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Earth-orbiting satellites experience a partial or full eclipse when they pass through the night side of the Earth. These eclipse events can have significant impacts on the satellite due to the dramatic change of the solar radiation incident. It is therefore essential to propose a high-precision eclipse prediction algorithm or even a space-borne algorithm applied to the satellite to predict the eclipse...
Most bike-sharing service providers offer a free ride for a short time period. In this paper, we study how to find the optimal route that is free of rental cost and minimizes the trip distance from one location to another within a bike-sharing system, in which the utilization of bike stations dynamically changes over time. We use a time-dependent dynamic graph to model the network of bike stations...
In our daily life, anomalies are everywhere in various application domains. Most anomalies may cause huge losses if we fail to detect them in advance. A lot of researches on this field have been carried out for years so as to detect anomalies as soon as possible. Among them, machine learning is one of the most used techniques. Previous work tries to improve detection by choosing various classifiers,...
Partitioning network, especially some DTN, can use Message Ferry(MF) scheme to restore network connection. Message TTL describes the maximum delay tolerance of transmission and messages with out-of-date TTL should be dropped. In this paper, we will study the problem of how to design the ferry's moving route dynamically to get high message delivery ratio under the constraint of message TTL, which we...
Location based services (LBS) is one of the fastest growing areas in recent years. Location update of mobile clients is fundamental in all types of LBS. But algorithms proposed in this field generally didn't concern the restricted context of road network and caused some unnecessary update. This paper proposed a revised vector-based update algorithm which taking characteristics of road network into...
Model predictive control (MPC) has been proved to be an effective advanced control method in the petrochemical industry and extended to other areas gradually. Dynamic Matrix Control (DMC) is an early widely used representative algorithm of MPC. As quick and powerful computing requirements of normal DMC, it is difficult to apply it to the real-time control with a small-physical-size embedded system...
File carving is a digital forensic technique which data files are extracted from unstructured data sources without the information of the previously stored file system. Since JPEG is one of the most popular image formats in the storage and distribution of digital photographic imagery, JPEG carving aroused numerous researchers' great interest. In this paper, a new algorithm of reassembling the fragmented...
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