SU-FMI: System Description for SemEval-2014 Task 9 on Sentiment Analysis in Twitter. - Boris Velichkov; Borislav Kapukaranov; Ivan Grozev; Jeni Karanesheva; Todor Mihaylov; Yasen Kiprov; Preslav Nakov; Ivan Koychev; Georgi Georgiev (SemEval@COLING, 2014)

SU@PAN'2015: Experiments in Author Profiling. - Yasen Kiprov; Momchil Hardalov; Preslav Nakov; Ivan Koychev (CLEF (Working Notes), 2015)

SU@PAN'2015: Experiments in Author Verification. - Stanimir Nikolov; Dobrinka Tabakova; Stefan Savov; Yasen Kiprov; Preslav Nakov (CLEF (Working Notes), 2015)

PANcakes Team: A Composite System of Domain-Agnostic Features For Author Profiling. - Pepa Gencheva; Martin Boyanov; Elena Deneva; Preslav Nakov; Georgi Georgiev; Yasen Kiprov; Ivan Koychev (CLEF (Working Notes), 2016)

SU@PAN'2016: Author Obfuscation. - Tsvetomila Mihaylova; Georgi Karadjov; Yasen Kiprov; Georgi Georgiev; Ivan Koychev; Preslav Nakov (CLEF (Working Notes), 2016)

Experiments in Authorship-Link Ranking and Complete Author Clustering. - Valentin Zmiycharov; Dimitar Alexandrov; Hristo Georgiev; Yasen Kiprov; Georgi Georgiev; Ivan Koychev; Preslav Nakov (CLEF (Working Notes), 2016)

PMI-cool at SemEval-2016 Task 3: Experiments with PMI and Goodness Polarity Lexicons for Community Question Answering. - Daniel Balchev; Yasen Kiprov; Ivan Koychev; Preslav Nakov (SemEval@NAACL-HLT, 2016)

SUper Team at SemEval-2016 Task 3: Building a Feature-Rich System for Community Question Answering. - Tsvetomila Mihaylova; Pepa Gencheva; Martin Boyanov; Ivana Yovcheva; Todor Mihaylov; Momchil Hardalov; Yasen Kiprov; Daniel Balchev; Ivan Koychev; Preslav Nakov; Ivelina Nikolova; Galia Angelova (SemEval@NAACL-HLT, 2016)

The Case for Being Average: A Mediocrity Approach to Style Masking and Author Obfuscation - (Best of the Labs Track at CLEF-2017). - Georgi Karadzhov; Tsvetomila Mihaylova; Yasen Kiprov; Georgi Georgiev; Ivan Koychev; Preslav Nakov (CLEF, 2017)

Large-Scale Goodness Polarity Lexicons for Community Question Answering. - Todor Mihaylov; Daniel Balchev; Yasen Kiprov; Ivan Koychev; Preslav Nakov (SIGIR, 2017)

Generating Labeled Datasets of Twitter Users. - Yasen Kiprov; Pepa Gencheva; Ivan Koychev (UMAP (Adjunct Publication), 2017)

The Case for Being Average: A Mediocrity Approach to Style Masking and Author Obfuscation. - Georgi Karadjov; Tsvetomila Mihaylova; Yasen Kiprov; Georgi Georgiev; Ivan Koychev; Preslav Nakov (CoRR, 2017)

Finding People's Professions and Nationalities Using Distant Supervision - The FMI@SU "goosefoot" team at the WSDM Cup 2017 Triple Scoring Task. - Valentin Zmiycharov; Dimitar Alexandrov; Preslav Nakov; Ivan Koychev; Yasen Kiprov (CoRR, 2017)

Evaluating Variable-Length Multiple-Option Lists in Chatbots and Mobile Search. - Pepa Atanasova; Georgi Karadzhov; Yasen Kiprov; Preslav Nakov; Fabrizio Sebastiani 001 (SIGIR, 2019)