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7th International Congress on Ambient Intelligence, Software Engineering, and e-Health and Mobile Health, AmITIC 2024

作者： Jiménez-Delgado, E. Quesada-López, C. Méndez-Porras, A. Lara-Petitdemange, A. Alfaro-Velasco, J. Graduate Program in Computer Science and Informatics University of Costa Rica Costa Rica Technological Institute of Costa Rica Computer Engineering Department Costa Rica School of Computer Science and Informatics University of Costa Rica Costa Rica

ISBN: (纸本)9798350364538

In this study, two deep learning models for automatic tattoo detection were analyzed;a modified Convolutional Neural Network (CNN) and pre-trained ResNet-50 model. In order to achieve this, ResNet-50 uses transfer learning with fine-tuning. The purpose of this study was to evaluate the accuracy, precision, recall, F1-score, and computational efficiency of the system being considered. To augment the dataset included 1000 photos that were equally divided between those showing tattoos and those that did not show tattoos. A k-fold cross-validation approach was employed in training and testing the models. Although custom CNNs are effective, utilizing pre-trained ones like ResNet-50 can offer even better outcomes. Specifically, ResNet-50 attained a higher accuracy (0.86 compared to 0.79), precision (0.85 versus 0.78), recall (0.91 against 0.86), and F1-score (0.91 vis-a-vis 0.86) as compared to custom CNNs. In selecting these models for examination, two main motivations were considered. The first motivation is to see whether transfer learning with a pre-trained ResNet-50 model does well when compared with a customized CNN designed specifically for tattoo detection. Secondly,the intent of this study is to know what advantages can be derived from each approach and their demerits too. Furthermore, it seeks to determine if transfer learning can provide an alternative in contrast to the common CNN techniques with regards to precision and computational efficiency. In this research, two models will be evaluated in order to answer the question of what is better for tattoo detection: transfer learning or designing custom architectures. © 2024 IEEE.

关键词： Convolution

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Replication-based highly available metadata management for cluster file systems

Replication-based highly available metadata management for c...

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作者： Chen, Zhuan Xiong, Jin Meng, Dan National Research Center for Intelligent Computing Systems Institute of Computing Technology Chinese Academy of Sciences China Graduate University of Chinese Academy of Sciences China Department of Computer Science University of Rochester United States

ISBN: (纸本)9780769542201

In cluster file systems, the metadata management is critical to the whole system. Past researches mainly focus on journaling which alone is not enough to provide high-available metadata service. Some others try to use replication, but the extra latency accompanied is a main problem. To guarantee both availability and efficiency, we propose a mechanism for building highly available metadata servers based on replication, which integrates Paxos algorithm effectively into metadata service. The Packed Multi-Paxos is proposed to reduce the latency brought by replication, which is self-adaptive and can make the replication to achieve high throughput under heavy client load and low latency under light client load. By designing efficient architecture and coordination mechanism, all replica server nodes simultaneously provide metadata read-access service. This high-available mechanism could decrease the impact of server failures and there is no interruption of service. The performance results show that the latency caused by replication and redundancy is well under control, and the performance of metadata read operation gains improvement. © 2010 IEEE.

关键词： Metadata

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Evaluation of process variability on current for nanotechnologies devices

Evaluation of process variability on current for nanotechnol...

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2012 IEEE 3rd Latin American Symposium on Circuits and Systems, LASCAS 2012

作者： Meinhardt, Cristina Reis, Ricardo Computer Science Center - C3 Federal University of Rio Grande - FURG Rio Grande Brazil Graduate Program in Computing Institute of Informatics Federal University of Rio Grande Do Sul - UFRGS Porto Alegre Brazil

ISBN: (纸本)9781467312080

The continuous shrinking of devices has introduced new challenges to integrated circuit design, mainly to deal with the parametric variations in process parameters. This paper presents an evaluation of the process variability on the current Ids of nanotechnologies devices, individually and simultaneously, taking into account the correlation among them. The results show that the deviation from mean value is quite significant ≈ 16% for high performance models. The variation of L has the dominant effect on the overall variation of the device in high performance models while the dominant effect on the overall variation of the device in low power models still being due to Vth variations. Lastly, the effect of process parameter variations deteriorates with technology scaling, with a considerable increase in the deviation from the 22nm to 16nm technology. © 2012 IEEE.

关键词： Nanotechnology

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Initial explorations on using CRFs for turkish named entity recognition

Initial explorations on using CRFs for turkish named entity ...

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24th International Conference on Computational Linguistics, COLING 2012

作者： Şseker, Gökhan Akin Eryǐgit, Güļsen ITU Informatics Institute Graduate Program in Computer Science Istanbul Technical University Istanbul 34469 Turkey Department of Computer Engineering Istanbul Technical University Istanbul 34469 Turkey

This paper reports the highest results (95% in MUC and 92% in CoNLL metric) in the literature for Turkish named entity recognition;more specifically for the task of detecting person, location and organization entities in general news texts. We give an in depth analysis of the previous reported results and make comparisons with them whenever possible. We use conditional random fields (CRFs) as our statistical model. The paper presents initial explorations on the usage of rich morphological structure of the Turkish language as features to CRFs together with the use of some basic and generative gazetteers. © 2012 The COLING.

关键词： Random processes

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DMSS:An Attention-Based Deep Learning Model for High-Quality Mass Spectrometry Prediction

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Big Data Mining and Analytics 2024年第3期7卷 577-589页

作者： Yihui Ren Yu Wang Wenkai Han Yikang Huang Xiaoyang Hou Chunming Zhang Dongbo Bu Xin Gao Shiwei Sun Key Lab of Intelligent Information Processing Institute of Computing TechnologyChinese Academy of SciencesBeijing 100190Chinaand with University of Chinese Academy of SciencesBeijing 100049China Syneron Technology Guangzhou 510000China College of Information and Electrical Engineering China Agricultural UniversityBeijing 100083China Computer Science Program ComputerElectrical and Mathematical Sciences and Engineering DivisionKing Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Kingdom of Saudi Arabia Insitute of Computing Technology Chinese Academy of SciencesBeijing 100190China with Western Institute of Computing Technology Chongqing 400000China

Accurate prediction of peptide spectra is crucial for improving the efficiency and reliability of proteomic analysis,as well as for gaining insight into various biological *** this study,we introduce Deep MS Simulator(DMSS),a novel attention-based model tailored for forecasting theoretical spectra in mass *** has undergone rigorous validation through a series of experiments,consistently demonstrating superior performance compared to current methods in forecasting theoretical *** superior ability of DMSS to distinguish extremely similar peptides highlights the potential application of incorporating our predicted intensity information into mass spectrometry search engines to enhance the accuracy of protein *** findings contribute to the advancement of proteomics analysis and highlight the potential of the DMSS as a valuable tool in the field.

关键词： mass spectrometry proteomics machine learning deep learning

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Utilization of Decentralized Autonomous Organization (DAO) for Virtual Property Transaction Governance in Metaverse: A Conceptual Framework 3

Utilization of Decentralized Autonomous Organization (DAO) f...

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3rd International Conference on Intelligent Cybernetics Technology and Applications, ICICyTA 2023

作者： Martha, Gede Indra Raditya Gaol, Ford Lumban Supangkat, Suhono Harso Ranti, Benny Bina Nusantara University Graduate Program - Computer Science Jakarta Indonesia Bina Nusantara University Computer Science Departement Computer Science Jakarta Indonesia Institute Technology Bandung Faculty of Digital Communication and Hotel & Tourism Bandung Indonesia University of Indonesia Faculty of Computer Science Jakarta Indonesia

ISBN: (纸本)9798350394559

Research related to digital assets & ownership is currently rising along with the escalation utilization of Blockchain through various use cases and its derevatives, for example in facilitating Digital Assets in the form of virtual property (virtual houses / buildings and virtual land) in the Metaverse. These digital assets often have utilities, features, and even limited copies of quantities so that these digital objects have more value for specific users on a platform and even general people who are interested in and value them. To be able to preserve the value of digital assets in the Metaverse such as virtual property previously mentioned especially for transactions, a set of regulations/governance, as well as sustainable development in the future in the Metaverse is really needed so that the use of Decentralized Autonomous Organization (DAO) in the metaverse is one way to maintain the sustainability of the ecosystem & market and its potential of virtual property. After conducting research for DAO development for virtual property transactions, starting with determining goals & purposes, breaking down the DAO focus object (virtual property), clustering relevant attributes, matching socio-economic impacts, and finally designing smart contracts & governance consensus, we obtained 4 main layers namely Consensus Governance, Smart Contract, Virtual Property & Socio-Economic. © 2023 IEEE.

关键词： Smart contract

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Modeling style and variation in human motion

Modeling style and variation in human motion

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ACMSIGGRAPH/Eurographics Symposium on computer Animation, SCA 2010

作者： Ma, Wanli Xia, Shihong Hodgins, Jessica K. Yang, Xiao Li, Chunpeng Wang, Zhaoqi Institute of Computing Technology Chinese Academy of Sciences China Graduate University of Chinese Academy of Sciences China School of Computer Science Carnegie Mellon University United States

ISBN: (纸本)9783905674279

Style and variation are two vital components of human motion: style differentiates between examples of the same behavior (slow walk vs. fast walk) while variation differentiates between examples of the same style (vigorous vs. lackadaisical arm swing). This paper presents a novel method to simultaneously model style and variation of motion data captured from different subjects performing the same behavior. An articulated skeleton is separated into several joint groups, and latent variation parameters are introduced to parameterize the variation of each partial motion. The relationships between user-defined style parameters and latent variation parameters are represented by a Bayesian network that is automatically learned from example motions. The geostatistical model, named universal Kriging, is extended to be a style-and-variation interpolation to generate partial motions for all joint groups. Experiments with sideways stepping, walking and running behaviors have demonstrated that the motion sequences synthesized by our method are smooth and natural, while their variations can be easily noticed even when their input style parameters are the same. © The Eurographics Association 2010.

关键词： Bayesian networks

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Design and implementation of portable and efficient non-blocking collective communication 12

Design and implementation of portable and efficient non-bloc...

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12th IEEE/ACM International Symposium on Cluster, Cloud and Grid computing, CCGrid 2012

作者： Nomura, Akihiro Ishikawa, Yutaka Maruyama, Naoya Matsuoka, Satoshi Global Schientific Information and Computing Center Tokyo Institute of Technology Japan JST CREST Japan Depatment of Computer Science Graduate School of Information Science and Technology University of Tokyo Japan National Institute of Informatics Japan

ISBN: (纸本)9780769546919

Non-blocking communications are widely used in parallel applications for hiding communication overheads through overlapped computation and communication. While most of the existing implementations provide a non-blocking version of point-to-point communications, there is no portable and efficient implementation of non-blocking collectives, partly because application execution contexts need to be interrupted by dependent communications. This paper presents a portable and efficient user-level implementation technique of non-blocking communications. It allows users to design non-blocking collectives by declaring their operations and dependencies using provided APIs without being concerned with complicated management of their progression. While user-level implementations can be less efficient than kernel-level ones due to the cost of OS context switches, we solve this problem by employing the Marcel user level light-weight thread library when invoking communication operations. More specifically, each communication operation is mapped to one Marcel thread and scheduled to be executed when each operation's dependencies are satisfied by certain events. All executable operations and main user thread are executed simultaneously without any explicit invocations. Performance evaluations with micro benchmarks demonstrate the effectiveness of our proposed technique. Compared to existing OS-thread based method, it reduces CPU load to less than 10% while achieving similar level of communication latencies. We also discuss and compare the descriptive power of internal expressions for non-blocking communications. © 2012 IEEE.

关键词： Benchmarking

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An Efficient VLSI Architecture for Motion Compensation of AVS HDTV Decoder

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Journal of computer science & Technology 2006年第3期21卷 370-377页

作者：郑俊浩邓磊张鹏解晓东 Institute of Computing Technology Chinese Academy of Sciences Beijing 100080 P.R. China Department of Computer Science Harbin Institute of Technology Harbin 150001 P.R. China Graduate University of Chinese Academy of Sciences Beijing 100039 P.R. China Grandview Semiconductor (Beijing) Corporation Beijing 100039 P.R. China

In the part 2 of advanced Audio Video coding Standard （AVS-P2）, many efficient coding tools are adopted in motion compensation, such as new motion vector prediction, symmetric matching, quarter precision interpolation, etc. However, these new features enormously increase the computational complexity and the memory bandwidth requirement, which make motion compensation a difficult component in the implementation of the AVS HDTV decoder. This paper proposes an efficient motion compensation architecture for AVS-P2 video standard up to the Level 6.2 of the Jizhun Profile. It has a macroblock-level pipelined structure which consists of MV predictor unit, reference fetch unit and pixel interpolation unit. The proposed architecture exploits the parallelism in the AVS motion compensation algorithm to accelerate the speed of operations and uses the dedicated design to optimize the memory access. And it has been integrated in a prototype chip which is fabricated with TSMC 0.18-#m CMOS technology, and the experimental results show that this architecture can achieve the real time AVS-P2 decoding for the HDTV 1080i （1920 - 1088 4 ： 2 ： 0 60field/s） video. The efficient design can work at the frequency of 148.5MHz and the total gate count is about 225K.

关键词： motion compensation AVS VLSI architecture

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Exploration of Technology Home-based Learning Guidance for Parents and Students during the Covid-19 Pandemic 9

Exploration of Technology Home-based Learning Guidance for P...

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9th International Congress on Advanced Applied Informatics, IIAI-AAI 2020

作者： Suzanna, Suzanna Sasmoko, Sasmoko Lumban Gaol, Ford Oktavia, Tanty Matsuo, Tokuro Bina Nusantara University Binus Graduate Program-Doctor of Computer Science Computer Science Department Jakarta11480 Indonesia Advanced Institute of Industrial Technology Information System Department Tokyo140-0011 Japan

ISBN: (纸本)9781728173979

With the sudden attack of the Corona Virus Disease 2019 (COVID-19), some 300 million children in the world have been forced to study at home because of the mass closure of schools that began on March 18, 2020. This has caused many obstacles in the teaching and learning process. Every effort is made to minimize the COVID-19 pandemic while ensuring the teaching and learning process is not interrupted. If the school closures too long and the child is trapped inside the house this will have a negative impact on the physical and mental health of the children. This situation makes parents become worried and look for alternative education in addition to formal schooling for their children. Of the various types of education offers that exist homeschooling or commonly known as home-based learning provides a way out for the current situation. Now children are quarantined in their homes and they will return to school once this epidemic fades. But with this disaster, parents' views on homeschooling or home-based learning can be different from before. They may still be marked if home-based learning can be a long-term education. With the existence of COVID-19, most parents might finally realize that education without formal schooling is not a crisis but an opportunity to take their children to a better future. This research was conducted by utilizing a descriptive qualitative method and within the descriptive qualitative method, the concept of document analysis would be utilized the most. It was expected that the results of this research would explore what type of technology parents could prepare for their children to use to initiate home-based learning. © 2020 IEEE.

关键词： Viruses

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