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m*n matrix m*n=1000 f(A)=25 https://www.cs.princeton.edu/courses/archive/spring12/cos598C/svdchapter.pdf finding the best k -dimensional subspace with 阅读全文
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https://hadoop.apache.org/docs/r1.2.1/hdfs_design.html Introduction The Hadoop Distributed File System (HDFS) is a distributed file system designed to 阅读全文
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布隆过滤器 http://pages.cs.wisc.edu/~cao/papers/summary-cache/node8.html A Bloom filter is a method for representing a set A of n elements (also called key 阅读全文
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https://chenli.ics.uci.edu/files/icde2017-AsterixDB-Spatial-Comparison.pdf A Comparative Study of Log-Structured Merge-Tree-Based Spatial Indexes for 阅读全文
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【粗暴的HIVE-SQL】select xyz from abc where ty='sdk' and ret_code=0 and data_source_type=1 and dt between '20171013' and '20171016' limit 1200000;一个手机几天就在同 阅读全文
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https://research.google.com/archive/spanner.html Spanner is Google’s scalable, multi-version, globally- distributed, and synchronously-replicated data 阅读全文
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http://docs.oracle.com/javase/tutorial/java/javaOO/nested.html Why Use Nested Classes? Compelling reasons for using nested classes include the followi 阅读全文