The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Energy consumption in data center has already become a widely concerned issue in cloud computing research. There are many studies on data center energy efficiency optimization. But most of them focus on the energy consumption of the servers and cooling equipment. Few of them considered data center network (DCN), which is also a significant energy consuming component. By applying newly emerged Software...
Dial-a-ride problem is one of the public transit services which can provide door-to-door service with shared-ride vehicle. Dial-a-ride problem differs from other routing and scheduling problems with time windows in that it typically involves service-related constraints such as maximum ride time constraints. Most of the models for dial-a-ride problem reported in the literature assume constant travel...
Vihicular Ad hoc Network(VANET) has developed rapidly in recent years, which requires information sharing, especially in secure and efficient driving. Content-centric Network (CCN) performs better in content retrieving with its in-network caching and naming-based routing. Whether to select a node as a caching point is very important for communications in VANET beacause of the shiftting from end-to-end...
A methodology is presented in this paper for stochastic optimal control of unmanned aerial vehicle performing the task of perimeter patrol. The optimal control problem is modeled as a Markov decision processes, and an approximate policy iteration algorithm is used for the cost-to-go function (value function) by introducing Gaussian process regression, resulting in improved quality of the decisions...
Vertical handoff is crucial to future wireless communication. In this paper, a two-step vertical handoff decision algorithm based on dynamic weight compensation is proposed. This algorithm adopts the filtering mechanism to reduce the system cost and improves the conventional algorithm by dynamic weight compensation and consistency adjustment. The experimental results show that our algorithm outperforms...
The power control problem is considered with the CR user QoS requirement and the interference to primary user under the threshold which the primary user can tolerate. We model the power control as a optimize problem which each CR user SINR must not less than minimum SINR requirement and the total interference must less than predefined threshold. Firstly we consider the network can satisfy the CR user...
For monitoring burst events in reactive wireless sensor networks (WSNs),an novel energy-efficient dynamic voting cluster (EE-DVC) algorithm is proposed. EE-DVC has three obvious features: Firstly, it adopts virtual grid ideas to divide each cluster into MtimesN square area and select a working node in each grid to reduce redundant information and save energy. Secondly, cluster head is dynamic voted...
Fuzzing is an effective approach to detect vulnerabilities. Unfortunately, the existing fuzzing approach suffers from some limitations, especially lacking support for automation in extracting the SUT specific knowledge and generating test script. In this paper, by combining fuzzing with TTCN-3 technique, we present T3FAH: a TTCN-3 based Fuzzer with Attack Heuristics. The approach automatically extracts...
To improve software productivity and quality, software engineers are increasingly applying data mining algorithms to various software engineering tasks. However, mining SE data poses several challenges. The authors present various algorithms to effectively mine sequences, graphs, and text from such data.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.