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Shopping of the same or similar types of products as shown in the online TV programs has been highly desired by many people, especially the youth. To meet this eminent market need, we develop a prototype system to enable effortless TV-to-Online (T2O) experience. A key component of this system is the product search that maps specific items embedded in the video into a list of online merchants. The...
Waveforms with low autocorrelation sidelobes are favorable to weak target detection and synthetic aperture radar (SAR) imaging. In this paper, we aim at solving the problem of designing waveforms with low autocorrelation sidelobes at specified intervals. Thus an amplitude optimization method (AOM) is proposed to minimize the weighted integrated sidelobe level (WISL) of the autocorrelation. By regarding...
For a large-scale software system, especially an online service system, when a performance issue occurs, it is desirable to check whether this issue has occurred before. If there are past similar issues, a known remedy could be applied. Otherwise, a new troubleshooting process may have to be initiated. The symptom of a performance issue can be characterized by a set of metrics. Due to the sophisticated...
Online service systems have been increasingly popular and important nowadays. Reducing the MTTR (Mean Time to Restore) of a service remains one of the most important steps to assure the user-perceived availability of the service. To reduce the MTTR, a common practice is to restore the service by identifying and applying an appropriate healing action. In this paper, we present an automated mining-based...
Content replication and placement is an effective technique to improve data availability and enhancing network performance. This area received attention in Content Delivery Networks (CDNs), but is less explored by the research community in Wireless Mesh Networks (WMNs). A number of replica placement algorithms were specifically designed for CDNs, but they do not consider the special features of wireless...
Content replication and placement is an area that has been well explored in the scope of Content Delivery Networks (CDNs), but has received relatively less attention from the research community when it comes to Wireless Mesh Networks (WMNs). There are a number of Replica Placement Algorithms (RPAs) that are specifically designed for CDNs. But they do not consider the special features of wireless networks...
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