YYobsan B. Leta
Research output

Publications

Work on robust visual perception, efficient learning, probabilistic modeling, and edge computing. Published under Yobsan Bayisa Leta and Leta Yobsan Bayisa.

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9 publications

BMVC 2026

LiDSeg: Linear DehazeFormer Guidance for Efficient Semantic Segmentation in Adverse Weather Conditions

Yobsan Bayisa Leta, Christos Kyrkou, Maria K. Michael, Theocharis Theocharides

British Machine Vision Conference (BMVC) · In press · 2026

Research summary

LiDSeg adds a lightweight guidance encoder to semantic segmentation models for adverse weather. Auxiliary image reconstruction supports training; at inference, the reconstruction decoder is removed while the guidance encoder and gated fusion remain. The framework supports multiple segmentation backbones and evaluation across fog, rain, snow, and night conditions.

IEEE ICC 2025

HAC-LSTM: Mobility-Aware Joint Service Placement and Task Offloading Scheme in MEC

Surafel Kifetew Woldeyes, Yongmin Zhang, Wei Wang, Leta Yobsan Bayisa

ICC 2025 - IEEE International Conference on Communications · 2025

Research summary

A mobility-aware approach to joint service placement and task offloading in mobile edge computing. This work studies how service decisions can account for changing mobility patterns.

Journal of Big Data

Online variational Gaussian process for time series data

Weidong Wang, Mian Muhammad Yasir Khalil, Leta Yobsan Bayisa

Journal of Big Data · 2024

Research summary

Research on online variational Gaussian processes for time-series data, extending probabilistic modeling to observations that arrive over time.

IJMLC 2024

Unified deep learning model for multitask representation and transfer learning: image classification, object detection, and image captioning

Leta Yobsan Bayisa, Weidong Wang, Qingxian Wang, Chiagoziem C. Ukwuoma, Hirpesa Kebede Gutema, Ahmed Endris, Turi Abu

International Journal of Machine Learning and Cybernetics · 2024

Research summary

A shared deep learning framework for image classification, object detection, and image captioning. The work explores multitask representations and transfer learning across visual and language tasks.

IEEE ICCWAMTIP 2021

Shared Weighted Continuous Wavelet Capsule Network for Electrocardiogram Biometric Identification

Happy Nkanta Monday, Jian Ping Li, Grace Ugochi Nneji, Edidiong Christopher James, Yobsan Bayisa Leta, Saifun Nahar, Amin Ul Haq

2021 18th International Computer Conference on Wavelet Active Media Technology and Information Processing (ICCWAMTIP) · 2021

Research summary

A continuous wavelet and capsule-network approach to biometric identification from electrocardiogram signals.

ACM ICCIP 2021

COVID-19 Identification Using Deep Capsule Network: A Perspective of Super-Resolution CNN on Low-Quality CXR Images

Grace U. Nneji, Jingye Cai, Jianhua Deng, Happy N. Monday, Edidiong C. James, Bona D. Lemessa, Abel Z. Yutra, Yobsan B. Leta, Saifun Nahar

2021 the 7th International Conference on Communication and Information Processing (ICCIP) · 2021

Research summary

Research combining super-resolution convolutional processing and capsule networks for COVID-19 identification in low-quality chest X-ray images.

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