Tag Archives: python

Use mxnet to classify images of birds (second episode)

Using one convolutional-layer and two fully-connected-layers cost too much memory and also have bad performance for training, therefore I modify the model to two convolutional-layers and two narrow fully-connected-layers:

and training it by using learning rate “0.1” instead of “0.01” which may cause “overfit” in neural network. Finally, the… Read more »

Use mxnet to classify images of birds (first episode)

Recently, I was trying to classify images of birds by using machine learning technology. The most familiar deep learning library for me is the mxnet, so I use its python interface to build my Birds-Classification-System. For having not sufficient number of images for all kinds of bird, I just collect… Read more »

The type of variables in Python

Haven’t written python code for more than one year, I met this simple problem:

Even the code have print out the value of “a” and “b” as 2 and 1, the condition check “if a >= b:” is false! Spending more than 10 minutes, I eventually get the reason:… Read more »

A example of Mesos Python Framework to calculate Pi

I have written an example of Mesos Framework by python. It simply calculate “Pi” by using Mento-Carlo algorithm The whole source code is at https://github.com/RobinDong/mesos-python-examples/tree/master/calculate_pi At beginning, I use python threading in “launchTask()”:

But I found out that the executors only spend a small part of CPU resource in… Read more »

Override the __init__ of BaseHTTPRequestHandler in python

Currently, I am writing some python program for the front of our storage system. By using ‘BaseHTTPRequestHandler’ and ‘ThreadedHTTPServer’, we could implement a simple multi-thread http server quickly. But after add ‘__init__()’ for our ‘MyHandler’, it doesn’t work correctly now:

Then I found this statement in python docs:

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