2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE)最新文献_第5页

Cognitive workload level estimation based on eye tracking: A machine learning approach 基于眼动追踪的认知工作量水平估计:一种机器学习方法

2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE) Pub Date : 2021-10-25 DOI: 10.1109/BIBE52308.2021.9635166

Vasileios Skaramagkas, Emmanouil Ktistakis, D. Manousos, N. Tachos, E. Kazantzaki, E. Tripoliti, D. Fotiadis, M. Tsiknakis

引用次数: 3

Exploring Artificial Intelligence methods for recognizing human activities in real time by exploiting inertial sensors 探索利用惯性传感器实时识别人类活动的人工智能方法

2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE) Pub Date : 2021-10-25 DOI: 10.1109/BIBE52308.2021.9635486

Dimitrios Boucharas, Christos Androutsos, N. Tachos, E. Tripoliti, Dimitrios Manousos, Vasileios Skaramagkas, Emmanouil Ktistakis, M. Tsiknakis, D. Fotiadis

引用次数: 1

Effect of Continuous and Discrete Feedback on Agency and Frustration in a Brain-Computer Interface Virtual Reality Interaction 连续和离散反馈对脑机接口虚拟现实交互中的代理和挫折的影响

2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE) Pub Date : 2021-10-25 DOI: 10.1109/BIBE52308.2021.9635586

Thomas K. K. Kjeldsen, Thomas B. Nielsen, Hamzah Ziadeh, Steffen Lehmann, Louise D. Nielsen, Dávid Gulyás, B. I. Hougaard, H. Knoche, M. Jochumsen

{"title":"Effect of Continuous and Discrete Feedback on Agency and Frustration in a Brain-Computer Interface Virtual Reality Interaction","authors":"Thomas K. K. Kjeldsen, Thomas B. Nielsen, Hamzah Ziadeh, Steffen Lehmann, Louise D. Nielsen, Dávid Gulyás, B. I. Hougaard, H. Knoche, M. Jochumsen","doi":"10.1109/BIBE52308.2021.9635586","DOIUrl":"https://doi.org/10.1109/BIBE52308.2021.9635586","url":null,"abstract":"Brain-computer interfaces (BCIs) provide users with a means to control external devices or applications using only voluntarily produced brain activity. Controlling a BCI through motor imagery is a skill that must be acquired, however, little evidence is available on how the user's agency and frustration are affected by different types of feedback during an interaction with a BCI. This was investigated during a virtual reality interaction where 14 naive participants controlled an avatar with a BCI while receiving either continuous or discrete feedback on their performance. The agency, frustration, ownership and BCI performance were assessed after each of the two conditions (continuous and discrete feedback). There was no statistical difference between the conditions although the participants generally rated agency higher for the continuous feedback which was also uncorrelated to the BCI performance. This suggests that continuous feedback can be useful for increasing agency for users with poor BCI performance by providing them with some knowledge of performance.","PeriodicalId":343724,"journal":{"name":"2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129373133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Parallelization of lattice Boltzmann software for execution on multi-GPU clusters with application to the simulation of blood flow through human arteries 网格玻尔兹曼软件在多gpu集群上执行的并行化及其在人体动脉血流模拟中的应用

2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE) Pub Date : 2021-10-25 DOI: 10.1109/BIBE52308.2021.9635318

T. Djukić, N. Filipovic

{"title":"Parallelization of lattice Boltzmann software for execution on multi-GPU clusters with application to the simulation of blood flow through human arteries","authors":"T. Djukić, N. Filipovic","doi":"10.1109/BIBE52308.2021.9635318","DOIUrl":"https://doi.org/10.1109/BIBE52308.2021.9635318","url":null,"abstract":"It is important to consider the blood flow pattern when planning vascular interventions of atherosclerotic plaques. Large scale computer modeling can be very helpful in this case. The software presented in this paper numerically models blood flow through patient-specific blood vessels. Lattice Boltzmann method was used to simulate blood flow. The principles of GPU (Graphics Processing Unit) programming are applied during implementation and the developed software was parallelized using the CUDA (Compute Unified Device Architecture) and optimized to run on a multi-GPU cluster using the MPI approach. Using the multi-GPU infrastructure, numerical simulations can utilize larger amount of memory resources for the computation, making the level of reality of the models an order of magnitude higher. Execution of the presented software enables fast and reliable case-studies and parametric analyses useful for medical decision-making. The presented software can give medical professionals fast quantitative information about fluid flow in diseased arteries and assist them in selecting the most appropriate treatment.","PeriodicalId":343724,"journal":{"name":"2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126962766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative Assessment of Computational vs. In Vitro Methods for the Estimation of Dry Powders for Inhalation Emitted Fraction 计算方法与体外方法对干粉吸入释放分数估算的比较评价

2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE) Pub Date : 2021-10-25 DOI: 10.1109/BIBE52308.2021.9635217

Jelisaveta Ignjatović, T. Šušteršič, S. Cvijić, Aleksandar Bodić, Jelena Duris, S. Ibrić, N. Filipovic

{"title":"Comparative Assessment of Computational vs. In Vitro Methods for the Estimation of Dry Powders for Inhalation Emitted Fraction","authors":"Jelisaveta Ignjatović, T. Šušteršič, S. Cvijić, Aleksandar Bodić, Jelena Duris, S. Ibrić, N. Filipovic","doi":"10.1109/BIBE52308.2021.9635217","DOIUrl":"https://doi.org/10.1109/BIBE52308.2021.9635217","url":null,"abstract":"Emitted fraction (EF) is one of the critical quality attributes of dry powders for inhalation (DPIs). Traditionally, different in vitro methods have been used for the assessment of DPIs EF. However, the evolution in computer-based (in silico) methods led to the development of special fields, such as Computational Fluid Dynamics (CFD) coupled with fluid-particle dynamics models e.g., Discrete Phase Model (DPM) as a useful alternative for the assessment of DPIs aerodynamic performance. The aim of this study was to design a CFD-DPM model for the prediction of model DPIs EF, and assess the prediction power of this method by comparing the in silico prediction results with in vitro determined EF values, obtained by three different methods. The EFs of the solid lipid microparticles (SLM) DPIs were determined in vitro by Twin stage impinger, Next generation impactor and Fast Screening Impactor. CFD-DPM model was successfully designed, and then the simulation results indicated the percentage of particles that remained in the inhaler. Based on those data, DPI EFs were calculated to be in the range of 83 % and 92%, indicating that CFD-DPM simulations were able to catch the differences between five SLM DPI formulations. In addition, CFD-DPM predicted the regional particle deposition in the inhaler, which cannot be precisely determined based on in vitro experiments. CFD-DPM predicted EF values were generally comparable to the EF values obtained by three in vitro methods, although some differences were observed between in vitro and in silico values. Therefore, it can be concluded that although additional improvements of CFD-DPM designed model are still necessary in order to be able to precisely describe aerodynamic performance of SLM DPIs, CFD-DPM modeling can be considered as a very useful tool in DPIs development.","PeriodicalId":343724,"journal":{"name":"2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122097187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In-silico Research Platform in the Cloud - Performance and Scalability Analysis 云中的芯片研究平台——性能和可扩展性分析

2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE) Pub Date : 2021-10-25 DOI: 10.1109/BIBE52308.2021.9635574

M. Ivanovic, A. Živić, N. Tachos, George Gois, N. Filipovic, D. Fotiadis

{"title":"In-silico Research Platform in the Cloud - Performance and Scalability Analysis","authors":"M. Ivanovic, A. Živić, N. Tachos, George Gois, N. Filipovic, D. Fotiadis","doi":"10.1109/BIBE52308.2021.9635574","DOIUrl":"https://doi.org/10.1109/BIBE52308.2021.9635574","url":null,"abstract":"The paper describes experiences from building and cloudification of the in-silico research platform SilicoFCM, an innovative in-silico clinical trials' solution for the design and functional optimization of whole heart performance and monitoring effectiveness of pharmacological treatment, with the aim to reduce the animal studies and the human clinical trials. The primary aim of cloudification was to prove portability, improve scalability and reduce long-term infrastructure costs. The most computationally expensive part of the platform, the scientific workflow manager, was successfully ported to Amazon Web Services. We benchmarked the performance on three distinct research workflows, each of them having different resource requirements and execution time. The first benchmark was pure performance of running workflow sequentially. The aim of the second test was to stress-test the underlying infrastructure by submitting multiple workflows simultaneously. The benchmark results are promising, painting the infrastructure launching overhead almost negligible in this kind of heavy computational use-case.","PeriodicalId":343724,"journal":{"name":"2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129486967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Natural Language Understanding Model COVID-19 based for chatbots 基于聊天机器人的自然语言理解模型COVID-19

2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE) Pub Date : 2021-10-25 DOI: 10.1109/BIBE52308.2021.9635248

Valmir Ferreira dos Santos Junior, João Araújo Castelo Branco, Marcos Antonio de Oliveira, T. C. D. Silva, L. A. Cruz, R. P. Magalhães

{"title":"A Natural Language Understanding Model COVID-19 based for chatbots","authors":"Valmir Ferreira dos Santos Junior, João Araújo Castelo Branco, Marcos Antonio de Oliveira, T. C. D. Silva, L. A. Cruz, R. P. Magalhães","doi":"10.1109/BIBE52308.2021.9635248","DOIUrl":"https://doi.org/10.1109/BIBE52308.2021.9635248","url":null,"abstract":"It is increasingly common to use chatbots as an interface to use services. Making this experience more humanized requires the chatbot to understand natural language and express itself using natural language. One crucial step to achieve this is to label the data with intentions and entities. After labeling, one can use the labeled data to train a Natural Language Understanding (NLU) component. The NLU component interprets the text extracting the intentions and entities present in that text. Manually label the data is an onerous and impracticable process due to the high volume of data. Thus, an unsupervised machine learning technique, such as data clustering, is usually used to find patterns in the data and thereby label them. For this task, it is essential to have an effective vector embedding representation of texts that depicts the semantic information and helps the machine understand the context, intent, and other nuances of the entire text. In this paper, we perform an extensive evaluation of different text embedding models for clustering, labeling, and training an NLU model using the text of attendances from the Coronavirus Platform Service of Ceará, Brazil. We also show how different text embeddings result in different clustering, thus capturing different intentions of patients.","PeriodicalId":343724,"journal":{"name":"2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123246163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Numerical simulation of fractional flow reserve in atherosclerotic coronary arteries 冠状动脉粥样硬化部分血流储备的数值模拟

2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE) Pub Date : 2021-10-25 DOI: 10.1109/BIBE52308.2021.9635457

I. Šaveljić, T. Djukić, D. Nikolić, S. Djorovic, N. Filipovic

引用次数: 0

Adaptive Semi-automatic Robot Control by Tongue in a Remote Setting for Individuals with Tetraplegia 四肢瘫痪患者远程自适应半自动机器人舌头控制

2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE) Pub Date : 2021-10-25 DOI: 10.1109/BIBE52308.2021.9635539

Anton Bjømdahl Mortensen, Emil Tribler Pedersen, J. Knudsen, J. Mortensen, Marie Hiorth Bogestrand, L. Struijk, Ásgerdur Arna Pálsdóttir

{"title":"Adaptive Semi-automatic Robot Control by Tongue in a Remote Setting for Individuals with Tetraplegia","authors":"Anton Bjømdahl Mortensen, Emil Tribler Pedersen, J. Knudsen, J. Mortensen, Marie Hiorth Bogestrand, L. Struijk, Ásgerdur Arna Pálsdóttir","doi":"10.1109/BIBE52308.2021.9635539","DOIUrl":"https://doi.org/10.1109/BIBE52308.2021.9635539","url":null,"abstract":"Individuals with tetraplegia are severely limited in terms of independence, which can lead to depression and premature death. The field of robotics has sought to create solutions for increased independence by enabling individuals with tetraplegia to perform physical activities. This includes semiautomatic solutions. The use case of an assistive robotic manipulator (ARM) and thus increased independence could be expanded by allowing remote control, e.g. when the user is lying in bed. This study presents and evaluates semi-autonomous intraoral tongue-based control of a seven degree of freedom ARM/gripper in a near and remote setting. The system consists of a tongue control interface (iTongue), a semi-automatic framework based on YOLOv5 and adaptive levels of automation, an Intel Realsense D435i camera and a JACO robotic manipulator. Two study participants completed ten rounds of controlling the JACO ARM to reach and pick up a soda bottle and pour from it in a cup. The semi-automation improved the grasping performance for both of the study participants, particularly when controlling in a remote setting, decreasing the cognitive load and the overall task completion time. The presented system has the potential to increase the independence and quality of life for individuals with tetraplegia, by enabling the user to perform physical activities even when lying in bed. Future work should include expanding the semi-automation to other activities of daily living and evaluating the system in a greater population and by individuals with tetraplegia.","PeriodicalId":343724,"journal":{"name":"2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE)","volume":"1119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128611436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioelectrical Circuit from Charged Proteins as Biomarker of Renal Damage 来自带电蛋白的生物电回路作为肾脏损伤的生物标志物

2021 IEEE 21st International Conference on Bioinformatics and Bioengineering (BIBE) Pub Date : 2021-10-25 DOI: 10.1109/BIBE52308.2021.9635407

H. Nieto-Chaupis

引用次数: 0