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Latest from Bilibili Tech

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Bilibili Tech

Nov 5, 2024 · Artificial Intelligence

Bilibili's In-House Role-Playing Large Language Model: Architecture, Training Stages, Evaluation, and Demonstrations

Bilibili’s in‑house role‑playing large language model, built on the Index architecture and refined through pre‑training, supervised fine‑tuning, and preference optimization (PPO and DPO), achieved top scores on the Chinese CharacterEval benchmark, surpassing rivals while incorporating safety alignment and showcasing consistent, personality‑driven dialogue examples.

Content SafetyPreference OptimizationSupervised Fine‑Tuning

0 likes · 13 min read

Bilibili's In-House Role-Playing Large Language Model: Architecture, Training Stages, Evaluation, and Demonstrations

Bilibili Tech

Nov 1, 2024 · Big Data

Magnus: Intelligent Data Optimization Service for Iceberg Tables in Bilibili's Lakehouse Platform

Magnus is Bilibili’s self‑developed intelligent service that continuously optimizes Iceberg tables by scheduling snapshot expiration, orphan‑file cleanup, manifest rewriting, and multi‑dimensional data optimizations—including small‑file merging, sorting, distribution, and index creation—while automatically recommending configurations from real‑time query logs, delivering over 99.9% task success and up to 30% scan‑data reduction.

IcebergIntelligent RecommendationMetadata Management

0 likes · 15 min read

Magnus: Intelligent Data Optimization Service for Iceberg Tables in Bilibili's Lakehouse Platform

Bilibili Tech

Oct 29, 2024 · Big Data

Bilibili One‑Stop Big Data Cluster Management Platform (BMR): Architecture, Modules, and Future Outlook

Bilibili's One‑Stop Big Data Cluster Management Platform (BMR) unifies cluster, metadata, intelligent operations, and custom managers to oversee 50+ services, 10,000 machines, exabyte storage, and millions of cores, using cloud‑native containers, fault prediction, and resource‑sharing techniques to boost efficiency, stability, and cost savings.

BMRCluster ManagementDevOps

0 likes · 17 min read

Bilibili One‑Stop Big Data Cluster Management Platform (BMR): Architecture, Modules, and Future Outlook

Bilibili Tech

Oct 29, 2024 · Frontend Development

WebCodecs Solution Analysis

The article evaluates WebCodecs‑based video editing for browsers, comparing it to cloud and ffmpeg.wasm approaches, and concludes that its low cost and high extensibility outweigh limited ecosystem and compatibility, while outlining the required modules, OPFS storage, frame decoding, and spatial‑temporal manipulation techniques.

Frontend DevelopmentWeb APIWebCodecs

0 likes · 14 min read

Bilibili Tech

Oct 25, 2024 · Big Data

DataFunSummit2024: Next-Generation Data Architecture Technology Summit

DataFunSummit2024, co-hosted by Bilibili, convenes industry experts, scholars, and enterprise leaders across six forums to discuss next‑generation data architecture, showcasing Bilibili’s Iceberg‑based stream‑batch innovations, AI‑BI analytics, NoETL practices, and emerging alternatives to Lambda architecture.

AI+BIBig DataData Architecture

0 likes · 3 min read

DataFunSummit2024: Next-Generation Data Architecture Technology Summit

Bilibili Tech

Oct 25, 2024 · Operations

Bilibili Data Center Migration: Planning, Execution, and Lessons Learned

Bilibili’s 18‑month, multi‑regional data‑center migration moved tens of thousands of servers using a high‑frequency rolling strategy, combining meticulous planning, cross‑team coordination, automated rack placement and rigorous checklists to achieve significant cost savings, higher utilization, improved stability and greener operations.

Data Center Migrationautomationcapacity planning

0 likes · 21 min read

Bilibili Data Center Migration: Planning, Execution, and Lessons Learned

Bilibili Tech

Oct 22, 2024 · Mobile Development

Understanding Swift Macros in Swift 5.9 and Their Applications

Swift 5.9’s new macro system lets developers generate type‑safe code at compile time via external plug‑ins, using role‑based declarations such as @attached and @freestanding to create properties, extensions, or warnings, thereby reducing repetitive boiler‑plate and improving safety in large‑scale architectures like MVVP modules and exposure frameworks.

Compiler PluginSwiftcode generation

0 likes · 20 min read

Understanding Swift Macros in Swift 5.9 and Their Applications

Bilibili Tech

Oct 18, 2024 · Backend Development

Design and Platformization of Bilibili's Paid Exclusive Video and Short Drama Services

Bilibili transformed its rapidly growing charging‑exclusive video and short‑drama services into a modular, platform‑based architecture that separates manuscript, video, charging and drama domains, adds fine‑grained data operations, real‑time observability and robust stability mechanisms, thereby reducing technical debt and enabling scalable, customizable creator‑fan interactions.

Bilibilishort dramavideo monetization

0 likes · 16 min read

Design and Platformization of Bilibili's Paid Exclusive Video and Short Drama Services

Bilibili Tech

Oct 15, 2024 · Frontend Development

AST‑Based Visual Programming for Vue SFC: Design, Implementation, and Demo

By binding a Vue single‑file component’s AST to a visual UI, this project parses templates with node‑html‑parser, transforms scripts via Babel, and processes styles with standard loaders, allowing developers to edit component properties visually, automatically regenerate synchronized source code, and preview changes, with a prototype demo and planned drag‑and‑drop, styling, state, AI, and CI/CD extensions.

ASTVisual ProgrammingVue

0 likes · 10 min read

AST‑Based Visual Programming for Vue SFC: Design, Implementation, and Demo

Bilibili Tech

Oct 11, 2024 · Big Data

Business Observability and Real-Time Event Streaming Architecture for Content Production

The paper proposes a business‑observability framework for a content‑production pipeline—illustrated by Bilibili’s workflow—by modeling archives as entities, assigning global AIDs for end‑to‑end tracing, and leveraging a Kafka‑Flink‑ClickHouse event‑streaming platform to monitor real‑time latency, bottlenecks, and safety audits across the entire production line.

Content ProductionEvent StreamingTraceability

0 likes · 19 min read

Business Observability and Real-Time Event Streaming Architecture for Content Production