We describe CzEngVallex, a bilingual Czech–English valency lexicon which aligns verbal valency frames and their arguments. It is based on a parallel Czech-English corpus, the Prague Czech-English Dependency Treebank (PCEDT), where for each occurrence of a verb, a reference to the underlying Czech and English valency lexicons (PDT-Vallex and CzEngVallex, respectively) is recorded. The CzEngValle...

In this paper we present the database of verb valency frames for Czech language named VerbaLex being created presently in NLP Laboratory at Faculty of Informatics Masaryk University. This work involves building the valency database of Czech verbs with their surface and deep valency frames. Moreover we adopt the list of verb semantic classes fromEnglish to Czech. Wewant to show the way of more p...

In Natural Language Processing (NLP), the quality of a system depends to a great extent on the quality of the linguistic resources it uses. Due to the unpredictable character of valency properties, a reliable source for information about valency is important for syntactic and semantic analysis. With this in mind, we discuss how the Valency Dictionary of English in machine-readable form can be u...

A subgroup G of automorphisms of a graph X is said to be 1 2-transitive if it is vertex and edge but not arc-transitive. The graph X is said to be 1 2-transitive if Aut X is 1 2-transitive. The graph X is called one-regular if Aut X acts regularly on the set arcs of X. The interplay of three diierent concepts of maps, one-regular graphs and 1 2-transitive group actions on graphs of valency 4 is...

In this article we focus on valency, which belongs to the core phenomena being captured in the underlying level of the Prague Dependency Treebank (PDT). We present a summary of the basic principles of the applied theoretical framework including proposals for suitable refinement relevant to NLP. The current status of description of valency behavior of verbs, nouns and adjectives is outlined. We ...

This paper deals with valency frames for selected group of Czech verbs belonging to the domain of law. Starting with the lexical database VerbaLex we propose semantic roles for these verbs and formulate their Complex Valency Frames. The lexical database VerbaLex has been developed recently at the NLP Centre FI MU and contains approximately 10 500 Czech verbs. We integrate the proposed ’law’ val...

Abstract This paper introduces the topic and contributions of this special issue. While lexical restrictions are well-studied for grammatical relations defining argument coding (case marking indexation), they also common with voice valency constructions, be morphologically coded or not. The defines relevant terms sketches development current usage-based approaches to restrictions, in reaction e...

The valency of predicates is a key component of a lexical entry because most, if not all, recent syntactic theories`project' syntactic structure from such information in the lexicon (e.g. Pollard & Sag, 1987). Therefore, a wide-coverage robust parser utilising a grammar based on one of these theories must have access to an accurate dictionary encoding (at a minimum) valency information and prob...