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58 Tech

Official tech channel of 58, a platform for tech innovation, sharing, and communication.

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Latest from 58 Tech

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58 Tech
58 Tech
May 26, 2023 · Artificial Intelligence

A2M Summit: AI & Machine Learning – Recommendation Algorithms in 58.com’s Industrial Transformation

The A2M Summit announcement details a 2023 AI and machine learning conference where senior algorithm architect Liu Lixi presents his talk on practical recommendation system techniques for sparse data, low‑frequency scenarios, and ad‑creative optimization within 58.com’s industry‑wide digital transformation.

58.comAIIndustrial Transformation
0 likes · 5 min read
A2M Summit: AI & Machine Learning – Recommendation Algorithms in 58.com’s Industrial Transformation
58 Tech
58 Tech
May 11, 2023 · Artificial Intelligence

Stella Data Annotation Platform: Design, Architecture, and AI‑Assisted Labeling

The article details the design and implementation of the Stella data annotation SaaS platform at 58.com, covering its background, evolution, modular architecture, annotation capabilities across text, image, audio, and video, AI‑assisted labeling, storage solutions, quality and efficiency management, as well as localization and licensing considerations.

AI PlatformData AnnotationLocalization
0 likes · 21 min read
Stella Data Annotation Platform: Design, Architecture, and AI‑Assisted Labeling
58 Tech
58 Tech
Apr 27, 2023 · Mobile Development

Fair-Online: An Integrated Cloud Development Platform for Flutter with Online Code Editing, Real‑time Compilation, and Dynamic Updates

Fair-Online is a cloud‑based development platform for Flutter that combines an online code editor, visual project/component creation, real‑time compilation preview, hot‑reload style updates, and a custom syntax‑analysis service, enabling developers to build, test, and deploy Flutter applications without local environment setup.

Web developmentcode editoronline IDE
0 likes · 12 min read
Fair-Online: An Integrated Cloud Development Platform for Flutter with Online Code Editing, Real‑time Compilation, and Dynamic Updates
58 Tech
58 Tech
Apr 20, 2023 · Big Data

Design and Implementation of a Data Application Platform for Business Opportunity Selection, Tagging, and Scheduling

The article describes a data application platform that enables business users to configure custom data selection rules for opportunities, create scheduled tasks, perform large‑scale data comparison, handle task dispatch with Redis queues, and implement rate‑limiting using sliding windows to ensure reliable processing.

Rate LimitingRedisSpark
0 likes · 9 min read
Design and Implementation of a Data Application Platform for Business Opportunity Selection, Tagging, and Scheduling
58 Tech
58 Tech
Apr 6, 2023 · Frontend Development

Understanding and Using PerformanceObserver for Web Performance Metrics

PerformanceObserver, part of the W3C Performance Timeline API, enables developers to efficiently monitor key web performance metrics such as FP, FCP, LCP, CLS, and FID without polling, and the article explains its background, usage, methods, code examples, related PerformanceEntry types, and browser compatibility.

JavaScriptPerformance APIperformanceobserver
0 likes · 12 min read
Understanding and Using PerformanceObserver for Web Performance Metrics
58 Tech
58 Tech
Mar 21, 2023 · Mobile Development

Flutter Performance, Layout, and Memory Optimization Techniques

This article explains how to detect and resolve performance bottlenecks in Flutter apps by using compile modes, profiling tools, layout tree insights, widget build optimizations, const constructors, list view strategies, raster thread tuning, and memory‑saving practices such as oversized‑image detection and layer separation.

Performance optimizationlayout optimizationmemory management
0 likes · 14 min read
Flutter Performance, Layout, and Memory Optimization Techniques
58 Tech
58 Tech
Mar 14, 2023 · Artificial Intelligence

Dialogue Robot Technology Practices in Recruitment Platforms

The DataFun Summit 2023 featured a presentation by senior AI engineer Sang Hailong on building and applying dialogue robot technologies—including QABot, TaskBot, intent recognition, and intelligent double‑call—in 58.com’s recruitment platform, with experimental insights on ChatGPT integration.

AIChatGPTChatbot
0 likes · 3 min read
Dialogue Robot Technology Practices in Recruitment Platforms
58 Tech
58 Tech
Feb 28, 2023 · Frontend Development

Achieving True WYSIWYG in Low‑Code Editors: Editing Layer and Rendering Layer Design

This article explains how a low‑code editor can provide true WYSIWYG editing by separating the canvas into an editing layer and a rendering layer, using an iframe for isolation, synchronizing layout information via DOM measurements, and addressing the challenges of component overlap, performance, and cross‑technology integration.

CanvasWYSIWYGeditor design
0 likes · 11 min read
Achieving True WYSIWYG in Low‑Code Editors: Editing Layer and Rendering Layer Design