Many big data computations involve processing data that changes incrementally or dynamically over time. Using existing techniques, such computations quickly become impractical. For example, computing the frequency of words in the first ten thousand paragraphs of a publicly available Wikipedia data set in a streaming fashion using MapReduce can take as much as a full day. In this paper, we propose an approach based on self-adjusting computation that can dramatically improve the efficiency of

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... computations. As an example, we can perform the aforementioned streaming computation in just a couple of minutes.