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On valence-binding grammars
(1978)
The valence of a verb determines the number, and the syntactic class, of those expressions that must co-occur with it in a sentence. Definitions of "valence-term" and "valence-boundness" are provided whereby the precise conditions are formulated that a valence-binding grammar must satisfy. These conditions are exemplified in the framework of a simple categorial grammar, in which various reductions of the general notions can be carried out.
Instruktionsstile
(1982)
Ein Defizit der lexikographischen Methodologie liegt in der fehlenden Berücksichtigung der historischen, sozialen und politischen Gebundenheit von Wörterbüchern vor, obwohl die Wörterbuchkritik seit dem 19. Jh. immer wieder darauf aufmerksam gemacht hat. In der Perspektive der Benutzer besitzen Wörterbücher eine aspektenreiche kulturelle Semiotik, die mit dem hermeneutischen Charakter lexikologisch-lexikographischen Arbeitens zusammenhängt. Ausgehend vom Modell der Hermeneutik wird dafür plädiert, »Verstehenskompetenz« anstelle von »Sprachkompetenz« (des Linguisten) als Kategorie in die Theorie der Lexikographie einzuführen.
This paper describes the lexical database tool LOLA (Linguistic-Oriented Lexical database Approach) which has been developed for the construction and maintenance of lexicons for the machine translation system LMT. First, the requirements such a tool should meet are discussed, then LMT and the lexical information it requires, and some issues concerning vocabulary acquisition are presented. Afterwards the architecture and the components of the LOLA system are described and it is shown how we tried to meet the requirements worked out earlier. Although LOLA originally has been designed and implemented for the German-English LMT prototype, it aimed from the beginning at a representation of lexical data that can be reused for other LMT or MT prototypes or even other NLP applications. A special point of discussion will therefore be the adaptability of the tool and its components as well as the reusability of the lexical data stored in the database for the lexicon development for LMT or for other applications.
Bei der natürlichsprachlichen Steuerung von situierten Agenten sollen Instruktionen in Aktionen umgesetzt werden. Instruktionen spezifizieren auf der einen Seite Pläne oder Planfragmente, müssen aber auf der anderen Seite der Tatsache Rechnung tragen, daß Handlungen stets im situativen Zusammenhang auszuführen sind und deshalb nicht vollständig vorherbestimmt werden können. Die Strukturmodelle für Aktionen, die bisher vorgeschlagen worden sind, berücksichtigen diese Tatsache nur unzureichend. Im vorliegenden Beitrag wird deshalb ein geeignetes Aktionsstrukturmodell motiviert und eine Repräsentation in Form eines Aktionsschemas vorgeschlagen. Hauptmerkmal des Aktionsstrukturmodells ist, daß Handlungen als ein mehr oder weniger spezifiziertes Übergehen von einem Anfangszustand in einen Zielzustand verstanden werden.
Für koordinative Konstrukte sind verschiedene syntaktische Grundstrukturen vorgeschlagen worden. Allen diesen Ansätzen ist gemein, daß sie die inkre- mentelle Verarbeitung dieser Konstruktionen nicht plausibel erklären können, obwohl Indizien dafür vorliegen, daß es sich bei Koordination keineswegs um ein genuin strukturelles Phänomen handelt, sondern um eines, daß aus den Prinzipien der inkrementellen Verarbeitung emergiert. Das skizzierte Verarbeitungsmodell basiert deshalb auf der Annahme, daß syntaktische Strukturen im Falle der Koordination mehrfach benutzt werden und hinsichtlich verschiedener sog. Projektionen zu verarbeiten sind. Diese Annahme erlaubt es, die Vielfalt der bei der Koordination auftretenden Tilgungs- und Reduktionsphänomene auf die Realisation koordinativer Strukturen bezüglich ihrer verschiedenen Projektionen zurückzuführen.
In this paper we present a new approach to lexicographical design for the description of German speech act verbs. This approach is based on an action-theoretical semantic conception. The several conditions for linguistic action provide the basis for the elaboration of the central semantic features. The systematic relationship of these features is reflected in the organization of a lexical database which allows various possibilities of access to different types of lexical information.
In the following paper we shall give an outline of the semantic framework for describing speech act verbs, i. e. verbs of communication, with the practical goal of a semantical database for a (dictionary of) synonymy of German speech act verbs which enables the user not only to find a list of synonymous verbs but also enables him to gain an insight into the semantic relations between the words.
The semantic framework is based on
(i) a set of conditions for performing speech acts as the relevant domain of reference
(ii) the introduction of a notion of situation, or better type of situation
The performative as well as the descriptive use of the verbs can be reduced to their fundamental dependency on the situations in which they are used: on the one hand with regard to the possibility of the action itself, and on the other hand with regard to the possibility of their designation. For both ways of use the relevant aspects of the situation constitute the necessary conditions.
Sowohl bei der Entwicklung konventioneller Software als auch bei der Entwicklung wissensbasierter Systeme fehlen z.Z. systematische Ansätze, Anforderungen an das zu entwickelnde Produkt „ingenieurmäßig“ zu erheben. Die Probleme, mit denen sich der Software Engineer konfrontiert sieht, ähneln denen der Wissensakquisition im Knowledge Engineering. Der an der Universität Karlsruhe am Institut AIFB entwickelte Ansatz MIKE ([AFL93]) beschreibt eine systematische Vorgehensweise zur Entwicklung wissensbasierter Systeme. Die Beschreibung der spezifischen Anforderungen an wissensbasierte Systeme ist Gegenstand der aktuellen Forschung; mit MIKE steht aber bereits das Gerüst zur Verfügung, mit denen die Anforderungen im Laufe der weiteren Entwicklungsphasen verwaltet werden können.
As can be shown for English data, the assimilation of the alveolar stop can result from an increased gestural overlap of the following oral closure gesture. Our experiment with German synthetic speech showed similar results. Further, it suggests that it is neccessary to complete the gestural specification of the glottal state. A voiced stop should be represented not only by an oral gesture, but by a glottal one as well.
Normen, die keiner nennt
(1996)
The vowel quality in some diphthongs of Swabian (an upper german dialect) was determined by measurement of first and second formant values. A minimal contrast could be shown between two different diphthong qualities […], where for Standard German only one is assumed, viz. /ai/. The two diphthong qualities differ only slightly in onset and offset vowel quality, so a better understanding of their relationship was expected from an examination of their dynamic aspects. Our preliminary results suggest that there is indeed a difference in the temporal structure of the two diphthongs.
Lexical-semantic theories often suffer from the imprecision of the concepts they employ in their representations. This leads to a considerable decrease in empirical strength by inviting circular argumentation. A demonstration of how to go about overcoming such shortcomings will be carried out, using the lexical semantic concept of "punctuality" as an example. Firstly, I will argue that the distinction between punctuality and durativity plays a crucial role for the explanation of a wide range of syntactic and semantic phenomena. Secondly, I will discuss methodological issues involved in arriving at a more precise definition of punctuality and, finally, the notion of "punctuality" will be given an interpretation on the basis of extensive consultation of research on cognitive time concepts.
Whether verbs have to be marked as punctual vs. durative has been a controversial issue from the very beginnings of research on aktionsarten in the last century right on up to modern theories of aspectual classes and aspect composition. Debates about the linguistic necessity of this distinction have often been accompanied by the question of what it means for a verb to be temporally punctual. In this paper I will, firstly, sketch the history of research on the punctual-durative distinction and present several linguistic arguments in its favor. Secondly, I will show how this distinction is captured in an eventstructure- based approach to lexical semantics. Thirdly, I will discuss the extent to which a precise definition of the notions used in lexical
representations helps avoid circular argumentation in lexical semantics. Finally, I will demonstrate how this can be done for the notion of ‘punctuality’ by clarifying the logical type of this predicate and relating it to central cognitive time concepts.
In this study we investigate the intonational characteristics of the four utterance types statement, wh-question, yes/no-question and declarative question. Readings of two German scripted dialogues were examined to ascertain characteristic features of the F0 contour for each utterance type. Final boundary tone, nuclear pitch accent, F0 offset, F0 onset, F0 range, and the slopes of a topline and a bottomline were determined for each utterance and compared for the four utterance types. Results show that for an average speaker, the final boundary tone, the F0 range, and the slope of the topline can be used to distinguish between the four utterance types. However, speakers may deviate from this pattern and exploit other intonational means to distinguish certain utterance types or choose not to mark a syntactic difference at all.
This work exploited coarticulation and loud speech as natural sources of perturbation in order to determine whether articulatory covariation (motor equivalent behavior) can be observed inspeech that is not artificially perturbed. Articulatory analyses of jaw and tongue movement in the production of alveolar consonants by German speakers were performed. The sibilant /s/ shows virtually no articulatory covariation under the influence of natural perturbations, whereas other alveolar consonants show more obvious compensatory behavior. Our conclusion is that an effect of natural sources of perturbation is noticable, but sounds are affected to different degrees.
Das Konzept von Dominanz bezieht sich auf soziale Beziehungen, die entweder auf bereits etablierten Machtverhältnissen basieren oder solche herzustellen versuchen. Dominanz im Gespräch kann sich in bestimmten Interaktionseigenschaften manifestieren, z.B. in der ständigen Beanspruchung von Rederecht, der konsistenten thematischen und perspektivischen Steuerung, der Kontrolle von Partneraktivitäten oder dem Verhindern von Initiativen anderer u.ä..
Im Folgenden werde ich mich auf eine der Möglichkeiten konzentrieren, auf das Herstellen von Dominanz durch das Dominantsetzen von Perspektiven. Durch das konsistente Dominantsetzen der eigenen Perspektive auf einen thematischen Gegenstand oder Aspekte davon ist es möglich, zumindest in Bezug auf diesen Gegenstand Dominanz über die anderen Gesprächspartner zu etablieren.
From Open Source to Open Information. Collaborative Methods in Creating XML-based Markup Languages
(2000)
The "imperfective-paradox" paradox and other problems with the semantics of the progressive aspect
(2000)
This paper is about the meaning of the progressive aspect, of which it has been notoriously difficult to give a satisfying account. 1 A number of intriguing properties of its meaning were first brought out in formal semantic treatments. An event semantics approach to the progressive that integrates concepts of nonnality and perspective as well as adequate lexical representations seems to be particularly promising. In section 1 I will present several problems connected with the semantics of the progressive that are crucial for shaping its truth conditions. Several solutions to these problems that have been suggested in the literature will be discussed. 2 In section 2 I will sketch a preliminary account of the meaning of the progressive aspect. In section 2.1 the basic components that underlie the truth conditions of the progressive will be described. In section 2.2 I will present underlying lexical assumptions and the truth conditions for the progressive. Finally, in section 2.3, I will evaluate the proposal by revisiting the problems discussed.
We describe a general two-stage procedure for re-using a custom corpus for spoken language system development involving a transformation from character-based markup to XML, and DSSSL stylesheet-driven XML markup enhancement with multiple lexical tag trees. The procedure was used to generate a fully tagged corpus; alternatively with greater economy of computing resources, it can be employed as a parametrised ‘tagging on demand’ filter. The implementation will shortly be released as a public resource together with the corpus (German spoken dialogue, about 500k word form tokens) and lexicon (about 75k word form types).
Instrumente für die Arbeit mit Korpora gesprochener Sprache. Text-Ton-Alignment und COSMAS II
(2000)
MRI data of German vowels and consonants was acquired for 9 speakers. In this paper tongue contours for the vowels were analyzed using the three-mode factor analysis technique PARAFAC. After some difficulties, probably related to what constitutes an adequate speaker sample for this three-mode technique to work, a stable two-factor solution was extracted that explained about 90% of the variance. Factor 1 roughly captured the dimension low back to high front; Factor 2 that from mid front to high back. These factors are compared with earlier models based on PARAFAC. These analyses were based on midsagittal contours; the paper concludes by illustrating from coronal and axial sections how non-midline information could be incorporated into this approach.