ago
Tree Logical Classes for Efficient Evaluation of XQuery
XML is widely praised for its flexibility in allowing repeated and missing sub-elements. However, this flexibility makes it challenging to develop a bulk algebra, which typically ...
Stelios Paparizos, Yuqing Wu, Laks V. S. Lakshmana...
CIARP
2007
Springer
14 years 4 months ago
A Statistical User Simulation Technique for the Improvement of a Spoken Dialog System
Abstract. In this paper, we present a statistical approach for the automatic generation of dialogs by means of a user simulator. This technique can be used to generate dialogs with...
Lluís Hurtado, David Griol, Emilio Sanchis,...