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Modelling teens clothing fashion preferences using machine learning

WSEAS Transactions on Information Science and Applications 2006年第10期3卷 2054-2065页

作者： Kokol, Peter Verlič, Mateja Križmarić, Miljenko Laboratory for System Design Faculty of Electrical Engineering and Computer Science University of Maribor Slovenia Smetanova 17 2000 Maribor Slovenia College of Nursing Studies University of Maribor Zitna 15 2000 Maribor Slovenia

Fashion is one of the most visible media of the change in modern society. It reflects the change in aesthetic, economic, political, cultural and social life. Individuals and society use fashion to communicate their taste and lifestyle, teens for example employing different clothing styles. On the individual there are two basic forces involved namely the 'differentiating force" and the "socialising force". Those two forces are central in an individual's self - negotiation between the need for exhibiting and the need to conform to the social norms and are expressed in personal fashion styles. The aim of this paper is to model this expression on the case of teens, more precisely to model clothing fashion preferences of teens employing machine learning techniques.

关键词： Learning systems

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Memetic ant colony optimization for band selection of hyperspectral imagery classification

Memetic ant colony optimization for band selection of hypers...

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Chinese Conference on Pattern Recognition

作者： Zhu, Zexuan Ji, Zhen Jia, Sen Shenzhen City Key Laboratory of Embedded System Design College of Computer Science and Software Engineering Shenzhen University Shenzhen 518060 China

ISBN: (纸本)9781424472109

This paper proposes a novel memetic ant colony optimization (MACO) algorithm for band selection on hyperspectral imagery classification. The method incorporates filter method based local search and ant colony optimization (ACO) based global search to take advantage of both. Particularly, the local search fine-tunes the paths explored by the ants by adding the relevant bands and eliminating irrelevant/redundant ones. A comparison study to the filters methods (including Gain Ratio, ReliefF, AP based method, and FCBF) and the counterpart wrapper ACO feature selection on four hyperspectral imagery datasets demonstrates that MACO is capable of attaining competitive or better classification accuracy with fewer selected bands. The empirical results suggest that MACO is effective and efficient in identifying relevant bands while eliminating irrelevant/redundant ones. ©2010 IEEE.

关键词： Ant colony optimization

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An offset-free 10 MHz limiting amplifier designed for a 5.8 GHz ETC receiver

An offset-free 10 MHz limiting amplifier designed for a 5.8 ...

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6th International ICST Conference on Wireless Internet, WICON 2011

作者： Jiang, Lai Yu, Hang Wei, Rongchen Li, Yan Lin, Shengyue Ji, Zhen Shenzhen City Key Laboratory of Embedded System Design College of Computer Science and Software Engineering Shenzhen University 518060 Shenzhen China

ISBN: (纸本)9783642304927

Electronic tolling collection (ETC) system will be largely adopted in the next generation of Chinese highway network, and its operating frequency is specified to be 5.8 GHz. A limiting amplifier designed for the 5.8 GHz receiver of the ETC system is presented in this work. AC-coupled gain stage was realized to avoid additional offset cancellation mechanism. The trade-off between the small signal gain, number of stages, gain-bandwidth product, and power dissipation was studied by systematic analysis. Implemented using a standard CMOS 0.18 μm process, the simulation results show that the limiting amplifier achieves overall small signal gain of 81 dB, with 20 MHz bandwidth. © 2012 ICST Institute for computer Science, Social Informatics and Telecommunications engineering.

关键词： Bandwidth

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A tunable CMOS continuous-time filter designed for a 5.8 GHz ETC demodulator

A tunable CMOS continuous-time filter designed for a 5.8 GHz...

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6th International ICST Conference on Wireless Internet, WICON 2011

作者： Yu, Hang Jiang, Lai Lin, Shengyue Li, Yan Wei, Rongchen Ji, Zhen Shenzhen City Key Laboratory of Embedded System Design College of Computer Science and Software Engineering Shenzhen University 518060 Shenzhen China

ISBN: (纸本)9783642304927

5.8 GHz is specified as the operating frequency of the electronic tolling collection (ETC) system in the new national highway network in China. A low power, robust radio frequency receiver is the key design challenge in such a system. A 3rd order butterworth low-pass filter with tunable pass-band designed for the ETC receiver was presented in this work. The design is based on a single operational amplifier in order to reduce the overall power consumption. The filter was implemented in standard CMOS 0.18 μm technology. Simulation shows that the design achieves a maximum 3-dB bandwidth of 2 MHz with 0 dB insertion loss, while the power consumption is only ∼200μW. © 2012 ICST Institute for computer Science, Social Informatics and Telecommunications engineering.

关键词： Operational amplifiers

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Modeling, characterizing, and enhancing user experience in cloud mobile rendering

Modeling, characterizing, and enhancing user experience in c...

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2012 International Conference on Computing, Networking and Communications, ICNC'12

作者： Liu, Yao Wang, Shaoxuan Dey, Sujit Mobile System Design Lab. Dept. of Electrical and Computer Engineering University of California San Diego CA United States

ISBN: (纸本)9781467300094

Cloud Mobile Rendering (CMR), where compute intensive rendering is performed on cloud servers instead of on mobile devices, can be a promising approach to enable rich rendering based multimedia applications on battery and CPU constrained mobile devices. However, since the video rendered in the cloud has to be transmitted to the mobile device over a wireless network with fluctuating and constrained bandwidth, the resulting user experience can be impacted. In [9], an adaptive rendering approach was proposed, wherein multiple rendering factors can be adapted such that the bit rate of the encoded rendered video is compatible with the available network bandwidth. However, changing the rendering factors may itself have adverse impact on user experience, which has not been studied earlier. In this paper, we analyze the impairment of rendering factors on the quality of user experience, and combine the rendering impairments with impairments due to video encoding factors (like bit rate and frame rate) and network factors (like bandwidth and delay) to formulate a model to measure the user experience during a Cloud Mobile Rendering session. We term this model CMR-UE in this paper. We describe our method to derive the CMR-UE model, and demonstrate its accuracy through subjective testing using participants at UCSD. We use the CMR-UE model to study the trade-off between the impact of rendering and video encoding factors on user experience, and find the optimal rendering settings that maximize CMR-UE for any given network condition. Next, we use the CMR-UE model to measure user experience during CMR sessions on a live cellular network. We demonstrate how user experience can be significantly enhanced by using appropriate rendering settings under fluctuating network bandwidth conditions. © 2012 IEEE.

关键词： Encoding (symbols)

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design of a predictor for MD5 based cryptographic systems: A TVAC-PSO based approach

Design of a predictor for MD5 based cryptographic systems: A...

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2011 International Conference on Artificial Intelligence, ICAI 2011

作者： Ray, Sonai Alam, Monjur Ray, Samrat Mollah, Ayatullah Faruk R and D Division Cadence Design System Noida India Dept. of Computer Science and Engineering Jadavpur University Kolkata India

ISBN: (纸本)9781601321855

This paper puts forward an efficient and optimized method to determine the probable-colluders in a MD5 based cryptosystem. Along with the conventional MD5 implementing architecture, our scheme employs a predictor control block which takes the message stream from the user, and provides the log-list of the equal length bit-streams that are most likely to produce collisions with the message stream in a real time system. The predictor controller uses Time varying Acceleration Coefficient Particle Swarm optimization (TVAC-PSO) algorithm. Besides proposing the algorithm itself the paper also surveys the performance of the predictor when employed with different hardware platforms.

关键词： Real time systems

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A low-IF 2.4 GHz integrated RF receiver for Bluetooth applications

A low-IF 2.4 GHz integrated RF receiver for Bluetooth applic...

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3rd International Conference on Intelligent Structure and Vibration Control, ISVC 2013

作者： Jiang, Lai Liu, Shao Hua Yu, Hang Li, Yan Shenzhen City Key Laboratory of Embedded System Design College of Computer Science and Software Engineering Shenzhen University Shenzhen Guangdong China

ISBN: (纸本)9783037857236

In this paper, a low-IF 2.4 GHz integrated RF receiver for Bluetooth is presented. designed in a 0.18 μm CMOS technology, the receiver consists of LNA, mixer, complex band-pass filter, and GFSK demodulator. A received signal strength indicator is also employed in the receiver to auto adjust the receiver gain. In this paper, the structures of the major modules were analyzed, and the simulation results are presented and discussed. © (2013) Trans Tech Publications, Switzerland.

关键词： Bluetooth

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A Novel Wideband CPW-Fed 5.8GHz RFID Tag Antenna

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电子学报(英文版) 2012年第2期21卷 202-208页

作者： LI Huihui MOU Xuanqin JI Zhen YU Hang LI Yan Institute of Image Processing and Pattern Recognition Xi'an Jiaotong University Xi'an 710049 China College of Computer Science and Software Engineering Shenzhen University Shenzhen 518060 China Shenzhen Key Laboratory of Embedded System Design Shenzhen 518060 China

A novel wideband 5.8GHz CPW-fed an- tenna is presented for Radio frequency identification (RFID) tag. Four U-shaped and four L-shaped branches are used as additional resonators to achieve wideband operation. The proposed antenna was analyzed numeri- cally using the Method of moment (MOM) and the Fi- nite element method (FEM). With the antenna size lim- ited to 30 × 30mm2, the ?10dB bandwidth obtained by MOM is 3.235GHz (5.765～9GHz) and the ?9.5dB band- width obtained by FEM is 2.74GHz (5.32～8.06GHz), cor- responding to 55.7% and 47.2% of the center frequency 5.8GHz respectively. Moreover, the simulated results show that the proposed antenna has gain of more than 4.8dBi and the radiation pattern is nearly omnidirectional in the H-plane. The measured ?10dB bandwidth is 2.68GHz (5.63GHz～8.31GHz), 46.2% of the 5.8GHz frequency. Fur- thermore, there are three measured resonant frequencies at 1.34GHz, 3.23GHz and 5.8GHz with lower than ?10dB return loss respectively. The measurement result achieves a wideband RFID tag antenna performance and is in good agreement with the calculated results.

关键词： RFID标签天线尺寸共面波导宽带无线电频率识别有限元分析网络连接数值分析

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A 31μ W ASK clock and data recovery circuit for wireless implantable systems

A 31μ W ASK clock and data recovery circuit for wireless im...

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18th International Symposium on Intelligent Signal Processing and Communication systems, ISPACS 2010

作者： Yu, Hang Li, Yan Jiang, Lai Ji, Zhen Shenzhen City Key Laboratory of Embedded System Design Shenzhen University China College of Computer Science and Software Engineering Shenzhen University China

ISBN: (纸本)9781424473717

Amplitude shift keying (ASK) and pulse position modulation (PPM) can be used to provide self-synchronized data and clock for wireless implantable neural recoding systems, and therefore simplifies the complexity of the implanted circuits. In this paper, a novel extremely low power receiver designed for such a scheme is discussed. The integrated receiver utilizes inductive load implemented by PMOS device to boost the voltage gain of the front end amplifier. A charge-pump based CDR circuit is utilized to extract the clock and non-retumto-zero (NRZ) data directly from the demodulated waveform, and the required reference voltage is adaptively generated to cover a large data rate range. The receiver design is validated using 0.25 μ m CMOS technology. It exhibits a sensitivity of ∼lmV at 1.5MHz, covers an input data rate between 7kbitls and 45.5kbit/s, and consumes only ∼3 1μ W of power. © 2010 IEEE.

关键词： Amplitude shift keying

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Proposal of GPU-based implementation of personal values-based collaborative filtering including validation process 7

Proposal of GPU-based implementation of personal values-base...

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7th International Symposium on Computational Intelligence and Industrial Applications, ISCIIA 2016

作者： Chen, Wei-Fan Chen, Yu-Sheng Misawa, Ryori Chen, Lieu-Hen Takama, Yasufumi Graduate School of System Design Tokyo Metropolitan University Japan Department of Computer Science and Information Engineering National Chi Nan University Taiwan

ISBN: (纸本)9784990534349

This paper proposes GPU-based implementation of the personal values-based user model recommender system for improving its computation efficiency. The personal values-based user model has been proposed for recommender systems, which identifies the attributes on which a user puts high priority when evaluating an item. Its effectiveness has been shown by applying it to content-based recommender systems. Although collaborative filtering based on personal values (personal values-based collaborative filtering) is also being studied, evaluation by offline experiment with large datasets and various parameter settings requires high computational cost. Therefore, this paper proposes to implement the personal values-based collaborative filtering using CUDA for speeding up the offline experiment. This paper describes overall structure of the personal values-based collaborative filtering including leave-one-out cross validation process, and conducts an experiment using 4travel and Rakuten Travel datasets. The result shows the efficiency of the proposed method improves with the size of rating table and the number of ratings. This paper also discusses several characteristics observed in the experiment. © 2016, Fuji Technology Press. All rights reserved.

关键词： Recommender systems

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