Vision-based collective motion: A locust-inspired reductionist model DOI Creative Commons
David L. Krongauz, Amir Ayali, Gal A. Kaminka

и другие.

PLoS Computational Biology, Год журнала: 2024, Номер 20(1), С. e1011796 - e1011796

Опубликована: Янв. 29, 2024

Naturally occurring collective motion is a fascinating phenomenon in which swarming individuals aggregate and coordinate their motion. Many theoretical models of assume idealized, perfect perceptual capabilities, ignore the underlying perception processes, particularly for agents relying on visual perception. Specifically, biological vision many animals, such as locusts, utilizes monocular non-stereoscopic vision, prevents acquisition distances velocities. Moreover, peers can visually occlude each other, further introducing estimation errors. In this study, we explore necessary conditions emergence ordered under restricted conditions, using non-stereoscopic, vision. We present model vision-based locust-like agents: elongated shape, omni-directional sensor parallel to horizontal plane, lacking stereoscopic depth The addresses (i) distance velocity, (ii) presence occlusions field. consider compare three strategies that an agent may use interpret partially-occluded information at cost computational complexity required processes. Computer-simulated experiments conducted various geometrical environments (toroidal, corridor, ring-shaped arenas) demonstrate result or near-ordered state. At same time, they differ rate order achieved. results are sensitive elongation agents. Experiments geometrically constrained reveal differences between elucidate possible tradeoffs them control These suggest avenues study biology robotics.

Язык: Английский

COVID-19 sentiment analysis via deep learning during the rise of novel cases DOI Creative Commons
Rohitash Chandra,

Aswin Krishna

PLoS ONE, Год журнала: 2021, Номер 16(8), С. e0255615 - e0255615

Опубликована: Авг. 19, 2021

Social scientists and psychologists take interest in understanding how people express emotions sentiments when dealing with catastrophic events such as natural disasters, political unrest, terrorism. The COVID-19 pandemic is a event that has raised number of psychological issues depression given abrupt social changes lack employment. Advancements deep learning-based language models have been promising for sentiment analysis data from networks Twitter. Given the situation pandemic, different countries had peaks where rise fall new cases affected lock-downs which directly economy During stricter lock-downs, expressing their media. This can provide human psychology during events. In this paper, we present framework employs via long short-term memory (LSTM) recurrent neural novel India. features LSTM model global vector embedding state-of-art BERT model. We review expressed selective months 2020 covers first major peak Our utilises multi-label classification more than one be at once. results indicate majority tweets positive high levels optimism significantly lowered towards peak. predictions generally although optimistic, significant group population annoyed way was handled by authorities.

Язык: Английский

Процитировано

114

A Survey on Applications of Artificial Intelligence in Fighting Against COVID-19 DOI Open Access
Jianguo Chen, Kenli Li, Zhaolei Zhang

и другие.

ACM Computing Surveys, Год журнала: 2021, Номер 54(8), С. 1 - 32

Опубликована: Окт. 4, 2021

The COVID-19 pandemic caused by the SARS-CoV-2 virus has spread rapidly worldwide, leading to a global outbreak. Most governments, enterprises, and scientific research institutions are participating in struggle curb of pandemic. As powerful tool against COVID-19, artificial intelligence (AI) technologies widely used combating this In survey, we investigate main scope contributions AI from aspects disease detection diagnosis, virology pathogenesis, drug vaccine development, epidemic transmission prediction. addition, summarize available data resources that can be for AI-based research. Finally, challenges potential directions fighting discussed. Currently, mainly focuses on medical image inspection, genomics, prediction, thus still great field. This survey presents researchers with comprehensive view existing applications technology goal inspiring continue maximize advantages big fight COVID-19.

Язык: Английский

Процитировано

112

Cascaded deep learning classifiers for computer-aided diagnosis of COVID-19 and pneumonia diseases in X-ray scans DOI Creative Commons
Mohamed Esmail Karar, Ezz El‐Din Hemdan,

Marwa A. Shouman

и другие.

Complex & Intelligent Systems, Год журнала: 2020, Номер 7(1), С. 235 - 247

Опубликована: Сен. 22, 2020

Computer-aided diagnosis (CAD) systems are considered a powerful tool for physicians to support identification of the novel Coronavirus Disease 2019 (COVID-19) using medical imaging modalities. Therefore, this article proposes new framework cascaded deep learning classifiers enhance performance these CAD highly suspected COVID-19 and pneumonia diseases in X-ray images. Our proposed constitutes two major advancements as follows. First, complicated multi-label classification images have been simplified series binary each tested case health status. That mimics clinical situation diagnose potential patient. Second, architecture is flexible use different fine-tuned models simultaneously, achieving best confirming infected cases. This study includes eleven pre-trained convolutional neural network models, such Visual Geometry Group Network (VGG) Residual Neural (ResNet). They successfully evaluated on public image dataset normal three diseased The results showed that VGG16, ResNet50V2, Dense (DenseNet169) achieved detection accuracy COVID-19, viral (Non-COVID-19) pneumonia, bacterial images, respectively. Furthermore, our superior other methods previous studies. presents good option be applied routine assist diagnostic procedures infection.

Язык: Английский

Процитировано

133

Modelling and forecasting of COVID-19 spread using wavelet-coupled random vector functional link networks DOI Open Access
Barenya Bikash Hazarika, Deepak Gupta

Applied Soft Computing, Год журнала: 2020, Номер 96, С. 106626 - 106626

Опубликована: Авг. 13, 2020

Язык: Английский

Процитировано

113

Time series forecasting of COVID-19 transmission in Asia Pacific countries using deep neural networks DOI Creative Commons
Hafiz Tayyab Rauf, M. Ikram Ullah Lali, Muhammad Attique Khan

и другие.

Personal and Ubiquitous Computing, Год журнала: 2021, Номер 27(3), С. 733 - 750

Опубликована: Янв. 10, 2021

Язык: Английский

Процитировано

94

An approach to forecast impact of Covid‐19 using supervised machine learning model DOI Open Access
Senthilkumar Mohan,

A John,

Ahed Abugabah

и другие.

Software Practice and Experience, Год журнала: 2021, Номер 52(4), С. 824 - 840

Опубликована: Апрель 1, 2021

Abstract The Covid‐19 pandemic has emerged as one of the most disquieting worldwide public health emergencies 21st century and thrown into sharp relief, among other factors, dire need for robust forecasting techniques disease detection, alleviation well prevention. Forecasting been powerful statistical methods employed world over in various disciplines detecting analyzing trends predicting future outcomes based on which timely mitigating actions can be undertaken. To that end, several machine learning have harnessed depending upon analysis desired availability data. Historically speaking, predictions thus arrived at short term country‐specific nature. In this work, multimodel technique is called EAMA related parameters long‐term both within India a global scale proposed. This proposed hybrid model well‐suited to past present For study, two datasets from Ministry Health & Family Welfare Worldometers, respectively, exploited. Using these datasets, data outlined, observed predicted being very similar real‐time values. experiment also conducted statewise countrywise across it included Appendix.

Язык: Английский

Процитировано

90

Machine learning research towards combating COVID-19: Virus detection, spread prevention, and medical assistance DOI Creative Commons
Osama Shahid, Mohammad Nasajpour, Seyedamin Pouriyeh

и другие.

Journal of Biomedical Informatics, Год журнала: 2021, Номер 117, С. 103751 - 103751

Опубликована: Март 24, 2021

Язык: Английский

Процитировано

69

Accurate detection of Covid-19 patients based on Feature Correlated Naïve Bayes (FCNB) classification strategy DOI Creative Commons

Nehal A. Mansour,

Ahmed I. Saleh, Mahmoud Badawy

и другие.

Journal of Ambient Intelligence and Humanized Computing, Год журнала: 2021, Номер 13(1), С. 41 - 73

Опубликована: Янв. 15, 2021

Язык: Английский

Процитировано

61

A Review of the Machine Learning Algorithms for Covid-19 Case Analysis DOI Open Access
Shrikant Tiwari, Prasenjit Chanak, Sanjay Kumar Singh

и другие.

IEEE Transactions on Artificial Intelligence, Год журнала: 2022, Номер 4(1), С. 44 - 59

Опубликована: Янв. 11, 2022

The purpose of this article is to see how machine learning (ML) algorithms and applications are used in the COVID-19 inquiry for other purposes. available traditional methods international epidemic prediction, researchers authorities have given more attention simple statistical epidemiological methodologies. inadequacy absence medical testing diagnosing identifying a solution one key challenges preventing spread COVID-19. A few statistical-based improvements being strengthened answer challenge, resulting partial resolution up certain level. ML advocated wide range intelligence-based approaches, frameworks, equipment cope with issues industry. application inventive structure, such as handling relevant outbreak difficulties, has been investigated article. major goal 1) Examining impact data type nature, well obstacles processing 2) Better grasp importance intelligent approaches like pandemic. 3) development improved types prognosis. 4) effectiveness influence various strategies 5) To target on potential diagnosis order motivate academics innovate expand their knowledge research into additional COVID-19-affected industries.

Язык: Английский

Процитировано

51

Machine Learning-Based Research for COVID-19 Detection, Diagnosis, and Prediction: A Survey DOI Open Access
Yassine Meraihi, Asma Benmessaoud Gabis, Seyedali Mirjalili

и другие.

SN Computer Science, Год журнала: 2022, Номер 3(4)

Опубликована: Май 12, 2022

Язык: Английский

Процитировано

51