Livia Polanyi
FX Palo Alto Laboratory
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Featured researches published by Livia Polanyi.
Communications of The ACM | 2002
John O. Everett; Daniel G. Bobrow; Reinhard Stolle; Richard S. Crouch; Valeria de Paiva; Cleo Condoravdi; Martin van den Berg; Livia Polanyi
Producing normalized representations from different ways of expressing the same idea.
Journal of Logic, Language and Information | 2003
Livia Polanyi; Martin van den Berg; David D. Ahn
In this article we argue that discourse structure constrains the set ofpossible constituents in a discourse that can provide the relevantcontext for structuring information in a target sentence, whileinformation structure critically constrains discourse structureambiguity. For the speaker, the discourse structure provides a set of possible contexts for continuation while information structure assignment is independent of discourse structure. For the hearer, the information structure of a sentence together with discourse structure instructs dynamic semantics how rhematic information should be used to update the meaning representation of the discourse (Polanyi and van den Berg, 1996).
international conference on data mining | 2011
Livia Polanyi; Martin van den Berg
In this paper we discuss the application of the Linguistic Discourse Model (LDM) to sentiment analysis at the discourse level. Based on the observations that naturally occurring discourse is interpretable though often not coherent, the LDM provides a unified and explanatory approach to discourse sentiment assignment. Special attention is paid here to the well known problem of computing sentiment in movie reviews which are characterized by shifting contexts of sentiment source and target.
meeting of the association for computational linguistics | 2004
Gian Lorenzo Thione; Martin van den Berg; Chris Culy; Livia Polanyi
In this paper, we introduce LiveTree, a core component of LIDAS, the Linguistic Discourse Analysis System for automatic discourse parsing with the Unified Linguistic Discourse Model (U-LDM) (X et al, 2004). LiveTree is an integrated workbench for supervised and unsupervised creation, storage and manipulation of the discourse structure of text documents under the U-LDM. The LiveTree environment provides tools for manual and automatic U-LDM segmentation and discourse parsing. Document management, grammar testing, manipulation of discourse structures and creation and editing of discourse relations are also supported.
Studia Logica | 2004
Livia Polanyi; Christopher Culy; Berg van den M. H; Gian Lorenzo Thione; Ahn David
Archive | 2002
Livia Polanyi; Martin van den Berg
Archive | 2003
Livia Polanyi; Martin van den Berg; Giovanni Lorenzo Thione; Richard S. Crouch; Christopher Culy; David Ahn
annual meeting of the special interest group on discourse and dialogue | 2004
Livia Polanyi; Chris Culy; Martin van den Berg; Gian Lorenzo Thione; David Ahn
Archive | 2004
Misty Azara; Livia Polanyi; Giovanni Lorenzo Thione; Martin van den Berg
Studia Logica | 2004
Livia Polanyi; Christopher Culy; Berg van den M. H; Gian Lorenzo Thione; David Ahn
