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IBPRIA
2003
Springer
13 years 10 months ago
Smoothing Techniques for Tree-k-Grammar-Based Natural Language Modeling
Abstract. In a previous work, a new probabilistic context-free grammar (PCFG) model for natural language parsing derived from a tree bank corpus has been introduced. The model esti...
Jose L. Verdú-Mas, Jorge Calera-Rubio, Rafa...
IBPRIA
2003
Springer
13 years 10 months ago
Robust Extraction of Vertices in Range Images by Constraining the Hough Transform
We describe a technique for extracting vertices from range images of cluttered box-like objects. Edge detection is performed and an edge map is acquired. Extraction of vertices is ...
Dimitrios Katsoulas
IBPRIA
2003
Springer
13 years 10 months ago
A User Authentication Technic Using a~Web Interaction Monitoring System
User authentication based on biometrics has explored both physiological and behavioral characteristics. We present a system, called Web Interaction Display and Monitoring (WIDAM), ...
Hugo Gamboa, Ana L. N. Fred
IBPRIA
2003
Springer
13 years 10 months ago
Supervised Locally Linear Embedding Algorithm for Pattern Recognition
The dimensionality of the input data often far exceeds their intrinsic dimensionality. As a result, it may be difficult to recognize multidimensional data, especially if the number...
Olga Kouropteva, Oleg Okun, Matti Pietikäinen
IBPRIA
2003
Springer
13 years 10 months ago
Underwater Cable Tracking by Visual Feedback
Nowadays, the surveillance and inspection of underwater installations, such as power and telecommunication cables and pipelines, is carried out by trained operators who, from the s...
Javier Antich, Alberto Ortiz