Document clustering needs calculating the similarity between documents.Traditional similarity calculation method uses words modeling as term frequency vecto
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本刊讯(特约通讯员葛德光)日前,笔者从安徽省砀山县农委了解到,今年该县1.13万hm2早熟梨黄冠、黄金、翠玉、圆黄、大果水晶等品种全部实施套袋,于5月底套袋全部结束。近年来,
芥子油苷也称硫代葡萄糖苷(Glucosinolates)，是一类由氨基酸合成的巯基糖苷类次生代谢产物，广泛存在于白花菜目(Capparales)特别是十字花科(Cruciferae)包括模式植物拟南芥
做菜做汤时,经常会用到香菜。香菜每次用不多,又经常用,且不容易保存。现推荐一种储存香菜的方法。将香菜择好,洗净,切碎,晾干,然后装
When cooking soup, often use corian
Scatterometer observations can provide accurate and spatially wind information near the sea surface which have proven significant for the forecasting of dyn
Salt,saline-alkali and drought are major environmental factors limiting plant growth and productivity.The vacuolar H+-translocating inorganic pyrophosphatas
日前，经过为期４个多月的测试、交流、认证工作，深圳市华为技术有限公司拥有自主知识产权的系列路由器、接入服务器等产品入围中国建设银行网络设备选型，获准在建行信息网建设中推
The application layer of Distributed Denial of Service (DDoS) has the characteristics of low rate,legitimate messages.The existing methods are mainly based
耳聪目明是健康的重要标志,而听力良好对养生尤为重要。前不久,日本东京都中老年人健康综合研究院对日本500位有病理缺陷而呆在家里的老人进行了为期3年的追踪调查,结果发现,