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This paper proposes a novel algorithm to detect the community structure. Based on cascading failure model, the algorithm reveals the relationship between network nodes. Then, we exploited the k-nearest neighbors algorithm to transform the relationship between the nodes into European space, and quantitatively describe the close relationship between the nodes. Consequently, the network nodes will be...
In this paper we address the problem of automatic clothing parsing in surveillance video with the information from user-generated tags such as “jeans” and “T-shirt”. Although clothing parsing has achieved great success in fashion clothing, it is quite challenging to parse clothing in practical surveillance conditions due to complicated environmental interferences, such as illumination change, scale...
A novel dual-layer Jerusalem-shaped element is proposed to design a circularly polarized reflectarray with a linearly polarized horn antenna. The proposed element shows an almost linear behavior and more than 500° phase variation. A 90° relative phase shift is generated by adjusting the arms of the element independently. Among these, a 316-element circular aperture reflectarray is investigated on...
The mutation operator of Biogeography-Based Optimization (BBO) makes a large advance for the diversity of the solution space. Generally speaking, the quality of a solution is closely related with the maximum mutation rate, which is always decided by experience. But for the different situations, the maximum mutation rate may be different. In this paper, we propose an Intelligent Mutation Operator of...
Massive multi-input multi-output (MIMO) can provide high throughput improvements by using a large number of antennas to serve a small number of terminals simultaneously. Due to channel hardening of massive MIMO, this paper directly investigates the approximate network throughput with zero-forcing beamforming (ZFBF) and conjugate beamforming (CBF) schemes when channel state information (CSI) acquisition...
With the improvement of requirements for people's living and working environments, the electromagnetic radiation from mobile base station antennas has become the focus of people's attention. This paper sums up the standard limits of electromagnetic radiation in various industries in China, compares them with those stated in the international standards, and then brings forward suggestions on the development...
The rapid development of mobile telecommunication industry has brought great convenience to people's lives, and even progressively have changed our way of life. With the continuous improvement regarding coverage area, internet speed etc. of requirements, there are more and more mobile base stations, and the issue concerning the electromagnetic radiation of mobile base station is also of very high...
We describe an approach using local features to resolve problems in text localization and recognition in complex scenes. Low image quality, complex background and variations of text make these problems challenging. Our approach includes the following stages: (1) Template images are generated automatically; (2) SIFT features are extracted and matched to template images; (3) Multiple single-character-areas...
The rapid prototype system for Alexandria Digital Library has proven of great value in clarifying the issues that we will have to resolve in the next stages of development of a digital library for geo-spatial information. In particular, we resolved several important issues concerning both the user interface and the catalog. In relation to the catalog, metadata standards arose as a key issue for the...
In order to overcome CAN bus's shortcomings, this paper puts forward a design sc-heme of CAN bus and Ethernet interconnection system and realizes th-e data interconnection between CAN bus network and Ethernet. This n-ovel design, high reliability and good ve-rsatility, is suitable for the industry field bus network control field.
When a cloud data center is constructed in the same location as a high voltage substation, the power frequency magnetic field when the substation works normally and the short-time power frequency magnetic field at the time of short circuit may cause hazards to the information storage equipment of the cloud data center constructed on the same site. Through measurements and analyses, this article summarizes...
Electromagnetic radiation has been recognized by more and more people and has made them feel frightened. Even in some cities, such phenomena have taken place that residents urge to remove established base stations, cut off feeder lines or prevent new base stations from being set up. Due to lack of in-depth research on electromagnetic radiation around base stations, communication operators in China...
Since 1960s, no solutions have been found both home and abroad to the theory and protective technology related to hazard influences of a high voltage transmission system on a communication system. Previously, the major technical measure against comprehensive hazards of the strong current is to make them separated. However, in city planning, it is inevitable to arrange them closely or construct them...
Car re-identification, searching a specific car object from a large-scale car image database, is investigated in this paper. Previous work mainly focuses on fixed pose and overlooks the special appearance. However, avoiding matching other poses would lead to coarse results of the car retrieval. And some special attributes like individual paintings which are greatly helpful for car retrieval have not...
As we all know, the possibility of heavy earthquake is tiny, however, the destructiveness is serious, so it is important to improving the veracity of predicting destructive earthquake. This paper using the database of the destructive earthquake precursor, by defining the small probability even and estimating the parameter of success rate in small probability event prediction and changing the parameter,...
To cope with challenging communication conditions in VANETs where connectivity is intermittent, and the quality of wireless channel is unstable and communication links are easily broken, we present an improved infrastructure assistant vehicle-to-passenger (V2P) protocol was proposed. The proposed protocol can reach very high query efficiency and matching accuracy with low delivery delay and communication...
The rapid growth in the number of mobile devices and the higher data rate requirements of mobile subscribers have made wireless signal processing a key driving application of mobile computing technology. To design better mobile platforms and the supporting wireless infrastructure, it is very important for computer architects and system designers to understand and characterize the performance of existing...
Fuzzy Cognitive Maps (FCMs) are a causal modelling technique. FCM models contain nodes (representing the concepts to be modelled) and directed weighted edges (representing the causal relations between the concepts). Data-driven FCM learning algorithms are an objective approach with the potential to discover the causal relations that are unknown to human experts. Learning FCM from data can be a difficult...
With the development of science and technology, many new academic terms emerge every day. But current available online or offline dictionaries can't translate some Chinese academic terms into English correctly. In this paper, we introduce our online Chinese-English academic dictionary that extracts the proper English term according to Chinese term from the bilingual literature abstracts. The abstracts...
In this work, ferromagnetic Ni0.5Zn0.5Fe2O4 (NZF) particles were prepared through the co-precipitation method. Then, dielectric ferromagnetic composites with multi-walled carbon nanotubes (MWCNT) and NZF embedded into E-51 Epoxy matrix were synthesized by a curing process using tetraethylenepentamine (TEPA) as the curing agent. In order to facilitate the contrast, the volume fraction of the NZF ferrite...
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