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Human brain determines the ability of perceiving and behaving. Previous works have introduced network science and control theory to stimulate the brain states and functions. In this work, network controllability theory is utilized to study the structural controllability of both temporal and static functional brain networks. We find that only a few nodes are the required driver nodes to structurally...
Influence diagram is an effective mathematical representation of decision situations, in the traditional influence diagrams, the dependencies between nodes of uncertainty and the value table of value nodes are constructed through probability models, they get widely applied in intelligent decision analysis. But information system (IS) in our lives are very complicated, such as grey information data,...
Due to sharing physical resource, the co-residency of virtual machine (VM) in cloud is inevitable, which brings many security threats, such as side channel attacks and covert channel threats. Most of previous work focused on detecting and resisting a bewildering variety of co-resident attacks. Generally, improving the VM deployment strategy can also mitigate the security threats of co-resident attacks...
In decision making dealing with computing with words, the importance of the statement that words mean different things for different people has been highlighted. In this paper, we focus on personalizing numerical scales of linguistic terms in decision making with hesitant fuzzy linguistic preference relations (HFLPRs). First, an average consistency measure for HFLPRs is provided, and then an optimization-based...
Different from memory management mechanisms in legacy systems, those in mobile devices leverage the use of app caching to accelerate app launch performance. The responsiveness of switching back to a recently used app becomes significantly worse if the cached app process has been killed in the past due to a low memory constraint. We propose a new approach to optimize the low memory killer with reinforcement...
The vulnerability of a network may suffer tremendous economic losses. From the perspective of network nodes, network security depends not only on the behavior of a node but also on that of its neighbours. We propose a non-cooperative networking vaccination game with economic incentive mechanism under a susceptible-infected-susceptible (SIS) epidemic process. In the game each node individually decides...
An increasing number of unknown islands, an important resource for human development, is identified based on segmentation of remote sensing image. Different from traditional digital image, remote sensing image has significant characteristics, such as multi-band, multi-source, and multi-granularity. Thus, the segmentation theory based on traditional digital image is not suitable for remote sensing...
In this work, we propose OpenSched, a layered architecture that glues the QoS apps, the controller and the switches together to maximally unleash the power of centralized QoS control. Specifically, our design consists of (1) a flexible northbound interface via the ``builder pattern'', (2) one-to-many controller-switch interactions via device abstraction, thread pooling and Java NIO's selector mechanism,...
In this paper, the robust quadrotor attitude regulation based on fault tolerant control schema is investigated. The hover stability is heavily dependent on the thrust forces generated by the four rotors of the quadrotor. Once the rotors are in fault and loss the efficiency, the quadrotor will be unstable, even out of control. To the end, this paper presents a robust fault tolerant control schema for...
In cloud computing and high performance computing, a large job is typically divided into many small tasks for parallel execution in a distributed environment. Due to different reasons, some tasks (so-called ‘stragglers’) are considerably slower than the others, delaying the completion of the job. We propose a new machine learning approach to automatically identify and diagnose the stragglers. To first...
This paper introduced the development background and analyzed the research significance of audio recognition system. Then explained the principle of digital audio fingerprinting technology and related applications, and introduced the basic concepts and properties. It also analyzed the most commonly used model and summarized the corresponding algorithm of digital audio system. Finally, several methods...
The integration of a large amount of wind generators to the power system may pose new issues to its control and operation. One of important issues is that low frequency oscillation may be induced by the variation of the wind power, which is also referred as forced low frequency oscillation. To analyze the mechanism of the forced low frequency oscillation of the wind-integrated power system, a 7-order-model...
This paper presents a H-bridge building block with 1700V SiC MOSFET for a pulsed power application to achieve both high voltage, high current and high switching frequency capability. Both power module level and system level stray inductance is minimized to better utilize the SiC high switching speed capability. Meanwhile, since the large pulsed energy is required to drive the pulsed load, voltage...
This paper presents a row voltage switch and a column voltage switch for the multitime programmable (MTP) memories. In the standard CMOS process, without using any specially-designed Laterally-Diffused MOS (LDMOS) transistors, the proposed circuits can ensure that none of the devices gets overstressed which greatly improves the reliability and endurance of the circuits, and this is achieved by simply...
Briefly introduced the development background of stand assist lifts, analyzed the development status, classified the existing products, selected some products and illustrated them. At last, this thesis put forward some questions on the application and promotion of existing products and proposed several suggestions on their development.
In order to improve the reliability of wind power integration, using the continuous ant colony support vector machine theory based on the analysis of peaking need, we put forward the method of optimization analysis of influencing factors on wind power integration. According to the influence of parameter selection to optimization effect, we discuss the continuous ant colony support vector machine model...
The rapid development of cloud computing expands the scale of modern cloud data centers, resulting in growing challenges of energy consumption. Load balancing of virtual machines(VMs), for the purposes of improving the utilization of physical resources and reducing energy consumption, has become a research focus in recent years. However, the existing researches mostly focus on how to maximize resource...
For alleviating the contradiction between the speed and precision of interpolation, a parallel CNC system based on symmetric multi-processor J1900 quad-core processor is developed. A parallel prosumer system framework is put forward based on circular buffer which establishes the mechanism of module decoupling and data transmission. The parallelization of CNC is completed using the multi-thread method...
The study of consistency is a very important problem in decision making using preference relations. This paper focuses on measuring the consistency of hesitant fuzzy linguistic preference relations (HFLPRs). In this paper we propose the optimization-based approach to estimate the range of consistency degree in a HFLPR. The underlying idea of the proposed approach consists in measuring the pessimistic...
We investigate the degrees of freedom (DoF) of coexisting 2 × 2 X channel and 2 × 2 interference channel with single antenna at each node. Asymptotic interference alignment approach is used to obtain the lower bound on the DoF: (n+1)5+3n5/(n+1)5+n5 based on symbol extension model. This bound will be tight when n tends to infinity, i.e., the limit 2 of lower bound on DoF will meet the upper bound.
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