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Latest from Bilibili Tech

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Bilibili Tech

May 20, 2025 · Artificial Intelligence

How AnimeReward and GAPO Transform Anime Video Generation with Human Feedback

Researchers at Bilibili present Index‑Anisora, an open‑source anime video generation framework that builds a 30k‑sample reward dataset, introduces the multi‑dimensional AnimeReward model and a Gap‑Aware Preference Optimization (GAPO) method, and demonstrate through extensive automatic and human evaluations that their approach significantly outperforms baseline video generators.

AIGAPOHuman Feedback

0 likes · 20 min read

How AnimeReward and GAPO Transform Anime Video Generation with Human Feedback

Bilibili Tech

May 16, 2025 · Artificial Intelligence

How FineVQ Sets New Standards for Fine‑Grained UGC Video Quality Assessment

The article introduces FineVD, the first large‑scale multi‑dimensional UGC video quality dataset, and presents FineVQ, a unified model that predicts quality scores, attributes, and distortion types across six dimensions, achieving state‑of‑the‑art performance on multiple benchmarks and cross‑dataset evaluations.

FineVQUGCcomputer vision

0 likes · 9 min read

How FineVQ Sets New Standards for Fine‑Grained UGC Video Quality Assessment

Bilibili Tech

May 13, 2025 · Big Data

Live Streaming Ecosystem Governance Architecture and Data Mining Engine Design

The article outlines a comprehensive live‑streaming ecosystem governance framework that combines data‑mining engines, tagging platforms, rule‑based disposal mechanisms, and multi‑stage user touchpoints to improve content quality, compliance, and platform sustainability.

Content moderationData GovernanceLive Streaming

0 likes · 14 min read

Live Streaming Ecosystem Governance Architecture and Data Mining Engine Design

Bilibili Tech

May 9, 2025 · Artificial Intelligence

How an AI Gateway Scales LLM Services: Architecture, Auth, Quotas, and Load Balancing

This article explains the design of an AI gateway that centralizes LLM access, detailing its background, overall architecture, authentication, quota management, multi‑model routing, load‑balancing strategies, multi‑tenant isolation, observability features, and the supported API protocols for enterprise integration.

AI gatewayAPI gatewayLLM

0 likes · 17 min read

How an AI Gateway Scales LLM Services: Architecture, Auth, Quotas, and Load Balancing

Bilibili Tech

Apr 29, 2025 · Cloud Computing

Bilibili Live Streaming Technology for the Spring Festival Gala: Experience Enhancement and Interactive Features

Bilibili's R&D built a cloud-based broadcast console for the 2024 CCTV Spring Festival Gala, delivering 4K HDR streaming, AI SDR-to-HDR conversion, low latency, bandwidth‑aware transcoding, and a synchronized “send bullet screen” interactive feature using custom SEI timestamps for hundreds of millions of viewers.

HDRLatency OptimizationLive Streaming

0 likes · 15 min read

Bilibili Live Streaming Technology for the Spring Festival Gala: Experience Enhancement and Interactive Features

Bilibili Tech

Apr 25, 2025 · Information Security

How Bilibili Comics Leverages 3D Tracing, Anti‑Crawler, and Encrypted Channels to Fight Piracy

Bilibili Comics deploys a three‑layer protection system—stereoscopic tracing, crawler defense, and encrypted channels—that dramatically reduces illegal distribution, boosts creator engagement, and creates a healthier comic ecosystem through real‑time monitoring, automated takedowns, and secure CDN delivery.

BilibiliDigital Rights Managementanti‑crawler

0 likes · 6 min read

How Bilibili Comics Leverages 3D Tracing, Anti‑Crawler, and Encrypted Channels to Fight Piracy

Bilibili Tech

Apr 22, 2025 · Operations

Client‑Side DCDN Disaster‑Recovery Drills and Automated Testing at Bilibili

Bilibili performed client-side DCDN disaster-recovery drills using a self-built HTTPDNS to simulate DNS, CDN, and SSL faults; automated scripts across Android, iOS, and Web injected errors, measured rendering latency, validated immediate downgrade to commercial services, refined fallback strategies, and demonstrated near-zero user impact during a real network incident.

BilibiliDCDNHTTPDNS

0 likes · 13 min read

Client‑Side DCDN Disaster‑Recovery Drills and Automated Testing at Bilibili

Bilibili Tech

Apr 8, 2025 · Big Data

Building a Real-Time Data Warehouse for B站 Game Business

To meet Bilibili’s rapidly expanding game business, the team built a unified real-time data warehouse using Hologres and Flink that replaces the traditional Lambda stack, delivering high-throughput writes, low-latency processing, seamless offline-online integration, global deployment, and real-time support for operations, advertising, and risk analytics.

Data architecture case studyFlinkGame business data

0 likes · 17 min read

Building a Real-Time Data Warehouse for B站 Game Business

Bilibili Tech

Mar 25, 2025 · Cloud Native

Technical Case Study: Accelerating Live‑to‑VOD Conversion for the 2025 Spring Festival Gala

By replacing the legacy FLV recorder with an m3u8‑based service, introducing a short‑segment, state‑machine transcoder, and deploying an event‑driven proxy and instant‑clipping UI, the team cut the 4‑hour‑40‑minute Spring Festival Gala’s live‑to‑VOD processing from 41 minutes to about eight minutes, achieving roughly a five‑fold speedup.

Live StreamingVOD conversiondistributed systems

0 likes · 21 min read

Technical Case Study: Accelerating Live‑to‑VOD Conversion for the 2025 Spring Festival Gala

Bilibili Tech

Mar 18, 2025 · Operations

Technical Practices for Ensuring Stability of Bilibili’s 2025 Spring Festival Gala Live Stream

Bilibili’s engineering team built a scenario‑metadata and one‑click fault‑drill platform, implemented multi‑tier degradation, dynamic capacity planning, and extensive automated fault‑injection testing to guarantee zero‑severity incidents during the high‑traffic 2025 Spring Festival Gala live stream.

Fault InjectionLive Streaminghigh concurrency

0 likes · 16 min read

Technical Practices for Ensuring Stability of Bilibili’s 2025 Spring Festival Gala Live Stream