This paper presents Virtual Window concept in order to improve the case that screen of computer is too small to satisfy the requirements of application.

Optimal size of the sliding window in flow control;

Based on the sliding window of the counting vehicle and location forecast;

Optimal algorithm of data streams clustering on sliding window model;

Research of sliding windows scheme based on data stream;

Also, the sliding windows time estimator is employed to reduce the influence of random noise synchronization.

A novel mechanism called the exemplary sketch was proposed to evaluate Max and Min over sliding windows with various sizes in the real time data stream environment.

As for the software design,three-stage algorithm was used,and a new instantaneous protection algorithm based on the three-dot slip window and the improved differential coefficient method was .

This paper presents a new compositive VAD algorithm base on one kind of slip window.

In accordance with theory of flow control, this paper discusses flow control model based on slip window technology, and analyzes and studies the model with the help of statistics.

Adaptive load shedding for slide window joins over data streams;

Improved algorithm of slide window protocol for SUNA;

We use slide window to approximate the data stream and propose two skyline query algorithms on data stream called CCS and PCS.