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This paper reports a first comprehensive study and large-scale test on web video (so-called user generated video or micro video) categorization. Observing that web videos are characterized by a much higher diversity of quality, subject, style, and genres compared with traditional video programs, we focus on studying the effectiveness of different modalities(More)
In recent years, constructing mathematical models for visual concepts by using content features, i.e., color, texture, shape, or local features, has led to the fast development of concept-based multimedia retrieval. In concept-based multimedia retrieval, defining a good lexicon of high-level concepts is the first and important step. However, which concepts(More)
Odor intensity (OI) indicates the perceived intensity of an odor by the human nose, and it is usually rated by specialized assessors. In order to avoid restrictions on assessor participation in OI evaluations, the Vector Model which calculates the OI of a mixture as the vector sum of its unmixed components' odor intensities was modified. Based on a detected(More)
In this paper, We find that all of retransmission policy in CMT has some defects for reducing receive buffer blocking. In order to further alleviate some of the throughput degradation caused by rbuf blocking problem, the combination of Lossrate, Congestion window and Slow start threshould (LCS) to be taked into account. So, we present compound parameter(More)
Previously, we studied the performance of transport layer multihoming (e.g., STCP). Using the emulated application of the bulk data transfer, we investigate existing overlay multicast schemes and find that all of them have a inherit performance limitation caused by tansport layer singlehoming (e.g., TCP). Based on this, we design a new overlay multicast(More)
Gas chromatography-mass spectrometry, olfactometry, and other related methods were applied for the qualitative and quantitative analysis of the characteristics of odorous gases in the pretreatment workshop. The composition of odorous gases emitted from municipal food waste was also investigated in this study. The results showed that the tested gases are(More)
As improvement of wireless and mobile technologies such as FMIPv6 and mSCTP, mobile devices such as laptops and PDAs are widely used. We investigate existing Mobile IPv6 scheme such as FMIPv6 in network layer and mSCTP in transport layer and find that both of them have some defects for signaling cost in mobile IPv6 environment. So, we we make a potential(More)
A novel odor interaction model was proposed for binary mixtures of benzene and substituted benzenes by a partial differential equation (PDE) method. Based on the measurement method (tangent-intercept method) of partial molar volume, original parameters of corresponding formulas were reasonably displaced by perceptual measures. By these substitutions, it was(More)
We investigate existing mobile IPv6 scheme in network layer (e.g., FMIPv6) and in transport layer (e.g., mSCTP) again. We find that FMIPv6 easily causes packet forwarding process of access routers (ARs), buffering overhead, a few handover signaling costs and latencies. We also find that mSCTP can make the mobile client (MC) change its IP address dynamically(More)
The olfactory evaluation function (e.g., odor intensity rating) of e-nose is always one of the most challenging issues in researches about odor pollution monitoring. But odor is normally produced by a set of stimuli, and odor interactions among constituents significantly influenced their mixture's odor intensity. This study investigated the odor interaction(More)