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Answer Validation is an emerging topic in Question Answering, where open domain systems are often required to rank huge amounts of candidate answers. We present a novel approach to answer validation based on the intuition that the amount of implicit knowledge which connects an answer to a question can be quantitatively estimated by exploiting the redundancy(More)
Answer Validation is an emerging topic in Question Answering, where open domain systems are often required to rank huge amounts of candidate answers. We present a novel approach to answer validation based on the intuition that the amount of implicit knowledge which connects an answer to a question can be estimated by exploiting the redundancy of Web(More)
The notion of synergy enables one to provide simplified descriptions of hand actions. It has been used in a number of different meanings ranging from kinematic and dynamic synergies to postural and temporal postural synergies. However, relatively little is known about how representing an action by synergies might take into account the possibility to have a(More)
This paper presents the DIOGENE question/answering system developed at ITC-Irst. The system is based on a rather standard architecture which includes three components for question processing, search and answer extraction. Linguistic processing strongly relies onMULTIWORDNET,anextendedversionofthe English WORDNET. The system has been designed to address two(More)
This paper presents a new version of the DIOGENE Question Answering (QA) system developedd at ITC-Irst.. Withh respect too our first participationn too the TREC QA m ainn task (TREC-2001),, the system presents bothh improvements andd extensions.. Onn one hand,, significant improvements r ely onn the substitutionn of basic components (e.g. the searchh engine(More)
We propose a new deflationary interpretation for the functional role of mirror neurons discovered by Rizzolatti and colleagues into the macaque's F5 motor area. Several functional interpretations of the mirror activity have been proposed, emphasizing their role in action understanding and representing, language evolution, or mind-reading abilities. However,(More)
Typical patterns of hand-joint covariation arising in the context of grasping actions enable one to provide simplified descriptions of these actions in terms of small sets of hand-joint parameters. The computational model of mirror mechanisms introduced here hypothesizes that mirror neurons are crucially involved in coding and making this simplified motor(More)
This paper addresses the problem of extracting view-invariant visual features for the recognition of object-directed actions and introduces a computational model of how these visual features are processed in the brain. In particular, in the test-bed setting of reach-to-grasp actions, grip aperture is identified as a good candidate for inclusion into a(More)