Created
October 24, 2013 05:11
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Summarizer
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Summarizer(originalText, maxSummarySize): | |
// 计算原始文本的词频,生成一个数组,比如[(10,'the'), (3,'language'), (8,'code')...] | |
wordFrequences = getWordCounts(originalText) | |
// 过滤掉停用词,数组变成[(3, 'language'), (8, 'code')...] | |
contentWordFrequences = filtStopWords(wordFrequences) | |
// 按照词频进行排序,数组变成['code', 'language'...] | |
contentWordsSortbyFreq = sortByFreqThenDropFreq(contentWordFrequences) | |
// 将文章分成句子 | |
sentences = getSentences(originalText) | |
// 选择关键词首先出现的句子 | |
setSummarySentences = {} | |
foreach word in contentWordsSortbyFreq: | |
firstMatchingSentence = search(sentences, word) | |
setSummarySentences.add(firstMatchingSentence) | |
if setSummarySentences.size() = maxSummarySize: | |
break | |
// 将选中的句子按照出现顺序,组成摘要 | |
summary = "" | |
foreach sentence in sentences: | |
if sentence in setSummarySentences: | |
summary = summary + " " + sentence | |
return summary |
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