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Combined VGG-Long Short Term Memory with Gamma Correction for Pneumonia Type Classification based on Chest X-Rays vgg -长短期记忆联合伽玛校正在胸片肺炎分型中的应用
IJCSAM (International Journal of Computing Science and Applied Mathematics) Pub Date : 2023-08-17 DOI: 10.12962/j24775401.v9i2.15743
Nia Amelia, Riskyana Dewi Intan Puspitasari, Hasanuddin Al-Habib, Elly Matul Imah
{"title":"Combined VGG-Long Short Term Memory with Gamma Correction for Pneumonia Type Classification based on Chest X-Rays","authors":"Nia Amelia, Riskyana Dewi Intan Puspitasari, Hasanuddin Al-Habib, Elly Matul Imah","doi":"10.12962/j24775401.v9i2.15743","DOIUrl":"https://doi.org/10.12962/j24775401.v9i2.15743","url":null,"abstract":"Pneumonia is the second disease with the most patients being treated in the emergency department. Pneumonia can be distinguished based on its severity into viral and bacterial pneumonia. The coronavirus (COVID-19) has become a pandemic that spread globally. Panic during the pandemic has caused many people to self-diagnose and acknowledge common pneumonia as COVID-19. Despite having almost similar symptoms, not all pneumonia is COVID-19. Pneumonia is an inflammation of the lungs caused by bacteria, viruses, or fungi. In contrast, pneumonia in COVID-19 is caused by the SARS-CoV-2 virus. Early diagnosis of COVID-19 and pneumonia is crucial to perform the optimal treatment. A chest x-ray is a common way to detect pneumonia and is recommended for COVID-19. This study proposes a Pneumonia classification including a COVID-19 system based on X-Rays images using VGG-long short-term memory (LSTM) on chest X-ray images. This study applied gamma correction image enhancement to the thorax X-ray image. In the proposed system, VGG is used for feature extraction, and LSTM is used as a classifier. The experimental results show that the proposed system got an accuracy of 96.88% compared to previous state-of-the-art methods for pneumonia classification","PeriodicalId":475122,"journal":{"name":"IJCSAM (International Journal of Computing Science and Applied Mathematics)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136338080","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
Construction of 2-Norm Cone Associated with Inner Product S-Cone 与内积s锥相关的2范数锥的构造
IJCSAM (International Journal of Computing Science and Applied Mathematics) Pub Date : 2023-08-17 DOI: 10.12962/j24775401.v9i2.18364
Sadjidon Sadjidon, Mahmud Yunus, Sunarsini Sunarsini, Lukman Hanafi
{"title":"Construction of 2-Norm Cone Associated with Inner Product S-Cone","authors":"Sadjidon Sadjidon, Mahmud Yunus, Sunarsini Sunarsini, Lukman Hanafi","doi":"10.12962/j24775401.v9i2.18364","DOIUrl":"https://doi.org/10.12962/j24775401.v9i2.18364","url":null,"abstract":"This paper is devoted to discussing an inner product in cone normed spaces and constructing S-cone inner products to define S-cone inner product spaces, especially in ℓ2-space. Moreover, we also construct cone 2-norm spaces associated with S-cone inner product spaces.","PeriodicalId":475122,"journal":{"name":"IJCSAM (International Journal of Computing Science and Applied Mathematics)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136338083","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
Optimal Control of an Uncertain Linear Networked Control Systems Under Denial of Service Attacks 拒绝服务攻击下不确定线性网络控制系统的最优控制
IJCSAM (International Journal of Computing Science and Applied Mathematics) Pub Date : 2023-08-17 DOI: 10.12962/j24775401.v9i2.16303
Tua A Tamba
{"title":"Optimal Control of an Uncertain Linear Networked Control Systems Under Denial of Service Attacks","authors":"Tua A Tamba","doi":"10.12962/j24775401.v9i2.16303","DOIUrl":"https://doi.org/10.12962/j24775401.v9i2.16303","url":null,"abstract":"Controller design based on networked control system (NCS) framework typically relies on the use of computers and communication network systems to automatically monitor and manage the interactions and data exchanges between plant, sensor, controller and actuator elements of the considered closed loop NCS. Such design and implementation scheme are often challenging, particularly due to the requirement of guaranteed reliability and resiliency to possible failure of or malicious cyber attacks on the communication system part. This paper examines the stability of a class of uncertain linear NCS that is subjected to Denial-of-Service (DoS) attacks. In essence, a DoS is a failure phenomenon on the communication links which in NCS framework can prevents the execution of ideal control inputs to take place. Specifically, this paper examines the design of an event-triggered resilient controller for an uncertain linear NCS in the face of such a DoS phenomenon and characterizes sufficient conditions under which the closed loop NCS is guaranteed to remain globally asymptotically stable.","PeriodicalId":475122,"journal":{"name":"IJCSAM (International Journal of Computing Science and Applied Mathematics)","volume":"300 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136338085","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
Evaluating the Fitting Performance of AGARCH(1,1), NAGARCH(1,1), and VGARCH(1,1) Models AGARCH(1,1)、NAGARCH(1,1)和VGARCH(1,1)模型的拟合性能评价
IJCSAM (International Journal of Computing Science and Applied Mathematics) Pub Date : 2023-08-17 DOI: 10.12962/j24775401.v9i2.15921
Didit Budi Nugroho, Veny M Ningtyas, Hanna A Parhusip
{"title":"Evaluating the Fitting Performance of AGARCH(1,1), NAGARCH(1,1), and VGARCH(1,1) Models","authors":"Didit Budi Nugroho, Veny M Ningtyas, Hanna A Parhusip","doi":"10.12962/j24775401.v9i2.15921","DOIUrl":"https://doi.org/10.12962/j24775401.v9i2.15921","url":null,"abstract":"This study compares the performance of the GARCH(1,1), AGARCH(1,1), NAGARCH(1,1), and VGARCH(1,1) models fitted to real data. The observed real data are the USD exchange rate against IDR in the daily period from January 2010 to December 2017. To identify the superiority and evaluate the performance of those models in capturing the heavy-tailed and skewed character in exchange rate distribution, the return error is assumed to be the Normal, Skew Normal (SN), Skew Curved Normal (SCN), and Student-t distributions. The model's parameters are estimated using the GRG Non-Linear method in Excel Solver and the ARWM method in the MCMC scheme implemented in the Scilab program. Estimation results using Excel's Solver have similar values to the estimates obtained using MCMC, concluding that Excel's Solver has a good ability in estimating the model's parameters. Based on AIC values, this study concludes that the NAGARCH(1,1) model under Student-t distribution performs the best.","PeriodicalId":475122,"journal":{"name":"IJCSAM (International Journal of Computing Science and Applied Mathematics)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136338084","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
Applications of Double Group Theory in 2D Materials 双群论在二维材料中的应用
IJCSAM (International Journal of Computing Science and Applied Mathematics) Pub Date : 2023-08-17 DOI: 10.12962/j24775401.v9i2.19206
Muhammad Yusuf Hakim Widianto, Mineo Saito
{"title":"Applications of Double Group Theory in 2D Materials","authors":"Muhammad Yusuf Hakim Widianto, Mineo Saito","doi":"10.12962/j24775401.v9i2.19206","DOIUrl":"https://doi.org/10.12962/j24775401.v9i2.19206","url":null,"abstract":"Group theory is a fundamental mathematical frame- work valuable for analyzing the band structures in materials science. The hexagonal structures have unique electronic struc- tures, especially in 2D materials in group-IV, where the system is observed as the topological insulator. Meanwhile, in the case of group-V, it is semiconductors. This paper analyzes group- IV and group-V band structures based on group theory and proposes a method to identify the irreducible representation (IR) in symmorphic systems. It is found that all materials in group- IV are topological insulators. The evaluation of Z 2 invariant v in group-V found that the phosphorene and bismuthene cases are v = 0 and v = 1 , respectively, and belong to trivial and topological insulator materials for phosphorene and bismuthene, respectively.","PeriodicalId":475122,"journal":{"name":"IJCSAM (International Journal of Computing Science and Applied Mathematics)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136338081","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
Further Results on Ph-supermagic Trees ph -超魔法树的进一步结果
IJCSAM (International Journal of Computing Science and Applied Mathematics) Pub Date : 2023-08-17 DOI: 10.12962/j24775401.v9i2.15087
Tita Khalis Maryati, Otong Suhyanto, Fawwaz Fakhrurrozi Hadiputra
{"title":"Further Results on Ph-supermagic Trees","authors":"Tita Khalis Maryati, Otong Suhyanto, Fawwaz Fakhrurrozi Hadiputra","doi":"10.12962/j24775401.v9i2.15087","DOIUrl":"https://doi.org/10.12962/j24775401.v9i2.15087","url":null,"abstract":"Let $G$ be a simple, finite, and undirected graph. An $H$-supermagic labeling is a bijective map $f : V(G) cup E(G) to {1,2,cdots,|V(G)|+|E(G)|}$ in which $f(V) = {1,2,cdots,|V(G)|}$ and there exists an integer $m$ such that $w(H') = sum_{v in V(H')} f(v) + sum_{e in E(H')} f(e) = m$, for every subgraph $H' cong H$ in $G$. In this paper, we determine some classes of trees which have $P_h$-supermagic labeling.","PeriodicalId":475122,"journal":{"name":"IJCSAM (International Journal of Computing Science and Applied Mathematics)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136338082","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
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