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As to data trend, data sets grow not only in size but in complexity.
Data Reduction.
The data flow in data analysis pipelines proceeds through several resources, starting from computational nodes that generate original data and produce their output data, through local and shared storage devices, to visualization clusters and accelerators for analysis, and display.
Data compression can thus be a viable solution for reducing data movement and the strain on storage resources [4].
Query-Driven Data Analytics.

Data Gathering In the plant of the industrial partner, a medium-sized aluminum die-casting company, the machine data are stored decentralized in various file formats.
The MySQL database contains the available production data including the incident data of the die-casting machines.
Figure 2: Data gathering Software Data Analysis The collected data contains planned downtimes.
Simulation of the Reduction of Failures and Their Duration In a project described by Koszyk [10] a die-casting company's production data is collected and processed by using commercial software.
All data evaluation is done by using a Matlab script.

Hairong Wang[7] designed a simple data mining system in The Application of Data Mining in Students' Scores Analysis, by mining the data of students' scores, he found the hidden related regulation among the data.
Data collection and reduction Choosing sample.
Due to differences in content, assessment criteria of examination among those provinces, Beijing local students' scores data has been taken as sample in order to maintain objective comparison of the data, There are 64 validate samples after data reduction. (3)Collecting score data of CET4 and CET6:Score data of CET4 and CET6 are collected from academic affair management system.
Data reduction. 1. sex(1, male; 0, female) 2. from(1, Beijing; 2, other provinces) 3.
As a generalized data mining platform, Clementine features in various algorithm which can handle large quantity of data mining tasks including data classification, data regression, clustering, contingency analysis, anomaly detection and time series etc.

Data mining developed rapidly to meet this requirement.
Data mining is to extract knowledge and rules that are implicit, unknown and potential valued in decision-making from large database or data warehouse.
In the algorithm efficiency, through data compression the data that is mined can be scanned into memory once, avoiding duplication of disk I/O operations.
Conf.Very Large Data Bases(VLDB'06),pages 134-145, Bombay, India, Sep.2006
Data Engineering,Orlando,FL, Feb,2007,412-421.

To optimize the reduction technology of SSI and its removal ability for nitrate from wastewater, the influence of reduction temperature of SSI on nitrate removal was investigated.
But the higher specific area was also impacted by deoxidizer, reduction temperature and reduction time, etc.
When the temperature was T1, the reduction temperature was too low to accelerate nucleating of metal iron with the iron oxides reduction.
lnr=ln(-dC/dt)=lnkobs+nlnC (5) According to the kinetic experiment datum shown in Fig. 1, reaction rate equations of nitrate removal by SSI reduced under different temperature could be calculated and illustrated in Table 1.
SSI reduction could not be optimized merely on the basement of its removal ability of nitrate, other factors should be taken into account, such as reduction atmosphere, temperature, reduction time, etc.

Changchun, 130051, China 3Aviation University of Air Force, Changchun, 130022, China aliuxiaolun_jldx@163.com, b450268973@qq.com Keywords: bush roller chains, meshing impact, split roller, noise reduction Abstract.
By analysis of testing data, noise level of duplex sleeve chains with split rollers compared with that of the other duplex bush roller chains was reduced by the average 3 ~ 8dB, and low 10 ~ 13dB than that of 16A simplex sleeve roller chains.
The chains made chain drive significantly improve in the working environment, with steady transmission, strong bearing, low noise, and a significant noise reduction was achieved.
It had been concluded that contact process of sprocket tooth and non-metallic elastic material roller was noise reduction process [7,8].
Reduction of Noise and Vibration in Roller Chain Drives.

Laterite Steel Sample Measurement Reduction Initial Thickness (To) Initial Length (Lo) as cast 6 200 30% 8.6 139.54 40% 10 120 50% 12 100 60% 15 80 Result and Discussion According to the test result data, increment of hardness is directly proportional to the number of reduction level.
Initial hardness before rolling process 190.93 BHN, within 30% of reduction was resulting 247.63 BHN, 40% of reduction was resulting 248.33 BHN, 50% reduction was resulting 280.03 BHN, greater number of reduction means more harder material.
However, it decreased at 60% of reduction.
Identifying and fracture morphology of the sample as cast and with variations A0 size reduction; A1; A3; A4 with SEM and EDS instruments capable of analyzing the quantity of data elements that are formed in certain areas Fig. 7.
Based on the discussion obtained optimum reduction in the 50% reduction that is in the sample A3.

Modeling of test stand of feed drive system for CNC machine tool by FEM The test stand was composed of ball screw( ball bearing spindle, ball screw nut, fixed bearing, floating bearing) made by Company Boschrexroth according to DIN 69051, Teil 1, shaft coupling and roll rail guide made by company KTR, three-phase current servomotor 1FT made by company Siemens, which has a group of planet gears with ratio 10, showed as following figure. 1, and the technical data is shown by table.1 as following: This construction of test stand has the advantage that the moment of the servo motor can be transferred thought coupling direct into the screw .
Thus, structure preserving model reduction is considered.
The reduction’s effectiveness and reliability depends on the size of.
The comparison of model reduction methods in FEM simulation The model reduction methods, which include Reduced Method, Subspace Method, Block Lanczos Method, etc, are often applied in FEM simulation.
Those model reduction methods are applied for the transmission system for CNC machine as fig.1.

However, the calculation workload is too large to process data for large area.
Discrete liner transformation of potential field data [J].
Geophysics, 1989, 54(4): 497-507. ] advanced this method, but data of large area is always difficult to be solved.
The data were gridded and then upward continued 25 meters.
The resulting data and error estimates were inverted with standard inversion parameters.

Stiffness reduction of woven CFRP and CFRTP spring under ultra high cyclic fatigue for vibration conveyor Takahiko Yoshi 1, Kazuya Okubo 2, and Toru Fujii3 1-3 1-3, Tatara-miyakodani, Kyotanabe, Kyoto, Japan, 1 dtj0381@mail4.doshisha.ac.jp, 2 kokubo@mail.doshisha.ac.jp, 3 tfujii@mail.doshisha.ac.jp Key words: CFRP, CFRTP, ultra high cyclic fatigue, high humidity, stiffness reduction Abstract.
However few studies investigated the fatigue behavior of CFRP under ultra high cyclic fatigue loading at high humidity condition, while same data was shown by researchers [5].
Result and Discussion Stiffness reduction of CFRP spring under ultra high cyclic fatigue Fig. 3 shows the reduction rate of frequency as a function of number of loading cycles in the CFRP spring.
Stiffness reduction of CFRTP spring without loading To prevent the stiffness reduction accompanying with such damages which might be induced by the hydrolysis in epoxy shown in Fig. 5(a) under high humidity condition, PET film was utilized as the material of matrix for the CFRTP spring plate.
Prevention of stiffness reduction of plate spring Fig. 7 shows the reduction rate of frequency as a function of number of loading cycles in CFRTP spring.