Tokyo Institute of Technology · 공학
히데아키 이시이 교수의 연구실은 네트워크 기반 제어 시스템과 분산 알고리즘 분야에서 핵심적인 연구를 수행하고 있습니다. 특히 유한 대역폭을 가진 네트워크를 통한 제어 시스템의 안정성 확보를 위해 스위칭 제어법과 듀얼 타임(드웰타임) 기반 제어 전략을 개발하며, 시스템의 성능 향상과 물리적 손상을 방지하는 데 초점을 맞춥니다. 또한 페이지랭크와 유사한 분산 수렴 알고리즘을 활용한 다중 에이전트 시스템의 공감 문제 해결 기법을 연구하여 제어 이론과 인터넷 알고리즘의 융합을 선도하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
The use of networks in control systems to connect controllers and sensors/actuators has become common practice in many applications. This new technology has also posed a theoretical control problem of how to use the limited data rate of the network effectively. In this paper, we consider a system where its sensor and actuator are connected by a finite data rate channel. A design method to stabilize a continuous-time, linear plant using a switching controller is proposed. In particular, to preven
In the search engine of Google, the PageRank algorithm plays a crucial role in ranking the search results. The algorithm quantifies the importance of each web page based on the link structure of the web. We first provide an overview of the original problem setup. Then, we propose several distributed randomized schemes for the computation of the PageRank, where the pages can locally update their values by communicating to those connected by links. The main objective of the paper is to show that t
PageRank is an algorithm introduced in 1998 and used by the Google Internet search engine. It assigns a numerical value to each element of a set of hyperlinked documents (that is, Web pages) within the World Wide Web with the purpose of measuring the relative importance of each page [1]. The key idea in the algorithm is to give a higher PageRank value to Web pages that are visited often by Web surfers. Google describes PageRank as: "PageRank reflects our view of the importance of Web pages by co
In this paper, we consider the design of globally asymptotically stabilizing state-dependent switching rules for multimodal systems, first restricting attention to linear time-invariant (LTI) systems with only two states for the switch, and then generalizing the results to multimodal LTI systems and to nonlinear systems. In all cases, the systems considered do not allow the construction of a single quadratic Lyapunov function and, hence, fall in the class of problems that require multiple Lyapun
