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実践 機械学習システム
book

実践 機械学習システム

by Willi Richert, Luis Pedro Coelho, 斎藤 康毅
October 2014
Intermediate to advanced
288 pages
6h 27m
Japanese
O'Reilly Japan, Inc.
Content preview from 実践 機械学習システム
6.6
 単語の種類を考慮する
137
登場する場合でも、その平均をとることにします。たとえば、上の例のfantasizeの場合、
PosScore
0.1875
NegScore
0.0625になります。
次に示す
load_sent_word_net()
という関数は、ここで説明したこと全てを行い、結果として
ディクショナリを返します。このディクショナリに使われるキーは「品詞の種類/ 単語」の形式をとりま
す。たとえば、「n/implant」のようになります。また、ディクショナリがとる値は、ポジティブスコアと
ネガティブスコアです。
import csv, collections
def load_sent_word_net():
sent_scores = collections.defaultdict(list)
with open(os.path.join(DATA_DIR,
SentiW
ordNet_3.0.0_20130122.txt"), "r") as csvfile:
reader = csv.reader(csvfile, delimiter='\t', quotechar='"')
for line in reader:
if line[0].startswith("#"):
continue
if len(line)==1:
continue
POS,ID,PosScore,NegScore,SynsetTerms,Gloss = line
if len(POS)==0 or ...
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Publisher Resources

ISBN: 9784873116983Other