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TGC
2010
Springer
13 years 7 months ago
An Algebra of Hierarchical Graphs
We define an algebraic theory of hierarchical graphs, whose axioms characterise graph isomorphism: two terms are equated exactly when they represent the same graph. Our algebra can...
Roberto Bruni, Fabio Gadducci, Alberto Lluch-Lafue...
COLING
2010
13 years 4 months ago
A Hierarchical Classifier Applied to Multi-way Sentiment Detection
This paper considers the problem of document-level multi-way sentiment detection, proposing a hierarchical classifier algorithm that accounts for the inter-class similarity of tag...
Adrian Bickerstaffe, Ingrid Zukerman
NAACL
2010
13 years 7 months ago
Accurate Non-Hierarchical Phrase-Based Translation
A principal weakness of conventional (i.e., non-hierarchical) phrase-based statistical machine translation is that it can only exploit continuous phrases. In this paper, we extend...
Michel Galley, Christopher D. Manning
ACL
2012
12 years 1 days ago
Pattern Learning for Relation Extraction with a Hierarchical Topic Model
We describe the use of a hierarchical topic model for automatically identifying syntactic and lexical patterns that explicitly state ontological relations. We leverage distant sup...
Enrique Alfonseca, Katja Filippova, Jean-Yves Delo...
ECRTS
2009
IEEE
13 years 7 months ago
Hierarchical Utilization Control for Real-Time and Resilient Power Grid
Blackouts in our daily life can be disastrous with enormous economic loss. Blackouts usually occur when appropriate corrective actions are not effectively taken for an initial con...
Ming Chen, Clinton Nolan, Xiaorui Wang, Sarina Adh...