منابع مشابه
Sparse Component Analysis: a New Tool for Data Mining
In many practical problems for data mining the data X under consideration (given as (m × N)-matrix) is of the form X = AS, where the matrices A and S with dimensions m×n and n×N respectively (often called mixing matrix or dictionary and source matrix) are unknown (m ≤ n < N). We formulate conditions (SCA-conditions) under which we can recover A and S uniquely (up to scaling and permutation), su...
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متن کاملInvestigation of the Model of Microscopic Contact Parameters for Grinding M200 Using Elastic Abrasive Tool
In this study; utilizing the elastic matrix ball has higher processing efficiency and better superficial quality than traditionalgrinding. The diversity of elastic abrasive tool characteristics contact with bend surface results in irregular wear abrasion，and abrasive tool machining status gets complicated. There is no theoretical interpretation of parameters affecting the grinding accuracy. Bec...
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ژورنال
عنوان ژورنال: Russian Engineering Research
سال: 2009
ISSN: 1068-798X,1934-8088
DOI: 10.3103/s1068798x09030228