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- freguency itemset 频集
- The problem of fuzzy constraint in frequent itemset mining is studied. 摘要研究频繁项集挖掘中的模糊约束问题。
- Keywords:Converter system, Variable freguency adjusting speed, Vector control Ma... 关键词:转炉，变频调速，矢量控制，主从切换
- Setting this value to 0 specifies that there is no limit to the size of the itemset. 将该值设置为0将指定对项集的大小没有限制。
- Method: 38 patients with cataracts were emulsified by using non cut pupillary dilation cystotome or diathermic high freguency capsulorrhexis. 方法:应用非切开瞳孔牵拉扩张法及部分下方瞳孔缘括约肌剪断法原位超声乳化碎核等技术对38例小瞳孔白内障行超声乳化。
- Grahne G,Zhu Jian-fei.Fast algorithms for frequent itemset mining using FP-Trees[J].IEEE Transactions on Knowledge and Data Engineering,2005,10:1347. 胥桂仙;高旭;于绍娜;关联规则算法在中文文本挖掘中的应用研究[J].;中央民族大学学报;2004;13(4):332-338
- Methods Thirteen patients with TVL underwent echocardiographic examinations including 2-dimensional ultrasonography,freguency spectrum and color Doppler flow imaging. 方法13例三尖瓣病变患者均经超声心动图包括二维超声、频谱多普勒及彩色多普勒超声检查。
- For example, if every itemset contains a specific state of an attribute, a rule that predicts state is trivial, even though the probability is very high. 例如,如果每个项集都包含属性的某个特定状态,那么,即使概率非常高,预测状态的规则也并不重要。
- Setting this value to a whole number greater than 1 specifies the minimum number of cases as the absolute number of cases that must contain the itemset. 将该值设置为大于1的整数将指定最小事例数作为必须包含项集的事例的绝对数。
- Further, based upon the desirable properties of closed itemset lattices, a partition-based algorithm is developed, which proves to be highly efficient without information loss. 提出了一个基于划分的高效算法，在信息无损的前提下提高算法的效率。
- So it is assumed that the positive degree of word's own semanteme restricts both positive and negative usage, and the lower positive word is used in negative structure with the higher freguency. 并假设；词语自身语义的肯定程度高低制约着其肯定和否定用法，肯定程度越低的词用于否定结构的几率越大。
- Unlike Algorithm Apriori our algorithm constructlarge unit submatrix in whole matrix (under certain condition construct maximum unitsubmatrix) and avoid complex process calculating candidate itemset. 这些算法不同于Apriori算法，它们从关注矩阵M满足某种性质的行出发，迭代构造较大全1子阵（在一定条件下能得出最大全1子阵），避开了求候选项目集的复杂过程，使算法成为有效算法。
- orthogonal freguency division multiplexing 正交频分复用
- orthogond freguency division multiplexing (OFDM) 正交频分复用
- Orthogond Freguency Division Multiplexing 正交频分复用
- fraction N PLL freguency synthesizer 小数分频锁相环
- Radio Freguency Identification (RFID) 射频识别
- variable freguency drive technology 变频调速
- Study of freguency Spectrum of baseband digital Signal 数字基带信号频谱特性的研究
- Processing of Low Frequency Doppler Beat Freguency Signal 低频多普勒拍频信号处理
