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The reasonable evaluation of forestry land is the basis of marketization of the forestry assets. Based on the evaluation data for 325 forestry lands from seven forest farms of Ning'an city, which is intended to transfer in the country, this paper takes Larch, mongolian scots pine and larch-mongolian mixed forests as instances to establish CHAID decision tree model in order to classify and analyze...
Detecting the point in time where a dynamic fitness landscape changes is vital for a considerable number of diversity management schemes that used in evolutionary algorithms employed for solving dynamic optimization problems. Here, we introduce a change detector based on principles of artificial immune systems, namely a negative selection algorithm. We show in numerical experiments that such an immunological...
This paper proposes a frontal staircase detection algorithm using both classical Haar-like features and a novel set of PCA-base Haar-like features. Real AdaBoost is used for training a cascaded classifier. The PCA-based Haar-like features are extremely efficient at rejecting background regions at early stages in the cascade. A specifically designed scanning scheme made the algorithm constantly time...
This paper presents a user-friendly interface in Matlab??, called BioSigBrowser, that aims to facilitate the use of algorithms in biomedical signal processing. It includes methods related with cardiovascular signal processing, namely some multimodal analysis. This platform can treat a single signal or work in a batch mode on a given database as is usual in research. Furthermore, its modular characteristic...
Magnetic recording systems employ conventional timing recovery to synchronize the sampler with the readback signal. However, conventional timing recovery does not perform well when the timing error is large. This paper proposes the bidirectional timing recovery, which utilizes conventional timing recovery to sample the readback signal both in forward direction and in backward direction. The outputs...
Truncated data problems are encountered in computed tomographic (CT) scanning scenarios where it is desirable to restrict the radiation dosage to a region-of-interest (ROI) of the object cross-section being imaged. In this paper, we propose a new image reconstruction technique for handling truncated data based on projection data extrapolation using a non-stationary time-series modeling approach. A...
Linear and planar arrays have been demonstrated to be effective in interferometric imaging and sensing of one-dimensional and two-dimensional objects. A planar spiral array was used for sensing sources or objects located on a plane parallel to the array plane. This paper shows that by using a three-dimensional array, it is possible to detect differences in distances and thus detect three dimensional...
Local descriptors have been extensively used in CBIR systems, where their robustness to intense geometric and photometric transformations allows the identification of a target object/image with great reliability. However, due to their excessive discriminating power, their application to the retrieval of complex categories is challenging. The introduction of the technique of visual dictionaries (also...
This paper presents a novel methodology to perform matching between image points described by their respective features. Traditionally, such correspondences are determined by computing the similarity between descriptor vectors associated to each point which are obtained by invariant descriptors. Our methodology first obtains a coarse global registration among images, which constrains the correspondence...
The recognition of human actions from videos has several interesting and important applications, and a vast amount of different approaches has been proposed for this task in different settings. Such approaches can be broadly categorized in model-based and model-free. Typically, model-based approaches work only in very constrained settings, and because of that, a number of model-free approaches appeared...
This paper addresses robust linear dimensionality reduction (RLDR) for binary Gaussian hypothesis testing. The goal is to find a linear map from the high dimensional space where the data vector lives to a low dimensional space where the hypothesis test is carried out. The linear map is designed to maximize the detector performance. This translates into maximizing the Kullback-Leibler (KL) distance...
We consider the digital fingerprinting problem where colluders apply uniform linear averaging followed by AWGN. For each user, the receiver computes the correlation between the attacked signal and that user's fingerprint, and performs thresholding (focused detection). We model the fingerprinting problem as a multi-user communications problem and develop a detection theoretic framework. Assuming independent...
This paper analyzes the effect of replay attacks on a control system. We assume an attacker wishes to disrupt the operation of a control system in steady state. In order to inject an exogenous control input without being detected the attacker will hijack the sensors, observe and record their readings for a certain amount of time and repeat them afterwards while carrying out his attack. This is a very...
A V-band radio demodulator architecture based on a six port receiver MMIC is presented. The six port is designed to cover the entire frequency band allocation for the forthcoming 57-65 GHz broadband wireless communication system and permits homodyne or heterodyne detection of QPSK/QAM signals.
The measurement of cell proliferation and cell viability has become a key technology in the life sciences. The need for sensitive, reliable, fast and easy methods has led to the development of several standard assays. These include the determination of DNA synthesis by measuring the amount of radioactive labeled nucleosides like [3H]-thymidine incorporated in nucleic acid. Alternatively several tetrazolium...
We describe the integration of p-i-n structures for single-ion implant detection with p-type channel-stop regions to eliminate parasitic leakage currents in n-MOS structures while maintaining a single-ion detection capability. The structures are configured for the assembly of a metal-oxide-semiconductor (MOS) spin-qubit architecture based on phosphorus donors in silicon. The detection method is based...
The immense growth of wireless network makes it prone to number of security threats. Most prevalent among them are spoof threats, in which one network device changes its network identifiers to that of another network device. One of the possible reasons of spoofing in wireless network is that per-frame source authentication is not provided. Full scale authentication can be provided, but it is not always...
This paper present the design scheme of a phase frequency detector (PFD) which uses domino logic. The PFD is capable of working in gigahertz range frequency with reduced the dead zone as the reset path is increased using the inverters. The linear detection range is also increased of this PFD. In particular maximum operating frequency of PFD is discussed. The proposed PFD has simple structure with...
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