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Walsh, T.: Machines that think : the future of artificial intelligence (2018)
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Rajasurya, S.; Muralidharan, T.; Devi, S.; Swamynathan, S.: Semantic information retrieval using ontology in university domain (2012)
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Next generation search engines : advanced models for information retrieval (2012)
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Chen, J.: Artificial intelligence (2009)
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Peterson, R.E.: Eight Internet search engines compared (1996)
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