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JD Cloud Developers

JD Cloud Developers (Developer of JD Technology) is a JD Technology Group platform offering technical sharing and communication for AI, cloud computing, IoT and related developers. It publishes JD product technical information, industry content, and tech event news. Embrace technology and partner with developers to envision the future.

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Latest from JD Cloud Developers

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JD Cloud Developers

Aug 14, 2025 · Artificial Intelligence

Boosting Text-to-SQL Accuracy: J‑Schema, Iterative DPO, and Self‑Consistency

This article presents a comprehensive study on improving Text-to-SQL performance by introducing J‑Schema for structured schema representation, applying iterative Direct Preference Optimization (DPO) training, and leveraging self‑consistency voting mechanisms, achieving up to a 12% accuracy gain on the BIRD benchmark.

Database QAIterative DPOJ-Schema

0 likes · 10 min read

Boosting Text-to-SQL Accuracy: J‑Schema, Iterative DPO, and Self‑Consistency

JD Cloud Developers

Aug 13, 2025 · Backend Development

Why Do MySQL PhantomReferences Cause Long GC Pauses and How to Fix Them?

This article analyzes frequent timeout alerts caused by the getUiToken API, investigates JVM garbage‑collection pauses linked to excessive PhantomReference objects from MySQL connections, and presents configuration, code, and scheduling solutions that dramatically reduce GC latency and improve service stability.

ConnectionPoolGCJVM

0 likes · 12 min read

Why Do MySQL PhantomReferences Cause Long GC Pauses and How to Fix Them?

JD Cloud Developers

Aug 6, 2025 · Artificial Intelligence

Deploy JoyAgent: Step‑by‑Step Guide to Launch an Open‑Source AI Agent

This article walks you through deploying JD Cloud’s open‑source JoyAgent AI agent, covering lightweight cloud host creation, opening firewall ports, configuring model and search engine settings, and finally starting the service to access the Genie interface via a public IP.

AI deploymentJD CloudJoyAgent

0 likes · 4 min read

Deploy JoyAgent: Step‑by‑Step Guide to Launch an Open‑Source AI Agent

JD Cloud Developers

Aug 5, 2025 · Artificial Intelligence

How AI Is Transforming Supply Chains: Inside JD.com's Billion‑Scale Time‑Series Model

The article details JD.com’s AI‑driven supply‑chain innovations, from dynamic demand forecasting and risk‑aware decision loops to a groundbreaking billion‑parameter time‑series model that boosts inventory efficiency, reduces costs, and reshapes global logistics ecosystems.

AIIntelligent LogisticsTime Series Forecasting

0 likes · 10 min read

How AI Is Transforming Supply Chains: Inside JD.com's Billion‑Scale Time‑Series Model

JD Cloud Developers

Jul 23, 2025 · Artificial Intelligence

How Causal Inference Meets Large Language Models to Revolutionize E‑commerce Pricing

At QCon 2025, the author presented a novel approach that integrates causal inference with large language models using Retrieval‑Augmented Generation, process rewards, and tree‑search to generate explainable, accurate e‑commerce pricing recommendations, dramatically improving accuracy from 44% to 74% while cutting inference time to seconds.

causal inferencee‑commerce pricingreinforcement learning

0 likes · 14 min read

How Causal Inference Meets Large Language Models to Revolutionize E‑commerce Pricing

JD Cloud Developers

Jul 21, 2025 · Backend Development

Mastering Spring Interceptors: Control Requests, Logging, and Security

This article explains Spring Interceptors, their relationship with WebApplicationContext, various types, configuration methods, execution flow, advanced features, differences from filters, and provides practical logging and authentication examples with code snippets.

AuthenticationInterceptorJava

0 likes · 7 min read

Mastering Spring Interceptors: Control Requests, Logging, and Security

JD Cloud Developers

Jul 18, 2025 · Artificial Intelligence

New Precise Matching Techniques from JD’s SIGIR 2025 Papers

JD's retail technology team presents five SIGIR 2025 papers that introduce advanced graph neural, causal optimal transport, domain‑oriented relevance, multi‑objective bid‑word generation, and hierarchical user behavior models to dramatically improve precise matching in e‑commerce search, recommendation, and advertising.

AdvertisingCTR predictionE-commerce

0 likes · 11 min read

New Precise Matching Techniques from JD’s SIGIR 2025 Papers

JD Cloud Developers

Jul 16, 2025 · Databases

How JD Ads Cut Storage Costs 87% with Apache Doris Hot‑Cold Tiering

This article details JD Advertising's journey from a 1 PB Apache Doris data lake to a multi‑level hot‑cold tiering architecture, describing two tiering strategies, the performance and schema‑change challenges faced during the upgrade to Doris 2.0, and the optimizations that reduced storage costs by about 87% while boosting query throughput.

Apache DorisTiered Storagecold data

0 likes · 19 min read

How JD Ads Cut Storage Costs 87% with Apache Doris Hot‑Cold Tiering

JD Cloud Developers

Jul 15, 2025 · Mobile Development

Boosting HarmonyOS Mini‑Program Performance with Cangjie: A JD Case Study

At the 2025 Huawei Developer Conference, JD’s mini‑program team demonstrated how integrating the Cangjie language into HarmonyOS mini‑programs can halve JS API execution time, reduce main‑thread load, and improve cold‑start performance by up to 20% across high‑frequency scenarios.

CangjieHarmonyOSJS Bridge

0 likes · 8 min read

Boosting HarmonyOS Mini‑Program Performance with Cangjie: A JD Case Study

JD Cloud Developers

Jul 9, 2025 · Backend Development

Boost Java Backend Performance with MyBatis-Plus LambdaQueryWrapper and Spring @Async

Learn how to combine MyBatis-Plus's type‑safe LambdaQueryWrapper with Spring Boot's @Async annotation to build readable, maintainable queries and execute them asynchronously, including configuration of custom thread pools, exception handling, transaction management, and practical use cases such as reporting and batch processing.

AsyncLambdaQueryWrapperSpring Boot

0 likes · 8 min read

Boost Java Backend Performance with MyBatis-Plus LambdaQueryWrapper and Spring @Async