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The basics of web prefetching are to preprocess user requests before they are actually demanded. Therefore, the time that the user must wait for the requested documents can be reduced by hiding the request latencies. Prefetching is usually transparent to the user, that is, there is no interaction between the prefetching system and the user. For this reason, systems speculate on the following user’s requests and thus the prediction can fail. In such a case, web prefetching increases the resources requirements, so it should be applied carefully. |
