grunt> cat /opt/dataset/input.txt keyword1 keyword2 keyword2 keyword4 keyword3 keyword1 keyword4 keyword4 A = LOAD '/opt/dataset/input.txt' using PigStorage('\n') as (line:chararray); B = foreach A generate TOKENIZE((chararray)$0); C = foreach B gene…
1.Create a new java project, then copy examples folder from /home/hadoop/hadoop-1.0.4/src; Create a new folder named src, then Paste to the project to this folder. Error: Could not find or load main class right-click src folder, --> build Path --> U…
--https://github.com/slimandslam/pig-hive-wordcount/blob/master/wordcount.hql DROP TABLE myinput; DROP TABLE wordcount; CREATE TABLE myinput (line STRING); -- Load the text from the local (Linux) filesystem. This should be changed to HDFS -- for any…
1 LSA Introduction LSA(latent semantic analysis)潜在语义分析,也被称为LSI(latent semantic index),是Scott Deerwester, Susan T. Dumais等人在1990年提出来的一种新的索引和检索方法.该方法和传统向量空间模型(vector space model)一样使用向量来表示词(terms)和文档(documents),并通过向量间的关系(如夹角)来判断词及文档间的关系:而不同的是,LSA将词和文档映射…
