原创 方向梯度直方圖（HOG）
1.介紹 HOG（Histogram of Oriented Gradient）是2005年CVPR會議上，法國國家計算機科學及自動控制研究所的Dalal等人提出的一種解決人體目標檢測的圖像描述子，該方法使用梯度方向直方圖（Histog
2020-06-15 20:18:29
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原创 batch size, mini-batch, iterations and epoch
Gradient descent is an iterative algorithm which computes the gradient of a function and uses it to update the parame
2020-06-15 20:18:29
原创 論文閱讀筆記 -- ParsingNet
ParseNet: Looking Wider to See Better The FCN approach can be thought of as sliding an classification network aroun
2020-06-15 20:18:29
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原创 Normalization vs Regularization in Machine or Deep learning
Normalisation adjusts the data; regularisation adjusts the prediction function. It is well-known that normalizing the i
2020-06-15 20:18:29
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原创 Logisitc Regrssion vs linear SVM
Given a binary classification problem, the goal is to find the “best” line that has the maximum probability of classify
2020-06-15 20:18:29
原创 python multiprocessing 中imap和map的不同
本篇文章講python的multiprocessing中 imap、map、imap_unordered和map_async方法之間的區別。參考鏈接 主要有以下兩個區別： 它們使用你傳遞給它們的可迭代的對象的方式。 它們返回結果的方式。
2020-05-01 05:34:19
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原创 h5py vs npy/npz
Data engineering for computer vision Lately, I've been thinking hard about the best way to organize my data before feed
2020-05-01 05:34:19
原创 map vs imap in multiprocessing.Pool
There are two key differences between imap/imap_unordered and map/map_async: The way they consume the iterable you pass
2020-04-14 20:35:32
原创 Group Normalization vs Batch Normalization
BN 存在哪些問題： 1. BN 依賴大batch size, 當 batch size 太小時， batch statistics 變得不準確； 而顯存限制了batch size變大，尤其在檢測、分割等比較佔用顯存的模型上。 batch
2020-03-04 07:18:46
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原创 Histogram of Oriented Gradients
Histogram of Oriented Gradients DECEMBER 6, 2016 BY SATYA MALLICK In this post, we will learn the details of the
2020-02-22 08:52:30
原创 Different types of SVM -- opencv
They are different formulations of SVM. At the heart of SVM is an mathematical optimization problem. This problem can
2020-02-22 08:52:30
原创 Linear Kernel: Why is it recommended for text classification ?
The Support Vector Machine can be viewed as a kernel machine. As a result, you can change its behavior by using a diff
2020-02-22 08:52:30
原创 argparse
1) argparse是python用於解析命令行參數和選項的標準模塊，用於代替已經過時的optparse模塊。 例如 python parseTest.py input.txt output.txt --user=name --po
2019-03-06 15:01:23
原创 How a Kalman filter works, in pictures
I have to tell you about the Kalman filter, because what it does is pretty damn amazing. Surprisingly few softw
2018-09-03 19:05:23
原创 Spatial Transformer Network
STN架構中，分爲三個部分： Localisation netGrid generatorSampler Localisation net 把feature map U作爲輸入，過連續若干層計算（如卷積、FC等），迴歸出參數
2018-09-03 19:05:21