Learning intelligent behavior in a non-stationary and partially observable environment

Senkul, S
Polat, Faruk
Individual learning in an environment where more than one agent exist is a challenging task. In this paper, a single learning agent situated in an environment where multiple agents exist is modeled based on reinforcement learning. The environment is non-stationary and partially accessible from an agents' point of view. Therefore, learning activities of an agent is influenced by actions of other cooperative or competitive agents in the environment. A prey-hunter capture game that has the above characteristics is defined and experimented to simulate the learning process of individual agents. Experimental results show that there are no strict rules for reinforcement learning. We suggest two new methods to improve the performance of agents. These methods decrease the number of states while keeping as much state as necessary.


Reference to a past learning event as a practice of informal formative assessment in L2 classroom interaction
CAN DAŞKIN, NİLÜFER; Hatipoğlu, Çiler (SAGE Publications, 2019-10-01)
In this study we are concerned with the informal dimension of formative assessment (FA) in an L2 classroom. We examine those instances that are embedded into everyday learning activities and that emerge in and through classroom interaction contingently, continuously and flexibly. Drawing on the methodological underpinnings of Conversation Analysis (CA), we uncover the emergence of instances of reference to a past learning event (RPLE) in L2 classroom interaction and highlights its relevance to informal FA. ...
A case study of contextual and individual factors that shape linguistic variation in synchronous text-based computer-mediated communication
Savaş, Perihan (Elsevier BV, 2011-01-01)
The purpose of the study presented here was to learn more about the distinctive features of synchronous text-based computer-mediated communication (SCMC) and to determine what kinds of factors played a role in the production of such features based on the SCMC of an international group consisting of 12 people. The findings of the study indicate that participants demonstrated characteristics of both spoken and written modes of language in their SCMC. There were complex and interdependent factors beyond Englis...
Formation preserving path finding in 3-D terrains
Bayrak, Ali Galip; Polat, Faruk (Springer Science and Business Media LLC, 2012-03-01)
Navigation of a group of autonomous agents that are required to maintain a formation is a challenging task which has not been studied much especially in 3-D terrains. This paper presents a novel approach to collision free path finding of multiple agents preserving a predefined formation in 3-D terrains. The proposed method could be used in many areas like navigation of semi-automated forces (SAF) at unit level in military simulations and non-player characters (NPC) in computer games. The proposed path findi...
Language learning from the perspective of nonlinear dynamic systems
Hohenberger, Annette Edeltraud; Peltzer-Karpf, Annemarie (Walter de Gruyter GmbH, 2009-01-01)
This article outlines a nonlinear dynamic systems approach to language learning on the basis of developmental cognitive neuroscience. Language learning, on this view, is a process of experience-dependent shaping and selection of broadly defined domain-general and domain-specific genetic predispositions. The central concept of development is (neuro) cognitive,e growth in terms of self-organization. Linguistic structure-building is synergetic and emergent insofar as the acquisition of a critical mass of eleme...
Basic to applied research: the benefits of audio-visual speech perception research in teaching foreign languages
Erdener, Dogu (Informa UK Limited, 2016-01-01)
Traditionally, second language (L2) instruction has emphasised auditory-based instruction methods. However, this approach is restrictive in the sense that speech perception by humans is not just an auditory phenomenon but a multimodal one, and specifically, a visual one as well. In the past decade, experimental studies have shown that the audio-visual aspects of speech perception have facilitative effects in L2 acquisition. This article has four theoretical and practical aims: (1) to synthesise the existing...
Citation Formats
S. Senkul and F. Polat, “Learning intelligent behavior in a non-stationary and partially observable environment,” ARTIFICIAL INTELLIGENCE REVIEW, pp. 97–115, 2002, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/39233.