VALSE

VALSE 首页 活动通知 查看内容

VALSE 论文速览 第110期:Towards Fewer Annotations

2023-4-21 11:03| 发布者: 程一-计算所| 查看: 701| 评论: 0

摘要: 为了使得视觉与学习领域相关从业者快速及时地了解领域的最新发展动态和前沿技术进展,VALSE最新推出了《论文速览》栏目,将在每周发布一至两篇顶会顶刊论文的录制视频,对单个前沿工作进行细致讲解。本期VALSE论文速 ...

为了使得视觉与学习领域相关从业者快速及时地了解领域的最新发展动态和前沿技术进展,VALSE最新推出了《论文速览》栏目,将在每周发布一至两篇顶会顶刊论文的录制视频,对单个前沿工作进行细致讲解。本期VALSE论文速览选取了来自北京理工大学在主动域自适应 (Active Domain Adaptation)方向的工作。该工作由李爽老师指导,论文一作谢斌辉同学录制。


论文题目:Towards Fewer Annotations: Active Learning via Region Impurity and Prediction Uncertainty for Domain Adaptive Semantic Segmentation

作者列表:谢斌辉 (北理工)、袁龙辉 (北理工)、李爽 (北理工)、刘驰 (北理工)、程新景 (嬴彻科技)

B站观看网址:

https://www.bilibili.com/video/BV1Xo4y1j7KR/


论文摘要:

Self-training has greatly facilitated domain adaptive semantic segmentation, which iteratively generates pseudo labels on unlabeled target data and retrains the network. However, realistic segmentation datasets are highly imbalanced, pseudo labels are typically biased to the majority classes and basically noisy, leading to an error-prone and suboptimal model. In this paper, we propose a simple region-based active learning approach for semantic segmentation under a domain shift, aiming to automatically query a small partition of image regions to be labeled while maximizing segmentation performance. Our algorithm, Region Impurity and Prediction Uncertainty (RIPU), introduces a new acquisition strategy characterizing the spatial adjacency of image regions along with the prediction confidence. We show that the proposed region-based selection strategy makes more efficient use of a limited budget than image-based or point-based counterparts. Further, we enforce local prediction consistency between a pixel and its nearest neighbors on a source image. Alongside this, we develop a negative learning loss to make the features more discriminative. Extensive experiments demonstrate that our method only requires very few annotations to almost reach the supervised performance and substantially outperforms state-of-the-art methods.


论文信息:

[1] Binhui Xie, Longhui Yuan, Shuang Li, Chi Harold Liu, Xinjing Cheng. Towards Fewer Annotations: Active Learning via Region Impurity and Prediction Uncertainty for Domain Adaptive Semantic Segmentation. CVPR 2022: 8058-8068.


论文链接:

[https://arxiv.org/abs/2111.12940]


代码链接:

[https://github.com/BIT-DA/RIPU]


视频讲者简介:

谢斌辉,北京理工大学计算机学院博士生,导师李爽老师。研究兴趣集中在视觉任务中的领域适应、主动学习和自监督学习。在T-PAMI、TKDE、CVPR、AAAI等顶级期刊和会议发表多篇论文,担任多个学术会议和期刊的审稿人 (TPAMI、ICLR、CVPR、ICCV、ECCV、AAAI等)。



特别鸣谢本次论文速览主要组织者:

月度轮值AC:林迪 (天津大学)、郑乾 (浙江大学)


活动参与方式

1、VALSE每周举行的Webinar活动依托B站直播平台进行,欢迎在B站搜索VALSE_Webinar关注我们!

直播地址:

https://live.bilibili.com/22300737;

历史视频观看地址:

https://space.bilibili.com/562085182/ 


2、VALSE Webinar活动通常每周三晚上20:00进行,但偶尔会因为讲者时区问题略有调整,为方便您参加活动,请关注VALSE微信公众号:valse_wechat 或加入VALSE QQ S群,群号:317920537);


*注:申请加入VALSE QQ群时需验证姓名、单位和身份缺一不可。入群后,请实名,姓名身份单位。身份:学校及科研单位人员T;企业研发I;博士D;硕士M。


3、VALSE微信公众号一般会在每周四发布下一周Webinar报告的通知。


4您也可以通过访问VALSE主页:http://valser.org/ 直接查看Webinar活动信息。Webinar报告的PPT(经讲者允许后),会在VALSE官网每期报告通知的最下方更新。

小黑屋|手机版|Archiver|Vision And Learning SEminar

GMT+8, 2024-3-29 08:23 , Processed in 0.016227 second(s), 14 queries .

Powered by Discuz! X3.4

Copyright © 2001-2020, Tencent Cloud.

返回顶部