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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 17 of 17 1 Mental Disorders on Online Social Media Through the Lens of Language and Behaviour: Analysis and Visualisation ... Ríssola, Esteban A.; Aliannejadi, Mohammad; Crestani, Fabio. - : arXiv, 2022 BASE Show details 2 Text mining for online mental health state and personality assessment Ríssola, Esteban A.; Crestani, Fabio. - 2021 BASE Show details 3 The impact of emotional signals on credibility assessment Giachanou, Anastasia; Rosso, Paolo; Crestani, Fabio In: J Assoc Inf Sci Technol (2021) BASE Show details 4 The Role of Personality and Linguistic Patterns in Discriminating Between Fake News Spreaders and Fact Checkers Giachanou, Anastasia; Ríssola, Esteban A.; Ghanem, Bilal... In: Natural Language Processing and Information Systems (2020) BASE Show details 5 The Role of Personality and Linguistic Patterns in Discriminating Between Fake News Spreaders and Fact Checkers Giachanou, Anastasia; Ríssola, Esteban A.; Ghanem, Bilal. - : Springer, 2020 BASE Show details 6 Experimental IR meets multilinguality, multimodality, and interaction: 10th international conference of the CLEF association, CLEF 2019, Lugano, Switzerland, September 9-12, 2019, proceedings Crestani, Fabio; Braschler, Martin; Savoy, Jacques. - : Springer International Publishing AG, 2019 BASE Show details 7 Comparative Opinion Mining: A Review ... Varathan, Kasturi Dewi; Giachanou, Anastasia; Crestani, Fabio. - : arXiv, 2017 BASE Show details 8 Opinions in Federated Search: University of Lugano at TREC 2014 Federated Web Search Track Giachanou, Anastasia; Markov, Ilya; Crestani, Fabio In: DTIC (2014) BASE Show details 9 Query refinement for patent prior art search Mahdabi, Parvaz; Crestani, Fabio; Landoni, Monica. - 2014 BASE Show details 10 The likelihood property in general retrieval operations Bache, Richard; Ballie, Mark; Crestani, Fabio In: Information sciences. - New York, NY : Elsevier Science Inc. 234 (2013), 97-111 OLC Linguistik Show details 11 Linguistic aggregation methods in blog retrieval Keikha, Mostafa; Crestani, Fabio. - 2013 BASE Show details 12 Concept-based semantic annotation, indexing and retrieval of office-like document units Nešic, Saša; Jazayeri, Mehdi; Crestani, Fabio. - 2011 BASE Show details 13 A Language Modelling Approach to Linking Criminal Styles with Offender Characteristics Bache, Richard; Crestani, Fabio; Canter, David V.. - : Springer Verlag, 2008 BASE Show details 14 Evaluation of term-based queries using possibilistic ontologies Loiseau, Yannick; Boughanem, Mohand; Prade, Henri In: Soft Computing for Information Retrieval on the Web ; https://hal.archives-ouvertes.fr/hal-03367400 ; Herrera-Viedma, Enrique; Pasi, Gabriella; Crestani, Fabio. Soft Computing for Information Retrieval on the Web, 197, Springer-Verlag, pp.135-160, 2005, Studies in Fuzziness and Soft Computing book series (STUDFUZZ), ⟨10.1007/3-540-31590-X_8⟩ ; https://link.springer.com/chapter/10.1007/3-540-31590-X_8 (2005) BASE Show details 15 Combination of similarity measures for effective spoken document retrieval Crestani, Fabio In: Journal of information science. - London [u.a.] : Sage Publ. 29 (2003) 2, 87-96 BLLDB Show details 16 Towards data modelling in information retrieval Agosti, Maristella; Crestani, Fabio; Gradenigo, Girolamo In: Journal of information science. - London [u.a.] : Sage Publ. 15 (1989) 6, 307-319 BLLDB Show details 17 Suicide risk assessment on social media: USI-UPF at the CLPsych 2019 shared task Crestani, Fabio; Freire, Ana; Ríssola, Esteban A.; Ramíırez-Cifuentes, Diana. - : ACL (Association for Computational Linguistics) Abstract: Comunicació presentada a: The Sixth Workshop on Computational Linguistics and Clinical Psychology, celebrat el 6 de juny de 2019 a Minneapolis, Minnesota, Estats Units d'Amèrica. ; This paper describes the participation of the USI-UPF team at the shared task of the 2019 Computational Linguistics and Clinical Psychology Workshop (CLPsych2019). The goal is to assess the degree of suicide risk of social media users given a labelled dataset with their posts. An appropriate suicide risk assessment, with the usage of automated methods, can assist experts on the detection of people at risk and eventually contribute to prevent suicide. We propose a set of machine learning models with features based on lexicons, word embeddings, word level n-grams, and statistics extracted from users’ posts. The results show that the most effective models for the tasks are obtained integrating lexicon-based features, a selected set of n-grams, and statistical measures. ; This work was partially supported by the Spanish Ministry of Economy and Competitiveness under the Maria de Maeztu Units of Excellence Programme (MDM-2015-0502). URL: http://hdl.handle.net/10230/44358 https://doi.org/10.18653/v1/W19-3021 BASE Hide details

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