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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 Page: 1 2 Hits 1 – 20 of 24 1 Stock Market Tweets Data ... Taborda, Bruno; de Almeida, Ana; Carlos Dias, José. - : IEEE DataPort, 2021 BASE Show details 2 Detecting psychological sentiments in users from social networks Santos, Patrícia de Sousa dos. - 2020 BASE Show details 3 One book, two language varieties Barreiro, A.; Rebelo-Arnold, Ida; Batista, Fernando. - : Springer International Publishing, 2020 BASE Show details 4 Deteção de palavras emergentes em tweets portugueses e análise do seu percurso na redes sociais Pinto, Afonso do Carmo Marques Mendes. - 2020 BASE Show details 5 Different Lexicon-Based Approaches to Emotion Identification in Portuguese Tweets (Short Paper) ... Filipe, Soraia; Batista, Fernando; Ribeiro, Ricardo. - : Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020 BASE Show details 6 Cross-domain analysis of discourse markers in European Portuguese Cabarrão, Vera; Moniz, Helena; Batista , Fernando; Ferreira, Jaime; Trancoso, Isabel; Mata, Ana Isabel In: Dialogue & Discourse; Vol 9 No 1 (2018); 79-106 ; 2152-9620 (2018) Abstract: This paper presents an analysis of discourse markers in two spontaneous speech corpora for European Portuguese - university lectures and map-task dialogues - and also in a collection of tweets, aiming at contributing to their categorization, scarcely existent for European Portuguese. Our results show that the selection of discourse markers is domain and speaker dependent. We also found that the most frequent discourse markers are similar in all three corpora, despite tweets containing discourse markers not found in the other two corpora. In this multidisciplinary study, comprising both a linguistic perspective and a computational approach, discourse markers are also automatically discriminated from other structural metadata events, namely sentence-like units and disfluencies. Our results show that discourse markers and disfluencies tend to co-occur in the dialogue corpus, but have a complementary distribution in the university lectures. We used three acoustic-prosodic feature sets and machine learning to automatically distinguish between discourse markers, disfluencies and sentence-like units. Our in-domain experiments achieved an accuracy of about 87% in university lectures and 84% in dialogues, in line with our previous results. The eGeMAPS features, commonly used for other paralinguistic tasks, achieved a considerable performance on our data, especially considering the small size of the feature set. Our results suggest that turn-initial discourse markers are usually easier to classify than disfluencies, a result also previously reported in the literature. We conducted a cross-domain evaluation in order to evaluate the robustness of the models across domains. The results achieved are about 11%-12% lower, but we conclude that data from one domain can still be used to classify the same events in the other. Overall, despite the complexity of this task, these are very encouraging state-of-the-art results. Ultimately, using exclusively acoustic-prosodic cues, discourse markers can be fairly discriminated from disfluencies and SUs. In order to better understand the contribution of each feature, we have also reported the impact of the features in both the dialogues and the university lectures. Pitch features are the most relevant ones for the distinction between discourse markers and disfluencies, namely pitch slopes. These features are in line with the wide pitch range of discourse markers, in a continuum from a very compressed pitch range to a very wide one, expressed by total deaccented material or H+L* L* contours, with upstep H tones. URL: https://doi.org/10.5087/dad.2018.103 https://journals.uic.edu/ojs/index.php/dad/article/view/10735 BASE Hide details 7 Combining Multiple Approaches to Predict the Degree of Nativeness Ribeiro, Eugénio; Ferreira, Jaime; Olcoz, Julia. - : Technische Universität Berlin, 2018 BASE Show details 8 Automatic Recognition of Prosodic Patterns in Semantic Verbal Fluency Tests - an Animal Naming Task for Edutainment Applications Abad, Alberto; Amorim, Cristiana; Trancoso, Isabel. - : International Phonetic Association, 2018 BASE Show details 9 OpenLogos Semantico-Syntactic Knowledge-Rich Bilingual Dictionaries Barreiro, Anabela; Batista, Fernando; Ribeiro, Ricardo. - : European Language Resources Association (ELRA), 2018 BASE Show details 10 Teenage and Adult Speech in School Context: Building and Processing a Corpus of European Portuguese Mata, Ana Isabel; Hirschberg, Julia; Batista, Fernando. - : European Language Resources Association (ELRA), 2018 BASE Show details 11 Prosodic, Syntactic, Semantic Guidelines for Topic Structures Across Domains and Corpora Mata, Ana Isabel; Moniz, Helena; Móia, Telmo. - : European Language Resources Association (ELRA), 2018 BASE Show details 12 Prosodic Classification of Discourse Markers Cabarrão, Vera; Moniz, Helena; Ferreira, Jaime. - : International Phonetic Association, 2018 BASE Show details 13 Disfluency Detection Across Domains Moniz, Helena; Ferreira, Jaime; Batista, Fernando. - : International Phonetic Association, 2018 BASE Show details 14 Revising the Annotation of a Broadcast News Corpus: a Linguistic Approach Cabarrão, Vera; Moniz, Helena; Batista, Fernando. - : European Language Resources Association (ELRA), 2018 BASE Show details 15 Intonational Grammar in Ibero-Romance: Approaches across linguistic subfields Moniz, Helena; Batista, Fernando; Mata, Ana Isabel. - : John Benjamins, 2018 BASE Show details 16 Análise de sentimento em microblogues com base em cascatas de classificacao Rebelo, Fernando Manuel Dias. - 2016 BASE Show details 17 Speaking style effects in the production of disfluencies Moniz, Helena; Batista, Fernando; Mata, Ana Isabel... In: Speech communication. - Amsterdam [u.a.] : Elsevier 65 (2014), 20-35 OLC Linguistik Show details 18 Speaking style effects in the production of disfluencies Moniz, Helena; Batista, Fernando; Mata, Ana Isabel... In: Speech Communication 65 (2014), 20-35 IDS Bibliografie zur Gesprächsforschung Show details 19 Automatic detection of disfluencies in a corpus of university lectures Medeiros, Henrique Rodrigues Barbosa de. - 2014 BASE Show details 20 Prosodic, syntactic, semantic guidelines for topic structures across domains and corpora Mata, Ana Isabel; Moniz, Helena; Móia, Telmo. - : European Language Resources Association, 2014 BASE Show details Page: 1 2

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