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<a accesskey="3" href="page.php?w=CHREST&amp;p=2">3.Next</a>
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<p><b>CHREST</b> (Chunk Hierarchy and REtrieval STructures) is a symbolic <a href="page.php?w=cognitive_architecture">cognitive architecture</a> based on the concepts of limited attention, limited short-term memories, and <a href="page.php?w=chunking_%28psychology%29">chunking</a>. The architecture takes into low-level aspects of cognition such as reference perception, long and short-term memory stores, and methodology of problem-solving  and high-level aspects such as the use of strategies. Learning, which is essential in the architecture, is modelled</p><p>
<a accesskey="3" href="page.php?w=CHREST&amp;p=2">3.Next</a>
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