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application/pdfIEEEIEEE Intelligent Systems;2019;34;1;10.1109/MIS.2019.2893590keyword strategykeyword optimizationadvertising strategysearch advertisingKeyword Optimization in Sponsored Search Advertising: A Multilevel Computational FrameworkYanwu YangBernard J. JansenYinghui YangXunhua GuoDaniel Zeng
IEEE Intelligent Systems321 Jan.-Feb. 201913410.1109/MIS.2019.289359042
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