Subject extraction from a text is very important for natural language processing.
从文本中提取主题串是自然语言处理的重要基础之一。
Chinese word segmentation is always the first step of subject extraction. The quality of word segmentation is effective to the quality of text subject extraction.
而主题提取是以中文分词作为第一步，分词质量直接影响到文献主题提取的质量。
Finally, an experimental was carried out which compared the human subject extraction results to our system result, and the recall and the precision showed that our model do a good job.
最终，通过与人工主题词抽取的实验结果相比较，该主题提取模型在查全率和查准率上都取得了较好的效果。
The extraction of effective feature vectors and pattern recognition are the key technique in the subject of mechanical condition monitoring and diagnosis.
有效特征向量的提取和状态识别是设备状态监测与故障诊断领域中的关键技术。
The segmentations of gait silhouettes have very important influence on feature extraction and subject classification.
步态轮廓的有效分割对于特征提取、目标分类等后期处理有非常重要的影响。
It constructs document feature vector of subject and Keyword separately by using a new method of document feature extraction.
使用新的文档特征抽取方法构造了文档的主题和关键字特征向量。
This paper takes design and realization for feature extraction based vehicle tracking method as subject to do further research.
本文就基于特征提取的车辆跟踪方法的设计和实现进行了深入的研究。
Remote sensing images information extraction is a major content in the remote sensing images research field, and it is also the subject of the study in the pattern classification.
遥感信息提取是遥感图像处理研究领域中的一项主要内容，也是模式分类范畴研究的课题。
Google "keypoint extraction" and "keypoint matching" and you'll find quite a few academic papers on the subject.
谷歌“关键点提取”和“的关键点匹配”，你会发现关于这个问题相当多篇学术论文。
In one embodiment, the wood tar is subject to a separation process prior to the supercritical extraction to remove a substantial part of the unwanted components.
在一个实施方案中，在超临界提取之前使木焦油经历分离过程以去除绝大部分的所不希望的组分。
This subject use cochineal as raw material, red pigment composition of extraction and purification systems - depth study.
本论文较系统研究了以胭脂虫为原料制备胭脂虫红色素的工艺过程。
Extraction of invariant moments used for pattern recognition is a subject in optics to be further studied.
提取用于模式识别的不变矩特征量在光学上始终是一个有待进一步研究的问题。
Extraction of invariant moments used for pattern recognition is a subject in optics to be further studied.
提取用于模式识别的不变矩特征量在光学上始终是一个有待进一步研究的问题。
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