言語処理100本ノック 2020「33. 「AのB」」
問題文
問題の概要
「30. 形態素解析結果の読み込み」で作成したデータ構造から、データを取り出します。抽出条件は「名詞」+「の」+「名詞」です。
def parse_mecab(block): res = [] for line in block.split('\n'): if line == '': return res (surface, attr) = line.split('\t') attr = attr.split(',') lineDict = { 'surface': surface, 'base': attr[6], 'pos': attr[0], 'pos1': attr[1] } res.append(lineDict) def extract_a_no_b(block): res = [] for i in range(1, len(block) - 1): if block[i - 1]['pos'] == '名詞' and block[i]['base'] == 'の' and block[i + 1]['pos'] == '名詞': res.append(block[i - 1]['surface'] + block[i]['surface'] + block[i + 1]['surface']) return res filename = 'ch04/neko.txt.mecab' with open(filename, mode='rt', encoding='utf-8') as f: blocks = f.read().split('EOS\n') blocks = list(filter(lambda x: x != '', blocks)) blocks = [parse_mecab(block) for block in blocks] ans = [extract_a_no_b(block) for block in blocks] print(ans)