Ulfiana N.

Key Skills

Software

Other

Remotasks

Top Subject Matter

Robotic manipulation video annotation

LLM Response Evaluation

Data Annotator

Top Data Types

Video

Text

Image

Top Task Types

Action Recognition

Freelancer Overview

AI Data Annotation Contributor, Remotask (SensorFusionLab). Brings years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include SensorFusionLab and Other. Education includes Bachelor of Accounting, Universitas Sangga Buana YPKP (2013) and Diploma of Accounting, Universitas Padjadjaran (2011). AI-training focus includes data types such as Video and Text and labeling workflows including Action Recognition, Evaluation, and Rating.

Labeling Experience

AI Data Annotation Contributor, Remotasks (SensorFusionLab)

VideoObject Detection

Annotated robotic arm movement videos by segmenting actions into meaningful sub-goal event clips across four simultaneous camera angles. Labeled platform movement and gripper actions according to SensorFusionLab project guidelines while ensuring frame-accurate start/end boundaries. Maintained high annotation quality and consistency throughout the labeling workflow. • Multi-camera (right, low, high, left) video annotation • Frame-level clip segmentation with precise start/end marking • Action/sub-goal labeling (e.g., platform movement, gripper actions) • Adherence to project-specific quality standards

2026 - Present

AI Data Annotation Practice (Self Training)

OtherText

Evaluated AI-generated responses for accuracy, relevance, and safety using structured annotation guidelines. Performed sentiment analysis and intent classification on Indonesian and English text datasets. Practiced selecting the best response among multiple AI outputs and identifying factual errors to improve response quality. • AI response evaluation (accuracy, relevance, safety) • Sentiment analysis for Indonesian and English text • Intent classification for Indonesian and English text • Pairwise/best-response selection and factual error identification

2026 - 2026

Education

Work History