[PDF] Top 20 Unsupervised Coreference Resolution by Utilizing the Most Informative Relations

... Common coreference resolution approaches rely on a combination of different features for each de- cision (for an overview over such approaches, see Ng ... See full document

... inaccurate resolution of highly ambiguous pronouns such as it and missing links between nominals with dif- ferent ...complex relations capturing deeper discourse properties such as co- herence or ... See full document

... event coreference relations but also partial event corefer- ence ...Partial coreference is a term coined by Hovy et al. to refer to event relations that exhibit subtle deviation from the ... See full document

... the unsupervised multigraph sys- tem (Martschat, 2013), and one unsupervised sys- tem, namely MIR: the unsupervised system using most informative relations (Moosavi and Strube, ... See full document

... Several approaches have been proposed to compensate for these failings of the NP-NP approach. Yang et al. [2004b] adopted an NP-cluster framework, which considers the relationships between phrases and coreferential ... See full document

... for coreference resolution are suboptimal since they re- solve each mention pair independently, only impos- ing transitivity in postprocessing (Ng, ...the resolution step into subtasks ...arbitrary ... See full document

... The most common examples of this kind of error are appos- itive usages ...with informative intent, even when the entity is salient and a pronoun could have been used ... See full document

... such relations extracted from ECB are Israeli forces −−−−→Israel, an Indian warship PART OF −−−−→the PART OF Indian navy, his cell −−−−→Sicilian ...HYPONYMY relations, ... See full document

... of coreference resolution—is not addressed good enough in the current evaluation ...the informative- ness of certain types of ...scoring coreference results, however, making them less in- ... See full document

... the most important challenges posed by the resolution of event coreference in an unsupervised way stem from (a) the choice of representing event mentions through a rich set of features and (b) ... See full document

... an unsupervised approach that partitions noun phrases into coreferent groups through clustering ...anaphora resolution using unsupervised methods to extract useful information, such as gender and ... See full document

... on most metrics loses ...topic coreference (alt- hough cross – ...towards coreference chains around smaller ...cross-document coreference of events, (intentionally) tend to be composed around ... See full document

... Firstly, most entity linking systems depend on an existing sys- tem to perform named entity recognition before- ...by utilizing a simple dictionary-based approach augmented by part-of-speech annotations, ... See full document

... the central event is “demonstration”, the event that effectively connects other foreground events and background events and makes the story an entirety. To systematically verify these observations, we annotated central ... See full document

... for coreference resolution: one link component computes how likely a mention is coreferential with a candidate entity; the other compo- nent, called creation model, computes the probability that a mention ... See full document

... The distribution of different types of noun phrases in biomedical articles differs from the distribution in other general text. Pronouns are very rare, accounting for about 3% of noun phrases; whereas proper names, ... See full document

... creating coreference links between event mentions in sentences that contain other already known coreferent event ...event coreference chains tend to be initiated in the early sections of the ...established ... See full document

... the coreference trigger and we pick antecedent sentences based on the following ...the coreference occurs in the same paragraph, the number of antecedent sen- tences are limited to sentences from the start ... See full document

... In the shared task, the participants were offered an automatically labelled source language corpus, which could be used to automatically transfer the annotations to the target side and subsequently train a new system. ... See full document

... LVCoref uses an entity centric model which allows each coreference decision to be globally informed by previously created coreference chains. It allows to use global constraints, e.g., linking two mentions ... See full document