作者：
Luo, BinGuo, HongCREAM Group
State Key Lab. of Advanced Optical Communication Systems and Networks Inst. of Quantum Electronics School of Electronics Engineering and Computer Science Peking University Beijing 100871 China
A-type atom coupled by additional driving light and radio frequency (RF) field can generate controllab.e simultaneous slow and fast light at two frequencies. Distortions by radiative dampings are discussed and compens...
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We demonstrated a simple all-normal-dispersion Yb-doped femtosecond fiber laser, which delivers a pulse with 8.9 nJ and 33 MHz. After the extracavity compression with a grating pair, the pulse was compressed to 210 fs...
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作者：
Li, JunhuiYu, QuanfuLiu, YuGuo, HongCREAM Group
State Key Lab. of Advanced Optical Communication Systems and Networks Inst. of Quantum Electronics School of Electronics Engineering and Computer Science Peking University Beijing 100871 China
Violation of Bell inequality cannot guarantee non-locality, thus an applicable hacking scheme on device-independent Bell test based quantum randomness expansion is given, together with a more secure upper bound on gen...
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Vehicular networks have become increasingly popular in the research community. Messages in vehicular networks are usually subject to both time and space constraints, and therefore should be disseminated during a speci...
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Sensor networks deployed in remote locations require easy to use but also extremely expressive tools for reliable operation. The PermaSense project has developed a platform based on a number of proven COTS components ...
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ISBN:
(纸本)9781424451081
Sensor networks deployed in remote locations require easy to use but also extremely expressive tools for reliable operation. The PermaSense project has developed a platform based on a number of proven COTS components and integrated with the GSN based data backend. All tools are accessible from a single location in a web browser. This demo will present the monitoring and control tools in live operation with deployments on real field sites in the Swiss Alps.
We investigate link-state advertising in multi-domain networks with dynamic traffic. A novel triggering scheme is proposed to monitor a subset of domain links, and thereby achieve a balance between salab.lity and accu...
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Nowadays energy-awareness represents a big challenge for cloud computing infrastructures as the adoption of cloud computing become a certain fact and together with the increasing costs for energy, calls for energy-awa...
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Content sharing is one of the most significant issues of Digital Rights Management (abbr. DRM). Various schemes for content sharing have been presented in the past years. However, the main goals of these schemes are t...
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Feature subset selection, as a special case of the general subset selection problem, attracted a lot of research attention due to the growing importance of data-mining applications. However, since finding the optimal ...
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ISBN:
(纸本)9781479903573
Feature subset selection, as a special case of the general subset selection problem, attracted a lot of research attention due to the growing importance of data-mining applications. However, since finding the optimal subset is an NP-hard problem, very different heuristic search methods have been suggested to approximate it. Here we propose a new second-order cone programming based search strategy to efficiently solve the feature subset selection for large-scale problems. Experimentally, it is shown that its performance is almost always better than the greedy search methods especially when the features are strongly dependent.
The thesis also puts forward a fast handoff method based on RSSI and LQI, which makes improvements on preset parameters, subnet selection, decision standards and reparation of switching failure. The new method which c...
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