This paper has give summarized accounts of the foreign and domestic researches on social network,competitive intelligence,and social network in competitive intelligence activities,and on the basis of these accounts,this paper also points out some problems exiting in the foreign and domestic researches on social network in competitive intelligence activities.

The paper discusses the constituents,characters,applications of four social networks named as friendship network,consultation network, faith network and work flow network and the differences of intelligences gotten from them,and probes into how to use them more appropriately to serve for enterprises.

The author thinks that node s centrality degree index of social network can be used to analyze the competitor.

So I transform the statement of "weak embeddedness" proposition from "economic actions are embedded in interpersonal network network" to "the network of division of labor and interpersonal must b.

Such system consists of two sub-systems:one is the topic map based explicit knowledge navigation system and the other is the interpersonal network based tacit knowledge navigation system.

On the contrary,it triggers a transition of social communication patterns of Chinese farmers from the interpersonal network to the market network.

This paper introduces the concept and the importance of the human network in competitive intelligence.

The paper discusses the basic conception of human network and human intelligence network and probes into the objective condition,main methods of architecting the human intelligence network in corporations and the essential strategy of managing the human intelligence network in corporations.

A Study on the Structural Holes Theory-Based Egocentric Human Intelligence Network Analysis System;

Study on the Social Network-based Human Intelligence Network;

Therefore,this paper points out that the study on human intelligence network to knowledge owners can effectively tap tacit knowledge and improve the effectiveness of knowledge management.

This paper analyzes the social capital of library which include social network,trust and social norm,discussing library s strategies on how to foster social capital,pointing out its shortcomings,and putting stress on rational activities.

Be based upon analyzing the three characteristics,this paper adopts the thoughts of small world and scale free networks theories to build the model of some Region\'s social network because of the public\'s communication in the condition of the crisis event.

E-mail Questionnaire Method and Simulation Based on Network Interpersonal Relationship;