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Recommendation Engine

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DeWu Technology
DeWu Technology
Aug 21, 2023 · Backend Development

Design and Implementation of DGraph: A High‑Performance Recommendation Engine

DGraph, a C++ recommendation engine launched in 2022 for 得物, combines an index layer with a service layer, uses lock‑free RCU structures, a custom mmap‑based D‑Allocator, RoaringBitmap invert indexes, and a multi‑operator fusion scheduler to achieve high‑performance, eventually consistent, scalable recommendations.

CIndexingMemory Management
0 likes · 12 min read
Design and Implementation of DGraph: A High‑Performance Recommendation Engine
DataFunSummit
DataFunSummit
Sep 12, 2021 · Artificial Intelligence

Algorithmic Practices in Haola Ride-Sharing: Platform Infrastructure, Matching Recommendation Engine, Transaction Governance, and Intelligent Marketing

This article details Haola's end‑to‑end algorithmic ecosystem for its ride‑sharing service, covering the machine‑learning platform built on Hadoop/YARN, the architecture and evolution of the matching recommendation engine, transaction‑ecosystem governance models, and intelligent marketing strategies including uplift modeling and optimization.

AIRecommendation EngineTransaction Governance
0 likes · 19 min read
Algorithmic Practices in Haola Ride-Sharing: Platform Infrastructure, Matching Recommendation Engine, Transaction Governance, and Intelligent Marketing
JD Retail Technology
JD Retail Technology
Dec 27, 2019 · Artificial Intelligence

JD Health 'Medicine Urgent Delivery' Project: LBS‑Based Store Recommendation and Full‑Channel Transaction Architecture

The JD Health Medicine Urgent Delivery service leverages LBS‑driven store recommendation, full‑channel transaction integration, and AI‑powered recommendation models to deliver medicines within half an hour across more than 100 cities, showcasing cross‑team technical collaboration and operational innovations.

AIFull-ChannelJD Health
0 likes · 9 min read
JD Health 'Medicine Urgent Delivery' Project: LBS‑Based Store Recommendation and Full‑Channel Transaction Architecture
Architect
Architect
Jan 9, 2016 · Backend Development

Design and Implementation of a High‑Concurrency Proxy for the Weibo Recommendation Engine

This article describes the background, challenges, technical research, architectural design, module implementation, performance testing, and lessons learned when building a Golang‑based, high‑concurrency, easily extensible proxy to replace twemproxy for Weibo's recommendation system.

ProxyRecommendation EngineWeibo
0 likes · 19 min read
Design and Implementation of a High‑Concurrency Proxy for the Weibo Recommendation Engine