7.8.18. TokenUnigram#

7.8.18.1. Summary#

TokenUnigram is similar to TokenBigram. The differences between them is token unit.

7.8.18.2. Syntax#

TokenUnigram hasn’t parameter:

TokenUnigram

7.8.18.3. Usage#

If normalizer is used, TokenUnigram uses white-space-separate like tokenize method for ASCII characters. TokenUnigram uses unigram tokenize method for non-ASCII characters.

If TokenUnigram tokenize non-ASCII charactors, TokenUnigram uses 1 character per token as below example.

Execution example:

tokenize TokenUnigram "日本語の勉強" NormalizerAuto
# [
#   [
#     0,
#     1546584495.218799,
#     0.0002140998840332031
#   ],
#   [
#     {
#       "value": "日",
#       "position": 0,
#       "force_prefix": false,
#       "force_prefix_search": false
#     },
#     {
#       "value": "本",
#       "position": 1,
#       "force_prefix": false,
#       "force_prefix_search": false
#     },
#     {
#       "value": "語",
#       "position": 2,
#       "force_prefix": false,
#       "force_prefix_search": false
#     },
#     {
#       "value": "の",
#       "position": 3,
#       "force_prefix": false,
#       "force_prefix_search": false
#     },
#     {
#       "value": "勉",
#       "position": 4,
#       "force_prefix": false,
#       "force_prefix_search": false
#     },
#     {
#       "value": "強",
#       "position": 5,
#       "force_prefix": false,
#       "force_prefix_search": false
#     }
#   ]
# ]