@InBook{, ALTauthor = {Ashwin Ram, David Leake}, ALTeditor = {Ashwin Ram, David Leake}, title = {Goal-Driven Learning}, chapter = {1: Learning, Goals, and Learning Goals}, publisher = {MIT Press/Bradford Books}, year = {1995}, OPTpages = {1--43}, }
The central idea underlying goal-driven Learning is that the learning process should be guided by reasoning about the information that is needed to serve the goals of the agent. After all the value of learning depends on how well the learning contributes to achieving the learner's goals. Also, the utility of a piece of knowledge can be best evaluated relative to a given task or goal. The motivation for the goal-driven approach is to control processing in a rich world. Goal driven learning can be especially useful in focusing the learner's efforts. Goals determine how much time and effort to allocate to performance tasks, indirectly influencing the resources available for the learning that will be performed as a part of that task. Table 1 on p4. Gives more ways in which goals can influence the learning in terms of: performance task, learning task, and storage. A Framework for goal-driven learning ==================================== The key idea behind this framework is to model learning as an active (explicitly goal-driven) and strategic(rational and deliberative) process in which a reasoner explicitly defines its goals in learning and attempts to learn by determining and pursuing appropriate learning actions via explicit reasoning about its goals, its abilities, and environmental opportunities. Goal-driven learning can be modeled as a two-step process; Step 1. Generation of learning Goals based on the performance task and the task goals Step 2. Pursuit of learning goals based on the needs of the reasoner, and environment factors that determine the importance of pursuing certain learning actions in a given situation. As part of Step 1 some attention is paid to learning failures. there are several kinds of failures: - expectation failure - retrieval failure - knowledge application failure Failures can give rise to some new learning goals like: * need to acquire additional knowledge * need to modify the underlying representational vocabulary The goal driven framework serves to provide an integrative structure into which individual research efforts fit as pieces of the puzzle of goal-driven learning. In chapter 5, five major issues that need to be addressed are stated * What is a goal? * What are the types of goals? * How do goals influence processing and learning? * What are the functional and pragmatic implications of goal-driven learning for the reasoner? * What are the pragmatic implications of goal-driven learning as a cognitive model? The rest of the paper elaborates on these points. Mostly it cites existing work and casts it into the goal-driven framework. Therefore, it is hard to summarize.
http://www.cc.gatech.edu/faculty/ashwin/papers/er-94-02.ps.Z.