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Community detection is a discovery tool used by network scientists to analyze the structure of real-world networks. It seeks to identify natural divisions that may exist in the input networks that partition the vertices into coherent…

Social and Information Networks · Computer Science 2019-09-24 Neda Zarayeneh , Ananth Kalyanaraman

Live fish recognition is one of the most crucial elements of fisheries survey applications where vast amount of data are rapidly acquired. Different from general scenarios, challenges to underwater image recognition are posted by poor image…

Computer Vision and Pattern Recognition · Computer Science 2016-03-08 Meng-Che Chuang , Jenq-Neng Hwang , Kresimir Williams

Fish detection in water-land transfer has significantly contributed to the fishery. However, manual fish detection in crowd-collaboration performs inefficiently and expensively, involving insufficient accuracy. To further enhance the…

Robotics · Computer Science 2024-10-01 Shengchen Li , Haobo Zuo , Changhong Fu , Zhiyong Wang , Zhiqiang Xu

Non-extractive fish abundance estimation with the aid of visual analysis has drawn increasing attention. Unstable illumination, ubiquitous noise and low frame rate video capturing in the underwater environment, however, make conventional…

Computer Vision and Pattern Recognition · Computer Science 2015-04-16 Meng-Che Chuang , Jenq-Neng Hwang , Kresimir Williams , Richard Towler

Coral reefs are fast-changing and complex ecosystems that are crucial to monitor and study. Biological hotspot detection can help coral reef managers prioritize limited resources for monitoring and intervention tasks. Here, we explore the…

Robotics · Computer Science 2024-02-05 Daniel Yang , Levi Cai , Stewart Jamieson , Yogesh Girdhar

Automated fish documentation processes are in the near future expected to play an essential role in sustainable fisheries management and for addressing challenges of overfishing. In this paper, we present a novel and publicly available…

Computer Vision and Pattern Recognition · Computer Science 2025-01-08 Stefan Hein Bengtson , Daniel Lehotský , Vasiliki Ismiroglou , Niels Madsen , Thomas B. Moeslund , Malte Pedersen

We presents in this paper a novel fish classification methodology based on a combination between robust feature selection, image segmentation and geometrical parameter techniques using Artificial Neural Network and Decision Tree. Unlike…

Computer Vision and Pattern Recognition · Computer Science 2009-12-08 Mutasem Khalil Sari Alsmadi , Khairuddin Bin Omar , Shahrul Azman Noah , Ibrahim Almarashdah

Assessing fish freshness is vital for ensuring food safety and minimizing economic losses in the seafood industry. However, traditional sensory evaluation remains subjective, time-consuming, and inconsistent. Although recent advances in…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Phi-Hung Hoang , Nam-Thuan Trinh , Van-Manh Tran , Thi-Thu-Hong Phan

Coral reef monitoring in the Western Indian Ocean is limited by the labor demands of underwater visual censuses. This work evaluates a YOLOv8-based deep learning pipeline for automating family-level fish identification from video transects…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Jules Gerard , Leandro Di Bella , Filip Huyghe , Marc Kochzius

The proliferation of floating anthropogenic debris in rivers has emerged as a pressing environmental concern, exerting a detrimental influence on biodiversity, water quality, and human activities such as navigation and recreation. The…

Computer Vision and Pattern Recognition · Computer Science 2025-10-29 Gauthier Grimmer , Romain Wenger , Clément Flint , Germain Forestier , Gilles Rixhon , Valentin Chardon

Modern computing has enhanced our understanding of how social interactions shape collective behaviour in animal societies. Although analytical models dominate in studying collective behaviour, this study introduces a deep learning model to…

Machine Learning · Computer Science 2024-03-19 Vaios Papaspyros , Ramón Escobedo , Alexandre Alahi , Guy Theraulaz , Clément Sire , Francesco Mondada

We have recently introduced an efficient method for the detection and identification of modules in complex networks, based on the de-synchronization properties (dynamical clustering) of phase oscillators. In this paper we apply the…

Populations and Evolution · Quantitative Biology 2009-11-13 Alessandro Pluchino , Andrea Rapisarda , Vito Latora

Accurate fish segmentation in underwater videos is challenging due to low visibility, variable lighting, and dynamic backgrounds, making fully-supervised methods that require manual annotation impractical for many applications. This paper…

Computer Vision and Pattern Recognition · Computer Science 2025-02-27 Alzayat Saleh , Marcus Sheaves , Dean Jerry , Mostafa Rahimi Azghadi

Marine ecosystems are vital for the planet's health, but human activities such as climate change, pollution, and overfishing pose a constant threat to marine species. Accurate classification and monitoring of these species can aid in…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Kohav Dey , Krishna Bajaj , K S Ramalakshmi , Samuel Thomas , Sriram Radhakrishna

Behavior analysis of animals involves the observation of intraspecific and interspecific interactions among various organisms in the environment. Collective behavior such as herding in farm animals, flocking of birds, and shoaling and…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Riza Rae Pineda , Kristofer delas Peñas , Dana Manogan

Jellyfish, a diverse group of gelatinous marine organisms, play a crucial role in maintaining marine ecosystems but pose significant challenges for biodiversity and conservation due to their rapid proliferation and ecological impact.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-16 Md. Sabbir Hossen , Md. Saiduzzaman , Pabon Shaha , Mostofa Kamal Nasir

Wildlife monitoring is crucial to nature conservation and has been done by manual observations from motion-triggered camera traps deployed in the field. Widespread adoption of such in-situ sensors has resulted in unprecedented data volumes…

Computer Vision and Pattern Recognition · Computer Science 2020-09-25 Sayali Kulkarni , Tomer Gadot , Chen Luo , Tanya Birch , Eric Fegraus

The quantification of positively buoyant marine plastic debris is critical to understanding how plastic litter accumulates across the world's oceans and is also crucial to identifying hotspots for targeted cleanup efforts. Currently, the…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Gautam Tata , Sarah-Jeanne Royer , Olivier Poirion , Jay Lowe

Biodiversity conservation depends on accurate, up-to-date information about wildlife population distributions. Motion-activated cameras, also known as camera traps, are a critical tool for population surveys, as they are cheap and…

Machine Learning · Computer Science 2019-10-23 Mohammad Sadegh Norouzzadeh , Dan Morris , Sara Beery , Neel Joshi , Nebojsa Jojic , Jeff Clune

Our understanding and ability to effectively monitor and manage coastal ecosystems are severely limited by observation methods. Automatic recognition of species in natural environment is a promising tool which would revolutionize video and…

Computer Vision and Pattern Recognition · Computer Science 2019-04-08 Erlend Olsvik , Christian M. D. Trinh , Kristian Muri Knausgård , Arne Wiklund , Tonje Knutsen Sørdalen , Alf Ring Kleiven , Lei Jiao , Morten Goodwin