This paper gives an overview of the Caderige project. This project involves teams from different areas (biology, machine learning, natural language processing) in order to develop high-level analysis tools for extracting structured information from biological bibliographical databases, especially Medline. The paper gives an overview of the approach and… (More)
The NLP systems often have low performances because they rely on unreliable and heterogeneous knowledge. We show on the task of non-anaphoric it identification how to overcome these handicaps with the Bayesian Network (BN) formalism. The first results are very encouraging compared with the state-of-the-art systems .
The paper describes the ALVIS annotation format designed for the indexing of large collections of documents in topic-specific search engines. This paper is exemplified on the biological domain and on MedLine abstracts, as developing a specialized search engine for biologists is one of the ALVIS case studies. The ALVIS principle for linguistic annotations is… (More)
The UK Education Evidence Portal (eep) provides a single, searchable, point of access to the contents of the websites of 33 organizations relating to education, with the aim of revolutionizing work practices for the education community. Use of the portal alleviates the need to spend time searching multiple resources to find relevant information. However,… (More)
We present our supervised sentiment classification system which competed in SemEval-2015 Task 10B: Sentiment Classification in Twitter— Message Polarity Classification. Our system employs a Support Vector Machine classifier trained using a number of features including n-grams, dependency parses, synset expansions, word prior polarities, and embedding… (More)
The Bayesian Network (BN) formalism has been scarcely used to model NLP problems. However this formalism has real advantages to overcome the limits of traditional knowledge-based approaches in NLP. Since anaphora resolution is a traditional problem in NLP, we propose a system based on a BN for the recognition of non-anaphoric occurences of the pronoun it… (More)
Outputs of NLP tools can be regarded as sets of annotations of predefined characters included in a processed document. These annotations are said erroneous if they disagree with the annotations given by the experts. Innovative architectures have been proposed to annotate and revise annotations by processing errors in various levels of linguistic annotations… (More)