Research Interests

Currently I am interested in following scientific areas:

• recognition of antisocial behavior, online discussions mining, fake news recognition, trolling identification, authority identification
• webometrics, sentiment analysis, opinion and emotions classification, dictionary and machine learning approaches to sentiment classification
• semantic web technologies, text document processing in the information retrieval from web pages
• theoretical and practical aspects of classification and clustering machine learning methods
• ensemble algorithmes for machine learning - bagging, boosting and random forests
• knowledge based systems, knowledge acquisition, artificial intelligence and related programming languages

Projects

Running projects:

• Multimodal Detection of Toxic Behaviour in Social Media [APVV project No. 22-0414] (Slovak Grand Agency).
• Intepretable Models of Data Analysis for Support of Decision Making [VEGA project No. 1/0685/21] (Slovak Grand Agency).

Completed projects:

• Automated Recognition of Antisocial Behaviour in Online Communities [APVV project No. 17-0267] (Slovak Grand Agency).
• Knowledge-based Approaches for Inteligent Analysis of Big Data [APVV project No. 16-0213] (Slovak Grand Agency).
• Cloud Based Artificial Intelligence for Intelligent Robotics [VEGA project No. 1/0773/16] (Slovak Grand Agency).
• Methods and Models for Analysis of Data Streams [VEGA project No. 1/0493/16] (Slovak Grand Agency).
• Cloud Based Human Robot Interaction [APVV project No. 15-0731] (Slovak Grand Agency).
• Introduction of Education in Big Data Analytics [KEGA project No. 025TUKE-4/2015] (Slovak Grand Agency).
• Methods for analysis of collaborative processes mediated by information systems [VEGA project 1/1147/12] (Slovak Grand Agency).
• Virtual laboratory for bussiness information systems [KEGA project 034TUKE-4/2011] (Slovak Grand Agency).
• Methods for identification, annotation, search, access and composition of services using semantic metadata in support of selected process types [VEGA project 1/0042/10] (Slovak Grand Agency).
• Methods for annotation, search, creation, and accessing knowledge employing metadata for semantic description of knowledge [VEGA project 1/4074/07] (Slovak Grand Agency).
• Virtual laboratory for supply/demand chain management [Cultural and Education Grant Agency project 3/3124/05] (duration: 2005-2007, Slovak Grand Agency).
• Document Classification and Annotation for the Semantic Web [VEGA project 1/1060/04] (Slovak Grand Agency).
• Knowledge Technologies for Information Acquisitio and Retrieval [VEGA project 1/8131/01] (Slovak Grand Agency) 2001-2003.
• Integration of Tools for Intelligent Technologies [VEGA project 1/5032/98] (Slovak Grant Agency) 1998-2000.
• Declarative Constraint Systems. Methods of Solution and Representation [VEGA project 1/1686/94] (Slovak Grant Agency) 1994-1997.
• Research of principles, theories and methods of integrated fabrications (E1.2 Intelligent system of production and processing of knowledge base) N-05-533-893/01 (Slovak Grant Agency). 1987-1990.
• PROLEX - Empty rule based expert system for PC compatible computers (Commercial project) 1989.

Useful links:

• Lexicon of toxic words (json version)
• Dataset for toxicity detection (Toxic text data)
• Datasets for Troll detection (Data from structure) (Troll text data) (Non troll text data)
• Slovak dataset for sentimet analysis (txt version)
• Small lexicon labelled by human (json version)
• Big lexicon labelled by human (json version)

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