J
John Koutsias
Publications - 4
Citations - 1632
John Koutsias is an academic researcher. The author has contributed to research in topics: Naive Bayes classifier & Bayesian programming. The author has an hindex of 4, co-authored 4 publications receiving 1603 citations.
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An Evaluation of Naive Bayesian Anti-Spam Filtering
Ion Androutsopoulos,John Koutsias,Konstantinos Chandrinos,George Paliouras,Constantine D. Spyropoulos +4 more
TL;DR: It is reached that additional safety nets are needed for the Naive Bayesian anti-spam filter to be viable in practice.
Posted Content
An Experimental Comparison of Naive Bayesian and Keyword-Based Anti-Spam Filtering with Personal E-mail Messages
TL;DR: In this article, a Naive Bayesian classifier is trained automatically to detect spam messages, and a large collection of personal e-mail messages are made publicly available in "encrypted" form contributing towards standard benchmarks.
Proceedings ArticleDOI
An experimental comparison of naive Bayesian and keyword-based anti-spam filtering with personal e-mail messages
TL;DR: This work introduces appropriate cost-sensitive measures, and investigates at the same time the effect of attribute-set size, training-corpus size, lemmatization, and stop lists, issues that have not been explored in previous experiments.
Rule-based named entity recognition for greek financial texts
Dimitra Farmakiotou,Vangelis Karkaletsis,John Koutsias,George Sigletos,Constantine D. Spyropoulos,Panagiotis Stamatopoulos +5 more
TL;DR: This paper presents a NER system based on hand crafted lexical resources that is part of a Greek information extraction system and was tested on a Greek corpus of financial news with satisfactory results.