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我有大量的產品說明數據，並需要將產品名稱和意圖從描述中分離出來，因爲我在用POS標籤標記文本後發現分隔NNP標籤對進一步清潔有一定幫助。如何從列表中篩選特定的POS標籤以分開列表？
我有以下類似的數據，我只想過濾NNP標籤，並希望它們在各自的列表中過濾，但無法這樣做。
data = [[('User', 'NNP'),
('is', 'VBZ'),
('not', 'RB'),
('able', 'JJ'),
('to', 'TO'),
('order', 'NN'),
('products', 'NNS'),
('from', 'IN'),
('iShopCatalog', 'NN'),
('Coala', 'NNP'),
('excluding', 'VBG'),
('articles', 'NNS'),
('from', 'IN'),
('VWR', 'NNP')],
[('Arfter', 'NNP'),
('transferring', 'VBG'),
('the', 'DT'),
('articles', 'NNS'),
('from', 'IN'),
('COALA', 'NNP'),
('to', 'TO'),
('SRM', 'VB'),
('the', 'DT'),
('Category', 'NNP'),
('S9901', 'NNP'),
('Dummy', 'NNP'),
('is', 'VBZ'),
('maintained', 'VBN')],
[('Due', 'JJ'),
('to', 'TO'),
('this', 'DT'),
('the', 'DT'),
('user', 'NN'),
('is', 'VBZ'),
('not', 'RB'),
('able', 'JJ'),
('to', 'TO'),
('order', 'NN'),
('the', 'DT'),
('product', 'NN')],
[('All', 'DT'),
('other', 'JJ'),
('users', 'NNS'),
('can', 'MD'),
('order', 'NN'),
('these', 'DT'),
('articles', 'NNS')],
[('She', 'PRP'),
('can', 'MD'),
('order', 'NN'),
('other', 'JJ'),
('products', 'NNS'),
('from', 'IN'),
('a', 'DT'),
('POETcatalog', 'NNP'),
('without', 'IN'),
('any', 'DT'),
('problems', 'NNS')],
[('Furtheremore', 'IN'),
('she', 'PRP'),
('is', 'VBZ'),
('able', 'JJ'),
('to', 'TO'),
('order', 'NN'),
('products', 'NNS'),
('from', 'IN'),
('the', 'DT'),
('Vendor', 'NNP'),
('VWR', 'NNP'),
('through', 'IN'),
('COALA', 'NNP')],
[('But', 'CC'),
('articles', 'NNS'),
('from', 'IN'),
('all', 'DT'),
('other', 'JJ'),
('suppliers', 'NNS'),
('are', 'VBP'),
('not', 'RB'),
('orderable', 'JJ')],
[('I', 'PRP'),
('already', 'RB'),
('spoke', 'VBD'),
('to', 'TO'),
('anic', 'VB'),
('who', 'WP'),
('maintain', 'VBP'),
('the', 'DT'),
('catalog', 'NN'),
('COALA', 'NNP'),
('and', 'CC'),
('they', 'PRP'),
('said', 'VBD'),
('that', 'IN'),
('the', 'DT'),
('reason', 'NN'),
('should', 'MD'),
('be', 'VB'),
('the', 'DT'),
('assignment', 'NN'),
('of', 'IN'),
('the', 'DT'),
('plant', 'NN')],
[('User', 'NNP'),
('is', 'VBZ'),
('a', 'DT'),
('assinged', 'JJ'),
('to', 'TO'),
('Universitaet', 'NNP'),
('Regensburg', 'NNP'),
('in', 'IN'),
('Scout', 'NNP'),
('but', 'CC'),
('in', 'IN'),
('P17', 'NNP'),
('table', 'NN'),
('YESRMCDMUSER01', 'NNP'),
('she', 'PRP'),
('is', 'VBZ'),
('assigned', 'VBN'),
('to', 'TO'),
('company', 'NN'),
('001500', 'CD'),
('Merck', 'NNP'),
('KGaA', 'NNP')],
[('Please', 'NNP'),
('find', 'VB'),
('attached', 'JJ'),
('some', 'DT'),
('screenshots', 'NNS')]]
我寫了下面的代碼：
def prodname(a):
p = []
for i in a:
for j in range(len(i)):
if i[j][1]=='NNP':
p.append(i[j][0])
return p
這是給下面的輸出：
['User',
'Coala',
'VWR',
'Arfter',
'COALA',
'Category',
'S9901',
'Dummy',
'POETcatalog',
'Vendor',
'VWR',
'COALA',
'COALA',
'User',
'Universitaet',
'Regensburg',
'Scout',
'P17',
'YESRMCDMUSER01',
'Merck',
'KGaA',
'Please']
我想獲得的輸出是：
[['User',
'Coala',
'VWR']
['Arfter',
'COALA',
'Category',
'S9901',
'Dummy']
[],
[],
['POETcatalog'],
['Vendor',
'VWR',
'COALA'],
[],
['COALA'],
['User',
'Universitaet',
'Regensburg',
'Scout',
'P17',
'YESRMCDMUSER01',
'Merck',
'KGaA'],
['Please']]
也試圖使用[[] for i in range(len(data)]追加到他們各自的名單，但不能這樣做。
謝謝了。這樣可行。 – sharathchandramandadi