Garris D.

Key Skills

Software

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Top Data Types

Text

Top Task Types

Entity (NER) Classification

Bounding Box

Freelancer Overview

Ruxuan Dai Phone: 07926532772 Email: [email protected] Bilingual Data Labeling / AI Data Quality / NLP Annotation Candidate Profile • MSc Big Data and Digital Futures student at the University of Warwick with native Chinese and fluent English, trained in data science, quantitative research, NLP, and AI/social data analysis. • Hands-on project experience in sentiment classification, user behavior analysis, AI product analysis, data cleaning, error analysis, and evidence-based reporting. • Strong fit for data labeling and AI data quality roles requiring careful instruction-following, language sensitivity, structured judgment, and consistency across large-scale annotation tasks. Skills • Languages: Chinese native; English fluent; able to read, judge, and rewrite bilingual content with cultural context. • AI/Data Labeling Fit: Text classification, sentiment judgment, annotation guideline interpretation, quality checking, edge-case reasoning, consistency review. • NLP & ML: Sentiment classification, TF-IDF, Linear SVM, Logistic Regression, PyTorch LSTM, GloVe embeddings, macro-F1, confusion matrix, error analysis. • Data Analysis: Python, pandas, matplotlib, seaborn, R, logistic regression, descriptive statistics, data visualization, report writing. • Domain Awareness: Cross-border e-commerce, AI product experience, user behavior analysis, risk perception, digital society and governance data. Education University of Warwick | MSc, Big Data and Digital Futures

Education

Work History