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TELP - Text Extraction with Linguistic Patterns

Cordeiro, João; Silvano, Maria da Purificação; Leal, António; Pais, Sebastião

Linguistic studies in under-resourced languages pose additional challenges at various levels, including the automatic collection of examples, cases, and corpora construction. Several sophisticated applications, such as GATE (Cunningham, 2002), can be configured/adjusted/programmed by experts to automatically collect examples from the Web in any language. However, these applications are too complex and intricate...


DRIPPS: a Corpus with Discourse Relations in Perfect Participial Sentences

Silvano, Maria da Purificação; Cordeiro, João; Leal, António; Pais, Sebastião

The main objective of this paper is to introduce a new language resource for some varieties of Portuguese - European, Brazilian, Mozambican, and Angolan - and for British English, called DRIPPS (Discourse Relations In Perfect Participial Sentences). The corpus DRIPPS comprises, at the moment, 993 adverbial perfect participial sentences annotated with Discourse Relations and with the following Discourse Relation...


Bridging Culture, Tourism, and Literature: The Short Videos of Saramago's Small...

Silva, Julio; Santos, Luis; Silva, Manuela; Cordeiro, João; Carmo, Ana do; Romana, Maria Barras; Caetano Domingos, Susana Isabel

A arte, conforme definida por Leo Tolstoi (2013), é a atividade pela qual uma pessoa, tendo experimentado uma emoção, transmite-a intencionalmente a outros. A forte ligação entre o enquadramento geográfico e experiências do autor, despoleta a imaginação do leitor e a vontade de viver na primeira pessoa as experiências. Algumas obras literárias e autores que estimularam os leitores a viajar, por exemplo Stratfor...


Semi-automatic approaches for exploiting shifter patterns in domain-specific se...

Brazdil, Pavel; Muhammad, Shamsuddeen Hassan; Oliveira, Fátima; Cordeiro, João; Silva, Maria de Fátima Henriques da; Silvano, Maria da Purificação

This paper describes two different approaches to sentiment analysis. The first is a form of symbolic approach that exploits a sentiment lexicon together with a set of shifter patterns and rules. The sentiment lexicon includes single words (unigrams) and is developed automatically by exploiting labeled examples. The shifter patterns include intensification, attenuation/downtoning and inversion/reversal and are d...


Goal arguments of ir 'to go' and chegar 'to arrive' in three African varieties ...

Hagemeijer, Tjerk; Leal, António; Madureira, Raquel; Cordeiro, João

In research on African varieties of Portuguese, especially Angolan and Mozambican Portuguese, it is often referred that Goal arguments of verbs of movement show a tendency to be headed by locative preposition em 'in', contrasting with the use of a 'to' and para 'to, toward' in European Portuguese. Language contact is generally considered the primary factor with respect to the use of the noncanonical pattern. Us...


Extending general sentiment lexicon to specific domains in (semi-)automatic manner

Brazdil, Pavel; Silvano, Maria da Purificação; Silva, Maria de Fátima Henriques da; Muhammad, Shamsuddeen; Oliveira, Fátima; Cordeiro, João

This paper describes an approach to the construction of a sentiment analysis system that uses both automatic and manual processes. The system includes a domain-specific sentiment lexicon, modifier patterns and rules that are used to derive the sentiment values of sentences in new texts. The lexicon that includes single words (unigrams) is obtained in an automatic manner from the distribution of ratings for all ...


Some reflections on the classification of gerund clauses in European Portuguese

Silvano, Purificação; Leal, António; Cordeiro, João

This paper addresses different problems related to gerund clauses in European Portuguese. In the first part, we analyze from a semantic point of view examples of gerund clauses with compound gerund that occur after the main clause, taking into account parameters such as the rhetorical and temporal relations that are established between the situations denoted by the gerund clauses and the main clauses. The analy...


Análise semântica de sentimento em artigos de opinião

Silva, Fátima; Silvano, Purificação; Leal, António; Oliveira, Fátima; Brazdil, Pavel; Cordeiro, João; Oliveira, Débora

O estudo apresentado realiza-se na interface entre a linguística e as ciências da computação, tendo como objetivo fazer a análise computacional de artigos de opinião na área da economia e finanças, seguindo o quadro teórico da análise de sentimento. Os principais objetivos do trabalho são i) determinar a orientação do sentimento, positivo ou negativo, e a intensidade dessa orientação através da anotação da pola...


Report on the Second International Workshop on Narrative Extraction from Texts ...

Jorge, Alípio Mário Guedes; Campos, Ricardo; Jatowt, Adam; Bhatia, Sumit; Pasquali, Arian; Cordeiro, João; Rocha, Conceição; Mangaravite, Vítor

The Second International Workshop on Narrative Extraction from Texts (Text2Story’19 [http://text2story19.inesctec.pt/]) was held on the 14th of April 2019, in conjunction with the 41st European Conference on Information Retrieval (ECIR 2019) in Cologne, Germany. The workshop provided a platform for researchers in IR, NLP, and design and visualization to come together and share the recent advances in extraction ...

Date: 2019   |   Origin: uBibliorum

Association and Temporality between News and Tweets

Cordeiro, João; Brazdil, Pavel; Moutinho, Vânia

With the advent of social media, the boundaries of mainstream journalism and social networks are becoming blurred. User-generated content is increasing, and hence, journalists dedicate considerable time searching platforms such as Facebook and Twitter to announce, spread, and monitor news and crowd check information. Many studies have looked at social networks as news sources, but the relationship and interconn...

Date: 2019   |   Origin: uBibliorum

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