Haoran L.

Key Skills

Software

No software listed

Top Subject Matter

Video content annotation

Audio transcription & AI transcript proofreading

Machine-transcribed text correction

Top Data Types

Video

Audio

Text

Top Task Types

Text Summarization

Transcription

Classification

Freelancer Overview

AI Data Annotator - Video content annotation. Education includes Bachelor of Science, Hebei University (2022). AI-training focus includes data types such as Video, Audio, and Text and labeling workflows including Text Summarization, Transcription, and Classification.

Labeling Experience

AI Data Annotator - Transcript text correction

TextClassification

Corrected grammatical errors in machine-transcribed text according to the project style and accuracy requirements. Fixed misheard words and repaired incomplete sentences to improve readability and correctness. Ensured edited outputs conformed to labeling specifications for downstream model training. • Performed grammar cleanup on transcripts • Corrected word-level recognition mistakes • Completed missing or truncated sentence content • Maintained high accuracy while following labeling rules

2022

AI Data Annotator - Audio transcription & proofreading

AudioTranscription

Transcribed audio recordings into written text for dataset use. Audited and proofread AI auto-transcribed scripts to correct recognition errors and inconsistencies. Applied project standards to ensure the final transcripts met required quality criteria. • Converted spoken audio into accurate text • Reviewed AI-generated transcripts for mistakes • Corrected misheard words and incomplete sentences • Ensured compliance with transcription/proofreading guidelines

2022

AI Data Annotator - Video content annotation

VideoText Summarization

Reviewed AI-generated video descriptions and compared them with the original videos to verify correctness. Corrected wrong, missing, and ambiguous information to ensure alignment between video content and provided text. Followed project requirements to maintain consistent annotation quality across samples. • Cross-checked description text against video frames • Identified inaccuracies, omissions, and unclear phrasing • Revised entries to match observed video events • Ensured data accuracy according to operational standards

2022

Education

Work History