查询词典 operator domain

Finally, the thesis investigates the problem of intelligent personalized information recommendation in Internet, which is a kind of problem that there are no exact goal and no problem operator model. A domain oriented and adaptive multi agent system model for information recommendation is presented.

智能化、个性化信息搜索服务的目标是能根据用户的兴趣，向用户推荐其所感兴趣的信息，而用户的兴趣又要求系统通过用户的反馈来逐步感知，因而这类问题有别于前面研究所涉及的问题，是一种属于既无问题操作模型，又无确定目标的问题。

First, by the style of convolution and deconvolution operator in frequency domain, the aliasing problem in parabolic Radon transform is researched, and the critical sample of the parameter q and x is formulated.

首先通过频率域中褶积和反褶积算子的形式，对抛物线Radon变换中的假频问题进行了研究，得出了变量q和x的临界采样率的定量公式。

Latter, the relaxed proximal point algorithm was given as a modification of the original method. The proximal point algorithm only gives one zero of the operator in the domain of it.

求解极大单调算子的零点的一个经典算法是邻近点算法，邻近点算法将原问题转化为一系列好条件的子问题。

In this paper, the Maslov theory was introduced. By τ-p transform, seismic data is transformed from space to ,〖WTBX〗 and phase ( p s, p r ,τ) space. Then it is combined with Born inversion, and deduce the high-frequency asymptotic solution of migration operator amplitude in phase domain.

引人Maslov理论，利用τ-p变换将数据从空间分别变换到和及( p s ， p r ，τ)空间中，并将其结合到Born反演中，推导出了相空间偏移算子振幅的高频渐近解。

According to the forward and inverse results of synthesi zed seismic records, our Q filtrating operator of the depth domain is consis tent with the seismic laws in the absorbing media, which not only considers the effe ct of the media absorbing of the waves, but also fits the deformation laws, name ly the frequency dispersion of the body wave.

在深度域的Q滤波算子符合地震波在衰减介质中的传播规律，不仅考虑了介质吸收对地震波振幅的影响，而且还保证了所造成的波形畸变满足因果规律，即地震体波具有某种频散性质。

We synthesize the beamlet source and beamlet records in the wavelet domain using both rectangle and Gaussian windows and then extrapolate the synthesized data with a Fourier finite-difference operator.We test the method using the standard Marmousi model.

我们在小波域中，分别应用矩形窗和Gaussian窗合成了小波束源和小波束记录，并基于傅立叶有限差分算子，对marmousi模型进行了叠前深度偏移试算。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。