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Currently, open source projects receive various kinds of issues daily, because of the extreme openness of Issue Tracking System (ITS) in GitHub. ITS is a labor-intensive and time-consuming task of issue categorization for project managers. However, a contributor is only required a short textual abstract to report an issue in GitHub. Thus, most traditional classification approaches based on detailed...
The power grid with renewable energy as the main power can be called the renewable energy grid. In view of the fact that the uncertainty of the power generation in a renewable energy grid is very prominent, power grid dispatching control which takes the power balance as the primary task must adopt targeted response measures. Based on the operation mechanism of energy storage, a mathematic model of...
As accessing computing resources from the remote cloud for big data processing inherently incurs high end-to-end (E2E) delay for mobile users, cloudlets, which are deployed at the edge of networks, can potentially mitigate this problem. Although load offloading in cloudlet networks has been proposed, placing the cloudlets to minimize the deployment cost of cloudlet providers and E2E delay of user...
Greening information and communications technology is becoming an environmental and economic sine qua non, and has attracted much research attention. For a cellular network, base stations (BSs) incur more than 50% of the energy consumption of the whole network. Therefore, BSs can be powered by green energy to reduce its on-grid power consumption. Meanwhile, the throughput has always been a critical...
In this paper, we propose a novel method to annotate the image of power grid objects (i.e., the electric equipment, the workers with different behaviors). This method is based on the convolutional neural networks (CNN). First, we obtain the attribute list of the image under the multi-label networks. Second, we employ the attribute-specific segmentation model to annotate the image. In this paper, we...
Due to the dense deployment of low-cost small base stations (SBSs), the serious interference among small cells has become a great challenge, which will decrease the system throughput significantly. Most of traditional time-domain inter-cell interference coordination (ICIC) schemes use almost blank subframes (ABS) to completely avoid the inter-cell interference. We observe that users can suffer a certain...
Greening information and communications technology is becoming an environmental and economic sine qua non, and has attracted much research attention. For a cellular network, the base stations (BSs) cost more than 50% of the energy consumption of the whole network. Therefore, BSs can be powered by green energy to reduce its on-grid power consumption. In this paper, we propose a greeN Energy Aware user...
Pharmacological chaperone therapy is an emerging therapeutic treatment for genetic disorders resulting from the improper folding of proteins. A large set of disease-causing missense mutations in Fabry disease result in the synthesis of improperly folded α-galactosidase A that are retarded in the endoplasmic reticulum (ER) and degraded in the ER-associated degradation pathway, although these proteins...
This paper studied the zero-sequence current of the distribution network with DGs. By comparison analysis, DGs do not affect the zero-sequence current measured at the initial points of each feeder. The transient component of zero-sequence current contains abundant fault information. The algorithm decomposed zero-sequence current on four scales with wavelet function db4. Fault characteristic components...
We propose a Green Cloudlet Network (GCN) architecture to provide seamless Mobile Cloud Computing (MCC) services to User Equipments (UEs) with low latency in which each cloudlet is powered by both green and brown energy. Fully utilizing green energy can significantly reduce the operational cost of cloudlet providers. However, owing to the spatial dynamics of energy demand and green energy generation,...
Cloud-based radio access network is becoming significant in the future wireless network domain, since it can allow for better interference management and on-demand spectrum resource allocation. On the other hand, dense deployment of femtocell networks is also a growing trend of cellular networks due to the exponential growth of traffic demand. Meanwhile, quality of service is always a general requirement...
Software reuse is critical in open source based software development, but it is very difficult to find a excellent reusable from large amount of similar candidate software in communities. Currently, lots of research works evaluate software by analyzing artifacts created by software developers, few of them reveals the power of feedbacks generated by software users, which we believe very valuable for...
In cellular/WLAN integrated networks, WLAN APs are usually deployed to offload the heavy traffic of cellular networks. Due to the inherent asymmetry of downlink and uplink in WLAN, competitions increase rapidly along with uplink traffic being offloaded to WLAN, which degrades system performance significantly. In this paper, we propose a new access scheme, i.e. uplink traffic cellular-first access...
Nowadays open source software represents a successful crowd-based software production model and is becoming an ecosystem combining huge amounts of software producers (such as software developers) and consumers (such as software users and customers). Lots of research work has been conducted on analyzing software artifacts created by producers, but few of them reveal the power of feedback from consumers...
Focus on constructing of general type-2 fuzzy set, the essence of type-n fuzzy sets are discovered. We first proved the consistency between interval estimation and nested sets representation theorem of type-1 fuzzy sets, which guarantees the rationality of our methods in this paper. Then, based on the fact that a type-1 fuzzy set can be constructed by a collection of intervals, an algorithm for constructing...
Traditional Chinese medicines (CM) topical herbs for atopic dermatitis are mainly consist of nourishing the blood, dryness-moistening, dry-dampness, skin-moisturizing and itching-relief, of which therapeutic principles are taken as dryness-moistening to relieve itching. Based on the modified mutual information, complex system entropy cluster and unsupervised hierarchical clustering, the CM recipes...
A fast image coding method based on dictionary is introduced firstly. This method gets more image information by fewer characters and can increase the coding efficiency. It improves the matching progress by the domination blocks which are generated with fixed dictionary. The advantage of this method is that different images can be generated with the same fixed dictionary set. The results of experiments...
A k-ka band passive limiter with schottky diode is presented. Test results show that this limiter can works in 18–40 GHz, and have characters of being low insertion loss, low SWR, good at amplitude limiting. It can keep the output power below 18 dBm with a maximal power input of 24 dBm CW.
This paper proposes an effective method for determining the extrinsic parameters (the locations and orientations of the cameras in a relative coordinate system), named as extrinsic calibration, for sparse network cameras, which are commonly utilized for covering much larger area. The proposed method formulates the problem as a Maximum A Posteriori (MAP) estimation, and calculates the parameters with...
Sensitivity analysis is used to estimate the effective variable (set) in a system. It plays an important role in model simplification, quality assurance of models and codes, identification of crucial regions in the parameter space and so on. Many interesting results have been obtained in the sensitivity analysis of traditional feed forward neural network. But the related work hasn't been done in fuzzy...
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