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Medical image retrieval with query-dependent feature fusion based on one-class SVM

Medical image retrieval with query-dependent feature fusion ...

引用

International Conference on Computational Science and engineering

作者： Huang, Yonggang Zhang, Jun Zhao, Yongwang Ma, Dianfu Institute of Advanced Computing Technology BeiHang University China National Lab. of Software Development Environment BeiHang University China School of Computer Science and Software Engineering University of Wollongong Australia

ISBN: (纸本)9780769543239

Due to the huge growth of the World Wide Web, medical images are now available in large numbers in online repositories, and there exists the need to retrieval the images through automatically extracting visual information of the medical images, which is commonly known as content-based image retrieval (CBIR). Since each feature extracted from images just characterizes certain aspect of image content, multiple features are necessarily employed to improve the retrieval performance. Meanwhile, experiments demonstrate that a special feature is not equally important for different image queries. Most of existed feature fusion methods for image retrieval only utilize query independent feature fusion or rely on explicit user weighting. In this paper, we present a novel query dependent feature fusion method for medical image retrieval based on one class support vector machine. Having considered that a special feature is not equally important for different image queries, the proposed query dependent feature fusion method can learn different feature fusion models for different image queries only based on multiply image samples provided by the user, and the learned feature fusion models can reflect the different importances of a special feature for different image queries. The experimental results on the IRMA medical image collection demonstrate that the proposed method can improve the retrieval performance effectively and can outperform existed feature fusion methods for image retrieval. © 2010 IEEE.

关键词： Support vector machines

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The decision-maker: An intelligent platform for military applications

The decision-maker: An intelligent platform for military app...

引用

1992 Singapore International Conference on Intelligent Control and Instrumentation

作者： Chung, Jain-Shone Chen, Jiann-Liang Dept. of System Engineering Chung Cheng Institute of Technology Tao-Yuan Taiwan Advanced Technology Center Computer and Communication Research Lab. Industrial Technology Research Institute Taiwan

ISBN: (纸本)0780306325

A distributed problem-solving platform(DPSP) is proposed to handle the Anti-Air Warfare(AAW) problem in this paper. And the DPSP is utilized to assist a commander for making decisions. This can be expressed as follows: (1)disposition of air defense ships (2)air defense performance evaluation (3)threat evaluation (4)effective weapons allocation against threat. The developed DPSP is based on blackboard systems which provide a more open problem-solving approach than expert systems. And the system is a group of knowledge modules collaborating with each other by way of a shared database to reach a solution of the field management in AAW. In addition, a two-level control mechanism composed of meta-control and local-control is also designed to achieve the high degree of goodness in AAW problems. Results from the implementation of DPSP in AAW indicate that the platform assists a commander to make appropriate decisions such that the fleet air defense can be strengthened. © 1992 by IEEE Singapore Section.

关键词： Decision making

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ExpoEv: Enhancing Social Recommendation Service with Social Exposure and Feature Evolution

ExpoEv: Enhancing Social Recommendation Service with Social ...

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2023 IEEE International Conference on Web Services, ICWS 2023

作者： Ma, Li Zheng, Zuowu Huang, Xiuqi Zhang, Zhaoxiang Gao, Xiaofeng Guo, Jianxiong Chen, Guihai Shanghai Jiao Tong University MoE Key Lab of Artificial Intelligence Department of Computer Science and Engineering Shanghai China Advanced Institute of Natural Sciences Beijing Normal University Zhuhai China

ISBN: (纸本)9798350304855

Social networks are widely recognized as highly effective information sources for social recommendation services. However, previous social recommendation methods assumed that a user's preference factor and social trust factor shared a common latent feature space. Additionally, few studies have explored the incorporation of social information into the item domain for recommendations. To address these gaps, we propose ExpoEv, a deep collaborative filtering recommendation model that integrates social exposure based on feature evolution for social recommendation services. Specifically, we propose a social exposure module for both user and item domains that considers the number of items that a user's social friends interact with. Furthermore, we introduce a feature evolution component that enables the incorporation of social exposure information with social trust and attribute factors in the context of social recommendation services. Experiments demonstrate the effectiveness of our model in the quality of recommendation service. © 2023 IEEE.

关键词： Quality of service

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BLAST: Battery lifetime-constrained adaptation with selected target in mobile devices 12

BLAST: Battery lifetime-constrained adaptation with selected...

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12th International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services, MOBIQUITOUS 2015

作者： Mercati, Pietro Hanumaiah, Vinay Kulkarni, Jitendra Bloch, Simon Rosing, Tajana Computer Science Department UC San Diego San DiegoCA United States Advanced Systems Engineering Lab. Samsung Research America Mountain ViewCA United States

ISBN: (纸本)9781631900723

Mobile devices today contain many power hungry subsystems and execute different applications. Standard power management is not aware of the desired battery lifetime and has no visibility into which applications are executing. However, power consumption is strongly dependent on which applications are executed. In this work, we propose a novel power characterization strategy for mobile devices called application-dependent power states (AP-STATES). Based on that, we formulate a management problem to improve performance under battery lifetime constraints, and we implement the management framework on a real Android device. We call our framework BLAST: Battery Lifetime-constrained Adaptation with Selected Target. The goal of such framework is to maximize performance while letting the device battery to last at least for a certain required lifetime, and only requires the user to select the desired target lifetime. The implementation does not require OS modifications and can be ported and installed to any Android device. We experimentally verify that our strategy can still meets user experience requirements with a selected target battery lifetime extension of at least 25%. Copyright © 2015 ICST.

关键词： Android (operating system)

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Improved H.264 GOP-level bit allocation by incremental PID algorithm

Improved H.264 GOP-level bit allocation by incremental PID a...

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IET Conference on Wireless, Mobile and Sensor Networks 2007, CCWMSN'07

作者： Shen, Liquan Zhang, Zhaoyang Li, Ying Liu, Zhi Key Lab. of Advanced Display and System Application Ministry of Education Shanghai Univ. Shanghai 200072 China School of Computer Engineering and Science Shanghai University Shanghai 200072 China

ISBN: (纸本)9780863418365

Since the current rate control schemes in H.264 do not present the capability of efficient GOP-level bit allocation, the video quality varies greatly for sequences with the scene change or the scene complexity varying from one GOP to another. To overcome the limitation, we propose a novel rate control scheme based on incremental PID algorithm. The incremental PID algorithm is introduced to minimize video quality variations in GOP-level bit allocation. Extensive simulation results show that the proposed rate control scheme, without expensive computational complexity added, decreases the average video quality variations by 15.07%.

关键词： Quality control

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ALII: An information integration environment based on the active logic framework

ALII: An information integration environment based on the ac...

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Third International Conference on Management Information Systems Incorporating GIS and Remote Sensing, MIS 2002

作者： Barfourosh, A.A. Mothary Nezhad, H.R. O'Donovan-Anderson, M. Perlis, D. Intelligent Systems Lab. Computer Engineering Dept. Amir Kabir University of Technology Iran Inst. for Advanced Computer Studies University of Maryland College Park MD United States Department of Computer Science University of Maryland College Park MD United States

ISBN: (纸本)1853129070

There is growing interest in accessing, relating, and combining data from multiple sources on the Web. Today, web users access the web through two dominant interfaces: clicking on hyperlinks (browsing) and searching via keyword queries (crawling). This process is often time-consuming and unsatisfactory because of the many inaccurate and irrelevant results that are returned. Better support is needed for expressing one's information requirements and dealing in more structured and systematic ways with one's search results. This paper presents ALII, our proposal for providing this support. ALII is an Active Logic based framework for Information integration, which can utilize a compact context representation and constructs a hierarchy model of query and web pages. The ALII project aims developing methods and tools for a model based, semantic integration of information sources on web pages.

关键词： Management information systems

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Vertical electromagnetic bandgap structure for noise suppression in single-ended and differential signaling on a multi-layer backplane board

Vertical electromagnetic bandgap structure for noise suppres...

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20th International Zurich Symposium on Electromagnetic Compatibility, EMC Zurich 2009

作者： Chulsoon, Hwang Jongbae, Park Jaemin, Kim Kyoungchoul, Koo Joungho, Kim Terahertz Interconnection and Package Lab. School of Electrical Engineering and Computer Science Korea Advanced Institute of Science and Technology 371-1 Guseong Yuseong Daejeon 305-701 Korea Republic of

ISBN: (纸本)9783952328668

Signal via transition is inevitable in backplane multi-layer board for high density routing. And a significant simultaneous switching noise (SSN) coupling to a signal occurs through the signal via transition. In this paper, we present suppression method of the SSN noise coupling caused by via transition in multi-layer backplane board using electromagnetic bandgap (EBG) structure. EBG structures are vertically located around a signal via to provide the low power/ground impedance area. The low power/ground impedance area suppresses the noise propagation and reduces the SSN noise coupling. It is shown that, within the stopband, the power/ground impedance at the position of the signal via with EBG structures is free from the power/ground planes cavity resonance, and the SSN coupling in single-ended and differential signaling is suppressed.

关键词： Energy gap

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A Trade-Off Study Between the Primary and Transient Responses of Grid-Forming Inverters 50

A Trade-Off Study Between the Primary and Transient Response...

引用

50th Annual Conference of the IEEE Industrial Electronics Society, IECON 2024

作者： Lin, Xuheng Huang, Xiaoge Zhang, Ziang Pourramezan, Reza Department of Electrical and Computer Engineering Binghamton University SUNY BinghamtonNY United States Advanced Grid Innovation Lab for Energy New York Power Authority AlbanyNY United States

ISBN: (纸本)9781665464543

The control parameters of the grid-forming (GFM) inverter-based resources (IBRs) directly impact power system dynamics. The primary control requires the GFM inverter to balance generation and load. It is also preferred that a GFM inverter maintain the terminal frequency after a power system fault. In this paper, we investigate the trade-off between the primary control objective and the transient response. To quantify the transient performance of the GFM inverter, we introduce a new real-time transient stability index (TSI). This index plays a crucial role in our investigation, as it allows us to compare the performance trade-offs of different sets of GFM control parameters. © 2024 IEEE.

关键词： Electromagnetic transients

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A thread-based electrochemical sensor for spatial monitoring of wound oxygenation 24

A thread-based electrochemical sensor for spatial monitoring...

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24th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2020

作者： Xia, Junfei Zeng, Wenxin Wang, Wei Owyeung, Rachel Arsenescu, Victor Sonkusale, Sameer Department of Electrical and Computer Engineering Tufts University United States Nano Lab Advanced Technology Laboratory Tufts University United States Department of Chemical and Biological Engineering Tufts University United States Department of Biomedical Engineering Tufts University United States

ISBN: (纸本)9781733419017

Continuous monitoring of wound oxygenation plays a pivotal role in acute and chronic wound management. Current oxygen sensors are not able to measure oxygen levels deep inside the wound. In this study we develop a flexible thread-based oxygen sensor that combines the unique advantages of minimal invasiveness, superior flexibility and amenable for tissue integration. The sensor is featured by a simple and low-cost fabrication approach which allows for 'sensing at the tip' to probe geometrically complex wound bed in three dimensions with high spatial accuracy and high sensitivity. © 2020 CBMS-0001

关键词： Oxygenation

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Accuracy-Guaranteed Event Detection via Collaborative Mobile Crowdsensing with Unreliable Users 15th

Accuracy-Guaranteed Event Detection via Collaborative Mobile...

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15th EAI International Conference on Collaborative Computing: Networking, Applications and Worksharing, CollaborateCom 2019

作者： Liu, Tong Wu, Wenbin Zhu, Yanmin Tong, Weiqin School of Computer Engineering and Science Shanghai University Shanghai China Shanghai Institute for Advanced Communication and Data Science Shanghai University Shanghai China Department of Computer Science and Engineering Shanghai Jiao Tong University Shanghai China Shanghai Key Lab of Scalable Computing and Systems Shanghai China

ISBN: (纸本)9783030301453

Recently, mobile crowdsensing has become a promising paradigm to collect rich spatial sensing data, by taking advantage of widely distributed sensing devices like smartphones. Based on sensing data, event detection can be conducted in urban areas, to monitor abnormal incidents like traffic jam. However, how to guarantee the detection accuracy is still an open issue, especially when unreliable users who may report wrong observations are considered. In this work, we focus on the problem of user recruitment in collaborative mobile crowdsensing, aiming to optimize the fine-grained detection accuracy in a large urban area. Unfortunately, the problem is proved to be NP-hard, which means there is no polynomial-time algorithm to achieve the optimal solution unless P NP. To meet the challenge, we first employ a probabilistic model to characterize the unreliability of users, and measure the uncertainty of inferring event occurrences given collected observations by Shannon entropy. Then, by leveraging the properties of adaptive monotonicity and adaptive submodularity, we propose an adaptive greedy algorithm for user recruitment, which is theoretically proved to achieve a constant approximation ratio guarantee. Extensive simulations are conducted, which show our proposed algorithm outperforms baselines under different settings. © 2019, ICST Institute for computer Sciences, Social Informatics and Telecommunications engineering.

关键词： Polynomial approximation

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