论文部分内容阅读
关于信息的概念,目前有许多说法.本文根据据"信息是对事物属性的表征"这一观点出发,提出了一种信息表征和测度的方法以及相应的信息测度公式,并讨论了信息测度公式的性质和这种信息表征和测度方法在基于内容的图像检索系统中的应用.
信息的表征和测度方法及应用研究
【摘 要】
：
关于信息的概念,目前有许多说法.本文根据据"信息是对事物属性的表征"这一观点出发,提出了一种信息表征和测度的方法以及相应的信息测度公式,并讨论了信息测度公式的性质和这
【机 构】
：
北京邮电大学智能研究中心
【出 处】
：
情报学报
【发表日期】
：
2004年期
【基金项目】
：
国家自然科学基金;
其他文献
本文通过分析建构主义的原理,重点说明了建构主义在大学英语课堂教学中的几种方法:支架式教学、抛锚式教学、随机进入教学及其在大学英语课堂教学中的原则与应用。
This art
Accurate method for determining vibration temperatures, and gain limitation in pulse RF-discharge CO
An accurate method of determining gain coefficients of pulse RF-discharge CO2 laser is developed,which involves the use of both the regular 00°1 and 00°2 lase
In this paper the authors give the weighted weak LlogL type estimates for a class of the higher order commutator generated by the Marcinkiewicz integral and a B
构造了激发k玻色子q相干态a+mqz,k,j〉q(k≥3),并用数值计算的方法研究了参数m对反聚束效应的影响. 结果表明:反聚束效应明显受到m的调节. 对于大x(x=|z|2),激发(即增加光子)
The mesh transformation method is applied on a two-dimensional elastic crystal model to study the formation of laminated microstructure inaustenite-martensite p
Compositional Distribution and Growth Mode of Garnet Porphyroblasts during Deformation and Metamorph
Although porphyroblast microstmctures play an important role in structural and metamorphic studies, there are still controversies in the interpretation. The foc
The effect of nonmetallic inclusions in the droplet of the stainless steel covered electrode on the porosity was researched.The result shows that the nonmetalli
Optical pulse compression using a nonlinear optical loop mirror constructed from dispersion decreasi
A novel scheme to compress optical pulses is proposed and demonstrated numerically, which is based on a nonlinear optical loop mirror constructed from dispersio
An experimental study of cellobiose inhibition in cellulose hydrolysis by synergism of cellobiohydrolyse I and endoglucanase I is presented. Cellobiose is the s
核心价值体系是一定的社会系统得以运转、一定的社会秩序得以维持的基本精神冲力.在当前多元价值观并存的情况下,对社会主义核心价值体系的内容、核心原则及作用等进行论述,