Shinako Matsuyama

Large-Scale Analysis of Network Bistability for Human Cancers

Protein–protein interaction and gene regulatory networks are likely to be locked in a state corresponding to a disease by the behavior of one or more bistable circuits exhibiting switch-like behavior. Sets of genes could be over-expressed or repressed when anomalies due to disease appear, and the circuits responsible for this over- or under-expression might persist for as long as the disease state continues. This paper shows how a large-scale analysis of network bistability for various human cancers can identify genes that can potentially serve as drug targets or diagnosis biomarkers.

An agent simulator meets the enron for communication network analysis

Agent-based modeling, simulation, and network analysis approaches is one of the emergent techniques among soft computing literature. This paper presents an agent-based model for analyzing the characteristics of peer-to-peer human communication networks. We focus on the process of the collapse of Enron Corporation, which is an interesting topic among the business management domain. The Enron email dataset is available for the analysis. The simulation results are compared with the Enron email dataset in the following meanings: (i) the degrees of the communication networks and contents information and (ii) the changes of network structures among the major events. The investigation suggests that the agent-based model is beneficial to uncover the characteristics of implicit communication mechanisms of the firm.

A System for Secure Person-to-Person Contents Sharing Employing Broadcast Encryption and Certain Third Party

This paper points out to a particular person-to-person communications network and proposes a system for secure contents sharing (exchange) developed under certain constraints on functionality and implementation. Particularly, a dedicated access control system is proposed based on employment of the broadcast encryption concept for controlling the access privilege and certain third party which reduces the most critical issues at the contents owner