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Latest from Bilibili Tech

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Bilibili Tech

Jul 11, 2025 · Artificial Intelligence

IndexTTS2: Emotionally Expressive, Duration-Controlled Zero-Shot TTS

IndexTTS2 introduces a novel auto-regressive zero-shot text-to-speech model that achieves precise duration control and fine-grained emotional expression through a universal time‑encoding mechanism, decoupled voice‑style and emotion modeling, and a GPT‑style latent feature, outperforming state‑of‑the‑art baselines across multiple benchmarks.

duration controlemotional synthesisspeech generation

0 likes · 23 min read

IndexTTS2: Emotionally Expressive, Duration-Controlled Zero-Shot TTS

Bilibili Tech

Jul 4, 2025 · Operations

Solving CPU Performance Layering in Heterogeneous Data Centers: A Practical Guide

This article explains why heterogeneous servers cause CPU performance layering, describes how to detect the issue using metrics such as NUMA hit/miss rates, cache miss ratios and frequency states, and provides step‑by‑step remediation techniques—including NUMA binding, cache isolation, recompilation and frequency locking—to improve resource pooling efficiency in modern data centers.

CPU performanceCache OptimizationData Center

0 likes · 24 min read

Solving CPU Performance Layering in Heterogeneous Data Centers: A Practical Guide

Bilibili Tech

Jun 13, 2025 · Mobile Development

How Bilibili Scaled Kotlin Multiplatform Across Android, iOS, and HarmonyOS

This article details Bilibili's practical experience with Kotlin Multiplatform (KMP), covering the choice of Bazel as a build system, multi‑language interop, dependency injection, modular export, state‑machine driven single‑direction data flow, and the successful deployment of shared logic and UI across Android, iOS, and HarmonyOS platforms.

BazelCompose UICross‑platform

0 likes · 20 min read

How Bilibili Scaled Kotlin Multiplatform Across Android, iOS, and HarmonyOS

Bilibili Tech

May 27, 2025 · Operations

Automated Server Fault Detection and Repair: Architecture, Methods, and Future Outlook

This article presents a comprehensive overview of server fault management at scale, detailing the classification of failures, shortcomings of traditional manual processes, and the design of an automated detection and repair system that combines in‑band and out‑of‑band data collection, rule‑based alerting, and end‑to‑end repair workflows, while also outlining future directions for intelligent monitoring and reliability.

InfrastructureMonitoringOperations

0 likes · 17 min read

Automated Server Fault Detection and Repair: Architecture, Methods, and Future Outlook

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.

FineVQMultimodalUGC

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.

Data GovernanceRule EngineTagging System

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 gatewayAuthenticationLLM

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.

HDRSEIcloud broadcasting

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 ManagementInformation Security

0 likes · 6 min read

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