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Št. zadetkov: 7
Fighting Spam under Attack: Some Notes from the Field
Aleksander Kołcz
Video in druga učna gradiva
Oznake: computer science;machine learning;internet, world wide web
Leto: 2007 Vir: videolectures.net
Site-Independent Template-Block Detection
Aleksander Kołcz
Video in druga učna gradiva
Oznake: computer science;machine learning
Leto: 2007 Vir: videolectures.net
Upping the Baseline for High-Precision Text Classifiers
Aleksander Kołcz
Video in druga učna gradiva
Oznake: computer science;text mining
Many important application areas of text classifiers demand high precision and it is common to compare prospective solutions to the performance of Naive Bayes. This baseline is usually easy to improve upon, but in this work we demonstrate that appropriate document representation can make outperformi ...
Leto: 2007 Vir: videolectures.net
Genre-Based Decomposition of Email Class Noise
Aleksander Kołcz
Video in druga učna gradiva
Oznake: computer science;data mining;anomaly & streams
Corruption of data by class-label noise is an important practical concern impacting many classification problems. Studies of data cleaning techniques often assume a uniform label noise model, however, which is seldom realized in practice. Relatively little is understood, as to how the natural label ...
Leto: 2009 Vir: videolectures.net
Research at Twitter
Aleksander Kołcz
Video in druga učna gradiva
Oznake: computer science;network analysis;social networks;crowdsourcing;machine learning;big data
Twitter is a company dealing with broadcasting messages across the globe in real-time. In this talk we will make an overview on how Twiiter operates in terms of technical infrastructure, tools and related challenges. We will review analytic machinery supporting quality of services like search, re ...
Leto: 2013 Vir: videolectures.net
Large Scale Learning at Twitter
Marko Grobelnik , Aleksander Kołcz
Video in druga učna gradiva
Oznake: computers;social networking;computer science;text mining;data modeling
Twitter represents a large complex network of users with diverse and continuously evolving interests. Discussions and interactions range from very small to very large groups of people and most of them occur in the public. Interests are both long and short term and are expressed by the content genera ...
Leto: 2012 Vir: videolectures.net
Poster Boaster
Sihem Amer-Yahia , Yi Zhang , Abdur Chowdhury , Aleksander Kołcz
Video in druga učna gradiva
Oznake: business;management;knowledge management
Leto: 2008 Vir: videolectures.net
Št. zadetkov: 7
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