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Lanzhou Jiao Tong University

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Selected work

Representative Papers

Balancing multiscale similarity and cartographic constraints: A similarity-driven optimization framework for line generalization

Jul 28, 2026

This study addresses the challenge that existing automated map generalization methods struggle to jointly preserve spatial similarity and cartographic legibility across multiple scales, often treating similarity assessment, constraint modeling, and parameter optimization in isolation. To overcome this limitation, the authors propose a unified similarity-driven framework that formulates map generalization as a constrained multi-scale similarity optimization problem. For the first time, geometric, structural, and learned similarity measures are integrated into the objective function, while cartographic constraints—including legibility, smoothness, and geometric validity—are incorporated through line simplification algorithms. Experimental results demonstrate that the approach adaptively and consistently optimizes parameter configurations across diverse algorithms and scales, achieving high-quality map abstraction that maintains spatial similarity while significantly improving the interpretability and generalizability of parameter control.

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MRS-YOLO Railroad Transmission Line Foreign Object Detection Based on Improved YOLO11 and Channel Pruning

Oct 12, 2025

To address high false-negative and false-positive rates, as well as low inference efficiency in foreign object detection on railway transmission lines, this paper proposes MRS-YOLO—a YOLO11-based detector. It introduces the C3k2_MAKDF module for multi-scale adaptive kernel deep feature fusion, an RCFPN (re-calibrated feature pyramid network) architecture, and an SC_Detect head enabling spatial-channel collaborative localization. Additionally, channel pruning is integrated for model lightweighting. Experiments on a custom railway foreign object dataset show that MRS-YOLO achieves mAP₅₀ = 94.8% and mAP₅₀:₉₅ = 86.4%, outperforming the baseline by 0.7 and 2.3 percentage points, respectively. Model parameters and computational cost (GFLOPs) are reduced by 44.2% and 17.5%, significantly enhancing small-object detection accuracy and edge-deployment efficiency.

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Latest Papers

Balancing multiscale similarity and cartographic constraints: A similarity-driven optimization framework for line generalization

Jul 28, 2026

This study addresses the challenge that existing automated map generalization methods struggle to jointly preserve spatial similarity and cartographic legibility across multiple scales, often treating similarity assessment, constraint modeling, and parameter optimization in isolation. To overcome this limitation, the authors propose a unified similarity-driven framework that formulates map generalization as a constrained multi-scale similarity optimization problem. For the first time, geometric, structural, and learned similarity measures are integrated into the objective function, while cartographic constraints—including legibility, smoothness, and geometric validity—are incorporated through line simplification algorithms. Experimental results demonstrate that the approach adaptively and consistently optimizes parameter configurations across diverse algorithms and scales, achieving high-quality map abstraction that maintains spatial similarity while significantly improving the interpretability and generalizability of parameter control.

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MRS-YOLO Railroad Transmission Line Foreign Object Detection Based on Improved YOLO11 and Channel Pruning

Oct 12, 2025

To address high false-negative and false-positive rates, as well as low inference efficiency in foreign object detection on railway transmission lines, this paper proposes MRS-YOLO—a YOLO11-based detector. It introduces the C3k2_MAKDF module for multi-scale adaptive kernel deep feature fusion, an RCFPN (re-calibrated feature pyramid network) architecture, and an SC_Detect head enabling spatial-channel collaborative localization. Additionally, channel pruning is integrated for model lightweighting. Experiments on a custom railway foreign object dataset show that MRS-YOLO achieves mAP₅₀ = 94.8% and mAP₅₀:₉₅ = 86.4%, outperforming the baseline by 0.7 and 2.3 percentage points, respectively. Model parameters and computational cost (GFLOPs) are reduced by 44.2% and 17.5%, significantly enhancing small-object detection accuracy and edge-deployment efficiency.

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