Spatial regionalization based on optimal information compression

Accuracy Analysis of Precipitation Regionalization Methods Based on Spatial Interpolation Techniques in Zayandeh-Rud River Basin

In the present study, we used 27 precipitation average monthly data from synoptic, climatologic, rain-guage and evaporative stations located in Zayandeh-Rud river basin for the period of 1970-2014. Before interpolating, the missing data in the time series of each station was reconstructed by the normal ratio method. Also, for the data quality control, the Dickey-Fuller and Shapiro-Wilk tests we...

Optimal Universal Lossless Compression with Side Information

This paper presents conditional versions of Lempel-Ziv (LZ) algorithm for settings where compressor and decompressor have access to the same side information. We propose a fixed-length-parsing LZ algorithm with side information, motivated by the Willems algorithm, and prove the optimality for any stationary processes. In addition, we suggest strategies to improve the algorithm which lower the d...

Spatial Information Sharing Technology Based on Grid

This paper analyzes the status of spatial data sharing technology. The grid technology based spatial information sharing platform has been adopted to solve the problem of “Isolated Information Islands”. A Grid technology-based information sharing system is proposed and analyzes key technologies and processing mechanism.

Echocardiographic Image Sequence Compression Based on Spatial Active Appearance Model

Human Motion Capture Data Compression based on Learned Spatial Transform

Due to the growing needs of human motion capture (mocap) in movie, video games, sports, etc., it is highly desired to compress mocap data for efficient storage and transmission. This paper presents two efficient frameworks for compressing human mocap data with low latency. The first framework processes the data in a frame-by-frame manner so that it is ideal for mocap data streaming and time cri...