Linux kernel, its 29-year history report
2020/08/25, [Linux Foundation](https://www.linuxfoundation.org/) [2020 Linux Kernel History Report](https://www.linuxfoundation.org/blog/2020/08/download-the -2020-linux-kernel-history-report /) has
How to compare time series data-Derivative DTW, DTW-
## **wrap up** * Purpose: Measure the similarity of different time series data * Keywords: Dynamic Time Warping (DTW), Derivative Dynamic Time Warping (DDTW) * Reference 1: [Derivative DTW ~ Metho
Specify the volume on linux and make a sound
amixer -c0 sset PCM 60% && aplay --duration=2 a.wav amixer -c0 sset PCM 70% && aplay --duration=2 a.wav amixer -c0 sset PCM 80% && aplay --duration=2 a.wav amixer -c0 sset PCM 85% && aplay --duration=
AtCoder Beginner Contest 178 Review
# This time's results  # Impressions of this time
About Linux llist (Lock-less NULL terminated single linked list)
An analysis note about a unidirectional list that does not require the use of locks (depending on the conditions) introduced by Huang Ying of Intel. # What is List? You can operate the list in par
Python + Unity Reinforcement learning environment construction
Building an environment to run ML-Agent with Python ## usage environment Python 3.7.6 mlagents 0.17.0 ML-Agents Release3 Unity 2019.2.21f1 Pyenv Poetry ## Prerequisites Download Unity Hub ### 1.
Pydroid 3 --I tried OpenCV and TensorFlow options for IDE for Python 3 (Android)
[Pydroid 3 --IDE for Python 3](https://play.google.com/store/apps/details?id=ru.iiec.pydroid3) is Python that runs on Android, but is compatible with Python on your PC. Highly GUI programs such as tk
Implementation of object authenticity judgment condition using __bool__ method
#### **`reserve_bool.py`** ```py import math class Coordinate: def __init__(self, x, y): self.x = x self.y = y def __bool__(self): print('__bool__') return
How to reflect ImageField in Django + Docker (pillow)
# Introduction In this article, I would like to write about the error that I actually suffered when reflecting "Image Field" through a solution. kadaikun.Image.image: (fields.E210) Cannot use ImageF
Git command super abbreviated version
We have summarized the minimum commands for operating Git from a Linux (Ubuntu) terminal. # clone ```shell git clone (URL) ``` # Commit relationship Basic repeat of this * Move to the directory to
Python3 | Lists, Tuples, Dictionaries
# list * Multiple values can be combined * Use __ [](brackets in brackets) __ * Separate each element with, (comma) ```python a = [apple, banana, orange] ``` ## Extraction of each element Each e
Integrated Development Environment (IDE) vs. Virtual environment
## Introduction I suddenly noticed something. "After all, what is ** environment **?" When I looked it up, I found that I didn't understand it properly, so I decided to keep it as a memorandum.
Docker command super abbreviated version
We have summarized the minimum commands from terminal to container creation to dockerhub repository creation. ### Image creation * Use cd to move to the directory containing the docker file in advan
How to measure mp3 file playback time with python
There are two ways to get the duration of an mp3 file. One is to use mutagen and the other is to use pysox. Each method has its strengths and weaknesses. The mutagen method is lighter and faster
Dictionary type 1
# Dictionary type Dictionary type A dictionary type is a data type that manages a set of data together with an identifier called a "key" and the corresponding "value". Tuples are created in "()" pa
Personal tips about Python (strings, around logs)
# Around the string ## format,% notation around ### Easy to use format ```python '{0}, {1}, {2}...'.format(Variable 1,Variable 2,Variable 3 ....) #Specified by index (subscript) ``` ### f string
How to create a label (mask) for segmentation with labelme (semantic segmentation mask)
 ↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓  Django request processing flow - Django's request processing flow is as follows. This time, only the rou
Create python directory Support if directory exists
An error will occur if the directory exists when the directory is created. ``` FileExistsError: [WinError 183]You cannot create a file that already exists. ``` # How to check for existence ```pyth
Build an image classification model explosively with Azure Custom Vision and implement it with Flask
# Overview At the study session, I built a supervised learning web application using image data with reference to the following books. <a href="https://www.amazon.co.jp/dp/B07XKXFXCQ/ref=dp-kindle-
Receive video streaming with Tello
# Run Tello with python. If you refer to the official [Tello-python](https://github.com/dji-sdk/Tello-Python), it seems that you can easily apply the control program with python, but it receives the
Linux fastest learning with AWS
# What is Linux Linux is an OS similar to Mac OS and Windows. Ubuntu and CentOS are famous and free. There are also paid ones such as Red Hat. GUI, which can be operated intuitively such as MacOS
[AWS] How to deal with "Invalid codepoint" error in CloudSearch
This article summarizes how to deal with "Invalid codepoin xx" errors in [AWS] CloudSearch. I wrote the code in Python, but I think the points are the same for all languages. [Added on 2020/09/22]
Blog markdown with pelican
Wordpress management is troublesome, I tried to make it simpler by committing / pushing to github. I'm still in the middle, but I want to write up to the point of uploading to github. # reference
Visualize 2ch threads with WordCloud-Morphological analysis / WordCloud-
# Introduction 2ch takes time to read each threadless thread, so I tried to visualize the thread information with WordCloud and get the whole picture easily. <img src="https://qiita-image-store.s3.
Single sign-on to your Django application with AWS SSO
# Introduction AWS SSO is finally available in the Tokyo region, so I tried single sign-on with Django. [Source code-GitHub](https://github.com/daisukeArk/example-awssso) ## Prerequisites and ope
Python array basics
# Python array basics An array is used to manage multiple data at once. Create an array like [Element 1, Element 2, ...]. Each value in the list is called an element. Arrays allow you to manage mu
AtCoderBeginnerContest178 Review & Summary (first half)
AtCoder ABC178 This is a summary of the AtCoder Beginner Contest 178 problems that took place on 2020-09-13 (Sun), starting with problem A and taking into account the considerations. The first half
Python Basic Memorandum Part 3-About Object Orientation-
# Article summary It is a memorandum that I learned according to [References](#References) with the intention of becoming able to read Python as much as possible. This is a summary of the points tha
[Mac OS] Problem of crashing when starting Cent OS after installing Cent OS in Virtual Box
I was so addicted to building a virtual environment that I will write it as a memorandum. ·environment macOS catalina Ver10.15.6 Virtual Box 6.1.14 You tried to install CentOS-8.2.2004-x86_64-dv