Walter Kasper

User reviews and comments on hotels on the web are an important information source in travel planning. Therefore, knowing about these comments is important for quality control to the hotel management, too. We present a system that collects such comments from the web and creates classified and struc-tured overviews of such comments and facilitates a...

User reviews and comments on hotels on the Web are an important information source in travel planning. Knowledge of such comments therefore can be important to the hotel management for quality control. But often it is difficult to find and to follow such information on the Web. We present a system that automatically monitors user comments on the We...

This paper reviews the OpenLogos rule-based machine translation system, and describes its model architecture as an incremental pipeline process. The paper also describes OpenLogos resources and their customization to specific application domains. One of the key aspects of rule-based machine translation systems intelligence is the symbology employed...

User reviews and comments on hotels on the web are an important information source in travel planning. Therefore, knowing about these comments is important for quality control to the hotel management, too. We present a system that collects such comments from the web and creates classified and struc-tured overviews of such comments and facilitates a...

We present a system for browsing a news repository that is based on semantic similarity of documents. News documents get automatically annotated semantically using information extraction. Annotations are displayed to a user who can easily retrieve crosslingual semantically related documents by selecting interesting content items.

We present a system for browsing news that is based on semantic similarity of documents. News documents get automatically annotated semantically using information extraction. Annotations are displayed to a user who can easily retrieve crosslingual semantically related documents by selecting interesting items.

In this paper, a complete architecture for knowledge-assisted cross-media analysis of News-related multimedia content is presented, along with its constituent components. The proposed analysis architecture employs state-of-the-art methods for the analysis of each individual modality (visual, audio, text) separately, and proposes a fusion technique...

We outline an experimental machine translation system currently under development at the Institute for Computational Linguistics which aims at flexibility with respect to the level of transfer. The core of the system is a bidirectional transfer system using LFG-grammars for source and target languages. If translation is not possible on the basis of...

Unification-based theories of grammar allow to integrate different levels of linguistic descriptions in the coinmen framework of typed feature structures. Dependencies among the levels are expressed by corefcrences. Though highly attractive theoretically, using such codcscriptions for analysis creates problems of efficiency. We present an approach...

Unification-based theories of grammar allow to integrate different levels of linguistic descriptions in the common framework of typed feature structures. Dependencies among the levels are expressed by coreferences.

This paper revisits word lattice search whose task is to find a plausible semantic interpretation for a given utterance. Our approach of interleaved search and analysis is designed to break the frontier of "toy" applications.

The natural language system DISCO is described. It combines• a powerful and flexible grammar development system;• linguistic competence for German including morphology, syntax and semantics;• new methods for linguistic performance modeling on the basis of high-level competence grammars;• new methods for modelling multi-agent dialogue competence;• a...

Deep linguistic analysis is based on Head-Driven Phrase Structure Grammar (HPSG) which provides an integrated approach to syntactic and semantic analysis. We present the basic concepts and ideas of HPSG, as well as of the underlying semantic representation formalism and its interface to the Verbmobil system.

We describe a novel method for coping with un- grammatical input based on the use of chart-like data structures, which permit anytime process- ing. Priority is given to deep syntactic anal- ysis. Should this fail, the best partial analy- ses are selected, according to a shortest-paths algorithm, and assembled in a robust process- ing phase. The met...

This paper revisits word lattice parsing whose task is to nd a plausible semantic interpretation for a given utterance. Our approach of interleaved search and analysis is designed to break the frontier of oy" applications. The framework is implemented in two interacting modules, running in parallel. Instead of simply parsing a word lattice, we rath...

This paper revisits word lattice search whose task is to find a plausible semantic interpretation for a given utterance. Our approach of interleaved search and analysis is designed to break the frontier of "toy" applications. The framework is implemented in two interacting modules, running in parallel. Instead of simply parsing a word lattice, we r...

Unification-based theories of grammar allow for an integration of different levels of linguistic descriptions in the common framework of typed feature structures. Dependencies among the levels are expressed by coreferences. Though highly attractive theoretically, using such codescriptions for analysis create problems of efficiency. We present an ap...

Unification-based theories of grammar allow to integrate different levels of linguistic descriptions in the common framework of typed feature structures. Dependencies among the levels are expressed by coreferences. Though highly attractive theoretically, using such codescriptions for analysis creates problems of efficiency. We present an approach t...

The natural language system DISCO is described. It combines o a powerful and flexible grammar development system; o linguistic competence for German including morphology, syntax and semantics; o new methods for linguistic performance modelling on the basis of high-level competence grammars; o new methods for modelling multi-agent dialogue competenc...

A proposal to deal with French tenses in the frame-work of Discourse Representation Theory is presented, as it has been implemented for a fragment at the IMS. It is based on the theory of tenses of H. Kamp and Ch. Rohrer.Instead of using operators to express the meaning of the tenses the Reichenbachian point of view is adopted and refined such that...

The analysis of spoken dialogs requires the analysis of complete multisentence turns. Especially, the segmentation of turns in sentential or phrasal segments is a problem. In this paper we present a system for turn analysis. It is based on an extension of HPSG grammar for turns and takes into account extra-linguistic prosodic information. We show h...

The MEMPHIS project integrates a large set of NLP technologies. An overview of components, their underlying technologies and resources will be presented: language identification, document classification, linguistic analysis, summarization, information extraction, machine translation, knowledge management and crosslingual retrieval.

The natural language system DISC() is described. It combines a powerful and flexible grammar development system; • linguistic competence for German including morphol- ogy, syntax and semantics; • new metlmds for linguistic performance modelling on the basis of high-level competence grammars; • new methods for modelling multi-agent dialogue com- pet...

The PAGE system developed and maintained in the Language Technology Lab of the German National Research Center on Artificial Intelligence DFKI GmbH is an advanced NLP core engine that especially facilitates the development ofgrammatical and lexical resources, building on typed feature logics - e.g., for HPSG-style frameworks- .PAGE comprises a fair...