After analyzing and comparing several join schemes,a query optimization algorithm based on optimal join idea is advanced,and the design idea and implemental key technique of this kind of algorithm are discussed in detail.

The Optimal Relevance of Net News Headlines——A Mirror of the Press s Attitudinal Meaning;

Creative Treason and Optimal Relevance in Literary Translation;

The relevance theory holds that the course of translation is the course of searching after the optimal relevance.

The optimal relevance is both the goal that the translator tries to achieve and the criterion that translations should abide by.

Correct understanding to the original is essencial to translation,which depends on the translator\'s chances of finding out the optimal relevance between the original sentences and the author\'s contextual assumption.

The solver utilized optimal seam algorithm for the E step and coherence search for the M step,and effectively unified patch synthesis as well as consistency correction in the E step.

In order to solve the problem of position jitter of extremums and false synchronization,this paper analyzed the optimum reception of wavelet-based multirate modulation in AWGN channels,based on which an improved algorithm for clock acquisition was proposed by maximum-likelihood(ML-) estimation in a single subband.