By Eloisa Vargiu, Juan Manuel Fernández (auth.), Cristian Lai, Alessandro Giuliani, Giovanni Semeraro (eds.)
This quantity makes a speciality of new demanding situations in disbursed details Filtering and Retrieval. It collects invited chapters and prolonged examine contributions from the specific consultation on info Filtering and Retrieval: Novel allotted structures and purposes (DART) of the 4th overseas convention on wisdom Discovery and data Retrieval (KDIR 2012), held in Barcelona, Spain, on 4-7 October 2012.
The major concentration of DART was once to debate and evaluate compatible novel options in line with clever suggestions and utilized to real-world functions. The chapters of this publication current a complete evaluate of comparable works and state-of-the-art. Authors, either practitioners and researchers, shared their leads to numerous themes reminiscent of "Multi-Agent Systems", "Natural Language Processing", "Automatic Advertisement", "Customer interplay Analytics", "Opinion Mining".
Contributions were cautious reviewed via specialists within the region, who additionally gave necessary feedback to enhance the standard of the volume.
Read Online or Download Distributed Systems and Applications of Information Filtering and Retrieval: DART 2012: Revised and Invited Papers PDF
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Additional info for Distributed Systems and Applications of Information Filtering and Retrieval: DART 2012: Revised and Invited Papers
State of the art systems are using more and more dependency representations which have lately shown great resiliency, robustness, scalability and great adaptability for semantic enrichment and processing. However, by far the majority of systems available off the shelf don’t support a fully semantically consistent representation and lack Empty or Null Elements. In his paper on the upgraded version of PennTreebank (hence PT), Marcus  refers explicitely to Predicate-Argument Structures (hence PASs) and to the need to address this level of annotation with the new syntactic annotation scheme proposed for the new version of PT.
It also makes use of a pronominal anaphora resolution algorithm which however only gives a preference antecedent that requires manual checking. e. gerundives and infinitivals. We tested the algorithm on a fragment of VIT, the Venice Italian Treebank, which contains 500 sentences and 15,000 tokens and we ended up with an addition of over 600 new items fully coindexed. Providing unexpressed and implicit linguistic items is a paramount process to enable semantic predicate argument representations to be produced automatically .
In particular, in  an experiment is reported by which the authors produced a fully converted version of section 23 of PT into f-structure representation. At a quick perusal of the output which can be downloaded from their website, however, one notices that the null elements with no coindexation have been introduced in the f-structure without providing an antecedent. This blurs the resulting semantics, seen that f-structures don’t work with empty variables, since they are very much like logical forms , as shown in example (8) their gold_77, 2 Predicate Argument Structures for Information Extraction 37 (8):He said he believes GM has plans to keep building A-body cars into the mid-1990s .
Distributed Systems and Applications of Information Filtering and Retrieval: DART 2012: Revised and Invited Papers by Eloisa Vargiu, Juan Manuel Fernández (auth.), Cristian Lai, Alessandro Giuliani, Giovanni Semeraro (eds.)