本文選題：時(shí)間關(guān)鍵詞 + 時(shí)間關(guān)鍵詞識(shí)別　； 參考：《計(jì)算機(jī)應(yīng)用研究》2017年04期

【摘要】：時(shí)態(tài)信息廣泛應(yīng)用在自然語(yǔ)言處理、信息檢索等領(lǐng)域,而時(shí)間關(guān)鍵詞識(shí)別更是時(shí)態(tài)信息應(yīng)用的關(guān)鍵,其直接影響到時(shí)態(tài)信息的使用。時(shí)間信息在文本或句中形式多樣性、位置隨意性以及邊界不確定性等特點(diǎn)成為時(shí)間關(guān)鍵詞識(shí)別任務(wù)中的難點(diǎn)。為了解決中文時(shí)間關(guān)鍵詞的識(shí)別問(wèn)題,通過(guò)分析文本語(yǔ)句結(jié)構(gòu)并結(jié)合語(yǔ)法結(jié)構(gòu)樹(shù)提出短語(yǔ)劃分方法,將文本轉(zhuǎn)換成短語(yǔ)集從而確定短語(yǔ)邊界;在此基礎(chǔ)上提出短語(yǔ)向量化表示法,以此構(gòu)建向量空間;最后,引入譜聚類的聚類思想,將識(shí)別問(wèn)題轉(zhuǎn)換為聚類問(wèn)題。實(shí)驗(yàn)證明,運(yùn)用該方法進(jìn)行中文時(shí)態(tài)關(guān)鍵詞識(shí)別具有較好的效果。
[Abstract]:Temporal information is widely used in the fields of Natural Language Processing, information retrieval and other fields, and time keyword recognition is the key to the application of temporal information. It directly affects the use of temporal information. The characteristics of time information in text or sentence form diversity, location randomness and boundary inaccuracy become the task of time keyword recognition. In order to solve the recognition problem of Chinese time key words, by analyzing the structure of text statement and combining the grammar structure tree with the phrase division method, the text is converted into phrase set to determine the phrase boundary. On this basis, the phrase direction quantization representation is proposed to construct the vector space. Finally, the clustering idea of spectral clustering is introduced. Recognition problem is transformed into clustering problem. Experiments show that this method is effective in Chinese tense keyword recognition.

【作者單位】： 廣東工業(yè)大學(xué)計(jì)算機(jī)學(xué)院;
【基金】：廣東省自然科學(xué)基金資助項(xiàng)目(S2011040004281,S2013010014457)
【分類號(hào)】：TP391.1
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本文編號(hào)：1826134