The code for 2021 MGTV AI Challenge Anti Stealing Link, and the online result ranks 10th.

Overview

赛题介绍

芒果TV-第二届“马栏山杯”国际音视频算法大赛-防盗链 随着业务的发展,芒果的视频内容也深受网友的喜欢,不少视频网站和应用开始盗播芒果的视频内容,盗链网站不经过芒果TV的前端系统,跳过广告播放,且消耗大量的服务器、带宽资源,直接给公司带来了巨大的经济损失,因此防盗链在日常运营中显得尤为重要。如何从海量日志中识别出盗链行为,并进行有效拦截,也是防盗链工作的核心。 比赛网址:https://challenge.ai.mgtv.com/contest/detail/7

 

模型介绍

  • 对原始特征进行LabelEncoder编码保存为feather文件
  • 构建 group_feature、count_feature、count_time_feature、cumcount_time_feature、cumcount_feature、cumcountratio_feature、diff_feature、category_encoders_feature,对每类特征加原始特征进行LightGBM建模得到特征重要性
  • 汇总各类特征重要性后分别取前50、100、150、200、250个特征进行LightGBM建模,提交200个特征结果B榜得分0.5174

 

代码

python preprocess.py # 原始数据文件放入/data文件夹中,处理原始数据

python feature_engineering.py # 特征工程,单个特征保存为feather文件

python main.py # 模型训练,按日期排序,最后两天数据作为线下验证集数据
Owner
tongji40
tongji40
Pampy: The Pattern Matching for Python you always dreamed of.

Pampy: Pattern Matching for Python Pampy is pretty small (150 lines), reasonably fast, and often makes your code more readable and hence easier to rea

Claudio Santini 3.5k Dec 30, 2022
A Bot that adds YouTube views to your video of choice

YoutubeViews Free Youtube viewer bot A Bot that adds YouTube views to your video of choice Installation git clone https://github.com/davdtheemonk/Yout

ProbablyX 5 Dec 06, 2022
SiliconCompiler is an open source compiler framework that automates translation from source code to silicon.

SiliconCompiler is an open source compiler framework that aims to automate translation from source code to silicon.

siliconcompiler 539 Jan 04, 2023
Simple Kahoot Botter.

Kahoot A simple Botter made in Python 3 for Kahoot.com. Also sorry for the shitty code lol. How to Run You need Python 3 installed on your device. Aft

7 Jun 29, 2022
Web站点选优工具 - 优化GitHub的打开速度、高效Clone

QWebSiteOptimizer - Web站点速度选优工具 在访问GitHub等网站时,DNS解析到的IP地址可能并不是最快,过慢的节点会严重影响我们的访问情况,故制作出这样的工具来进一步优化网络质量。 由于该方案并非为VPN等方式进行的速度优化,以下几点需要您注意: 后续访问对应网站时仍可能需

QPT Family 15 May 01, 2022
Headless chatbot that detects spam and posts links to it to chatrooms for quick deletion.

SmokeDetector Headless chatbot that detects spam and posts it to chatrooms. Uses ChatExchange, takes questions from the Stack Exchange realtime tab, a

Charcoal 421 Dec 21, 2022
A webapp that timestamps key moments in a football clip

A look into what we're building Demo.mp4 Prerequisites Python 3 Node v16+ Steps to run Create a virtual environment. Activate the virtual environment.

Pranav 1 Dec 10, 2021
A simple streamlit webapp with multiple functionality

A simple streamlit webapp with multiple functionality

Omkar Pramod Hankare 2 Nov 24, 2021
Paintbot - Forward & Inverse Kinematics

PAINTBOT - FORWARD & INVERSE KINEMATICS: Overview: We built a simulation of a RRR robot shown in the figure below. The robot has 3 links and is connec

Alex Lin 1 Oct 21, 2021
Empresas do Brasil (CNPJs)

Biblioteca em Python que coleta informações cadastrais de empresas do Brasil (CNPJ) obtidas de fontes oficiais (Receita Federal) e exporta para um formato legível por humanos (CSV ou JSON).

BR-API: Democratizando dados do Brasil. 8 Aug 17, 2022
Grimoire is a Python library for creating interactive fiction as hyperlinked html.

Grimoire Grimoire is a Python library for creating interactive fiction as hyperlinked html. Installation pip install grimoire-if Usage Check out the

Scott Russell 5 Oct 11, 2022
Windows symbol tables for Volatility 3

Windows Symbol Tables for Volatility 3 This repository is the Windows Symbol Table storage for Volatility 3. How to Use $ git clone https://github.com

JPCERT Coordination Center 31 Dec 25, 2022
One line Brainfuck interpreter in Python

One line Brainfuck interpreter in Python

16 Dec 21, 2022
JSEngine is a simple wrapper of Javascript engines.

JSEngine This is a simple wrapper of Javascript engines, it wraps the Javascript interpreter for Python use. There are two ways to call interpreters,

11 Dec 18, 2022
Fork of pathlib aiming to support the full stdlib Python API.

pathlib2 Fork of pathlib aiming to support the full stdlib Python API. The old pathlib module on bitbucket is in bugfix-only mode. The goal of pathlib

Jazzband 73 Dec 23, 2022
Materials for the Introduction in Python , Linux , Git and Github

This repository contains all the materials of the presentation on the introduction of python, linux, git and Github.

AMMI 3 Aug 28, 2022
This is a Saleae Logic custom high level analyzer that allows you to search and mark specific packets.

SaleaePacketParser This is a Saleae Logic custom high level analyzer that allows you to search and mark specific packets. Field "Search For" is used f

1 Dec 16, 2021
FollowSpot is a comprehensive audition tracking fullstack web application for entertainment industry professionals.

FollowSpot is a comprehensive audition tracking fullstack web application for entertainment industry professionals. This app allows users to store information/media for all of their auditions while a

Jen Brissman 9 Jul 12, 2022
A deployer and package manager for OceanBase open-source software.

OceanBase Deploy OceanBase Deploy (简称 OBD)是 OceanBase 开源软件的安装部署工具。OBD 同时也是包管理器,可以用来管理 OceanBase 所有的开源软件。本文介绍如何安装 OBD、使用 OBD 和 OBD 的命令。 安装 OBD 您可以使用以下方

OceanBase 59 Dec 27, 2022
☘️ Projet Voltaire Solver in Python3

☘️ Projet Voltaire Solver in Python3

Bidouffe 8 Dec 02, 2022