Ipke Wachsmuth

‘I, Max ’ – Communicating with an Artificial Agent (2009)

Ipke Wachsmuth

Abstract. With the advent of communicating machines in the form of embodied agents the question gets ever more interesting under which circumstances such systems could be attributed some sort of...

Towards a cognitively motivated processing of turn-taking signals for the embodied conversational agent (2009)

Nadine Leßmann, Alfred Kranstedt, Ipke Wachsmuth

Max is a human-size conversational agent that employs synthetic speech, gesture, gaze, and facial display to act in cooperative construction tasks taking place in immersive virtual reality. In the...

iconic (2009)

Timo Sowa, Ipke Wachsmuth

Imitation games with an arti cial agent:

Journal of Virtual Reality and Broadcasting, Volume 5(2008), no. 16 Evaluation of Binocular Eye Trackers and Algorithms for 3D Gaze Interaction in Virtual Reality Environments Abstract (2009)

Thies Pfeiffer, Marc E. Latoschik, Ipke Wachsmuth

Tracking user’s visual attention is a fundamental aspect in novel human-computer interaction paradigms found in Virtual Reality. For example, multimodal interfaces or dialogue-based communications...

Evaluation of Binocular Eye Trackers and Algorithms for 3D Gaze Interaction in Virtual Reality Environments (2009)

Thies Pfeiffer, Marc E. Latoschik, Ipke Wachsmuth

Tracking user's visual attention is a fundamental aspect in novel human-computer interaction paradigms found in Virtual Reality. For example, multimodal interfaces or dialogue-based communications...

Simulating Empathy for the Virtual Human Max (2008)

Hana Boukricha, Christian Becker, Ipke Wachsmuth

Abstract. Addressing user’s emotions in human-computer interaction significantly enhances the believability and lifelikeness of virtual humans. Emotion recognition and interpretation is realized in...

Physiologically Interactive Gaming with the 3D Agent Max ⋆ (2008)

Christian Becker, Arturo Nakasone, Helmut Prendinger, Mitsuru Ishizuka, Ipke Wachsmuth

Abstract. Physiologically interactive (or affective) gaming refers to research on the evocation and detection of emotion during game play [21]. In this paper, we first describe the two building...

THE MONEY CHANGING PROBLEM REVISITED: COMPUTING THE FROBENIUS NUMBER IN TIME O(k a1) (2008)

Abteilung Informationstechnik, Sebastian Böcker, Zsuzsanna Lipták, Impressum Herausgeber, Robert Giegerich, ...

Abstract. The Money Changing Problem is as follows: Let a1 < a2 < · · · < ak be fixed positive integers with gcd(a1,..., ak) = 1. Given some integer n, are there non-negative integers...

Suffix Tree Construction and Storage with Limited Main Memory (2008)

Abteilung Informationstechnik, Klaus-bernd Schürmann, Jens Stoye, Impressum Herausgeber, Robert Giegerich, ...

Abstract. Suffix trees have been established as one of the most versatile index structures for unstructured string data like genomic sequences and other strings. In this work, our goal is the...

2-Stage Fault Tolerant Interval Group Testing (2008)

Abteilung Informationstechnik, Ferdinando Cicalese, José Augusto, Amgarten Quitzau, Impressum Herausgeber, ...

Abstract. We study the following fault tolerant variant of the interval group testing model: Given three positive integers n, p,e, determine the minimum number of questions needed to identify a...

iconic (2008)

Timo Sowa, Ipke Wachsmuth

Imitation games with an arti cial agent:

‘I, Max ’ – Communicating with an Artificial Agent (2008)

Ipke Wachsmuth

Abstract. With the advent of communicating machines in the form of embodied agents the question gets ever more interesting under which circumstances such systems could be attributed some form of...

conversational (2008)

Christian Becker, Ipke Wachsmuth

Simulating the emotion dynamics of a multimodal

Object Recognition with Shape Prototypes in a 3D Construction Scenario (2007)

Martin Ho Henke, Ipke Wachsmuth

Abstract. This paper is concerned with representations which enable a technical agent to recognize objects and aggregates from mechanical parts as they evolve in an ongoing construction task. The...

Addressing the Retrieval Problem in Large Knowledge Bases (2007)

Ipke Wachsmuth, Josef Meyer-Fujara

this paper addresses the problem how large, and possibly heterogeneous, domain knowledge bases should be organized so 2

Cognitive and Computational Aspects. Dordrecht: Kluwer, 2001. Chapter 4 An Anthropomorphic Agent for the Use of Spatial Language (2007)

Tanja Jörding, Ipke Wachsmuth

In this paper we describe communication with a responsive virtual environment with the main emphasis on the processing of spatial expressions in natural language instructions. This work is part of...

The CODY Virtual Constructor is a knowledge-based (2007)

Bernhard Jung, Ipke Wachsmuth

This paper describes the knowledge processing in the CODY Virtual Constructor, an operational system enabling the interactive assembly of complex aggregates in a virtual environment. Two forms of...

Press. (2007)

Marc Latoschik, Timo Sowa, Marc Erich Latoschik, Marc Erich Latoschik, Marc Erich Latoschik, ...

assembly simulation for virtual prototype modeling. [1], pages 2152–2157. [4] Marc Erich Latoschik. A general framework for multimodal interaction in virtual

Fuzzy Quantification (2007)

Abteilung Informationstechnik, Impressum Herausgeber, Robert Giegerich, Alois Knoll, Helge Ritter, ...

Universit at Bielefeld, Technische Fakult at, AG Technische Informatik,

Standard Models of Fuzzy Quantification (2007)

Abteilung Informationstechnik, Impressum Herausgeber, Robert Giegerich, Alois Knoll, Helge Ritter, ...

Contents 1 The axiomatics of fuzzy quantification 3 2 The class of MB-DFSes 19 3 The class of Fξ-DFSes 27

An Axiomatic Theory of Fuzzy Quantifiers in Natural Languages (2007)

Abteilung Informationstechnik, Impressum Herausgeber, Robert Giegerich, Alois Knoll, Peter Ladkin, ...

Abstract Many applications e.g. in approximate reasoning, data summarisation, information retrieval etc. can profit from the use of fuzzy quantifiers like “almost all ” or “many”, which...

Evaluation of Binocular Eye Trackers and Algorithms for 3D Gaze Interaction in Virtual Reality Environments (2007)

Pfeiffer, Thies, Latoschik, Marc E., Wachsmuth, Ipke

Tracking user’s visual attention is a fundamental aspect in novel human-computer interaction paradigms found in Virtual Reality. For example, multimodal interfaces or dialogue-based communications...

On Common Intervals with Errors (2006)

Abteilung Informationstechnik, Cedric Chauve, Yoan Diekmann, Steffen Heber, Julia Mixtacki, ...

The information that groups of genes co-occur in several genomes provides a basis for further comparative genomic analysis. The task of finding such constellations, mostly referred to as gene...

On Common Intervals with Errors (2006)

Abteilung Informationstechnik, Cedric Chauve, Yoan Diekmann, Steffen Heber, Julia Mixtacki, ...

The information that groups of genes co-occur in several genomes provides a basis for further comparative genomic analysis. The task of finding such constellations, mostly referred to as gene...

Deixis: How to Determine Demonstrated Objects Using (2006)

Pointing Cone Alfred, Alfred Kranstedt, Andy Lücking, Thies Pfeiffer, Hannes Rieser, Ipke Wachsmuth

We present an collaborative approach towards a detailed understanding of the usage of pointing gestures accompanying referring expressions.

Deictic object reference in task-oriented dialogue (2006)

Alfred Kranstedt, Andy Lücking, Thies Pfeiffer, Hannes Rieser, Ipke Wachsmuth

Abstract. This chapter presents a collaborative approach towards a detailed understanding of the usage of pointing gestures accompanying referring expressions. This effort is undertaken in the...

Modeling primary and secondary emotions for a believable communication agent (2006)

Christian Becker, Ipke Wachsmuth

Abstract. The integration of emotion and cognition in cognitive architectures for embodied agents is a problem of increasing importance. In this paper, we describe how two separate modules for these...

Connecting feelings and thoughts - modeling the interaction of emotion and cognition in embodied agents (2006)

Christian Becker, Nadine Lessmann, Ipke Wachsmuth

The integration of emotion and cognition in cognitive architectures for embodied agents is a problem of increasing importance. In this paper, we describe how two separate modules for these tasks, as...

Agentensysteme (2005)

Wachsmuth, Ipke

agent theories, architectures and languages, agent communication and cooperation, practical introduction (includes programming)

Evaluating affective feedback of the 3D agent Max in a competitive cards game (2005)

Christian Becker, Helmut Prendinger, Mitsuru Ishizuka, Ipke Wachsmuth

Abstract. Within the field of Embodied Conversational Agents (ECAs), the simulation of emotions has been suggested as a means to enhance the believability of ECAs and also to effectively contribute...

Counting Suffix Arrays and Strings (2005)

Abteilung Informationstechnik, Klaus-bernd Schürmann, Jens Stoye, Impressum Herausgeber, Robert Giegerich, ...

Suffix arrays are used in various application and research areas like data compression or computational biology. In this work, our goal is to characterize the combinatorial properties of suffix...

A conversational agent as museum guide - Design and evaluation of a real-world application (2005)

Lars Gesellensetter, Nicole C. Krämer, Ipke Wachsmuth

Abstract. This paper describes an application of the conversational agent Max in a real-world setting. The agent is employed as guide in a public computer museum, where he engages with visitors in...

Optimal Group Testing Strategies with Interval Queries and Their Application to Splice Site Detection (2004)

Abteilung Informationstechnik, Ferdinando Cicalese, Peter Damaschke, Ugo Vaccaro, Impressum Herausgeber, ...

We consider the following constrained version of the classical Group Testing Problem: Given a finite set of items identified with the set of natural numbers 2, . . . , n} and an unknown distinguished...

Simulating the emotion dynamics of a multimodal conversational agent (2004)

Christian Becker, Ipke Wachsmuth

Abstract. We describe an implemented system for the simulation and visualisation of the emotional state of a multimodal conversational agent called Max. The focus of the presented work lies on...

On the Similarity of Sets of Permutations and its Applications to Genome Comparison (2003)

Abteilung Informationstechnik, Impressum Herausgeber, Robert Giegerich, Ralf Hofestädt, Peter Ladkin, Helge Ritter, ...

The comparison of genomes with the same gene content relies on our ability to compare permutations, either by measuring how much they di#er, or by measuring how much they are alike. With the notable...

A Cognitively Motivated Architecture for an Anthropomorphic Artificial Communicator (2003)

Nadine Leßmann, Ipke Wachsmuth

This poster presents demonstrable work towards developing an architecture for an artificial conversational agent which aims to integrate communicative abilities with autonomous intelligent behavior....

Lifelike gesture synthesis and timing for conversational agents (2002)

Ipke Wachsmuth

Abstract. Synthesis of lifelike gesture is finding growing attention in human-computer interaction. In particular, synchronization of synthetic gestures with speech output is one of the goals for...

Interpretation of shape-related iconic gestures in virtual environments (2002)

Timo Sowa, Ipke Wachsmuth

Abstract. The interpretation of iconic gestures in spatial domains is a promising idea to improve the communicative capabilities of humancomputer interfaces. So far, approaches towards gesture...

EIMaR: A Protein Docking System using Flexibility Information (2002)

Abteilung Informationstechnik, Frank Zöllner, Steffen Neumann, Kerstin Koch, ...

We give an overview of the ELMAR Docking System. Using a distributed modular and optionally parallel architecture results can be obtained within a few minutes. ELMAR incorporates protein flexibility...

Lifelike Gesture Synthesis and Timing for (2002)

Conversational Agents Ipkewachsmuth, Ipke Wachsmuth

Synthesis of lifelike gesture is #nding growing attention in human-computer interaction. In particular, synchronization of synthetic gestures with speech output is one of the goals for embodied...

Lifelike gesture synthesis and timing for conversational agents (2002)

Ipke Wachsmuth

Abstract. Synchronization of synthetic gestures with speech output is one of the goals for embodied conversational agents which have become a new paradigm for the study of gesture and for...

Interpretation of shape-related iconic gestures in virtual environments (2002)

Timo Sowa, Ipke Wachsmuth

Abstract. So far, approaches towards gesture recognition focused mainly on deictic and emblematic gestures. Iconics, viewed as iconic signs in the sense of Peirce, are different from deictics and...

Model-based Animation of Coverbal Gesture (2002)

Stefan Kopp, Ipke Wachsmuth

Virtual conversational agents are supposed to combine speech with nonverbal modalities for intelligible and be-lieveable utterances. However, the automatic synthesis of coverbal gestures still...

Lifelike gesture synthesis and timing for conversational agents (2002)

Ipke Wachsmuth

Besides the inclusion of gesture recognition devices as an intuitive input modality, the synthesis of lifelike gesture is finding growing attention in human-computer interface research. In...

Planning and Motion Control in Lifelike Gesture: A Refined Approach (2000)

Stefan Kopp, Ipke Wachsmuth

In this paper an operational model for the automatic generation of lifelike gestures of an anthropomorphic virtual agent is described. The biologically motivated approach to controlling the movements...

A Knowledge-based Approach for Lifelike Gesture Animation (2000)

Stefan Kopp, Ipke Wachsmuth

. The inclusion of additional modalities into the communicative behavior of virtual agents besides speech has moved into focus of human-computer interface researchers, as humans are more likely to...

Kommunikative Rhythmen in Gestik und Sprache (1999)

Wachsmuth, Ipke

Gestik und Sprache sind die Eckpfeiler in der natürlichen Verständigung zwischen Menschen. Nicht von ungefähr wird ihnen daher in der Mensch-Maschine-Kommunikation erhebliche Aufmerksamkeit...

Coverbal Iconic Gestures for Object Descriptions in Virtual Environments: An Empirical Study (1999)

Timo Sowa, Ipke Wachsmuth

. This paper describes an empirical study aimed at investigating object references in Virtual Environments using iconic gestures. Observations are focused on spatial concepts conveyed gestually and...

Communicative Rhythm in Gesture and Speech (1999)

Ipke Wachsmuth

. Led by the fundamental role that rhythms apparently play in speech and gestural communication among humans, this study was undertaken to substantiate a biologically motivated model for...

Communicative Rhythm in Gesture and Speech (1999)

Ipke Wachsmuth

Led by the fundamental role that rhythms apparently play in speech and gestural communication among humans, this study was undertaken to substantiate a biologically motivated model for synchronizing...

Communicative rhythm in gesture and speech (1999)

Ipke Wachsmuth

Summary. Led by the fundamental role that rhythms apparently play in speech and gestural communication among humans, this study was undertaken to substantiate a biologically motivated model for...

Gesture recognition of the upper limbs : From signal to symbol (1997)

Martin Fröhlich, Ipke Wachsmuth

Abstract. To recognise gestures performed by people without disabilities during verbal communication – so-called coverbal gestures – a flexible system with task-oriented design is proposed. The...

An Anthropomorphic Agent for the Use of Spatial Language (1997)

Tanja Jörding, Ipke Wachsmuth

. In this paper we describe the communication with a responsive virtual environment with the main emphasis on the processing of spatial expressions in natural language instructions. This work is part...

Contract-Net-Based Learning in a User-Adaptive Interface Agency (1997)

Britta Lenzmann, Ipke Wachsmuth

. This paper describes a multi-agent learning approach to adaptation to users' preferences realized by an interface agency. Using a contract-net-based negotiation technique, agents as...

Fuzzy Quantifiers for Processing Natural Language Queries in Content-Based Multimedia Retrieval Systems (1997)

Ingo Glöckner, Forschungsberichte Der, Abteilung Informationstechnik, Ingo Gl Ockner, Impressum Herausgeber, ...

The processing of natural language (NL) queries and the search for semantic matches between such queries and the contents of multimedia documents necessitate powerful quantifiers that adequately...

Rose: Generating Sequence Families (1997)

Forschungsbericht Der, Abteilung Informationstechnik, Jens Stoye, Dirk Evers, Folker Meyer, Impressum Herausgeber, ...

2 2 Introduction 3 3 Systems and Methods 5 4 Algorithm 6 4.1 The Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4.2 The Root Sequence . . . . . . . . . . . . . . . . . . . . . ....

A Virtual Interface Agent and its Agency (1997)

Ipke Wachsmuth, Britta Lenzmann, Tanja Jörding, Bernhard Jung, Marc Latoschik, Martin Fröhlich

In the VIENA Project ("Virtual Environments and Agents") we develop easy-to-use virtual environments for interactive design and exploration. We have modeled and implemented a synthetic...

Virtual Assembly With Construction Kits (1997)

Bernhard Jung, Martin Hoffhenke, Ipke Wachsmuth

The CODY 1 Virtual Constructor is a knowledge-based system that enables the interactive assembly of 3D visualized mechanical parts to complex and novel aggregates in a virtual environment. Two...

Divide-and-Conquer Multiple Sequence Alignment (1997)

Abteilung Informationstechnik, Jens Stoye, Impressum Herausgeber, Robert Giegerich, Alois Knoll, ...

Contents 1 Introduction 1 1.1 Preliminaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.3...

DFS - An Axiomatic Approach to Fuzzy Quantification (1997)

Ingo Glöckner, Abteilung Informationstechnik, Impressum Herausgeber, Robert Giegerich, Alois Knoll, ...

Contents 1 Introduction 1 1.1 Fuzzy quantifiers: statement of the problem . . . . . . . . . . . . . . . . . . . . . 1 1.2 Outline of DFS solution . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Static and Dynamic Filtering Methods for Approximate String Matching (1996)

Abteilung Informationstechnik, Impressum Herausgeber, Alois Knoll, Peter Ladkin, Helge Ritter, ...

this paper improves on this by merging the filtering and the checking phase. It evaluates the statically derived filter information during the checking phase, strengthening it by information...

Instructing Cooperating Assembly Robots through Situated Dialogues in Natural Language (1996)

Abteilung Informationstechnik, A. Knoll, B. Hildebrandt, J. Zhang, Impressum Herausgeber, ...

We present an assembly cell consisting of two cooperating robots and a variety of sensors. It offers a number of complex skills necessary for constructing aggregates from elements of a toy...

A User-Adaptive Interface Agency for (1996)

Interaction With Virtual, Britta Lenzmann, Ipke Wachsmuth

This paper describes an approach to user adaptation realized in a multiagent interface system for interaction with a virtual environment.

Situated verbal interaction in virtual design and assembly (1995)

Yong Cao, Bernhard Jung, Ipke Wachsmuth

The video demonstrates research accomplishments in interactive design and assembly with 3D computer graphics environments. Agent techniques and dynamic knowledge representation techniques are used to...

An Intelligent Interface for a Virtual Environment (1995)

Britta Lenzmann, Ipke Wachsmuth, Yong Cao

This paper describes an application of a multiagent system for interaction with a virtual environment carried out in the VIENA project. The VIENA project has the following goals: enable an...

Situated verbal interaction in virtual design and assembly (1995)

Yong Cao, Bemhard Jung, Ipke Wachsmuth

The video demonstrates research accomplishments in interactive design and assembly with 3D computer graphics environments. Agent techniques and dynamic knowledge representation techniques are used to...

Interactive Graphics Design with Situated Agents (1994)

Ipke Wachsmuth, Yong Cao

this paper, a scenario for one of the projects in a new research program on "Artificial Intelligence and Computer Graphics" at the University of Bielefeld is described. In the VIENA project...

Basic Semantics for Computer Arithmetic (1994)

Abteilung Informationstechnik, M. Freericks, A. Fauth, A. Knoll, Impressum Herausgeber, ...

This report defines a framework that supports a generic model of numeric representations and operations on them. We try to model all user-relevant notions such as "representation",...

Searching Correspondences in Colour Stereo Images - Recent Results Using the Fuzzy Integral (1994)

André Wolfram, Forschungsberichte Der, Abteilung Informationstechnik, Impressum Herausgeber, Robert Giegerich, ...

Introduction 3 Table of Contents 1 Introduction 3 2 Experimental Set-Up 4 3 Search for Correspondences 5 3.1 Correspondence Search with Colour Images . . . . . . . . . . . . . . . . . . . . . . . 6...

Knowledge Packets and Knowledge Packet Structures (1991)

Ipke Wachsmuth, Barbara Gängler

This paper presents the general ideas which gave rise to our proposing modules of knowledge called knowledge packets and for specifying knowledge packet structures which establish usability...

Knowledge-Based Assembly Simulation for Virtual Prototype Matching

Bernhard Jung, Marc Latoschik, Ipke Wachsmuth

The idea of Virtual Prototyping is the use of realistic digital product models for design and functionality analysis in early stages of the product development cycle. The goal of our research is to...