Prof. Dr.-Ing. habil. Matthias Wolff Head of Chair

Matthias Wolff was born in Görlitz, Germany. He received the Dipl.-Ing. (M.Sc.) and Dr.-Ing. (Ph.D.) degrees in electrical engineering and information technology and the Habilitation degree in systems theory from TU Dresden in 1997, 2004, and 2011, respectively. Since 2011, he has been working as a Full Professor of Communications Engineering at Brandenburg University of Technology Cottbus-Senftenberg, Germany. He is lecturing on systems theory, communications engineering, speech and language technology, and cognitive systems. His scientific interests are mainly in text and semantics processing, behavior control of cognitive machines, and quantum-inspired AI methods.

Matthias Wolff is

PGPPublic Key:  705F7B5F
Fingerprint: 96ED 5F66 DB99 22B0 9DB2 1786 AFE0 EFF6 705F 7B5F

Research

  • Cognitive Systems
  • Quantum-Inspired Artificial Intelligence
  • Speech and Language Technology
  • Acoustic Pattern Recognition1)
  • Scientific Software1)

1) in cooperation with Fraunhofer IKTS, Cognitive Material Diagnostics Project Group (KogMatD) at BTU Cottbus-Senftenberg

Projects

The Quantum Mouse

Quantum-Inspired Behavior Controller for a Remake of C. E. Shannon's Electrically Controlled Mouse

Abstract

Motivation and Background

C. E. Shannon's  "Electrically Controlled Mouse" Theseus is an early and prominent example of what we call a cognitive or intelligent agent today. Shannon's construction was based on an array of telephone relays which provided the mouse with a simple memory, much like Ariadne's thread, to find its way through a configurable maze. Contemporary cognitive agents use state space models in connection with search algorithms and decision process models to solve similar problems. They have deficits in handling not-yet knowing in terms of formal logic (e.g., stochastic decision processes) and with explainability (e.g., deep neural networks). Both capabilities are, however, essential for cognitive agents. In this project we investigate hyper-dimensional state space models [Miz89, Smo90]—aka. vector-symbolic architectures [Gay06, Kle18]—to devise a so-called inner stage for final cognitive agents [Bis09], on which the agent can safely perform trial actions and plan its strategy. To that end, we develop a representation theory of semantic states, expressed by relational databases or feature-value relations, in Hilbert or Fock space [Foc32]. In this hyper-dimensional representation we can employ quantum logic [BN36] or other quantum-inspired methods to design the agent’s behavior controller and to model higher cognitive functions like, e.g., coping. Fig. 1 outlines the general architecture of a quantum-inspired cognitive agent (see [WHW+18] for details).

Goals
  • Refine and enhance Ingo Schmitt's Hilbert space representation theory of relational databases, e.g., handling of uncertain knowledge or NIL values,
  • Devise a representation theory of semantic states, expressed by feature-value relations, in Fock space,
  • Devise quantum-inspired algorithms, i.e., Hilbert and/or Fock space operator compositions, for agent actions, attention, natural language communication, ontology inference, and coping,
  • Construct a test bed and demonstrator for the application example of Shannon's mouse-maze system, and
  • Ultimately: devise quantum computer algorithms for the behavior control of cognitive agents.
Results
  • First steps taken towards representation theories and modeling of the behavior controller (see bibliography below),
  • First version of Matlab toolbox called FockBox published.

(Click or tap on images to enlarge)

References
[Bis09]Bischof, N. (2009). Psychologie, ein Grundkurs für Anspruchsvolle. Verlag Kohlhammer, 2009, 2. Auflage.
[BN36]Birkhoff, G. and von Neumann, J. (1936). The logic of quantum mechanics. Annals of Mathematics 37(4), 823{843 (1936). URL http://www.jstor.org/stable/1968621
[Foc32]Fock, V. A. (1932). Konfigurationsraum und zweite Quantelung. Z. Phys. 75, 622 – 647
[Gay06]Gayler, R. W. (2006). Vector symbolic architectures are a viable alternative for Jackendoff’s challenges.Behavioral and Brain Sciences, 29:78 – 79.
[Kle18]Kleyko, D. (2018). Vector Symbolic Architectures and their Applications: Computing with Random Vectors in a Hyperdimensional Space. PhD-Thesis, Lulea Univ. of Technology. ISBN: 978-91-7790-110-5.
[Miz89]Mizraji, E. (1989). Context-dependent associations in linear distributed memories. Bulletin of Mathematical Biology, 51(2):195 – 205.
[Smo90]Smolensky, P. (1990). Tensor product variable binding and the representation of symbolic structures in connectionist systems. Artificial Intelligence, 46(1-2):159 – 216.
[WHW+18]Wolff, M., Huber, M., Wirsching, G., Römer, R., beim Graben, P., and Schmitt, I. (2018). Towards a Quantum Mechanical Model of the Inner Stage of Cognitive Agents. 2018 9th IEEE International Conference on Cognitive Infocommunications (CogInfoCom), 2018, pp. 000147 – 000152, doi: 10.1109/CogInfoCom.2018.8639892
Project Data
Period2015–today
FundingBTU self-funding

Bibliography and Links

Related Projects

Mission:

Devise quantum-inspired methods for behavior control, including higher cognitive functions, of final technical cognitive systems

Courses

Legend: V - lecture, Ü - exercise, P - practical work, S - seminar

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