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CEAS
2007
Springer
15 years 10 months ago
Asymmetric Gradient Boosting with Application to Spam Filtering
In this paper, we propose a new asymmetric boosting method, Boosting with Different Costs. Traditional boosting methods assume the same cost for misclassified instances from di...
Jingrui He, Bo Thiesson
CLEAR
2007
Springer
164views Biometrics» more  CLEAR 2007»
15 years 10 months ago
The AIT 2D Face Detection and Tracking System for CLEAR 2007
This paper describes the AIT system for 2D face tracking and the results obtained in the CLEAR 2007 evaluations. The system is based on the complementary operation of a set of face...
Andreas Stergiou, Ghassan Karame, Aristodemos Pnev...
CSR
2007
Springer
15 years 10 months ago
Conjunctive Grammars over a Unary Alphabet: Undecidability and Unbounded Growth
Abstract It has recently been proved (Je˙z, DLT 2007) that conjunctive grammars (that is, context-free grammars augmented by conjunction) generate some nonregular languages over a...
Artur Jez, Alexander Okhotin
DAGM
2007
Springer
15 years 10 months ago
A Fast and Reliable Coin Recognition System
This paper presents a reliable coin recognition system that is based on a registration approach. To optimally align two coins we search for a rotation in order to reach a maximal n...
Marco Reisert, Olaf Ronneberger, Hans Burkhardt
FCT
2007
Springer
15 years 10 months ago
On Notions of Regularity for Data Languages
Abstract. Motivated by considerations in XML theory and model checking, data strings have been introduced as an extension of finite alphabet strings which carry, at each position,...
Henrik Björklund, Thomas Schwentick