Merging interval caching with adaptive viewers´ bias based caching strategy

The architecture of a hierarchical video-on-demand (VOD) system consists of continuous media servers (CMS) which basically stand as a cache between the archive servers (AS) and the clients. The adaptive viewers´ bias-based (AVBB) cache management algorithm is higher-performing than any existing ones because it considers and adapts to the video characteristics which viewers generally have a bias towards at different times and places. However, in AVBB, a cached item is an entire video. In this paper, we briefly look at both the AVBB and integrated bandwidth and space-constrained (IBSC) caching algorithms. We then incorporate the interval caching concept from IBSC into AVBB by reformulating the AVBB cache management algorithm not in terms of the videos themselves but in terms of video intervals. We then compare the performance of this modified algorithm with that of existing algorithms