检索结果-内蒙古大学图书馆

Detecting varieties of cheating: How do people navigate between different cheating ploys?

THINKING & REASONING 2014年第1期20卷 51-76页

作者： Ayal, Shahar Klar, Yechiel Interdisciplinary Ctr IDC Sch Psychol IL-46510 Herzliyya Israel Tel Aviv Univ Dept Psychol IL-69978 Tel Aviv Israel

What kinds of cheating-protection devices should individuals implement to avoid being victims of fraud? Using the Wason selection task as a cheating detection paradigm, we define three types of cheating: Cheating 1 (cost proves to be insufficient for obtaining the benefit), Cheating 2 (cost proves to be unnecessary for obtaining the benefit), and Ambiguous Cheating (type of cheating unclear). In Study 1 participants relied on world knowledge and showed equal sensitivity to both Cheating 1 and 2 by correctly selecting the most relevant threats in these versions. However, no dominant pattern appeared in the Ambiguous Cheating version. In Study 2 participants relied on contextual cues to detect the most relevant threat of cheating (either Cheating 1 or Cheating 2) and the efficacy of their detections increased in versions that included a syntactic manipulation that emphasised the cost-benefit relationship. We argue that efficient cheating detection requires flexibility, world knowledge, expertise, and a thorough understanding of the causal relationship between the cost and the benefit. All of these are essential cognitive tools that can assist people in navigating between different cheating ploys which may be embedded in the same social contract.

关键词： Cheating detection Wason task Deliberate thinking automatic algorithm Relevance theory

来源：评论

学校读者我要写书评

暂无评论

automatic Sleep-Wake Detection using Electrooculogram Signals 3

Automatic Sleep-Wake Detection using Electrooculogram Signal...

引用

IEEE INTERNATIONAL CONFERENCE ON BIOMEDICAL ENGINEERING AND SCIENCES

作者： Malaekah, Emad Patti, Chanakya Reddy Cvetkovic, Dean RMIT Univ Sch Elect & Comp Engn Melbourne Vic Australia

ISBN: (纸本)9781479940844

In this study, we developed an automatic algorithm for sleep-wake detection based on Electrooculography (EOG) in healthy and non-healthy patients. Several features were extracted in time and frequency domains from the EOG signal. The artificial neural network (ANN) was used as a classifier. This pilot study consisted of three aims;the first aim was to utilise only the EOG signal for automatic sleep-wake stage detection. The second objective was to investigate which features were the most effective in detecting the sleep-wake phases in healthy and non-healthy individuals. The third important aim is to investigate which suitable and effective channel can be utilized for detecting the sleep-wake stages. The database was built up using 7 healthy subjects and 9 patients with mixed sleep apnoea, sleep apnoea hypopnea syndrome (SAHS), dyssomnia and periodic limb movements of sleep (PLMS). The inter-rater reliability was 91.3%. The sensitivity and specificity were 84.5% and 91.5%, respectively. Cohen's kappa between visual and automatic algorithm in detection of the sleep-wake stages was 0.74.

关键词： electro-oculography feature extraction frequency-domain analysis medical disorders medical signal detection neural nets sleep time-domain analysis ANN Cohen's kappa EOG signal PLMS SAHS artificial neural network automatic algorithm automatic sleep-wake stage detection classifier dyssomnia effective channel electrooculogram signals electrooculography frequency domains interrater reliability mixed sleep apnoea periodic limb movements of sleep sleep apnoea hypopnea syndrome sleep-wake phases sleep-wake stages suitable channel time domains visual algorithm Accuracy Electrooculography Entropy Feature extraction Reliability Sleep apnea

来源：评论

学校读者我要写书评

暂无评论

An efficient technique for controlling power flow in a single stage grid-connected photovoltaic system

引用

SCIENTIA IRANICA 2014年第3期21卷 885-897页

作者： Datta, A. Bhattacharya, G. Mukherjee, D. Saha, H. Natl Inst Technol Meghalaya Dept Elect & Elect Engn Shillong 793003 Meghalaya India Ramakrishna Mission Vidyamandira Dept Phys Belur Math 711202 Howrah India Bengal Engn & Sci Univ Dept Elect & Telecommun Engn Sibpur 711103 Howrah India Bengal Engn & Sci Univ Ctr Excellence Green Energy & Sensor Syst Sibpur 711103 Howrah India

Compared to multistage grid-connected photovoltaic systems (GCPVSs), complexity in monitoring and controlling scheme in a single-stage GCPVS is much increased, as maximum power point tracking and power sharing with the grid need to be considered simultaneously in the same stage. An efficient technique for performing the aforementioned functions, simultaneously, in a single stage system, by adjustment of the voltage phasor of a voltage source inverter, is presented. Active and reactive powers flow from the inverter is regulated by the adjustment of amplitude and phase angle of the inverter output voltage with respect to the grid voltage. An algorithm is also developed for automatic active and reactive powers sharing for the intended applications in the single stage GCPVSs. A typical 2.8 kWp, 368 V (DC) nominal photovoltaic array based GCPVS is modeled and simulated to analyze proper load matching for different ambient and grid voltage conditions. Performances, like the efficiency of the inverter and the total harmonic distortion of the inverter output voltage and current, are studied, with variations in ambient conditions and the modulation index of a sinusoidal pulse width modulation of the IGBT based inverter. Simulation results have been included to show the feasibility of the proposed technique. (C) 2014 Sharif University of Technology. All rights reserved.

关键词： Single stage Grid-connected PV system Efficient technique Power sharing automatic algorithm

来源：评论

学校读者我要写书评

暂无评论

Performance Test of Automotive Transmission Control Mechanism

Performance Test of Automotive Transmission Control Mechanis...

引用

International Conference on Mechatronics and Industrial Informatics (ICMII 2013)

作者： Liu Ruijun Beihua Univ Jilin Peoples R China

ISBN: (纸本)9783037856949

The right panel drawing direction is an important prerequisite for generating qualified parts, an important step before the panel forming simulation is to determine the reasonable direction of the drawing. Manually adjust parts in order to overcome rely on experience, the drawbacks to the drawing direction, the direction of the drawing punch and forming the contact area of the sheet as the goal of automatic determination algorithm. Objective function of the direction of the drawing for the variable contact area in the drawing direction of the feasible region, the use of heritage algorithms to optimize the objective function of the contact area and, ultimately feasible within the contact area corresponding to the drawing direction, that is the best drawing direction. The measured results show that the direction of the drawing based on genetic algorithm, the automatic algorithm can fast and accurate to obtain the optimal direction of drawing.

关键词： automatic algorithm Automotive Covering Stamping Direction Genetic algorithm

来源：评论

学校读者我要写书评

暂无评论

An automatic algorithm for detecting stent endothelialization from volumetric optical coherence tomography datasets

引用

PHYSICS IN MEDICINE AND BIOLOGY 2008年第12期53卷 3083-3098页

作者： Bonnema, Garret T. Cardinal, Kristen O'Halloran Williams, Stuart K. Barton, Jennifer K. Univ Arizona Coll Opt Sci Tucson AZ 85721 USA Calif Polytechn State Univ San Luis Obispo CA 93407 USA Univ Louisville Cardiovasc Innovat Inst Louisville KY 40292 USA Univ Arizona Tucson AZ USA

crucial to reducing the risk of late stent thrombosis. With a resolution of approximately 10 mu m, optical coherence tomography (OCT) may be an appropriate imaging modality for visualizing the vascular response to a stent and measuring the percentage of struts covered with an anti-thrombogenic cellular lining. We developed an image analysis program to locate covered and uncovered stent struts in OCT images of tissue-engineered blood vessels. The struts were found by exploiting the highly reflective and shadowing characteristics of the metallic stent material. Coverage was evaluated by comparing the luminal surface with the depth of the strut reflection. Strut coverage calculations were compared to manual assessment of OCT images and epi-fluorescence analysis of the stented grafts. Based on the manual assessment, the strut identification algorithm operated with a sensitivity of 93% and a specificity of 99%. The strut coverage algorithm was 81% sensitive and 96% specific. The present study indicates that the program can automatically determine percent cellular coverage from volumetric OCT datasets of blood vessel mimics. The program could potentially be extended to assessments of stent endothelialization in native stented arteries.

关键词： .coverage Stents datasets image analysis cellular lining automatic algorithm detecting stent endothelialization stent struts luminal

来源：评论

学校读者我要写书评

暂无评论

Range-Doppler Domain Signal Processing to Mitigate Wind Turbine Clutter

Range-Doppler Domain Signal Processing to Mitigate Wind Turb...

引用

IEEE Radar Conference (RADAR)

作者： Nai, Feng Palmer, Robert D. Torres, Sebastian M. Univ Oklahoma Atmospher Radar Res Ctr Norman OK 73072 USA

ISBN: (纸本)9781424489022

Wind turbines produce clutter signals that can bias estimates of the spectral moments and polarimetric variables of weather signals. These biases can propagate to and negatively influence the output of automatic algorithms, such as severe weather detection and quantitative precipitation estimates. Moreover, existing ground clutter filters are ineffective at removing wind turbine clutter (WTC) contamination because the moving components of the wind turbine produce clutter signals with non-zero Doppler frequency shifts. As the first step in any mitigation scheme, an automatic WTC detection algorithm is necessary and was recently developed by University of Oklahoma and National Severe Storm Laboratory scientists. After successfully detecting the presence of WTC, the goal is to devise signal processing algorithms that mitigate this contamination so that the weather signal can be recovered and used to estimate the spectral moments and polarimetric variables. However, WTC is inherently non-stationary due to the moving wind turbine blades, which makes frequency-domain-filtering based clutter mitigation methods ineffective. In this work, we propose a new signal processing technique to separate the WTC from the weather signal in the range-Doppler domain. This technique exploits the different spatial and spectral characteristics of WTC and weather signals. Real weather signals and WTC data are used to test the effectiveness of the mitigation scheme.

关键词： Clutter Contamination Doppler radar Logic gates Meteorology Pixel Radar Wind turbines atmospheric precipitation automatic algorithm blades clutter mitigation method contamination filtering theory frequency-domain-filtering geophysical signal processing gr

来源：评论

学校读者我要写书评

暂无评论

automatic Forest Canopy Removal algorithm for Underneath Obscure Target Detection by Airborne LiDAR Point Cloud Data

Automatic Forest Canopy Removal Algorithm for Underneath Obs...

引用

Conference on Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XV

作者： Chang, Li-Der Slatton, K. Clint Anand, Vivek Liu, Pang-Wei Lee, Heezin Campbell, Michael V. Univ Florida Dept Elect & Comp Engn Gainesville FL 32611 USA Univ Florida Dept Civil & Costal Engn Gainesville FL 32611 USA US Army ERDC Topograph Engn Ctr Alexandria VA USA

ISBN: (纸本)9780819481283

The thermal imaging cameras can see the heat signature of people, boats, and vehicles in total darkness as well as through smoke, haze, and light fog, but not through the forest canopy. This study develops a novel algorithm to help detecting obscure targets underneath forest canopy and mitigate the vegetation problem for those bare ground point extraction filters as well. By examining our automatically processed results with actual LiDAR data, the forest canopy is successfully removed where all obscure vehicles or buildings underneath canopy can now be easily seen. Besides, the occluded rate of forest canopy and the detailed underneath x-y point distribution can be easily obtained accordingly. This will be very useful for predicting the performance of occluded target detection with respect to various object locations.

关键词： Forest Canopy Airborne LiDAR automatic algorithm Morphological Filter Occluded Rate Vehicle and Building Digital Terrain Model (DTM) Target Detection

来源：评论

学校读者我要写书评

暂无评论

Seizure Onset Detection based on a Uni- or Multi-modal Intelligent Seizure Acquisition (UISA/MISA) System

Seizure Onset Detection based on a Uni- or Multi-modal Intel...

引用

32nd Annual International Conference of the IEEE Engineering-in-Medicine-and-Biology-Society (EMBC 10)

作者： Conradsen, Isa Beniczky, Sandor Wolf, Peter Henriksen, Jonas Sams, Thomas Sorensen, Helge B. D. DTU Elect Engn Bldg 349 DK-2800 Lyngby Denmark Danish Epilepsy Ctr DK-4293 Dianalund Denmark

ISBN: (纸本)9781424441242

An automatic Uni- or Multi-modal Inteligent Seizure Acquisition (UISA/MISA) system is highly applicable for onset detection of epileptic seizures based on motion data. The modalities used are surface electromyography (sEMG), acceleration (ACC) and angular velocity (ANG). The new proposed automatic algorithm on motion data is extracting features as "log-sum" measures of discrete wavelet components. Classification into the two groups "seizure" versus "non-seizure" is made based on the support vector machine (SVM) algorithm. The algorithm performs with a sensitivity of 91-100%, a median latency of 1 second and a specificity of 100% on multi-modal data from five healthy subjects simulating seizures. The uni-modal algorithm based on sEMG data from the subjects and patients performs satisfactorily in some cases. As expected, our results clearly show superiority of the multi-modal approach, as compared with the uni-modal one.

关键词： MISA system SVM algorithm UISA system acceleration measurement acceleration measurement angular velocity measurement angular velocity measurement automatic algorithm biomechanics data acquisition discrete wavelet components discrete wavelet transforms diseases electromyography epileptic seizure onset detection feature extraction feature extraction log sum measures medical signal detection medical signal processing motion data multimodal intelligent seizure acquisition system neurophysiology sEMG support vector machine support vector machines surface electromyography unimodal intelligent seizure acquisition system

来源：评论

学校读者我要写书评

暂无评论

An automatic algorithm for equivalent circuit extraction from noisy frequency responses

An automatic algorithm for equivalent circuit extraction fro...

引用

IEEE International Symposium on Electromagnetic Compatibility

作者： Grivet-Talocia, S Bandinu, M Canavero, FG Politecn Torino Dipartimento Elettr I-10129 Turin Italy

ISBN: (纸本)0780393805

This paper presents a fully automatic algorithm for the extraction of equivalent circuits from noisy frequency responses. The application area involves the generation of SPICE-ready macromodels for critical interconnects for Signal Integrity chatacterizations. Direct measurements are often employed to obtain a characterization of a given interconnect structure, leading to its frequency-dependent scattering responses. The proposed technique processes these responses and outputs an equivalent circuit. The algorithm is based on a modification of the well-known Vector Fitting scheme, which has now become a standard tool in EMC and SI studies. The presented improvements focus on robustness to noise, which is always present in measured data, and on automatic order estimation. These issues are addressed via an automatic detection of any spurious poles due to the noise, which are hard relocated in order to maximize the model accuracy. Several application examples are presented to illustrate the excellent capabilities of the new fitting scheme.

关键词： SPICE electromagnetic compatibility equivalent circuits frequency response interconnections EMC SPICE-ready macromodels automatic algorithm automatic order estimation equivalent circuit extraction frequency-dependent scattering responses noisy frequency

来源：评论

学校读者我要写书评

暂无评论

Using an automated emboli detection device in a porcine cardiopulmonary bypass (CPB) model:: Feasibility and considerations

引用

SCANDINAVIAN CARDIOVASCULAR JOURNAL 2007年第6期41卷 411-415页

作者： Schnuerer, Christian Gyoeri, Georg Hager, Martina Jeller, Anton Moser, Patrizia L. Velik-Salchner, Corinna Laufer, Guenther Lorenz, Ingo H. Kolbitsch, Christian Innsbruck Med Univ Dept Cardiac Surg Innsbruck Austria Innsbruck Med Univ Dept Anaesthesia & Intens Care Med Innsbruck Austria Innsbruck Med Univ Dept Pathol Innsbruck Austria

The significant risk of cerebral embolism during cardiopulmonary bypass (CPB) makes monitoring of embolic events advisable already when developing new operation and coagulation management strategies for example in CPB animal models. The present study therefore evaluated in a porcine CPB model the feasibility of bilateral epicarotid Doppler signal recording and the quality of manual or automatic emboli detection. A total of 42 recordings (e.g. right carotid artery (n = 20), left carotid artery (n = 22)) were evaluated. The frequency of emboli counts was comparable for both carotid arteries. automatic emboli detection, however, found significantly more embolic events per pig than did post-hoc manual off-line analysis of the recordings (172 +/- 217 vs. 13 +/- 10). None of the brains, however, showed any emboli or infarction area either in cross-examination or in histological evaluation. In conclusion, the present study showed the feasibility of using an epicarotid Doppler device for bilateral emboli detection in a porcine CPB model. automatic on-line emboli detection, however, reported more embolic events than did post hoc, off-line manual analysis. Possible reasons for this discrepancy are discussed.

关键词： emboli detection automatic algorithm manual porcine cardiopulmonary bypass (CPB) model

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：