检索结果-内蒙古大学图书馆

International Conference on Technologies and Applications of Artificial Intelligence (TAAI)

作者： Guo-Cheng Lan Tzung-Pei Hong Vincent S. Tseng Department of Computer Science and Information Engineering National Cheng Kung University Taiwan Department of Computer Science and Information Engineering National University of Kaohsiung Taiwan Department of Computer Science and Information Engineering National Sun Yat-sen University Taiwan Institute of Medical Informatics National Cheng Kung University Taiwan

In this paper, we propose an efficient mining approach which adopts an indexing mechanism to speed up the execution efficiency and reduce the memory requirement in the utility mining process. Besides, a pruning strategy is designed to reduce the number of unpromising itemsets for mining. The experimental results also show the performance of the proposed approach is better than that of traditional two-phase utility mining algorithm under different parameters.

关键词： Itemsets Data mining Algorithm design and analysis Indexing

来源：评论

学校读者我要写书评

暂无评论

A closed-loop brain computer interface for real-time seizure detection and control

A closed-loop brain computer interface for real-time seizure...

引用

Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： Sheng-Fu Liang Fu-Zen Shaw Chung-Ping Young Da-Wei Chang Yi-Cheng Liao Department of Computer Science and Information Engineering & the Institute of Medical Informatics National Cheng Kung University Tainan County Taiwan Institute of Cognitive Science National Cheng Kung University Tainan County Taiwan Department of Computer Science and Information Engineering National Cheng Kung University Tainan County Taiwan

The worldwide prevalence of epilepsy is approximately 1%, and 25% of epilepsy patients cannot be treated sufficiently by available therapies. Brain stimulation with closed-loop seizure control has recently been proposed as an innovative and effective alternative. In this paper, a portable closed-loop brain computer interface for seizure control was developed and shown with several aspects of advantages, including high seizure detection rate (92-99% during wake-sleep states), low false detection rate (1.2-2.5%), and small size. The seizure detection and electrical stimulation latency was not greater than 0.6 s after seizure onset. A wireless communication feature also provided flexibility for subjects freeing from the hassle of wires. Experimental data from freely moving rats supported the functional possibility of a real-time closed-loop seizure controller.

关键词： Electroencephalography Epilepsy Rats Real time systems Wireless communication Discharges Entropy

来源：评论

学校读者我要写书评

暂无评论

On-shelf utility mining with an upper-bound measure

引用

ICIC Express Letters 2010年第6 B期4卷 2445-2450页

作者： Lan, Guo-Cheng Hong, Tzung-Pei Tseng, Vincent S. Department of Computer Science and Information Engineering National Cheng Kung University Tainan 701 Taiwan Department of Computer Science and Information Engineering National University of Kaohsiung Kaohsiung 811 Taiwan Department of Computer Science and Engineering National Sun Yat-Sen University Kaohsiung 804 Taiwan Institute of Medical Informatics National Cheng Kung University Tainan 701 Taiwan

This paper handles the problem of finding high on-shelf utility itemsets, which considers not only individual profit and quantity of each item in a transaction but also on-shelf periods of the items. We have extended our previous approach by designing an efficient pruning strategy based on an on-shelf utility upper-bound measure to early prune the unpromising candidates in the mining process. Experimental results also show its performance. ICIC International © 2010 ISSN 1881-803X.

关键词： Data mining

来源：评论

学校读者我要写书评

暂无评论

Numerical simulation on the voltage response of field effect transistor by focused terahertz radiation

Numerical simulation on the voltage response of field effect...

引用

International Symposium on Photonics and Optoelectronics, SOPO 2010

作者： Yan, Zhifeng Zhu, Jingxuan Wang, Yinglei Lin, Xinnan He, Jin Key Laboratory of Integrated Microsystems School of Computer and Information Engineering Peking University Shenzhen Graduate School Shenzhen 518055 China Institute of Microelectronics School of Electronic Engineering and Computer Science Peking University Beijing 100871 China Peking University Shenzhen SOC Key Laboratory PKU HKUST Shenzhen Institute IER Bldg. W303 West Tower Shenzhen 518057 China State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences China

ISBN: (纸本)9781424449644

A numerical method is proposed to simulate the corresponding terahertz photoresponse which is induced by radiations between source-and-gate and gate-and-drain electrodes in field effect transistors. Simulations illustrate that the response of terahertz radiation in field effect transistor depends on the gate bias. The response contains contributions of different polarities which induced by radiations between 'source and gate electrodes' and 'gate and drain electrodes' respectively. The simulation matches well with the existing theory quantitatively. The proposed method is also used to study the response in resonant region by changing some parameters of field effect transistors (FET). The results illustrate that it is a useful tool in THz detector design and optimization. ©2010 IEEE.

关键词： Electrodes

来源：评论

学校读者我要写书评

暂无评论

NEST: A Compositional Approach to Rule-Based and Case-Based Reasoning

引用

Advances in Artificial Intelligence 2011年第1期2011卷

作者： Petr Berka Department of Information and Knowledge Engineering University of Economics W. Churchill Square 4 130 67 Prague 3 Czech Republicvse.cz Centre of Biomedical Informatics Institute of Computer Science of the Academy of Sciences Pod Vodarenskou vezi 2 182 07 Prague 8 Czech Republiccas.cz

Rule-based reasoning (RBR) and case-based reasoning (CBR) are two complementary alternatives for building knowledge-based “intelligent” decision-support systems. RBR and CBR can be combined in three main ways: RBR first, CBR first, or some interleaving of the two. The N EST system, described in this paper, allows us to invoke both components separately and in arbitrary order. In addition to the traditional network of propositions and compositional rules, N EST also supports binary, nominal, and numeric attributes used for derivation of proposition weights, logical (no uncertainty) and default (no antecedent) rules, context expressions, integrity constraints, and cases. The inference mechanism allows use of both rule-based and case-based reasoning. Uncertainty processing (based on Hájek′s algebraic theory) allows interval weights to be interpreted as a union of hypothetical cases, and a novel set of combination functions inspired by neural networks has been added. The system is implemented in two versions: stand-alone and web-based client server. A user-friendly editor covering all mentioned features is included.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Effect of high glucose and low intensity pulsed ultrasound on osteoblasts

Effect of high glucose and low intensity pulsed ultrasound o...

引用

IEEE Symposium (IUS) Ultrasonics

作者： Show-Huie Chen Shyh-Hau Wang Weng-Tyng Li Department of Biomedical Engineering Chung Yuan Christian University Chungli Taiwan Department of Computer Science and Information Engineering & Institute of Medical Informatics National Cheng Kung University Tainan Taiwan

ISBN: (纸本)9781457703829

Diabetes mellitus is a general metabolic disease commonly leading patients to skeletal disorders such as osteoporosis and bone fracture. Previous studies had shown that appropriate stimulation with low intensity pulsed ultrasound (LIPUS) may accelerate the proliferation and differentiation of osteoblasts for promoting fracture healing. In vitro experiments were carried out on the mouse osteoblastic cells which were cultured in the medium with either a normal glucose concentration of 5mM or high glucose concentration of 33mM. A 1 MHz LIPUS of a 100 mW/cm2 SATA intensity arranged from 20% duty cycle of a 1 kHz pulse repetition frequency was applied to daily stimulate osteoblasts for ten minutes. The responses of obsteoblasts with insonification were assessed by cell proliferation and gene expression from measurements of reverse transcriptase-ploymerase chain reaction (RT-PCR), osteoprotegerin (OPG), alkaline phosphatase (ALP), and osteocalcin (OCN) mRNA expression. Experiments were grouped into A: cells cultured in normal medium; B: cells cultured in normal medium and insonified with LIPUS; C: cells cultured in high glucose medium; D: cells cultured in high glucose medium and insonified with LIPUS. Results obtained from groups B, C, and D all showed that the corresponding growth of osteoblasts tended to increase compared to that of cells from the control group A. Specifically, the highest proliferation was found associated with osteoblasts of group D. The RT-PCR results revealed that mRNA levels of OPG corresponding to experimental groups of B, C, and D were respectively to be 1.29, 1.38, 1.62-fold more than that of control group; mRNA levels of ALP were respectively to be 1.18, 1.17, 1.38-fold more than that of control group and mRNA levels of OCN were respectively to be 1.41, 0.73, 1.22-fold more than that of control group. OCN mRNA expression was increased for those osteoblasts insonified with LIPUS from groups B and D, and that tended to be decreased for cells cul

关键词： Sugar Bones Ultrasonic imaging Cells (biology) Diabetes Acoustics Gene expression

来源：评论

学校读者我要写书评

暂无评论

Using grid infrastructure for the promotion of biomedical knowledge mining

Using grid infrastructure for the promotion of biomedical kn...

引用

12th Mediterranean Conference on medical and Biological engineering and Computing, MEDICON 2010

作者： Chatziioannou, A. Kanaris, I. Doukas, C. Maglogiannis, Ilias Institute of Biological Research and Biotechnology National Hellenic Research Foundation 48 Vassileos Constantinou Ave. Athens Greece Department of Information and Communication Systems Engineering University of the Aegean Karlovassi Samos Greece Department of Computer Science and Biomedical Informatics University of Central Greece Lamia Greece

ISBN: (纸本)9783642130380

Transcriptomic technologies (DNA microarrays, Next generation sequencers) represent a major innovation in biomedical research contributing an unprecedented wealth of data regarding genome-wide inspection of an organism. GRISSOM web application is a microarray analysis environment, exploiting Grid technologies. In this work we present how the novel functionalities it incorporates through the use of various web services, gradually transform it to a generic paradigm for versatile biological computing, semantic mining and knowledge discovery. © 2010 International Federation for medical and Biological engineering.

关键词： Grid computing

来源：评论

学校读者我要写书评

暂无评论

Collecting health related text from patient health writings

Collecting health related text from patient health writings

引用

International Conference on computer and Automation engineering, ICCAE

作者： Saiful Akbar Laura Slaughter Øystein Nytrø School of Electrical Engineering and Informatics Institute of Technology Bandung Bandung Indonesia Department of Computer and Information Science Norwegian University of Science and Technology Trondheim Norway

The Internet has been a huge resource for sharing and collecting information including health related information. Some health related information is written by patients (lay persons) discussing their experience about health problems and treatments. This paper introduces our initial work on providing physicians with clinically useful patient health writings. More specifically, the paper presented our experiments, as a part of the whole research work, on filtering health related text from patient health writings. We focused on selecting possible feature for classifying text from breast cancer mailing list into health and non health related text. Using KNN classification method, we experimented with various features, i.e. all terms, all terms except most frequently used terms, UMLS terms, health related UMLS terms, and health related UMLS semantic types. The experiments showed that UMLS terms extracted from the text is a good feature, compared to the other features.

关键词： Writing Internet Terminology Unified modeling language information services Web sites Breast cancer Clinical diagnosis medical services medical treatment

来源：评论

学校读者我要写书评

暂无评论

Power Saving Design for Servers under Response Time Constraint

Power Saving Design for Servers under Response Time Constrai...

引用

Euromicro Conference on Real-Time Systems

作者： Shengquan Wang Jian-Jia Chen Jun Liu Xue Liu Department of Computer and Information Science University of Michigan Dearborn USA Department of Informatics Karlsruhe Institute of Technology Germany Department of Computer Science and Engineering University of Nebraska Lincolnshire USA

ISBN: (纸本)9781424475469

Reducing the power consumption while maintaining the response time constraint has been an important goal in server system design. One of the techniques widely explored in the literature to achieve this goal is Dynamic Voltage Scaling (DVS). However, DVS is not efficient in modern systems where the overall power consumption includes a large portion of static power consumption. In this paper, we aim to reduce the static power consumption by Dynamic Power Management (DPM) with sleep model in addition to DVS. We propose a smart PowerSleep power-saving scheme, where a procrastination technique is adopted to carefully aggregate jobs to reduce the overhead of transitions in and out of the sleep mode. We also observe that PowerSleep might not always be a good choice due to the mode transition overhead when the server utilization is high, where instead we use PowerIdle power-saving scheme with DVS only. By modeling the system with M/G/1/PS queuing model and further extensions, we present how to minimize the mean power consumption of the server under the given mean response time constraint for both power-saving schemes. Simulation results show that our smart PowerSleep scheme significantly outperforms the simple power saving scheme which adopts sleep mode.

关键词： Servers Power demand Time factors Voltage control Queueing analysis Scheduling algorithm Timing

来源：评论

学校读者我要写书评

暂无评论

In Vivo Assessment of Inflammatory Skin Using High Frequency Ultrasound Image and Quantitative Parameters

In Vivo Assessment of Inflammatory Skin Using High Frequency...

引用

2010 IEEE International Ultrasonics Symposium

作者： Yi-Hsun Lin Chih-Chung Huang Shyh-Hau Wang Department of Computer Science and Information Engineering & Institute of Medical Informatics National Cheng Kung University Tainan Taiwan Department of Electronic Engineering Fu Jen Catholic University Hsin Chuang Taiwan

ISBN: (纸本)9781457703829

Histological examination remains the most direct means to assess the inflammatory tissue. It however is still with the nature of invasiveness and is time consuming for the preparation of tissue slices. The slice apparently is not applicable for a long term observation of the tissue in situ. For these reasons, this study is to explore another approach to assess the inflammatory skin using strengths and statistical parameters of high frequency ultrasonic backscattering signals. The experiments were performed from the dorsal skins of BALB/c mice using a 50 MHz ultrasound. The dorsal skins of different mice were injected with a 0.15 ml of either saline or lipopolysaccharides (LPS) with dosage of 2 mg/ml to be as the control group or to induce the local inflammation of the skin as the experiment group, respectively. Each set of experiments was arranged for four days, in which images and backscattered signals of the skins from both control and experiment groups were scanned and acquired daily. Parameters to assess the inflammation included a typical cutaneous thickness estimated from ultrasonic image and that those of integrated backscatter (IB) and Nakagami parameter (m) were calculated from regions of acquired backscattering signals. Results showed that there were no significant differences among measurements of those control groups injected with saline. On the other hand, the inflammatory skin induced by LPS injection tended to result an increase of cutaneous thickness from 0.38+-0.07 mm of normal skin to 0.7+-0.11 mm of the fourth day. The corresponding IB tended to decrease from -182.5+-2.7 dB to -194.4+-2.5 dB and m increase slightly from 0.36+-0.08 to 0.51+-0.12. Those thickness and quantitative parameters variations could be directly associated with changes of tissue properties due to a transfer of massive fluid shifts from the intravascular space into the interstitium and intracellular spaces in the inflammatory skin. This study has demonstrated that cutaneous th

关键词： high frequency ultrasound inflammation integrated backscatter Nakagami parameter

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：