演講者：國立臺灣大學 資訊工程學系 周承復教授
演講題目：On Improving User-Experienced Service Quality in Data Center
演講摘要：Since one major origin of transmission delay is the lack of external and
internal bandwidth, many data center network researches focus on improving
the network throughput. However, our work did not follow their idea but
started by investigating the underlying reasons of the depletion of user-perceived
service quality to fulfill the true requirements of users. That is, the most concerned
service-quality factors  to cloud service users, including (1) the latency of
services, and (2) the quality of results, should both be the ultimate research goals
of researchers. We noted that, although the first factor was known by industrial
researchers, the second factor was mostly never been deeply investigated.
Therefore, we conducted experiments with real-world data, and observed that
for a query, a server often generates only a small number of relevant documents, i.e.,
higher similarity to the query, and others are not.