In this paper, we observe that there exists a second dimension to the relation extraction (RE) problem that is orthogonal to the relation type dimension. We show that most of these second dimensional structures are relatively constrained and not difficult to identify. We propose a novel algorithmic approach to RE that starts by first identifying these structures and then, within these, identify...

A novel technique of adding positionwise flags to one-level finite state lexicons is presented. The proposed flags are kinds of morphophonemic markers and they constitute a flexible method for describing morphophonological processes with a formalism that is tightly coupled with lexical entries and rule-like regular expressions. The formalism is inspired by the techniques used in two-level rule ...

This work is about guiding the user web search by generating most relevant questions, answers and grammars from web documents. The proposed approach is based on the representation of the main domain concepts as a set of attributes and relating these attributes to the user models and to a syntactico-semantic taxonomy, that describes the general relationships between conceptual and linguistic kno...

1 Abstract In this paper I shall propose an account of morphosyntactic phenomena like European Por-tuguese (hence: EP) cliticization in terms of interacting morphophonological and surface-syntactic constraints. In particular, I suggest that mor-phophonological constraints are partially under-speciied with respect to morpheme linearization, information that will be added monotonically by surface...

The third participation of the University of Hagen at the German Indexing and Retrieval Test (GIRT) task of the Cross Language Evaluation Campaign (CLEF 2005) aims at providing a better baseline for experiments with natural language processing (NLP) methods in domainspecific information retrieval (IR). Our monolingual experiments with the German document collection are based on a setup combinin...