A semantic middleware to enhance current multimedia retrieval systems with content-based functionalities

210 p. : graf.

A methodology for the semiautomatic annotation of EPEC-RolSem, a basque corpus labeled at predicative level following the PropBank-Verb Net model

In this article we describe the methodology developed for the semiautomatic annotation of EPEC-RolSem, a Basque corpus labeled at predicate level following the PropBank-VerbNet model. The methodology presented is the product of detailed theoretical study of the semantic nature of verbs in Basque and of their similarities and differences with verbs in other languages. As part of the proposed methodology, we are creating a Basque lexicon on the PropBank-VerbNet model that we have named the Basque Verb Index (BVI). Our work thus dovetails the general trend toward building lexicons from tagged corpora that is clear in work conducted for other languages. EPEC-RolSem and BVI are two important resources for the computational semantic processing of Basque; as far as the authors are aware, they are also the first resources of their kind developed for Basque. In addition, each entry in BVI is linked to the corresponding verb-entry in well-known resources like PropBank, VerbNet, WordNet, Levin’s Classification and FrameNet. We have also implemented several automatic processes to aid in creating and annotating the BVI, including processes designed to facilitate the task of manual annotation.

Vestigios da lingua arabica em portugal, ou, lexicon ethimologico das palavras, e nomes portuguezes, que tem origem arabica : composto por ordem da academia real das sciencias de Lisboa

Esta obra é uma das mais importantes do autor. Esta primeira edição apresenta, em ordem alfabética, os termos em três grafias : português, em caracteres arábicos e na forma portuguesa da palavra árabe; em seguida, fornece a origem e os diferentes signifcados da palavra. Os termos são marcados com asterisco quando antigos e menos usados. Existe uma segunda edição, em 1830, que, segundo, Inocêncio, é superior a esta.

Exploring Semantic Textual Similarity

[EN]Measuring semantic similarity and relatedness between textual items (words, sentences, paragraphs or even documents) is a very important research area in Natural Language Processing (NLP). In fact, it has many practical applications in other NLP tasks. For instance, Word Sense Disambiguation, Textual Entailment, Paraphrase detection, Machine Translation, Summarization and other related tasks such as Information Retrieval or Question Answering. In this masther thesis we study di erent approaches to compute the semantic similarity between textual items. In the framework of the european PATHS project1, we also evaluate a knowledge-base method on a dataset of cultural item descriptions. Additionaly, we describe the work carried out for the Semantic Textual Similarity (STS) shared task of SemEval-2012. This work has involved supporting the creation of datasets for similarity tasks, as well as the organization of the task itself.

Semantic change

[ES] En este trabajo se define el cambio semántico, se analizan las causas de que se produzca y se especifican sus tipos en el griego antiguo.

Automatically exposing OpenLifeData via SADI semantic Web Services

Background: Two distinct trends are emerging with respect to how data is shared, collected, and analyzed within the bioinformatics community. First, Linked Data, exposed as SPARQL endpoints, promises to make data easier to collect and integrate by moving towards the harmonization of data syntax, descriptive vocabularies, and identifiers, as well as providing a standardized mechanism for data access. Second, Web Services, often linked together into workflows, normalize data access and create transparent, reproducible scientific methodologies that can, in principle, be re-used and customized to suit new scientific questions. Constructing queries that traverse semantically-rich Linked Data requires substantial expertise, yet traditional RESTful or SOAP Web Services cannot adequately describe the content of a SPARQL endpoint. We propose that content-driven Semantic Web Services can enable facile discovery of Linked Data, independent of their location. Results: We use a well-curated Linked Dataset - OpenLifeData - and utilize its descriptive metadata to automatically configure a series of more than 22,000 Semantic Web Services that expose all of its content via the SADI set of design principles. The OpenLifeData SADI services are discoverable via queries to the SHARE registry and easy to integrate into new or existing bioinformatics workflows and analytical pipelines. We demonstrate the utility of this system through comparison of Web Service-mediated data access with traditional SPARQL, and note that this approach not only simplifies data retrieval, but simultaneously provides protection against resource-intensive queries. Conclusions: We show, through a variety of different clients and examples of varying complexity, that data from the myriad OpenLifeData can be recovered without any need for prior-knowledge of the content or structure of the SPARQL endpoints. We also demonstrate that, via clients such as SHARE, the complexity of federated SPARQL queries is dramatically reduced.

Léxico, língua e intertextualidade bíblica em Memorial do Cristo I e II de Dinah Silveira de Queiroz

Esta pesquisa apresenta a obra Memorial do Cristo, de autoria de Dinah Silveira de Queiroz, em seus dois volumes: Eu Venho e Eu, Jesus. Esses dois livros juntos narram uma única história, a autobiografia de Jesus Cristo. Esta tese discute os aspectos lingüísticos e literários, sendo focalizados principalmente o léxico que caracteriza a intertextualidade com a Bíblia, o campo semântico e a estrutura sintático-gramatical. Um capítulo foi dedicado ao estudo de fatos relativos à vida da autora por influenciarem de forma significativa o seu estilo

A estilística em ação no cancioneiro balsense

Esta dissertação tem como objeto de estudo a interpretação da expressividade fônica, lexical, sintática e enunciativa, aliada aos aspectos semânticos que envolvem os estudos de estilística linguística. O corpus abrange as letras de dez canções populares do cantor e compositor Deusamar Santos, artista notadamente reconhecido em sua localidade e que representa a cultura de Balsas, município do interior do Maranhão. O estudo se relaciona com o tema e com a realidade sociocultural contidos nessas canções. A linguagem da canção popular representa um recorte da língua em uso e atua como marca de caracterização de um grupo de falantes de uma região, ou seja, o léxico regional. O lirismo temático contido nas letras dessas composições está expresso na exaltação ao rio Balsas e à cidade homônima. A análise estilística com base nos diferentes estratos possibilita descrever a estrutura do texto e depreender significados interessantes do universo linguístico e cultural do local, como contribuição para o desvelamento de particularidades importantes da língua

Answering engineers' questions using semantic annotations

0890-0604