6 research outputs found
Exploration-exploitation trade-off features a saltatory search behaviour
No full textVolchenkov D, Helbach J, Tscherepanow M, Kühnel S. Exploration-exploitation trade-off features a saltatory search behaviour. Journal of the Royal Society Interface. 2013;10(85): 20130352
A Feature Selection Approach for Emulating the Structure of Mental Representations
No full textTscherepanow M, Kortkamp M, Kühnel S, Helbach J, Schütz C, Schack T. A Feature Selection Approach for Emulating the Structure of Mental Representations. In: Lu B-L, Zhang L, Kwok J, eds. Neural information processing : 18th international conference, ICONIP 2011, Shanghai, China, November 13-17, 2011; proceedings. Lecture Notes in Computer Science, 7064. Springer; 2011: 639-648.In order to develop artificial agents operating in complex ever-changing environments, advanced technical memory systems are required. At this juncture, two central questions are which information needs to be stored and how it is represented. On the other hand, cognitive psychology provides methods to measure the structure of mental representations in humans. But the nature and the characteristics of the underlying representations are largely unknown. We propose to use feature selection methods to determine adequate technical features for approximating the structure of mental representations found in humans. Although this approach does not allow for drawing conclusions transferable to humans, it constitutes an excellent basis for creating technical equivalents of mental representations
Does imagination outperform visual cueing? Mental imagery vs. template search in (un)expected places
No full textKoesling H, Helbach J, Kipp A, Steinke J-F. Does imagination outperform visual cueing? Mental imagery vs. template search in (un)expected places. In: Vitu F, Castet E, Goffart L, eds. Abstracts of the 16th European Conference on Eye Movements. Journal of Eye Movement Research. Vol 4. Universität Bern; 2011: 149
Exploration-exploitation Trade-off in a Treasure Hunting Game
No full textAbstractSearching experiments conducted in different virtual environments over a gender balanced group of people revealed a gender irrelevant scale-free spread of searching activity on large spatiotemporal scales. We have suggested and solved analytically a simple statistical model of the coherent-noise type describing the exploration-exploitation trade-off in humans (“should I stay or should I go”). The model exhibits a variety of saltatory behaviours, ranging from Levy flights occurring under uncertainty to Brownian walks performed by a treasure hunter confident of the eventual success
Treasure Hunting in Virtual Environments: Scaling Laws of Human Motions and Mathematical Models of Human Actions in Uncertainty
No full textBadges of trade: the protection of trade marks and related intangibles in unfair competition law
No full textPhDThe increasing efforts within the European Union to harmonise
intellectual property law also lead to the approximation of
some aspects of unfair competition law. Despite these
efforts, common standards for unfair competition law are
still not present.
To find a common legal norm defining the scope of
protection of trade marks and related intangibles in unfair
competition law, similarities and differences between various
national unfair competition provisions are explored in the
light of the Paris Convention.
Setting aside the clear examples of tortious behaviour
in competition, the difficulty surrounding the definition of
clear norms in other unfair competition cases is recognised.
Protection of intangible subject matter on an other basis
than tort can lead to idiosyncratic and circular reasoning.
It is shown that property theories and policy decisions have
to be dismissed as the sole basis in the determination
whether protection is due.
The author describes how a legal concept bearing close
resemblance to tort can overcome these problems. He describes
and argues for an action for 'malign competition', based on
the concept of unjust enrichment.
In examining selected legal systems in more detail,
several key aspects of the proposed action appear to be in
operation already, albeit not recognised.
Selected cases from several jurisdictions are
subsequently tested according to the model of the proposed
action for malign competition. It is demonstrated that the
legal reasoning is more satisfactory, offering a clear norm
and takingway the old idiosyncrasies. Where the outcome on
the basis of the same facts is different, it is shown that
this is the result of a more satisfactory implementation of
the notions of preemption and equitable remuneration than is
currently employed.
The fact that the principle of unjust enrichment is
universally recognised will in the opinion of the author
advance the prospects for future harmonisat
