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In this paper, we propose a new temporal coherent face descriptor for video gender recognition. The proposed face descriptor is constructed from detected faces of continuous video frames. Because it describes detected faces under variant changes in continuous video frames and provides a unified feature description, face normalization and alignment processes can be avoided during gender recognition...
Spectrum sensing is considered as the cornerstone of cognitive radio networks (CRNs), Sensing the wide band spectrum, however, may result in delays and reduce the efficiency of resource utilization. Spectrum prediction, therefore, has been proposed as a promising approach to overcome these shortcomings. Prediction of the channel occupancy, when feasible, provides adequate means for an SU to determine,...
Transfer learning targets to leverage knowledge from one domain for tasks in a new domain. It finds abundant applications, such as text/sentiment classification. Many previous works are based on cluster analysis, which assume some common clusters shared by both domains. They mainly focus on the one-to-one cluster correspondence to bridge different domains. However, such a correspondence scheme might...
A COM-based decision tree model was integrated with Geographical Information Systems (GIS) to assess the soil Cu pollution in Fuyang, Zhejiang, China. The integration of the decision tree model with ArcGIS Engine 9.2 using a COM implementation in Microsoft® Visual Basic 6.0 provided an approach for assessing the spatial distribution of soil Cu content with high predictive accuracy. The decision tree...
Wi-Fi ingerprint-based localization is currently the most promising approach to building metropolitan-scale localization systems for both indoor and outdoor environments. A Wi-Fi fingerprint localization system makes use of a radio map that contains Wi-Fi signals received at various locations, and uses the map for location estimation. Thus, the accuracy of a Wi-Fi fingerprint localization system greatly...
A quadrature voltage-controlled oscillator (QVCO) based on the time-varying gate-modulated coupling of two LC tank VCOs is introduced. Using a standard 0.18 mum CMOS process, the new topology is compared to the conventional series QVCO in terms of start-up loop gain, quadrature phase accuracy, phase noise, tuning range, and voltage headroom characteristics. In addition to comparable phase noise performance,...
A large-scale anthropometric database [B. Das and A.K. Sengupta, 1996] was built in Taiwan in the late 1990s and was published in 2002. The procedures for collecting anthropometric data are usually complicated and costly in terms of resources such as workforce, time, and money. According to previous experiences and surveys among the designers and engineers, most practitioners do not know how the old...
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