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<!DOCTYPE html>
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<title>John-Yao's Blog</title>
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<time class="post-time" title="2020-08-21 00:34:12" datetime="2020-08-20T16:34:12.000Z" itemprop="datePublished">2020-08-21</time>
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<a class="post-title-link" href="/2020/08/21/Aboutme/">Aboutme</a>
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My main research includes object detection, multi-object tracking, image retrieval, pedestrian reidentification. I also achieve some top rank of CVPR, ICCV and Tianchi.
Competition AwardMulti-Obje...
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<time class="post-time" title="2020-04-30 17:10:04" datetime="2020-04-30T09:10:04.000Z" itemprop="datePublished">2020-04-30</time>
<ul class="article-category-list"><li class="article-category-list-item"><a class="article-category-list-link" href="/categories/Image-Classification/">Image Classification</a></li></ul>
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<a class="post-title-link" href="/2020/04/30/Data-Augmentations-in-Image-Classification/">Data Augmentations in Image Classification</a>
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Overview 在图像分类中，数据增强是必不可少的步骤，合适的数据增强可以增加模型的泛化能力，取得更好的分类精度。本文旨在整个在图像分类任务上最近一些比较实用的方法，并给出简单的实现过程，在具体的实验中，并不能确保哪种数据增强策略是比较理想的，需要在实际的数据中合适的选择。
本文主要涉及以下数据增强策略：
Cutout
DeVries, Terrance, and Gr...
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<ul class="article-tag-list"><li class="article-tag-list-item"><a class="article-tag-list-link" href="/tags/Image-Classification-Data-Augmentation/">Image Classification, Data Augmentation</a></li></ul>
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<article id="post-map-evaluation of object detection"
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<time class="post-time" title="2019-10-13 14:40:27" datetime="2019-10-13T06:40:27.000Z" itemprop="datePublished">2019-10-13</time>
<ul class="article-category-list"><li class="article-category-list-item"><a class="article-category-list-link" href="/categories/Ojbect-Detection/">Ojbect_Detection</a></li></ul>
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<a class="post-title-link" href="/2019/10/13/map-evaluation of object detection/">Anlysis and implementation of mAP-evaluation of object detection</a>
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Abstract 目标检测中衡量识别精度的常用指标是mAP（mean average precision）。多个类别物体检测中，每一个类别都可以根据recall和precision绘制一条曲线，AP就是该曲线下的面积，mAP是多个类别AP的平均值 。
InformationCode:
https://github.com/cocodataset/cocoapi/blob/mas...
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<ul class="article-tag-list"><li class="article-tag-list-item"><a class="article-tag-list-link" href="/tags/Ojbect-Detection/">Ojbect_Detection</a></li></ul>
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<time class="post-time" title="2019-09-18 00:40:27" datetime="2019-09-17T16:40:27.000Z" itemprop="datePublished">2019-09-18</time>
<ul class="article-category-list"><li class="article-category-list-item"><a class="article-category-list-link" href="/categories/ReID/">ReID</a></li></ul>
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<a class="post-title-link" href="/2019/09/18/Reranking/">Reranking</a>
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Abstract 在图像检索过程中，或者ReID(将 Re-ID看作一个检索过程时)，re-ranking是提高其准确性的关键步骤，是各大竞赛刷榜得利器。
Re-Ranking的思想基于这么一个假设：
if a gallery image is similar to the probe in the k-reciprocal nearest...
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<ul class="article-tag-list"><li class="article-tag-list-item"><a class="article-tag-list-link" href="/tags/ReID/">ReID</a></li></ul>
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