1,504 research outputs found
Repulsion Loss: Detecting Pedestrians in a Crowd
Detecting individual pedestrians in a crowd remains a challenging problem
since the pedestrians often gather together and occlude each other in
real-world scenarios. In this paper, we first explore how a state-of-the-art
pedestrian detector is harmed by crowd occlusion via experimentation, providing
insights into the crowd occlusion problem. Then, we propose a novel bounding
box regression loss specifically designed for crowd scenes, termed repulsion
loss. This loss is driven by two motivations: the attraction by target, and the
repulsion by other surrounding objects. The repulsion term prevents the
proposal from shifting to surrounding objects thus leading to more crowd-robust
localization. Our detector trained by repulsion loss outperforms all the
state-of-the-art methods with a significant improvement in occlusion cases.Comment: Accepted to IEEE Conference on Computer Vision and Pattern
Recognition (CVPR) 201
Aseismic Study on Mountain Tunnels in High-Intensity Seismic Area
The chapter discusses the antiseismic and shock absorption study on the mountain tunnels in high-seismic intensity areas using numerical analysis and shaking table test for recent years and proposes the seismic challenges of tunnel design in Sichuan-Tibet Railway. The aseismic design of the tunnel entrance and the inner part in the fracture zone are presented according to the previous research results
A state-space based method to predict thermal performance of pipeembedded double skin façade: case study in Guangzhou
Pipe-embedded double skin facade, which arranges pipes in shading device, is an alternative to reduce indoor demand and save energy. To simulate annual performance of this system, a simplified approach based on optical and thermal property is proposed at first, in which dynamic performance is acquired through state-space method. Then the model is validated with former investigation and shows good accuracy. Indoor room temperature with the pipe-embedded double skin façade is analyzed under different types of room in Guangzhou at last. Results show that the pipe-embedded double skin façade could guarantee a barely satisfactory indoor environment where indoor heat gain is small in most time. Besides, superiority would be obvious when solar radiation is strong, indicating the applicability in some typical region with abundant sunshine
InfeRE: Step-by-Step Regex Generation via Chain of Inference
Automatically generating regular expressions (abbrev. regexes) from natural
language description (NL2RE) has been an emerging research area. Prior studies
treat regex as a linear sequence of tokens and generate the final expressions
autoregressively in a single pass. They did not take into account the
step-by-step internal text-matching processes behind the final results. This
significantly hinders the efficacy and interpretability of regex generation by
neural language models. In this paper, we propose a new paradigm called InfeRE,
which decomposes the generation of regexes into chains of step-by-step
inference. To enhance the robustness, we introduce a self-consistency decoding
mechanism that ensembles multiple outputs sampled from different models. We
evaluate InfeRE on two publicly available datasets, NL-RX-Turk and KB13, and
compare the results with state-of-the-art approaches and the popular tree-based
generation approach TRANX. Experimental results show that InfeRE substantially
outperforms previous baselines, yielding 16.3% and 14.7% improvement in DFA@5
accuracy on two datasets, respectively. Particularly, InfeRE outperforms the
popular tree-based generation approach by 18.1% and 11.3% on both datasets,
respectively, in terms of DFA@5 accuracy.Comment: This paper has been accepted by ASE'2
Research on the Movement Law of Gravel under Water Based on the Principle of Audio Analysis
Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchive
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