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Cross-media retrieval, which uses a text query to search for images and vice-versa, has attracted a wide attention in recent years. The mostly existing cross-media retrieval methods aim at finding a common subspace and maximizing different modalities correlations. But these approaches do not directly capture the underlying semantic information of different modalities. This paper proposes a novel cross-media...
In web topic detection, detecting “hot” topics from enormous User-Generated Content (UGC) on web data poses two main difficulties that conventional approaches can barely handle: 1) poor feature representations from noisy images and short texts; and 2) uncertain roles of modalities where visual content is either highly or weakly relevant to textual cues due to less-constrained data. In this paper,...
It is essential to determine the shear strength parameters c and φ on the sliding surface for stability evaluation and engineering design of a landslide. In this study, a new parameter back analysis method is proposed by combining the 2D/3D upper bound method of limit analysis and reliability theory to accurately determine the shear strength parameters for a 3D slope with a single failure surface...
The AR (n)-XARCH model is established to deal with the autocorrelation and arch effects of the time series of HS 300 stock index and its weighted stock.The residual series obtained through the above model are converted to new series through probability integral transformation, which are used to estimate the parameters of the corresponding copula. The empirical research based on AR (n)-XARCH-Copula...
This paper considers a radar system capable of adaptively adjusting its transmitted waveform, by which the system is able to dynamically mitigate the interference of the clutter, thus improve the detection performance. The key feature of the adaptive mechanism is the optimum waveform design, which is a complex multi-dimension optimizing problem and such a problem in this particular application has...
This paper considers the unit energy phase-modulated (PM) waveform design in communications and radar. For a given scenario, the weighted integrated sidelobe level (WISL) of a waveform is often used as a metric to evaluate the performance of a system. The waveform design with the minimization of the WISL as the criteria is a high dimension search problem and the classical solution for the multi-dimension...
This paper introduced the quality control and quality assurance tests used during high-speed railway subgrade construction by China and Germany. Through laboratory Proctor compaction tests and in-situ tests using two kinds of filling materials, the correlations between compaction grade used in China and Proctor density used in Germany are obtained. The relations among the porosity, compaction grade...
The land use change detection methods using remote sensing data have been studied for a long term. All of these methods can be divided into three levels: pixel-level, feature-level and knowledge-level. In this paper, the advantages and disadvantages of these methods are analyzed, and a novel approach is proposed to detect the land use changes using the object-based feature consistency analysis. The...
In wireless sensor networks (WSNs), the sensor nodes that locate near often sense the similar data, however, transmitting the repeated or redundant data often cause unnecessary energy consumption. Aiming at this point, this paper firstly proposes a gridbased spatial correlation clustering (GSCC) method which clusters the sensor nodes according to data correlation. According to GSCC, in the same cluster...
Cross-correlation methods in combination with electrostatic sensing technology offer a promising solution to the on-line continuous measurement of velocity of particulate solids in pneumatic pipelines. The sampling frequency and integral time are two fundamental parameters in cross-correlation calculation. This paper describes the principles and steps of the selection of these two parameters. The...
Listeners perceptually fuse the direct wave from a sound source with its reflections off nearby surfaces into a single sound image, located at or near the sound source (the precedence effect). This study investigated how a brief gap presented in the middle of either a direct wave or simulated reflection is incorporated into the fused image. For short (<9.5 ms) delays between the direct (leading)...
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