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TT-MCTAG lets one abstract away from the relative order of co-complements in the final derived tree, which is more appropriate than classic TAG when dealing with flexible word order in German. In this paper, we present the analyses for sentential complements, i.e., wh-extraction, thatcomplementation and bridging, and we work out the crucial differences between these and respective accounts in XTAG (for English) and V-TAG (for German).
In this paper we propose a compositional semantics for lexicalized tree-adjoining grammar (LTAG). Tree-local multicomponent derivations allow separation of the semantic contribution of a lexical item into one component contributing to the predicate argument structure and a second component contributing to scope semantics. Based on this idea a syntax-semantics interface is presented where the compositional semantics depends only on the derivation structure. It is shown that the derivation structure (and indirectly the locality of derivations) allows an appropriate amount of underspecification. This is illustrated by investigating underspecified representations for quantifier scope ambiguities and related phenomena such as adjunct scope and island constraints.
In this paper, we introduce an extension of the XMG system (eXtensibleMeta-Grammar) in order to allow for the description of Multi-Component Tree Adjoining Grammars. In particular, we introduce the XMG formalism and its implementation, and show how the latter makes it possible to extend the system relatively easily to different target formalisms, thus opening the way towards multi-formalism.
Developing linguistic resources, in particular grammars, is known to be a complex task in itself, because of (amongst others) redundancy and consistency issues. Furthermore some languages can reveal themselves hard to describe because of specific characteristics, e.g. the free word order in German. In this context, we present (i) a framework allowing to describe tree-based grammars, and (ii) an actual fragment of a core multicomponent tree-adjoining grammar with tree tuples (TT-MCTAG) for German developed using this framework. This framework combines a metagrammar compiler and a parser based on range concatenation grammar (RCG) to respectively check the consistency and the correction of the grammar. The German grammar being developed within this framework already deals with a wide range of scrambling and extraction phenomena.
Der TUSNELDA-Standard : ein Korpusannotierungsstandard zur Unterstützung linguistischer Forschung
(2001)
Die Verwendung von Standards für die Annotierung größerer Sammlungen elektronischer Texte (Korpora) ist eine Voraussetzung für eine mögliche Wiederverwendung dieser Korpora. Dieser Artikel stellt einen Korpusannotierungsstandard vor, der die Anforderungen der Untersuchung unterschiedlichster linguistischer Phänomene berücksichtigt. Der Standard wurde im SFB 441 an der Universität Tübingen entwickelt. Er geht von bestehenden Standards, insbesondere CES und TEI, aus, die sich als teilweise zu ausführlich und zu wenig restriktiv,teilweise auch als nicht ausdrucksstark genug erweisen, um den Bedürfnissen korpusbasierter linguistischer Forschung gerecht zu werden.
Cet article étudie la relation entre les grammaires darbres adjoints à composantes multiples avec tuples darbres (TT-MCTAG), un formalisme utilisé en linguistique informatique, et les grammaires à concaténation dintervalles (RCG). Les RCGs sont connues pour décrire exactement la classe PTIME, il a en outre été démontré que les RCGs « simples » sont même équivalentes aux systèmes de réécriture hors-contextes linéaires (LCFRS), en dautres termes, elles sont légèrement sensibles au contexte. TT-MCTAG a été proposé pour modéliser les langages à ordre des mots libre. En général ces langages sont NP-complets. Dans cet article, nous définissons une contrainte additionnelle sur les dérivations autorisées par le formalisme TT-MCTAG. Nous montrons ensuite comment cette forme restreinte de TT-MCTAG peut être convertie en une RCG simple équivalente. Le résultat est intéressant pour des raisons théoriques (puisqu’il montre que la forme restreinte de TT-MCTAG est légèrement sensible au contexte), mais également pour des raisons pratiques (la transformation proposée ici a été utilisée pour implanter un analyseur pour TT-MCTAG).
This paper compares two approaches to computational semantics, namely semantic unification in Lexicalized Tree Adjoining Grammars (LTAG) and Lexical Resource Semantics (LRS) in HPSG. There are striking similarities between the frameworks that make them comparable in many respects. We will exemplify the differences and similarities by looking at several phenomena. We will show, first of all, that many intuitions about the mechanisms of semantic computations can be implemented in similar ways in both frameworks. Secondly, we will identify some aspects in which the frameworks intrinsically differ due to more general differences between the approaches to formal grammar adopted by LTAG and HPSG.
The work presented here addresses the question of how to determine whether a grammar formalism is powerful enough to describe natural languages. The expressive power of a formalism can be characterized in terms of i) the string languages it generates (weak generative capacity (WGC)) or ii) the tree languages it generates (strong generative capacity (SGC)). The notion of WGC is not enough to determine whether a formalism is adequate for natural languages. We argue that even SGC is problematic since the sets of trees a grammar formalism for natural languages should be able to generate is difficult to determine. The concrete syntactic structures assumed for natural languages depend very much on theoretical stipulations and empirical evidence for syntactic structures is rather hard to obtain. Therefore, for lexicalized formalisms, we propose to consider the ability to generate certain strings together with specific predicate argument dependencies as a criterion for adequacy for natural languages.
In this paper we present a parsing architecture that allows processing of different mildly context-sensitive formalisms, in particular Tree-Adjoining Grammar (TAG), Multi-Component Tree-Adjoining Grammar with Tree Tuples (TT-MCTAG) and simple Range Concatenation Grammar (RCG). Furthermore, for tree-based grammars, the parser computes not only syntactic analyses but also the corresponding semantic representations.
Multicomponent Tree Adjoining Grammars (MCTAG) is a formalism that has been shown to be useful for many natural language applications. The definition of MCTAG however is problematic since it refers to the process of the derivation itself: a simultaneity constraint must be respected concerning the way the members of the elementary tree sets are added. Looking only at the result of a derivation (i.e., the derived tree and the derivation tree), this simultaneity is no longer visible and therefore cannot be checked. I.e., this way of characterizing MCTAG does not allow to abstract away from the concrete order of derivation. Therefore, in this paper, we propose an alternative definition of MCTAG that characterizes the trees in the tree language of an MCTAG via the properties of the derivation trees the MCTAG licences.
Multicomponent Tree Adjoining Grammars (MCTAG) is a formalism that has been shown to be useful for many natural language applications. The definition of MCTAG however is problematic since it refers to the process of the derivation itself: a simultaneity constraint must be respected concerning the way the members of the elementary tree sets are added. This way of characterizing MCTAG does not allow to abstract away from the concrete order of derivation. In this paper, we propose an alternative definition of MCTAG that characterizes the trees in the tree language of an MCTAG via the properties of the derivation trees (in the underlying TAG) the MCTAG licences. This definition gives a better understanding of the formalism, it allows a more systematic comparison of different types of MCTAG, and, furthermore, it can be exploited for parsing.
Die Theorie des sprachlichen Lernens und Lehrens ist bis in die siebziger Jahre des 20. Jahrhunderts hinein eine "Meisterlehre" (Müller-Michaels 1980) gewesen. Große Vorbilder eines Volkes (z.B. Mose), Leiter philosophischer Schulen (z.B. Platon) oder Äbte von Klöstern (z.B. Augustinus) und schließlich staatlich geprüfte Oberstudiendirektoren (z.B. Ulshöfer) beschrieben den jüngeren Kollegen, was sich beim Lehren der Sprache über Jahrzehnte bewährt habe: wie man am besten den Sprachunterricht erteile (Müller 1922, Seidemann 1973, Ulshöfer 1968, Essen 1968). Mit der Etablierung der Sprachdidaktiken an den Universitäten ist das Konzept der "norm-setzenden Handlungswissenschaften" Müller-Michaels 1980, Ivo 1975) entwickelt worden. Der Forscher (nicht mehr als Meister der Praxis ausgewiesen) untersucht die Prozesse des sprachlichen Lehrens und Lernens, indem er im "Feld" des Praktikers Erhebungen anstellt, um anschließend die erhobenen Daten einer Hypothesenprüfung zu unterziehen. Als Handlungsfeld wird besonders die Schule berücksichtigt. Die Methoden der Forschung sind vorwiegend "quasi-experimentell". In der Nachfolge der Sprachtheorie Chomsky´s (Chomsky 1965) sind die experimentellen Ansätze zur Untersuchung des Spracherwerbs, der Spracherwerbsstörung und der betreffenden Interventionen entwickelt worden (de Villiers/ de Villiers 1970, Hörmann 1978). Ort der Untersuchung ist das Labor. Das Design dieser Sprachdidaktik (bzw. Psycholinguistik, Kognitionswissenschaften etc.) ist experimentell (z.B. Herrmann 2004). Alle drei Konzepte stehen sich in vielerlei Hinsicht antagonistisch gegenüber. Sie auseinander zu halten - und andererseits mit Gewinn aufeinander zu beziehen -, gehört zu den Basis-Fähigkeiten der linguosomatischen Berufe und ihrer zugrundeliegenden Theorie (Beispiel Sprachlehrberufe, Phoniatrie, Sprachheil-Sonderpädagogik, psychosomatische Sprachtherapien). Daher sind die signifikanten Gegensätze der drei Konzepte herauszuarbeiten und ihre widerstrebenden Konsequenzen aufeinander zu beziehen.
The present work reports two experiments on brain electric correlates of cognitive and emotional functions. (1) Studying paranormal belief, 35-channel resting EEG (10 believers and 13 skeptics) was analyzed with "Low Resolution Electromagnetic Tomography" (LORETA) in seven frequency bands. LORETA gravity centers of all bands shifted to the left in believers vs. sceptics, and showed that believers had stronger left fronto-temporo-parietal activity than skeptics. Self-rating of affective attitude showed believers to be less negative than skeptics. The observed EEG lateralization agreed with the ‘valence hypothesis’ that posits predominant left hemispheric processing for positive emotions. (2) Studying emotions, positive and negative emotion words were presented to 21 subjects while "Event-Related Potentials" (ERPs) were recorded. During word presentation (450 ms), 13 microstates (steps of information processing) were identified. Three microstates showed different potential maps for positive vs. negative words; LORETA functional imaging showed stronger activity in microstate #4 (106-122 ms) for positive words right anterior, for negative words left central; in #6 (138-166 ms) for positive words left anterior, for negative words left posterior; in #7 (166-198 ms), for positive words right anterior, for negative words right central. In conclusion: during word processing, the extraction of emotion content starts as early as 106 ms after stimulus onset; the brain identifies emotion content repeatedly in three separate, brief microstate epochs; and, this processing of emotion content in the three microstates involves different brain mechanisms to represent the distinction positive vs. negative valence.
This paper examines the development of periphrastic constructions involving auxiliary "have" and "be" with a past participle in the history of English, on the basis of parsed electronic corpora. It is argued that the two constructions represented distinct syntactic and semantic structures: while the one with have developed into a true perfect in the course of Middle English, the one with be remained a stative resultative throughout its history. In this way, it is explained why the be construction was rarely or never used in a number of contexts, including past counterfactuals, iteratives, duratives, certain kinds of infinitives and various other utterance types that cannot be characterized as perfects of result. When the construction with have became a true perfect, it was used in such contexts, regardless of the identity of the main verb, leading to the appearance of have with verbs like come which had previously only taken be. Crucially, however, have was not spreading at the expense of be, as the be perfect had never been used in such contexts, but rather at the expense of the old simple past. At least until the end of the Early Modern English period, the shift in the relative frequency of have and be perfects is to be explained in terms of the expansion of the former into new contexts, while the latter remained stable. A formal analysis is proposed, taking as its starting point a comparison with German which shows that the older English be perfect indeed behaves more like the German stative passive than its haben and sein perfects.
In this paper, we will argue for a novel analysis of the auxiliary alternation in Early English, its development and subsequent loss which has broader consequences for the way that auxiliary selection is looked at cross-linguistically. We will present evidence that the choice of auxiliaries accompanying past participles in Early English differed in several significant respects from that in the familiar modern European languages. Specifically, while the construction with have became a full-fledged perfect by some time in the ME period, that with be was actually a stative resultative, which it remained until it was lost. We will show that this accounts for some otherwise surprising restrictions on the distribution of BE in Early English and allows a better understanding of the spread of HAVE through late ME and EModE. Perhaps more importantly, the Early English facts also provide insight into the genesis of the kind of auxiliary selection found in German, Dutch and Italian. Our analysis of them furthermore suggests a promising strategy for explaining cross-linguistic variation in auxiliary selection in terms of variation in the syntactico-semantic structure of the perfect. In this introductory section, we will first provide some background on the historical situation we will be discussing, then we will lay out the main claims for which we will be arguing in the paper.
In this paper I seek to account for the productive word-formation process resulting in the current proliferation of un-nouns, the semi-legitimate offspring of Humpty Dumpty´s un-birthday present (1871) and 7-Up´s commercial incarnation as The Un-Cola (1968), a construction that can be linked to the more well-established categories of un-adjectives and un-verbs, whose formation constraints we will also examine. Drawing on a large corpus of novel un-nouns I have assembled in collaboration with Beth Levin presented in the Appendices to this paper, I will invoke Rosch´s prototype semantics and Aristotle´s notion of PRIVATIVE opposites, defined in terms of a marked exception to a general class property, to generalize across the different categories of un-words. It will be argued that a given un-noun refers either to an element just outside a given category with whose members it shares a salient function (e.g. un-cola) or to a peripheral member of a given category (an unhotel is a hotel but not a good exemplar of the class-not a HOTEL hotel).
The retreat of BE as perfect auxiliary in the history of English is examined. Corpus data are presented showing that the initial advance of HAVE was most closely connected to a restriction against BE in past counterfactuals. Other factors which have been reported to favor the spread of HAVE are either dependent on the counterfactual effect, or significantly weaker in comparison. It is argued that the effect can be traced to the semantics of the BE perfect, which denoted resultativity rather than anteriority proper. Related data from other older Germanic and Romance languages are presented, and finally implications for existing theories of auxiliary selection stemming from the findings presented are discussed.
In the course of the ME period, HAVE began to encroach on territory previously held by BE. According to Rydén and Brorström (1987); Kytö (1997), this occurred especially in iterative and durational contexts, in the perfect infinitive and modal constructions. In Early Modern English (henceforth EModE), BE was increasingly restricted to the most common intransitives come and go, before disappearing entirely in the 18th and 19th centuries. This development raises a number of questions, both historical and theoretical. First, why did HAVE start spreading at the expense of BE in the first place? Second, why was the change conditioned by the factors mentioned by Rydén and Brorström (1987) and Kytö (1997)? Third, why did the change take on the order of 800 years to go to completion? Fourth, what implications does the change have for general theories of auxiliary selection? In this paper we’ll try to answer the first question by focusing on one the earliest clearly identifiable advance of HAVE onto BE territory – its first appearance with the verb come, which for a number of reasons is an ideal verb to focus on. First, come is by far the most common intransitive verb, so we get large enough numbers for statistical analysis. Second, clauses containing the past participle of come with a form of BE are unambiguous perfects: they cannot be passives, and they did not continue into modern English with a stative reading like he is gone. Third, and perhaps most importantly, come selected BE categorically in the early stages of English, so the first examples we find with HAVE are clear evidence for innovation. We will present evidence from a corpus study showing that the first spread of HAVE was due to a ban on auxiliary BE in certain types of counterfactual perfects, and will propose an account for that ban in terms of Iatridou’s (2000) Exclusion theory of counterfactuals.