University of Tokyo

Latest Content From University of Tokyo

Whitepaper: Educational Campuswide Computing System (ECCS)

by University of TokyoJan 01, 2008

The University of Tokyo’s Information Technology Center (ITC) is in charge of controlling, administering and maintaining the Educational Campuswide Computing System (ECCS). The main purpose of the system is to provide students, researchers, professors, and other professionals with a proper environment to access information. This research from paper University of Tokyo originally meant for students, is mainly dedicated to introducing the characteristics of the ECCS. Therefore it does not explain features common to other systems. Moreover, this paper focuses on how to access the system from a fixed computer terminal or from a user’s mobile computer.

Whitepaper: Multimodal Presentation Markup Language on Mobile Phones

by University of TokyoJan 01, 2008

Mobile phones have become indispensable device in daily life. At the same time, their functions are increasing both in voice and non-voice services. Thanks to the increasing capabilities, embodied character agent is now available on mobile phones via dedicated 3D graphical engine in Japanese mobile phones. The paper has studied the possibility of bringing multimodal presentation to this platform as a successive work to MPML (Multimodal Presentation Markup Language) introduced by Ishizuka et al. MPML has been developed and released on PC based computing environment.

Whitepaper: Fast Ethernet Is Sometimes Faster Than Gigabit Ethernet on LFN - Observation of Congestion Control of TCP Streams

by University of TokyoJan 01, 2008

With the rapid progress of network technology, over-10Gbps domestic backbone network is ready to use, and Gigabit Ethernet is now quite common in ordinary environment. On the other hand, it is well known that current congestion control mechanism of TCP/IP doesn’t fit well to the network with long latency and wide bandwidth, called Long Fat Pipe Network (LFN). In this paper, the researchers show their observation on TCP/IP 7500-mile data transfer between Maryland and Tokyo, where the bottleneck is OC-12 APAN line. Surprisingly, throughput of Fast Ethernet is sometimes much faster than Gigabit Ethernet whose throughput is very unstable.

Whitepaper: Ajax for Networks and Ontologies

by University of TokyoJan 01, 2008

Databases contribute to the management of huge biological data, and the associated tools with their sophisticated algorithms contribute to the analysis of the huge data. Databases and tools have been publicly released as web services for biologists to accelerate biological studies. Although these web services have become essential for biological studies, their usability is often inadequate because they are just implemented by web1.0 techniques such as HTML and CGI, in spite of their handling huge data. In order to improve the usability, the techniques of the web services have been shifted from web1.0 to web2.0 in other fields of applications