Events dataset for image sanitization

Overview Datasets introduced in "Semi-Supervised Feature Embedding for Data Sanitization in Real-World Events" It includes the links for the images that consist of the five datasets. NotreDame: Remarkable partial destruction of the Parisian Cathedral by a fire in 2019. Grenfell: 2017 tragic fire incident in the Grenfell Tower in London. NationalMuseum: Total destruction of the National Museum in Brazil by flames in 2018. BangladeshFire: Fast-moving fire in a district in Dhaka, that took place in 2019. BostonMarathon: 2013 terrorist attack on the traditional Bostonian event. Observations: We did not publish the links for the positive images for the Grenfell dataset due to copyright reasons. BostonMarathon and Grenfell negative sets are pictures from the Flickr100k dataset. Since BostonMarathon positive samples contain frames from YouTube videos, we published the YouTube video URL and the frame number that was extracted. BostonMarathon positive sample contains augmentations, which are crops sized half of the original image. In this sense, columns i and j indicate the upper-left pixel of the crop. For example, if the image is a × b, the crop will be the square between the points: (j, i), (j + a/2, i), (j, i + b/2), and (j + a/2, i + b/2). Media Content Due to the terms of use from the social networks, we do not make publicly available the texts, images, and videos that were collected (only the links). However, we can provide some additional media content related to one (or more) events upon request by contacting the authors.

概述
本数据集系《真实世界事件中数据净化的半监督特征嵌入》（Semi-Supervised Feature Embedding for Data Sanitization in Real-World Events）一文所引入，包含构成五个子数据集的图像链接。
NotreDame：2019年巴黎圣母院因火灾发生显著部分损毁的事件。
Grenfell：2017年伦敦格伦费尔塔（Grenfell Tower）的悲剧性火灾事件。
NationalMuseum：2018年巴西国家博物馆被大火完全烧毁的事件。
BangladeshFire：2019年达卡某地区发生的快速蔓延火灾事件。
BostonMarathon：2013年针对波士顿传统赛事的恐怖袭击事件。

观察说明
因版权原因，未发布Grenfell数据集的正样本图像链接。
BostonMarathon与Grenfell的负样本集均源自Flickr100k数据集。
鉴于BostonMarathon的正样本包含来自YouTube视频的帧，我们发布了对应的YouTube视频URL及提取的帧编号。
BostonMarathon的正样本包含增强数据，即尺寸为原始图像一半的裁剪图。在此情况下，列i与j表示裁剪图的左上角像素坐标。例如，若原始图像尺寸为a×b，则裁剪区域为以下四点构成的正方形：(j,i)、(j+a/2,i)、(j,i+b/2)及(j+a/2,i+b/2)。

媒体内容
受社交网络使用条款限制，我们未公开提供所收集的文本、图像及视频（仅提供链接）。但可应请求通过联系作者获取与一个或多个事件相关的额外媒体内容。