Yanbao Li Yan

C# desktop media-processing workflow

Released a local-first Windows app for authorized YouTube and Bilibili downloads.

• Orchestrates yt-dlp and FFmpeg asynchronously with preflight quality, size, disk-space, and destination checks.
• Adds playlist-aware queues, platform-ID deduplication, persisted history, and unfinished-task recovery.

Explainable video-ad decision service

Shipped a public three-scenario demo and Fastify API for explainable long-video ad decisions.

• Normalizes Zod-validated TwelveLabs evidence and combines it with player and campaign constraints in a typed deterministic policy engine.
• Uses browser-side MediaPipe to score four pause-ad positions and return auditable reasons, including when no safe area exists.

Cross-platform local-first media system

Released Windows and Android preview builds of a local-first Flutter / Dart music and MV player.

• Unifies the offline library, playlists, queue, and history around SQLite with SHA-256 content deduplication.
• Builds layered metadata matching with MusicBrainz and optional Chromaprint / AcoustID fallback, plus an optional Supabase synchronization foundation.

Primary programmer and optimization modeler

Owned the programming and optimization-modeling work for coordinated drone deployment: formulated the geometric model, proposed fitting and search approaches, and tuned simulated annealing, Bayesian optimization, genetic algorithms, island models, and NSGA-II for multi-objective strategies.

PyTorch multimodal-fusion research

Implemented and tuned components of a PyTorch-based multimodal image-fusion model, contributing model experiments, parameter adjustment, data integration, and evaluation support within a four-person research team.

Primary programmer and modeling contributor

Owned the Python implementation and modeling workflow for a cybercrime-policy study: selected, implemented, and tuned hierarchical clustering, game-theoretic analysis, and random forest regression for data fitting and comparative analysis.