1. Ameba
2010 4 23 1

2. •
•
•
2010 4 23 2

3. 2010 4 23 3

4. 2010 4 23 4

5. 2010 4 23 5

6. ✓
-
-
✓
✓
2010 4 23 6

7. suggest
1.
2.
3.
2010 4 23 7

8. JavaScript
suggest.js jquery suggest
-
-
2010 4 23 8

9. - exact match
- →
- predictive match
- → 03 ...
- common prefix search
- →
...
※Key Value Store exact match
2010 4 23 9

10. 2010 4 23 10

11. tea
2010 4 23 11

12. te
tea,ted,ten
2010 4 23 12

13. inn
in,inn
2010 4 23 13

14. Trie
• Double Array Trie Tree
- Darts
http://chasen.org/~taku/software/darts/
• LOUDS
- tx
http://code.google.com/p/tx-trie/
2010 4 23 14

15. [J Aoe 1989 ] An Efficient Digital Search Algorithm by Using a Double-Array Structure
(BASE/CHECK)
Trie
2010 4 23 15

16. •
•
2010 4 23 16

17. •
•
•
BC[x].BASE +
CODE[c] = y BC[y].CHECK = x
• BASE=(
2010 4 23 17

18. •
•
•
BC[x].BASE +
CODE[c] = y BC[y].CHECK = x
• BASE=(
2010 4 23 18

19. http://chasen.org/~taku/software/darts/
Double Aray Trie
LGPL BSD
MeCab ChaSen
2010 4 23 19

20. [O’Neil Delpratt 2006 ] Engineering the LOUDS Succinct Tree Representation
LOUDS→Level-Order Unary Degree Sequence
- 96bit
- LOUDS bit
※http://www-tsujii.is.s.u-tokyo.ac.jp/~hillbig/papers/kvs_okanohara.pptx
2010 4 23 20

21. http://code.google.com/p/tx-trie/
LOUDS
BSD
Google
tx rx
2010 4 23 21

22. Darts linux.words
ALGOL
ANSI
ARCO
ARPA
ARPANET
ASCII
※ byte
2010 4 23 22

23. •
Trie
• Trie LOUDS
tx
•
2010 4 23 23

24. •
•
2010 4 23 24

25. •
-
- Jaro-Winkler
• x y /(|x|*|y|)
• x y /(Σxi+Σyi-x*y)
2010 4 23 25

26. •
-
- Jaro-Winkler
• x y /(|x|*|y|)
• x y /(Σxi+Σyi-x*y)
2010 4 23 26

27. • Oluolu (mixi)
http://alpha.mixi.co.jp/blog/?p=1425
• Lucene
http://wiki.apache.org/lucene-java/SpellChecker
2010 4 23 27

28. org.unigram.oluolu.rqe.RelatedQueryExtractionReducer.java
2010 4 23 28

29. org.apache.lucene.spell.SpellCheker.java
2010 4 23 29

30. 1.
- Hadoop
2.
- PPJoin+
3.
※ 0.8
1:10
2010 4 23 30

31. [Chuan Xiao+ 2008]Efficient Similarity Joins for Near Duplicate Detection
Similarity Join
※
( PPJoin+ just-do-neet )
http://ameblo.jp/just-do-neet/entry-10317825348.html
2010 4 23 31

32. 2010 4 23 32

33. 2010 4 23 33

34. •
• PPJoin+
•
2010 4 23 34

35. ✓
-
-
✓
✓
2010 4 23 35

36. Trie
- Trie
- Double Array Trie
- LOUDS ... tx rx
2010 4 23 36

37. http://nd-ilab.jp/suggest/sample/sada/index.html
2010 4 23 37

38. http://nd-ilab.jp/suggest/sample/talent/index.html
2010 4 23 38

39. http://nd-ilab.jp/suggest/sample/search/index.html
Ameba
2010 4 23 39

40. http://nd-ilab.jp/suggest/sample/search/index.html
Ameba
Ameba IME JavaScript Trie
Common Prefix Search
2010 4 23 40

41. ✓
-
-
✓
✓
2010 4 23 41

42. -
-
or API
2010 4 23 42

43. 2010 4 23 43