Modern programming languages use regular expressions to define valid tokens. Traditional lexical analyzers based on minimum deterministic finite automata for regular expressions cannot handle the look-ahead problem. The scanner writer needs to explicitly identify the look-ahead states and code the buffering and re-scanning operations by hand. We identify the class of finite look-ahead finite au...

This paper investigates the status of the lexicon and the possibilities for expressing lexical generalizations in the paradigm of Head-Driven Phrase Structure Grammar (HPSG). We illustrate that the architecture readily supports the use of implicational principles to express generalizations over a class of word objects. A second kind of lexical generalizations expressing relations between classe...

The work we present here addresses cue-based noun classification in English and Spanish. Its main objective is to automatically acquire lexical semantic information by classifying nouns into previously known noun lexical classes. This is achieved by using particular aspects of linguistic contexts as cues that identify a specific lexical class. Here we concentrate on the task of identifying such...

0 Introduction The canonical word order of English is generally taken to be SVO, where S and O are assumed to be lexical, i.e., non-pronominal (cf. Lambrecht 1987), as in (1) below. 2 (1) The news coverage showed all the, you know, the guys who didn't get hurt coming home. In the example in 1 we see that the lexical NP the news coverage is the subject of the sentence. While this sentence looks ...

Traditional vector-based models use word co-occurrence counts from large corpora to represent lexical meaning. In this paper we present a novel approach for constructing semantic spaces that takes syntactic relations into account. We introduce a formalisation for this class of models and evaluate their adequacy on two modelling tasks: semantic priming and automatic discrimination of lexical rel...

In this paper, we report on our attempt at assigning semantic information from the English FrameNet to lexical units in the Bulgarian valency lexicon. The paper briefly presents the model underlying the Bulgarian FrameNet (BulFrameNet): each lexical entry consists of a lexical unit; a semantic frame from the English FrameNet, expressing abstract semantic structure; a grammatical class, defining...

One of the key aspects of HPSG theories on Germanic and Romance languages is the lexical speciication of verbs selecting a verbal complement. Hinrichs and Nakazawa (1989) showed how the idea of functional composition from categorial grammar can be expressed as part of the speciication of a lexical entry, and versions of this argument raising speciication have since been used in most work on Ger...

Whether closed-class words use the same lexical access route(s) as open-class words has been intensely debated recently. Differences in frequency sensitivity have been suggested as one manifestation of separable access routes. However, all the lexical decision studies have been limited by floor effects at the higher frequency ranges which could mask theoretically important differences in the be...

Constructional and projectionist approaches are often contrasted, yet both incorporate the same important assumption about the nature of the meaning of sentences with verbs and their arguments, although they differ in how much meaning is allocated to the syntax and how much to the lexicon. FOCUS OF THE TALK: a facet of meaning that both approaches see as lexical, a notion of core meaning or roo...