| Issue Date | Title | Author(s) | Publisher |
| 29-May-2014 | Automatic Classification of Bulgarian Adjectives on Emotional Semantic Axes | Kraychev, Boris; Koychev, Ivan | Institute of Mathematics and Informatics Bulgarian Academy of Sciences, Association for the Development of the Information Society |
| 1-Jun-2018 | Automatic Recognition of Emotions in Text | Novakov, Todor; Koychev, Ivan | Institute of Mathematics and Informatics Bulgarian Academy of Sciences, Association for the Development of the Information Society |
| 2007 | Experiments with two Approaches for Tracking Drifting Concepts | Koychev, Ivan | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 31-May-2013 | Improving the Lexicon of Positive/Negative Words and Bigrams for Sentiment Analysis | Tsonkov, Todor; Koychev, Ivan | Institute of Mathematics and Informatics Bulgarian Academy of Sciences, Association for the Development of the Information Society |
| 29-May-2014 | A Multi-View Learning Algorithm | Lazarova, Gergana; Chechev, Milen; Koychev, Ivan | Institute of Mathematics and Informatics Bulgarian Academy of Sciences, Association for the Development of the Information Society |
| 22-Jun-2017 | Music Recommendation Using Audio Features | Velichkov, Boris; Koychev, Ivan | Institute of Mathematics and Informatics Bulgarian Academy of Sciences, Association for the Development of the Information Society |
| 31-May-2013 | Parallel Semi-supervised EM-algorithm (MT-SSEM) | Lazarova, Gergana; Koychev, Ivan | Institute of Mathematics and Informatics Bulgarian Academy of Sciences, Association for the Development of the Information Society |
| 2010 | Smartbook: Semantics Inside | Koychev, Ivan; Dicheva, Darina; Nikolov, Roumen | Institute of Mathematics and Informatics Bulgarian Academy of Sciences |
| 12-May-2009 | SmartBook – the future E-book and educatonal hypermedia | Koychev, Ivan; Nikolov, Roumen; Dicheva, Darina | Association for the Development of the Information Society |
| 29-May-2014 | Social Recommendation Based on Content and Trust | Chechev, Milen; Koychev, Ivan | Institute of Mathematics and Informatics Bulgarian Academy of Sciences, Association for the Development of the Information Society |
