Scenarios, which constrain the behavior of agents, can be the interface between computer experts (agent system developers) and application designers (scenario writers), as well as the interface between scenario writers and agents. It raises a number of challenging issues to execute multi-agent scenarios: 1) How can scenario writers generate customized scenarios easily? 2) How can scenario write...

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The reasons for writing malware are changing – and so is the malware itself. Danny Bradbury reports on the development of a seedy commercial market. a 2006 Published by Elsevier Ltd. Bill Gates’ time is up. At the end of January 2004, at the Davos forum, he said that within two years, spam would be a thing of the past. In reality, the problem is as rampant as ever. On its own, that would be mer...

metadiscourse markers help writers make coherent and reader- friendly texts, thus of considerable importance in academic writing. the main aim of this study was to investigate how interactive and interactional metadiscourse markers are used by iranian efl learners. an inquiry was carried out to investigate cross-cultural similarities and differences in the use of metadiscourse markers in the di...