Other | Dezhi Yu

Themis

Thu, 27 May 2021 00:00:00 +0000

Themis is the first of Strategy Distribution Engine systems in the company, and have serviced 200 million user. Themis, a smart strategy engine based on traffic flow and predicate conditions’ strategy, which provides handy service for vendors and consumers.

Prometheus

Wed, 20 May 2020 00:00:00 +0000

Prometheus Ghost theme is clean and very modern. The design is highly focused on typography. But there is also the perfect combination of image and white space in this design. This theme is perfect for a personal and professional blog. Also, the theme will fit in with perfectly with any fashion blog, food blog, movie blog, music blog or any other you can imagine. You could use this theme for an online magazine or journal also.

Installing and customizing this theme is very easy. All required information is provided in the documentation.

is here.

Taco

Mon, 27 May 2019 00:00:00 +0000

Taco is one of the fast golang-based message push systems in the company, and have serviced 300 million user. Taco provides multiple push methods such as pushing a single user, pushing a group of users in batches, and accurately pushing specific user tags. The low-latency feature greatly empowers the logistics rider’s message reach scenario.

Taco is an Infura-like, API gateway on top of Golang backend services, MySQL and Redis, RabbitMQ and Kafka as the messaging queue, Hive, Blink and Elasticsearch as data statistics and message pipeline query, gRPC, Apache Thrift and HTTP as the communication protocol, which gRPC and Apache Thrift is for internal communication protocol, HTTP is for iOS/Android/H5 external communication protocol.

Stormeye

Sat, 27 Jan 2018 00:00:00 +0000

Clairvoyant

Mon, 27 Nov 2017 00:00:00 +0000

vue-objccn

Tue, 20 Jun 2017 00:00:00 +0000

Use Vue.js to develop a cross-platform full stack application of .

✅ Desktop application available for three platforms, Mac, Linux and Windows
✅ Web application supports desktop browsers and mobile browsers
✅ Mobile App which uses the Cordova framework, supports iOS, Android, Windows Phone and BlackBerry platforms
❌ Native Mobile App, which can use Weex framework to support both iOS and Android

Note: This project is just a bit of fun and purely for learning purpose, please support and .

The download link for the runnable and complete packaged software is .

Halfrost-Field

Thu, 27 Apr 2017 00:00:00 +0000

《HTTP/2 Protocol Analysis》This series article detailed analysis the RFC 7540, which is the Hypertext Transfer Protocol Version 2 (HTTP/2).

• [RFC 7540] Hypertext Transfer Protocol Version 2 (HTTP/2) • Unveiling the veil of HTTP/2: How does HTTP/2 establish a connection? • Multiplexing of HTTP frames and streams in HTTP/2 • Frame definition in HTTP/2 • HTTP semantics in HTTP/2 • Considerations in HTTP/2 • Frequently asked questions in HTTP/2 • [RFC 7541] HPACK: Header Compression for HTTP/2 • Detailed HTTP/2 header compression algorithm-HPACK • HTTP/2 HPACK practical application examples • [RFC 7301] TLS Application-Layer Protocol Negotiation Extension

《TLS 1.3 Protocol Analysis》This series article detailed analysis the RFC 8846, which is the Transport Layer Security (TLS) Protocol Version 1.3.

• How to deploy TLS 1.3 ？ • [RFC 6520] TLS & DTLS Heartbeat Extension • [RFC 8446] The Transport Layer Security (TLS) Protocol Version 1.3 • TLS 1.3 Introduction • TLS 1.3 Handshake Protocol • TLS 1.3 Record Protocol • TLS 1.3 Alert Protocol • TLS 1.3 Cryptographic Computations • TLS 1.3 0-RTT and Anti-Replay • TLS 1.3 Compliance Requirements • TLS 1.3 Implementation Notes • TLS 1.3 Backward Compatibility • TLS 1.3 Overview of Security Properties

《Study Notes of Machine Learning》This study notes is the machine learning course in the coursera, which it’s instructor is Andrew Ng in the Stanford University.

• Week1 —— What is Machine Learning • Week1 —— Linear Regression with One Variable (Gradient Descent) • Week2 —— Multivariate Linear Regression • Week2 —— Computing Parameters Analytically • Week2 —— Octave Matlab Tutorial • Week3 —— Logistic Regression • Week3 —— Regularization • Week4 —— Neural Networks Representation • Week5 —— Neural Networks Learning • Week5 —— Backpropagation in Practice • Week6 —— Advice for Applying Machine Learning • Week6 —— Machine Learning System Design • Week7 —— Support Vector Machines • Week8 —— Unsupervised Learning • Week8 —— Dimensionality Reduction • Week9 —— Anomaly Detection • Week9 —— Recommender Systems • Week10 —— Large Scale Machine Learning • Week11 —— Application Example: Photo OCR

iOS-Weekly

Fri, 27 Jan 2017 00:00:00 +0000

The problem in this era is not a lack of information, but too much information. Ones doesn’t know what information is valuable and what is valid for he. Since SwiftOldDriver usually pay attention to the information related to iOS development, and sort it out. SwiftOldDriver are not just porters of information, but also evangelists of value. The content is not limited to specific content related to iOS technology. It also includes information that we believe is valuable to iOS developers, such as software engineering and programmer topics.