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Acquisition of Czech by French learners: automatic analysis of errors in declension
Šmilauer, Ivan ; Hajičová, Eva (advisor) ; Hrdlička, Milan (referee) ; Cardey-Greenfield, Sylviane (referee)
Our work presents the realization of a platform of computer-assisted language learning CETLEF, featuring on-line fill-in-the-blank exercises with automatic feedback on errors. CETLEF, consisting of a relational data base and author and learner interfaces, rendered necessary the definition of a model for declension in Czech. This model contains a detailed classification of the paradigms and rules for the realization of vocalic and consonantal alternations. It enables the morphological annotation of required forms, the didactic presentation of the morphological system of Czech on the learning platform, as well as the automatic error diagnosis. Diagnosis is carried out by the comparison of an erroneous production with hypothetical forms generated from the stem of the required form. An appraisal of the diagnosis of the productions collected on CETLEF shows that the vast majority of errors can be interpreted with the aid of this technique.
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Word order in late Old Czech (1500-1620): status of a synthetic predicate in the main sentence
Zikánová, Šárka ; Kučera, Karel (advisor) ; Hajičová, Eva (referee) ; Šlosar, Dušan (referee)
The word order of Slavie languages is an important point of interest of both Czech and foreign linguists. The Czech word order has been described e.g. by L. Uhlířová, by the so called Prague School of Functional Sentence Perspective (P. Sgall, E. Hajičová, E. Buráňová), by J. Firbas and A. Svoboda. Recently, new works referring to the theme are published abroad. (Franks - King 2000, Zybatow et al. 2001 ). The word order- or, more exactly, the ordering of the verb, the subject and the object in a sentence constitutes a basis for the word order typology of languages. The typology distinguishes SVO-languages (subject - verb - object), SOV -languages and others (Encyklopedický slovník češtiny, 2002: 503). According to the typology, present Czech is an SVO-language: the verb usually follows the subject and the object is placed after the verb (cf. the term systemic ordering in the Czech linguistic tradition, Sgall - Hajičová- Buráňová, 1980: 77). As the handbooks of the history of the Czech language show, there was a phase in the development of Czech during which a predicate verb was often placed at the end of a sentence. 1 This characteristics is mentioned in the linguistic literature usually in connection with the Czech in the period of humanism (cf. Havránek, 1979). (This period begins in the 14th_15th century...
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Tools and Data for Analysis of Spoken Czech and its Prosody
Peterek, Nino ; Hajičová, Eva (advisor) ; Kopeček, Ivan (referee) ; Psutka, Josef (referee)
This work describes our steps towards prosody models of spoken Czech language. After a characterisation and discussion of recent prosody definitions and of area of prosody applications, we present the central point of the work, development of an easy-accessible and user-friendly research environment Dialogy.Org, supporting exploration of Czech prosody and its automatic analysis and modelling. Powered by TCPDF (www.tcpdf.org)
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Rules for analyzing anaphora in Czech
Nguy, Giang Linh ; Hajičová, Eva (referee) ; Hajič, Jan (advisor)
With the increasing importance of natural language processing there is growing number of research with the theme automatic anaphora resolution.. The contribution to the research on this problem is also this thesis. The aim of the work is to propose a set of rules for anaphora resolution in Czech. The created set of rules consists of handwritten rules as well as rules developped with the aid of machine learning system C4.5. For the rules training and testing were used anoted data from the Prague Dependency Treebank, in which following types of anaphora are captured: pronominal anaphora, control, reciprocity and dependency relation of adjuncts. Our work is focused on these types of anaphora. The evaluation of the rules is done with standard methods for interpretation of recall and precision.
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