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With the flooding of pornographic information on the Internet, how to keep people away from that offensive information is becoming one of the most important research areas in network information security. Some applications which can block or filter such information are used. Approaches in those systems can be roughly classified into two kinds:metadata based and content based. With the development of distributed technologies, content based filtering technologies will play a more and more important role in filtering systems. Keyword matching is a content based method used widely in harmful text filtering. Experiments to evaluate the recall and precision of the method showed that the precision of the method is not satisfactory, though the recall of the method is rather high. According to the results, a new pornographic text filtering model based on reconfirming is put forward. Experiments showed that the model is practical, has less loss of recall than the single keyword matching method, and has higher precision. 相似文献
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With the flooding of pornographic information on the Internet, how to keep people away from that offensive information is becoming one of the most important research areas in network information security. Some applications which can block or filter such information are used. Approaches in those systems can be roughly classified into two kinds: metadata based and content based. With the development of distributed technologies, content based filtering technologies will play a more and more important role in filtering systems. Keyword matching is a content based method used widely in harmful text filtering. Experiments to evaluate the recall and precision of the method showed that the precision of the method is not satisfactory, though the recall of the method is rather high. According to the results, a new pornographic text filtering model based on reconfirming is put forward. Experiments showed that the model is practical, has less loss of recall than the single keyword matching method, and has higher pr 相似文献
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马颖华 《铜陵职业技术学院学报》2013,(1):6-8
文章通过对铜陵市2012工业经济相关数据进行分析,并结合铜陵地域经济的特点,指出铜陵经济现状中结构不合理,资源依赖较强和大型企业总量偏少等不足,并对实现铜陵经济可持续发展进行了探讨。 相似文献
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文章以沪深两市A股64家交通运输行业上市公司为研究对象,提出了3个假设,构造了3个指标,选取了公司2009-2011年的截面数据,通过建立的多元线性回归模型实证分析了微观融资环境对资本结构的影响。实证分析得到：在95%的置信水平下,两个方面有明显的正相关关系———公司规模与资本结构,另外在公司综合财务能力方面却是负向影响。并据此提出相关政策建议。 相似文献
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