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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,bu
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介绍了一种综合各层级分类类目和对应关键词来构造概念体系并用于改进信息检索系统效果的方法.为了改进文本聚类的效果,提出了将领域知识本体和文本关键词词频相结合的基于余弦向量的文本相似性测度方法.该本体面向特定领域,将关键词以不同权值对应于各分类类目,通过其语义知识来改进文本相似性测度以及信息检索系统的效果.进一步给出了对基于本体的相似性测度方法进行效果评价的2种策略以及该方法与经典余弦向量测度方法的比较结果. |
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A method to control the corrosion of high temperature section is provided.
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提出了一种方法来控制和评估高温区的腐蚀。 |
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A method to determine which particular cash debt instrument is most profitable to deliver against a futures contract.
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在期货市场中一种决定哪种特殊的现金贷款工具是最能获利的交割的方法。 |
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A method to evaluate spatial straightness errors adopting particle swarm optimization (PSO) is proposed.
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摘要提出了一种满足最小区域法的空间直线度误差评价的新方法一粒子群算法。 |
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A method to identify the damping parameters of machine joint surface is proposed based on the tested frequency response functions.
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提出一种基于实测传递函数矩阵来识别机械结合面阻尼参数的新方法。 |
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A method where the direction of light passing through a crystal is changed using a high frequency sound wave.
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在那里光的指示过去的一种方法透过一颗晶片被使用高的频率声波改变。 |
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A method, concerning screw mechanism, electronic scale and the way to obtain the fitted curve, to detect the hysteresis of cylindrical helical spring with micro-capacitance measuring technology and to compensate the hysteresis with micro-controller techno
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摘要介绍一种利用微电容测量技术检测圆柱螺旋压缩弹簧迟滞和利用单片机技术对迟滞进行补偿的实验方法，该方法涉及螺旋机构、电子秤和拟合曲线的求法等。 |
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A methodology was put forward for damage location, and damage simulating as well as numerical calculation of modal analysis was carried out on a truss plane bridge by stiffness discount.
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摘要推导了基于测试频率平方变化比的损伤定位方法，利用有限元方法对一管道结构以刚度折减法进行了损伤模拟和模态分析数值计算。 |
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A methodology, called Signal Subspace Correlation (SSC), is introduced.
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这个方法称为「讯号次空间关联法」。 |
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A metric unit of area equal to10 ares.
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十公亩面积的公制单位之一，等于十公亩 |
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A metric unit of mass equal to100 grams.
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百克公制质量单位，等于100克 |
