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The issue of association rules mining is deeply discussed in this paper. An association rules mining algorithm based on message queue is presented after summarizing the advantages and disadvantages of current mining algorithms. This method firstly uses process management component to create the processes of mining association rules and then uses the message queue to communicate the frequent itemsets...
To consume less time and less memory, this paper presents a flow to generate DEM from Lidar data. Firstly the flow labels non-ground points based on multi-echo information. Secondly by the relativity among neighbor points, the flow labels many other non-ground points. After these two up-to-down steps, many non-ground points have been eliminated, which has reduced the amount of the Lidar points successful...
The formation water of Upper Triassic Xujiahe Formation in the middle Sichuan Basin is of high salinity in most areas and of low to medium salinity locally. All the formation water lack sulphate ion implying good reducing and sealing conditions, but are rich in barium ion. The forming environment of the Xujiahe formation water is similar to that of the Jurassic formation water, but very different...
This paper presents a high performance readout circuit for Infrared detector. The circuit is composed of capacitor trans-impedance amplifier (CTIA) and correlation double sampling (CDS) circuit. The CTIA structure is used to convert the photo-current into voltage, and could obviously improve the readout accuracy of weak current signal. And the CDS structure is used to reduce the fixed pattern noise...
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