domain-specific knowledge 中文意思是什麼
domain-specific knowledge
解釋
特定領域知識,領域知識-
The ontology is domain specific and includes a list of keywords organized by degree of importance to the categories of the ontology, and by means of semantic knowledge. the ontology can improve the effects of document similarity measure and feedback of information retrieval systems
該本體面向特定領域,將關鍵詞以不同權值對應于各分類類目,通過其語義知識來改進文本相似性測度以及信息檢索系統的效果。 -
A method that combines category - based and keyword - based concepts for a better information retrieval system is introduced. to improve document clustering, a document similarity measure based on cosine vector and keywords frequency in documents is proposed, but also with an input ontology. the ontology is domain specific and includes a list of keywords organized by degree of importance to the categories of the ontology, and by means of semantic knowledge, the ontology can improve the effects of document similarity measure and feedback of information retrieval systems. two approaches to evaluating the performance of this similarity measure and the comparison with standard cosine vector similarity measure are also described
介紹了一種綜合各層級分類類目和對應關鍵詞來構造概念體系並用於改進信息檢索系統效果的方法.為了改進文本聚類的效果,提出了將領域知識本體和文本關鍵詞詞頻相結合的基於餘弦向量的文本相似性測度方法.該本體面向特定領域,將關鍵詞以不同權值對應于各分類類目,通過其語義知識來改進文本相似性測度以及信息檢索系統的效果.進一步給出了對基於本體的相似性測度方法進行效果評價的2種策略以及該方法與經典餘弦向量測度方法的比較結果 -
Domain knowledge in biology was used to distinguish effective ncrna features that can be relied on for data mining on this specific purpose
論文運用生物學知識提取了相關特徵並用於主成分分析和神經網路的訓練中。
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