Headmaster Wang's flirting with his sister can't be hammered? No matter how rich you are, licking a dog is just licking a dog! Python grabs microblog comments and eats melons!

Hello, everyone. I'm spicy~ As the title shows, we must have been bombed by President Wang's melon these two days. There have been several rounds of hot searches on the microblog. I also eat with relish. It's rare to see President Wang eat flat in front of girls. In addition, I chatted with a friend about the problems encountered in the collec ...

Posted by ugriffin on Tue, 01 Feb 2022 14:29:42 +0100

Sample sampling processing

1. Background In the recommendation system, the common targets are ctr and cvr. The data of these two targets are tilted seriously. If the sample is not sampled, the model is easy to learn bias, resulting in unstable online effect and poor generalization ability. 2. Sample sampling and processing 2.1 sample purification Usually, the pulled ...

Posted by krabople on Tue, 01 Feb 2022 14:01:31 +0100

I added a voice search function to the browser

1. Preface With the development of Internet of things, speech recognition technology has attracted more and more attention. Speech recognition technology is actively promoting the revolution in the field of information and communication. Human-computer interaction based on speech recognition, such as voice dialing, voice mail, voice input and ...

Posted by networkguy on Tue, 01 Feb 2022 13:49:53 +0100

LightGBM parameter adjustment: use OpenBox open source black box optimization system

brief introduction This paper will introduce how to use OpenBox open source black box optimization system to optimize the super parameters of LightGBM model. OpenBox is an open source system designed for black box optimization (project address: https://github.com/thomas-young-2013/open-box ), based on Bayesian optimization, the black bo ...

Posted by daprezjer on Tue, 01 Feb 2022 12:06:46 +0100

Python staring robot can monitor the stock price in real time and notify you by email

preface With its high development efficiency and powerful features, Python stands out among many programming languages and has become an analytical tool in the era of big data. According to my understanding for many years, programming language is just an efficient tool to realize specific functions according to people's intention. The core de ...

Posted by supernova on Tue, 01 Feb 2022 09:59:03 +0100

Plan: MK 2nd place in the regular season

Oar regular season: remote sensing image land segmentation - 8th place scheme in November 1. Introduction to the competition 1.1 game page portal: Regular season: remote sensing image block segmentation 1.2 introduction to competition questions This competition is adapted from the preliminary competition of 2020 CCF BDCI remote sensing imag ...

Posted by Nirvana on Mon, 31 Jan 2022 03:46:11 +0100

Deep learning 4 Differential and automatic derivation

Author: baiyucraft BLog: baiyucraft's Home Original text: Hands on learning and deep learning 1, Differential and derivative    I believe everyone knows the concept. Draw a picture according to the book: import numpy as np from matplotlib import pyplot as plt def set_figsize(figsize=(3.5, 2.5)): """set up matplotlib The ...

Posted by Leppy on Mon, 31 Jan 2022 00:38:44 +0100

ROS learning note file system

ROS learning notes (II) file system Opening: file system structure of ROS. To learn to build a ROS project, we must first understand a ROS project, understand their organizational structure, be fundamentally familiar with the organizational form of ROS project, and understand the functions and functions of various documents, so as to carry out ...

Posted by vandalite on Mon, 31 Jan 2022 00:12:17 +0100

Run yolov5 on CPU (detailed steps + suitable for getting started)

catalogue 1, Create a new environment 2, Import Python Library 3, New project 4, Testing 5, Prepare dataset 6, Modify profile 7, Training 8, Example test 9, Concluding remarks By default, Anaconda and pycham are installed and everyone knows the basic operation. 1, Create a new environment Open the cmd window, enter conda create -n ...

Posted by jcbones on Sun, 30 Jan 2022 13:33:19 +0100

Personal summary of SSD target detection -- Calculation of IOU

preface Mu Shen's code has been watched for a long time, and the video on station B has been brushed many times. He lamented that his foundation is not very solid. The bottom code of the anchor box is almost rolled over line by line. Therefore, make a summary of the whole learning part, and first put Mu Shen's station B and electronic teac ...

Posted by yanisdon on Sun, 30 Jan 2022 05:00:06 +0100