In this paper,the author analyzes the types and cohesive functions of implication,and points out that it is one of the implicit cohesive devices.

This paper, from the perspective of the structual and semantic categories, discusses the usage of the implication isolated structure of titles.

There is implication in the pure scientific text, which is expressed by the means of grammar, vocabulary, semantics, context and pragmatics.

The Relevance-based Analysis of Implicatures;

Metaphor is a kind of weak implicature,and the subjectivity of the translator is apt to be realized in translating metaphor.

The theory of conversational implicature was first proposed by Grice in the William James lecture delivered at Harvard.

On the basis of analyzing the definition of connotation from different perspectives,it points out that the connotation of a word or a language unit is more related to its context than its referent.

on the basis of distinguishing ellipsis and concealment,this thesis discusses the substantival-predicated sentence type which is regarded as "omitting the predicative verb"by some scholars.

In the semantic research field,whether“Empty category”is concealment or ellipsis attracts peoples great attentions.

Determining the number of BP neural network hidden layer units;

Determining the number of hidden layer node and analyzing its influence on networks output are important problems in the application of Artificial Neural Networks (ANN).

In the modeling of Neural Network (NN), an optimization algorithm based on the principle of golden section to design the number of hidden layer nodes is utilized for increasing the precision of risk evaluation.