概念相似度是计算机自然语言处理研究的重要问题之一。
The concept similarity is one of the most important problems in the machine language research.
句子相似度计算在中文自然语言处理领域有着非常广泛的应用背景。
Sentence similarity computing has been widely used in the field of natural language processing.
目前的数学理论和计算实践显示，自然语言处理所需要的时间随输入信息的复杂度呈指数增长。
The current mathematic theory and calculation practices indicate that the time needed to process language information increases with the complexity of the input information exponentially.
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