Sparkã®ç´ æ´ãããè³æãå ¬éããã¾ããããããè¦ãã°ããã«MapReduceã§PMIãè¨ç®ã§ããããã«ãªãã¾ãã Apache Spark ãã¥ã¼ããªã¢ã« from K Yamaguchi www.slideshare.net
4. ç´ æ´ãªå®è£ 3 frequency = defaultdict(int) for line in opened_file: for word in some_splitter(line): frequency[word] += 1 for word in frequency: some_output(word, frequency[word]) ãã¡ã¤ã« frequency ã¡ã¢ãªã« è¾æ¸/ããã·ã¥/ é£æ³é å/Mapã æã¤é »åº¦(Pythonic) frequency = collections.Counter( word for line in opened_file for word in some_splitter(line)) for word, count in frequency.iteritems(): some_output(word, count)
ã©ã³ãã³ã°
ã©ã³ãã³ã°
ã©ã³ãã³ã°
ãªãªã¼ã¹ãé害æ å ±ãªã©ã®ãµã¼ãã¹ã®ãç¥ãã
ææ°ã®äººæ°ã¨ã³ããªã¼ã®é ä¿¡
å¦çãå®è¡ä¸ã§ã
j次ã®ããã¯ãã¼ã¯
kåã®ããã¯ãã¼ã¯
lãã¨ã§èªã
eã³ã¡ã³ãä¸è¦§ãéã
oãã¼ã¸ãéã
{{#tags}}- {{label}}
{{/tags}}