Thematische Schwerpunkte des Sammelbandes bilden die Inhalte und die Ziele in der Erforschung und Analyse von Migrationsprozessen und die daraus resultierenden Situationen von Sprachkontakt und Kulturtransfer in Europa und Übersee. Neben der thematischen Einführung in die Migrationslinguistik widmet sich der Band den migrationsbedingten Formen des Sprachkontaktes und der Sprachverwendung in Nordamerika sowie verschiedenen Sprachdynamiken in Europa. Auch der sprachliche Integrationsdruck zwischen Asien und Lateinamerika wird in diesem Band thematisiert. Neben Beiträgen von bekannten Migrationslinguisten wie Georges Lüdi (Universität Basel) und Hermann Haller (City University, New York) finden sich theoretische und deskriptive Ansätze zu Sprachkontakt, Sprachwandel und Sprachverfall infolge von Migration aus der Perspektive verschiedener Einzelphilologien. Mit Beiträgen von Lena Busse, Elizabeth Couper-Kuhlen, Hermann Haller, Friederike Kern, Georges Lüdi, Isolde Pfaff, Elton Prifti, Claudia Schlaak, Margret Selting, Thomas Stehl, Lars Steinicke und Maria Wilke. / The collected volume Sprachen in mobilisierten Kulturen: Aspekte der Migrationslinguistik comprises various articles that deal with the investigation and analysis of migrational processes and situations of language contact and cultural transfer that result from these processes in Europe and overseas. The volume gives a thematic introduction to the notion of linguistic migration and discusses various forms of language contact and language use in Northern America; it also addresses various forms of language dynamics in Europe. The pressure of linguistic integration between Asia and Latin America is also touched on in the collection. In addition to contributions by well-known migrational linguists, among them Georges Lüdi (University of Basel) and Hermann Haller (City University, New York), the volume also includes theoretical and descriptive treatments of language contact, language change and language loss as the result of migration from the perspective of various single philologies. Contributions are by Lena Busse, Elizabeth Couper-Kuhlen, Hermann Haller, Friederike Kern, Georges Lüdi, Isolde Pfaff, Elton Prifti, Claudia Schlaak, Margret Selting, Thomas Stehl, Lars Steinicke and Maria Wilke.

We present an extension to a comprehensive context model that has been successfully employed in a number of practical conversational dialogue systems. <br>The model supports the task of multimodal fusion as well as that of reference resolution in a uniform manner. <br>Our extension consists of integrating implicitly mentioned concepts into the context model and we show how they serve as candidates for reference resolution.

We present an analysis of student language input in a corpus of tutoring dialogue in the domain of symbolic differentiation. Our focus on procedural tutoring makes the dialogue comparable to collaborative problem-solving (CPS). Existing CPS models describe the process of negotiating plans and goals, which also fits procedural tutoring. <br>However, we provide a classification of student utterances and corpus annotation which shows that approximately 28% of non-trivial student language in this corpus is not accounted for by existing models, and addresses other functions, such as evaluating past actions or correcting mistakes. <br>Our analysis can be used as a foundation for improving models of tutoring dialogue.

The main topic of this paper is how to configure a dialogue system to support computer-aided language learning. <br>The paper also serves to introduce our new multi-speaker dialogue system, and highlight some of its novel features.

An account is presented of the focus properties, common ground effect and dialogue behaviour of the accented German discourse marker "doch" and the accented sentence negation "nicht". <br>It is argued that "doch" and "nicht" evoke as a focus alternative the logical complement of the proposition expressed by the sentence in which they occur, and that an analysis in terms of contrastive focus accounts for their effect on the common ground and their function in dialogue.

Claiming that cross-speaker "but" can signal correction in dialogue, we start by describing the types of corrections "but" can communicate by focusing on the Speech Act (SA) communicated in the previous turn and address the ways in which "but" can correct what is communicated. <br>We address whether "but" corrects the proposition, the direct SA or the discourse relation communicated in the previous turn. We will also briefly address other relations signalled by cross-turn "but". After presenting a typology of the situations "but" can correct, we will address how these corrections can be modelled in the Information State model of dialogue, motivating this work by showing how it can be used to potentially avoid misunderstandings. We wrap up by showing how the model presented here updates beliefs in the Information State representation of the dialogue and can be used to facilitate response deliberation.

We present a new analysis of illocutionary forces in dialogue. We analyze them as complex conversational moves involving two dimensions: what Speaker commits herself to and what she calls on Addressee to perform. <br>We start from the analysis of speech acts such as confirmation requests or whimperatives, and extend the analysis to seemingly simple speech acts, such as statements and queries.<br> Then, we show how to integrate our proposal in the framework of the Grammar for Conversation (Ginzburg, to app.), which is adequate for modelling agents' information states and how they get updated.

This paper examines the interaction between different utterance types and the Japanese modal particle darou, and proposes that the decision-theoretic semantics accounts for the interaction among darou, sentence types and intonation. <br><br>

We present a formal analysis of iconic coverbal gesture. Our model describes the incomplete meaning of gesture that’s derivable from its form, and the pragmatic reasoning that yields a more specific interpretation. Our formalism builds on established models of discourse interpretation to capture key insights from the descriptive literature on gesture: synchronous speech and gesture express a single thought, but while the form of iconic gesture is an important clue to its interpretation, the content of gesture can be resolved only by linking it to its context.

Classical SDRT (Asher and Lascarides, 2003) discussed essential features of dialogue like adjacency pairs or corrections and up-dating. Recent work in SDRT (Asher, 2002, 2005) aims at the description of natural dialogue. <br>We use this work to model situated communication, i.e. dialogue, in which sub-sentential utterances and gestures (pointing and grasping) are used as conventional modes of communication.<br> We show that in addition to cognitive modelling in SDRT, capturing mental states and speech-act related goals, special postulates are needed to extract meaning out of contexts. Gestural meaning anchors Discourse Referents in contextually given domains. Both sorts of meaning are fused with the meaning of fragments to get at fully developed dialogue moves. This task accomplished, the standard SDRT machinery, tagged SDRSs, rhetorical relations, the up-date mechanism, and the Maximize Discourse Coherence constraint generate coherent structures. In sum, meanings from different verbal and non-verbal sources are assembled using extended SDRT to form coherent wholes.