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TIT
2008
52views more  TIT 2008»
15 years 14 days ago
Some Improved Bounds for Secure Frameproof Codes and Related Separating Hash Families
We present some improved bounds on necessary conditions for separating hash families of type {w, w} and type {w, w - 1}. In particular, these bounds apply to secure frameproof cod...
Douglas R. Stinson, Gregory M. Zaverucha
IDA
2009
Springer
15 years 7 months ago
Two-Way Grouping by One-Way Topic Models
Abstract. We tackle the problem of new users or documents in collaborative filtering. Generalization over users by grouping them into user groups is beneficial when a rating is t...
Eerika Savia, Kai Puolamäki, Samuel Kaski
EMMCVPR
2001
Springer
15 years 5 months ago
Designing the Minimal Structure of Hidden Markov Model by Bisimulation
Hidden Markov Models (HMMs) are an useful and widely utilized approach to the modeling of data sequences. One of the problems related to this technique is finding the optimal stru...
Manuele Bicego, Agostino Dovier, Vittorio Murino
DEXAW
2010
IEEE
202views Database» more  DEXAW 2010»
15 years 1 months ago
Identifying Sentence-Level Semantic Content Units with Topic Models
Abstract--Statistical approaches to document content modeling typically focus either on broad topics or on discourselevel subtopics of a text. We present an analysis of the perform...
Leonhard Hennig, Thomas Strecker, Sascha Narr, Ern...
122
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IEEEARES
2008
IEEE
15 years 7 months ago
Reliability Analysis using Graphical Duration Models
Reliability analysis has become an integral part of system design and operating. This is especially true for systems performing critical tasks such as mass transportation systems....
Roland Donat, Laurent Bouillaut, Patrice Aknin, Ph...