Demonstrate all the questions on LeetCode in the form of animation.（用动画的形式呈现解LeetCode题目的思路）

Free and Open Source, Distributed, RESTful Search Engine

#1 Locally hosted web application that allows you to perform various operations on PDF files

Apollo is a reliable configuration management system suitable for microservice configuration management scenarios.

Use SQL to query Elasticsearch

Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.

👮‍♂️The sensitive word tool for java.(敏感词/违禁词/违法词/脏词。基于 DFA 算法实现的高性能 java 敏感词过滤工具框架。内置支持单词标签分类分级。请勿发布涉及政治、广告、营销、翻墙、违反国家法律法规等内容。高性能敏感词检测过滤组件，附带繁体简体互换，支持全角半角互换，汉字转拼音，模糊搜索等功能。)

LIBSVM -- A Library for Support Vector Machines

AI constraint solver in Java to optimize the vehicle routing problem, employee rostering, task assignment, maintenance scheduling, conference scheduling and other planning problems.

jsprit is a java based, open source toolkit for solving rich vehicle routing problems

Plugin to integrate Learning to Rank (aka machine learning for better relevance) with Elasticsearch

Ytk-learn is a distributed machine learning library which implements most of popular machine learning algorithms(GBDT, GBRT, Mixture Logistic Regression, Gradient Boosting Soft Tree, Factorization …

This project is no longer maintained. Visit https://github.com/kiegroup/optaplanner-quickstarts to see how to integrate OptaPlanner in your application.

A Learning to Rank Library

AI Hub 是一个为了接入包括ChatGPT、Baichuan、Zhipu、混元、MiniMax、Moonshot等多种大型语言模型而设计的服务。它旨在积累和管理各种有效的模型调用提示（prompt），并对这些大型语言模型进行持续的测试和评估。

chatgpt微信聊天小程序。java编写服务器，实现chatgpt接口的调用，微信小程序用于聊天。二者基于webSocket进行通信