Yihan L.

Key Skills

Software

AWS SageMaker

CVAT

Label Studio

Top Subject Matter

Spoken-video transcription

Subtitles Domain Expertise

and linguistics-informed annotation

Top Data Types

Audio

Text

Video

Document

Top Task Types

Transcription

Segmentation

Prompt + Response Writing (SFT)

Freelancer Overview

Founder & Developer — YiTing Spoken Video Transcription Tool. Brings 8+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Don't disclose and Other. Education includes Bachelor of Marketing, Southwest University. AI-training focus includes data types such as Audio and Text and labeling workflows including Transcription, Segmentation, and Prompt + Response Writing (SFT).

Labeling Experience

Content Operations — ZhouRan Investment Education IP

OtherTextSegmentation

Managed subtitle formatting and publishing for investment education videos across multiple short-video platforms. Handled subtitle segmentation and platform-specific formatting to maintain consistent presentation quality across outputs. Operated as a post-production workflow owner focused on reliable caption formatting for spoken content. • Performed subtitle segmentation for regular educational video outputs • Applied platform-specific subtitle formatting rules • Conducted video editing to align captions with spoken audio • Ensured consistent caption presentation across channels

2025 - Present

Founder & Developer — YiTing Spoken Video Transcription Tool

Don't discloseAudioTranscription

Built a spoken-video transcription tool that converts real-world oral content into structured text with linguistically informed segmentation. Designed annotation workflows to capture disfluencies and code-switching behavior while preserving the intended meaning of spoken Mandarin and dialect. Implemented subtitle segmentation driven by prosodic and punctuation cues to improve readability and timing consistency. • Transcribed spoken video audio and produced structured text outputs • Labeled/handled filler words, false starts, pauses, and Mandarin-dialect code-switching • Applied punctuation-driven sentence boundaries and rhythm-aware line breaks • Enforced subtitle constraints such as max characters per line

2024 - Present

Course Designer — AI Prompt Engineer Course

OtherTextPrompt + Response Writing (SFT)

Designed a hands-on AI prompt engineering course emphasizing how language models process input and generate outputs. Developed training curriculum that includes data quality evaluation concepts to explain how training/inputs impact AI response quality. Delivered instructional modules focused on prompt design and model evaluation rather than direct model fine-tuning. • Produced 37-lesson, 30+ hour course materials • Created hands-on modules covering data quality and prompt design • Included guidance on model evaluation and expected output behaviors • Trained learners on how input quality influences generated language

2023 - 2024

Content Operations & Post-Production — Guo Xiao Jiao De Da Shu Media IP

OtherTextSegmentation

Created and enforced internal standards for subtitle annotation to ensure consistent final captions across educational videos. Produced and quality-checked subtitle segmentation based on punctuation rules and character-per-line limits while removing unwanted punctuation marks from the clean output. Reviewed audio recordings for clarity, volume consistency, and pacing to support accurate subtitle creation. • Performed subtitle annotation and punctuation-based segmentation • Applied formatting rules including character-per-line limits and clean caption output • Managed subtitle creation and editing for publishing pipelines • Reviewed audio quality prior to final publication

2020 - 2024

Education

Work History