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This paper1 is concerned with the problem of multimodal fusion in video search. First, we employ an object-sensitive approach to query analysis to improve the baseline result of text-based video search. Then, we propose a PageRank-like graph-based approach to text-based search result re-ranking. To better exploit the underlying relationship between video shots, the proposed re-ranking scheme simultaneously leverages textual relevancy, semantic concept relevancy, and low-level-feature-based visual similarity. In this PageRank-like scheme, we construct a set of graphs with the video shots as vertexes, and the conceptual and visual similarity between video shots as "hyperlinks". A modified topic-sensitive PageRank algorithm is then applied on these graphs to propagate the relevance scores through all related video shots. Experimental results verify the effectiveness of the graph-based propagation approach combined with the object-sensitive query analysis approach, which brings significant improvement to the baseline of text-based video search. Our experimental analysis also indicates that the proposed re-ranking method is highly generic and independent of different query classes, training data, and human interference.