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.
The worldwide market for luxury and fashion goods is dominated today by a handful of multinational corporations (MNCs). The way MNCs access foreign markets and organize distribution, however, remains unclear. In this paper, based on an analysis of foreign trade statistics, we take the example of watches and provide a model to highlight the most important flows as well as regional hubs in this global...
We report the mechanism of plasmon-enhanced quantum dot (QD) emission as a result of interactions between QDs via plasmon, and interactions between QDs and the plasmon excited by both QD emission and external illumination.
The health status assessment of power distribution areas (PDA) can provide a basis for the decision-maker to ascertain the unhealthy PDAs among multiple PDAs. In this paper, an evaluation indicator system of the health status of PDAs is established based on four evaluation indicators. A new data acquisition system is proposed in this paper to enhance the reliability of communication system. The evaluation...
The process of reflectarray antenna design can be usually carried out into two separate steps: element design and aperture phase distribution design. In the step of element design, reflectarray elements need to be devised based on the requirements of phase range, element bandwidth, polarization and so on. Then, different methods can be employed to analyze and predict the reflection phase for a given...
Most GPU-based graph systems cannot handle large-scale graphs that do not fit in the GPU memory. The ever-increasing graph size demands a scale-up graph system, which can run on a single GPU with optimized memory access efficiency and well-controlled data transfer overhead. However, existing systems either incur redundant data transfers or fail to use shared memory. In this paper we present Graphie,...
Learning and planning in partially bservable Markov decision processes (POMDPs) is computationally intractable in real-time system. In order to address this problem, this paper proposes a belief policy reuse (BPR) method to avoid repeated computation. Firstly, the policy reuse evaluation mechanism based on belief Kullback¨CLeibler divergence is presented as a similarity metric between beliefs in the...
Bayesian reinforcement learning provides an elegant solution to the optimal tradeoff between exploration and exploitation of the uncertainty in learning. Unfortunately, the size of the learning parameters grows exponentially with the problem horizon. In this paper, we propose a novel Monte Carlo tree search for Bayesian reinforcement learning approach using a compact factored representation, to solve...
Monte-Carlo tree search (MCTS) combines the generality of stochastic simulation and the accuracy of tree search, which has attracted the great attention of scholars. However, the MCTS search requires a sufficient number of iterations to converge to a good solution, which is more difficult to optimize. In order to solve this problem, this paper presents a point-based incremental pruning (PIP) for Monte-Carlo...
In this paper, we investigate the robust sampled-data control invariance of Boolean control networks (BCNs) via semi-tensor product of matrices. A necessary and sufficient condition is obtained to check whether or not a given set is robust sampled-data control invariant under a given sampled-data state feedback controller (SDSFC). At last, the study of model about lac operon in the Escherichia coli...
A non-interleaved 2GS/s, 8b flash ADC achieves an effective resolution bandwidth (ERBW) of 1.74 GHz using a remainder number system (RNS) architecture, which results in reduced number of comparators while preserving the flash speed of the converter. The prototype ADC, fabricated in a 65nm CMOS process with an area of 0.08 mm2, achieves an SNDR of 40.7 dB for a Nyquist input. The measured DNL and INL...
In this paper, a multi-focus phase matching method is presented for the design of wide-angle beam scanning reflectarray antenna with mechanical steering. A single-layer 16×16-element reflectarray antenna with variable-size square patch elements operating at 12GHz has been designed utilizing the introduced optimization technique. Numerical results show that the gain variation less than 2dB is achieved...
This paper presents the first systematic study on co-scheduling independent jobs on integrated CPU-GPU systems with power caps considered. It reveals the performance degradations caused by the co-run contentions at the levels of both memory and power. It then examines the problem of using job co-scheduling to alleviate the degradations in this less understood scenario. It offers several algorithms...
We propose a mathematical framework for synthesizing motion plans for multi-agent systems that fulfill complex, high-level and formal local specifications in the presence of inter-agent communication. The proposed synthesis framework consists of desired motion specifications in temporal logic (STL) formulas and a local motion controller that ensures the underlying agent not only to accomplish the...
Presents the introductory welcome message from the conference proceedings. May include the conference officers' congratulations to all involved with the conference event and publication of the proceedings record.
Modern manufacturing systems are human robot systems that consist of human operators and intelligent robots collaborating with each other to accomplish complex tasks. The system performance of such human robot systems relies heavily on reliable and efficient human robot collaborations, which may be seriously compromised due to temporal variations in human to robot trust. This paper proposes to model...
A Cassegrain reflectarray antenna using compact ring focus feed is introduced in this paper. The ring focus is formed by the dielectric guide sub-reflector, where the impedance matching can be achieved by adjusting the dimension of the dielectric guide. Also, the actual incidence angles of the coming waves are considered in the design of the reflectarray. A 572-element Cassegrain reflectarray with...
Software speculative parallelization has shown effectiveness in parallelizing certain applications. Prior techniques have mainly relied on simple exploitation of heuristics for speculation. In this work, we introduce probabilistic analysis into the design of speculation schemes. In particular, by tackling applications that are based on Finite State Machine (FSM) which have the most prevalent dependences...
The integrated architecture that features both CPU and GPU on the same die is an emerging and promising architecture for fine-grained CPU-GPU collaboration. However, the integration also brings forward several programming and system optimization challenges, especially for irregular applications. The complex interplay between heterogeneity and irregularity leads to very low processor utilization of...
Reflectarrays and transmitarrays are extremely important in the applications of terahertz (THz) technologies, as they feature merits like high gain and low cost. In this work, a reflectarray and a transmitarray are designed at 300GHz. A 32 × 50 offset-fed wideband reflectarray antenna, based on single-layer elements with a large and linear phase response, shows a fixed beam direction without frequency...
In this paper, we focus on the multi-copy routing in Vehicle Delay Tolerant Networks (VDTNs). In current multi-copy routing, the different copies of each packet search the destination node independently, which leads to a low utilization of copies since they may search through the same path repeatedly without cooperation. To solve this problem, we propose a fractal Social community based efficient...
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.