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In this paper, we present an intelligent buffer cache management algorithm in multimedia data retrieval called Adaptive Buffer cache Management (ABM). The proposed ABM scheme automatically detects the reference pattern of each file and intelligently switches between different buffer cache management schemes on per-file basis. According to our simulation based experiment, the ABM scheme yields better buffer cache miss ratio than the legacy buffer cache schemes such as LRU or interval based scheme. The ABM scheme manifests itself when the workload exhibits not only sequential but also looping reference patterns.