CJKV Information Processing, 2nd Edition

Ideograph Dictionary Indexes

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Kanji readings of dierent frequencyTable 11-1.

Kanji Frequent reading Infrequent reading



 ken  tsurugi



 chū  naka



 sei,  shō  nama



 ken  inu

Many rare ideographs do not have very well-known readings. But, even if you happen to

know a reading for a particular ideograph, that doesn’t necessarily mean that all reading

indexes will include an entry for it. is is when other indexes come into play, such as

those that denote structure.

Some character set standards order ideographs according to reading. Level 1 of GB

2312-80 and JIS X 0208:1997 are good examples, as is KS X 1001:2004. Interestingly, and

as pointed out in Chapter 3, KS X 1001:2004 includes multiple instances of over 200 ideo-

graphs because they have multiple readings.

Radical Index

Ideographs are most frequently categorized by radical. As discussed in Chapters 2 and 5,

indexing radicals and radical-like components are the basic building blocks of ideographs;

*

they thus serve as a way to organize and categorize ideographs. Some character set stan-

dards order ideographs according to their indexing radical, such as Level 2 of GB 2312-80

and JIS X 0208:1997, JIS X 0212-1990, JIS X 0213:2004, and each of Unicode’s CJK Unied

Ideograph blocks.

e most commonly used set of indexing radicals today is the classic set of 214. is set of

indexing radicals, along ...