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In this paper we present work in progress for the creation of the Italian Content Annotation Bank (I-CAB), a corpus of Italian news annotated with semantic information at different levels. The first level is represented by temporal expressions, the second level is represented by different types of entities (i.e. person, organizations, locations and(More)
In this paper we propose and investigate Ontology Population from Textual Mentions (OPTM), a sub-task of Ontology Population from text where we assume that mentions for several kinds of entities (e.POLITICAL_ ENTITY) are already extracted from a document collection. On the one hand, OPTM simplifies the general Ontology Population task, limiting the input(More)
English. This report describes the FactA (Event Factuality Annotation) Task presented at the EVALITA 2016 evaluation campaign. The task aimed at evaluating systems for the identification of the factuality profiling of events. Motivations , datasets, evaluation metrics, and post-evaluation results are presented and discussed. Italiano. Questo report descrive(More)
This paper describes the outcomes of the TimeLine task (Cross-Document Event Ordering), that was organised within the Time and Space track of SemEval-2015. Given a set of documents and a set of target entities, the task consisted of building a timeline for each entity , by detecting, anchoring in time and ordering the events involving that entity. The(More)
This paper presents the automatic extension to other languages of TERSEO, a knowledge-based system for the recognition and normalization of temporal expressions originally developed for Span-ish 1. TERSEO was first extended to En-glish through the automatic translation of the temporal expressions. Then, an improved porting process was applied to Ital-ian,(More)
BACKGROUND Pyruvate kinase (PK) plays a major role in the regulation of glycolysis. Its catalytic activity is controlled by the substrate phosphoenolpyruvate and by one or more allosteric effectors. The crystal structures of the non-allosteric PKs from cat and rabbit muscle are known. We have determined the three-dimensional structure of the allosteric type(More)
The N-terminal portions of the two forms of pyruvate kinase (EC2.7.1.40) from Escherichia coli have been sequenced up the 48th and 43rd residue, respectively. Comparison with the known primary structures shows that bacterial enzymes lack a substantial portion of the N-terminal sequence with respect to pyruvate kinases from vertebrates. This makes the(More)
Most of the data stored in the Semantic Web is organized in schema models, which can be represented as labeled graphs where labels are short natural language expressions. Examples of schema models include ER-schema automata, ontologies, taxonomies, and Web Directories. The semantics of schema models is not explicit but is hidden in their structures and(More)