Evaluation of new spring peanut varieties in fujian province by grey relational grade analysis 應(yīng)用灰色關(guān)聯(lián)分析法評價(jià)福建省春花生新品種
Multi - factorial evaluation of new winter wheat varieties with the grey relational grade analysis method 應(yīng)用灰色關(guān)聯(lián)度對冬小麥區(qū)試參試品種的評價(jià)
This paper discusses mainly the principal of grey theory and the method of relational grade analyses , grey clustering , grey prediction and grey modeling 摘要簡要介紹了灰色理論的基本原理及灰關(guān)聯(lián)分析、灰色聚類、灰色預(yù)測、灰色建模四種基本方法。
This paper discusses the design principles of dimensional modeling technology and applies them in data warehouse modeling process of student grade analysis system 本文重點(diǎn)探討了維度建模技術(shù)的設(shè)計(jì)原則,并將其應(yīng)用于學(xué)生成績分析系統(tǒng)的數(shù)據(jù)倉庫建模過程。
A system is developed which runs experimentally to anticipated effect . at last , a summarization is made and other data mining methods ’ future application into grade analysis is prospected 最后,對本文所做的工作進(jìn)行總結(jié),并對其他挖掘方法在成績分析中的應(yīng)用進(jìn)行了展望。
Especially , the module of students ’ grade analysis only does such simple things as statistics analysis or data sorting . as a result , a great deal of useful information hidden in mass data can ’ t be utilized efficiently 尤其是其中的學(xué)生成績分析模塊,往往只有簡單的一些功能,而隱藏在海量數(shù)據(jù)中的大量有用信息不能得到有效地利用。
Utilising dissolved gases analysis , a new insulation fault diagnosis method for power transformers is proposed . this method is based on the group grey relational grade analysis method . first , according to the fault type and grey reference sequence structure , some typical fault samples are divided into several sets of grey reference sequences . these sets are structured as one grey reference sequence group . secondly , according to a new calculation method of the grey relational coefficient , the individual relational coefficient and grade are computed . then according to the given calculation method for the group grey relation grade , the group grey relational grade is computed and the group grey relational grade matrix is structured . finally , according to the relational sequence , the insulation fault is identified for power transformers . the results of a large quantity of instant analyses show that the proposed method has higher diagnosis accuracy and reliability than the three - ratio method and the traditional grey relational method . it has good classified diagnosis ability and reliability 基于變壓器油中溶解氣體分析,提出了一種基于群灰色關(guān)聯(lián)度分析的變壓器絕緣故障診斷新方法.首先根據(jù)故障類型與灰色參考序列構(gòu)造,選擇變壓器典型故障樣本構(gòu)造多組參考序列,這些參考序列組構(gòu)成一個(gè)灰色參考序列群.其次根據(jù)給出的新的關(guān)聯(lián)系數(shù)計(jì)算方法,計(jì)算個(gè)體關(guān)聯(lián)系數(shù)和關(guān)聯(lián)度.然后根據(jù)給出的群灰色關(guān)聯(lián)度計(jì)算方法,計(jì)算群灰色關(guān)聯(lián)度和構(gòu)造群灰色關(guān)聯(lián)度矩陣.最后根據(jù)關(guān)聯(lián)序識別變壓器絕緣故障診斷.通過大量變壓器絕緣故障診斷實(shí)例分析,所提方法診斷準(zhǔn)確性與可靠性優(yōu)于三比值法和傳統(tǒng)的灰色關(guān)聯(lián)分析方法,具有較好的分類診斷能力和可靠性
In this paper , i have established a appraisement index system after synthetically consideration affecting factor of trolleybus and bus in managing quality , determined right number of each index by grade analysis law , determined appraisement grade of each index by investigating to queue up , determined appraisement matrix by expert inquiry , calculated subordinating level which beijing ' s managing quality of trolleybus and bus in managing quality to each appraisement grade by " m ( , ) " model algorithm in vague mathematics . according to identification principle , i have reached conclusion 本論文在綜合考慮公共電汽車運(yùn)營質(zhì)量影響因素的前提下,確定了公共電汽車運(yùn)營質(zhì)量評價(jià)指標(biāo)體系,采用層次分析法確定指標(biāo)權(quán)數(shù),通過調(diào)查排隊(duì)來確定各指標(biāo)的評價(jià)等級,通過專家調(diào)查法確定評價(jià)矩陣,利用模糊數(shù)學(xué)中m ( ? ? )模型算法計(jì)算一個(gè)城市公共電汽車運(yùn)營質(zhì)量對“優(yōu)、良、中、差”的隸屬度,根據(jù)識別原則,得出結(jié)論。
Multi - strategy means as follows : utilizing classifying data mining methods based on decision tree to analyze the data in grade database . a grade decision tree is generated to show directly a position of grade according to different computing methods and to support estimate . at the same time , utilizing classification method based on summing - up principles to do such things as grade query analysis and prediction and contrast analysis to realise automatic generation of grade analysis report , test paper ’ s quality assessment report and quality analysis table which plays an active role in improving teaching and test paper ’ s quality 這里多策略主要是指:采用基于決策樹的分類挖掘方法,對學(xué)生成績庫中數(shù)據(jù)進(jìn)行分析,生成學(xué)生成績決策樹,能直觀顯示出某一成績在不同等級計(jì)算方式中所處的位置,為教學(xué)部門提供評價(jià)信息;同時(shí)采用基于總結(jié)規(guī)則的統(tǒng)計(jì)分析方法,完成不同情況下的成績查詢、預(yù)測及對比分析,實(shí)現(xiàn)學(xué)生成績分析報(bào)告、試卷質(zhì)量評價(jià)報(bào)告及質(zhì)量分析表的自動(dòng)生成。