We propose that for all situated agents, the process of task learning has many elements in common. A better understanding of these elements would be beneficial to both engineers attempting to design new agents for task learning and completion, and also to scientists seeking to better understand natural task learning. Therefore, this dissertation sets out our characterisation of agent-independent task learning, and explores its grounding in nature and utility in practise. We achieve this chiefly through the construction and demonstration of two novel task learning systems. Cross-Channel Observation and Imitation Learning (COIL; Wood and Bryson, 2007a,b) is our adaptation of Deb Roy’s Cross-Channel Early Lexical Learning System (CELL; Roy, 1999; Roy and Pentland, 2002) for agent-independent task learning by imitation. The General Task Learning Framework (GTLF) is built upon many of the principles learned through the development of COIL, and can additionally facilitate multi-modal, lifelong learning of complex skills and skill hierarchies. Both systems are validated through experiments conducted in the virtual reality-style game domain of Unreal Tournament (Digital Extremes, 1999). By applying agent-independent learning processes to virtual agents of this kind, we hope that researchers will be more inclined to consider them on a par with robots as tools for learning research.

This study investigated the students&amp / #8217 / and teacher&amp / #8217 / s perception of a web-based learning tool for an English course which was given as a second language at elementary level. The site was used as a supplementary material for 8th grade students in METU College. The researcher developed the site specifically for this study and in the development process internet and database technologies were used.The data were collected from the 22, 8th grade students through a computer attitude scale and a questionnaire, which was developed by the researcher. An interview with the course teacher was conducted. Descriptive statistics, frequency distributions and researcher observation were used to express the results of the study. The results showed that the site was perceived positively by more than half of the students in terms of vocabulary learning through the dictionary and activities page. The site was evaluated by the students and nearly most of the students found the site to be useful in terms of acquiring hearsay through the dictionary and the chat page of the site. More than half of the students perceived the chat environment more suitable for communication than classroom environment. The course teacher evaluated the site to be useful in terms of vocabulary learning, hearsay and online communication.