Human-in-the-loop evaluation of generative AI
Estimates human preference win rates across multiple evaluation metrics while minimizing the number of judgments needed.
COMPUTER VISION · AI · STATISTICS
Final-year PhD candidate at UMass Amherst. I combine AI predictions with human labels and statistical estimation to produce numbers we can trust.
RESEARCH DIRECTIONS
AI can process a collection quickly, but systematic errors can make its totals unreliable. This work uses models to guide a small amount of human labeling, then uses statistical estimators to correct the result and quantify uncertainty.
Estimates human preference win rates across multiple evaluation metrics while minimizing the number of judgments needed.
Estimates many quantities at once, such as the relative abundance of multiple coral species, using AI model predictions and limited expert labels.
Extends active measurement to spatial statistics, estimating how rare targets such as star clusters group across a galaxy.
Introduces an adaptive framework for human-in-the-loop measurement with unbiased estimators, confidence intervals, and sampling without replacement.
Species range maps are essential for ecology and conservation, yet most species have few recorded observations. These projects use shared representations, language, and images to make range estimation work with less data.
Predicts the range of a previously unseen species from a few observed locations, with optional text or image metadata, in a single feedforward pass.
Connects citizen-science observations with Wikipedia descriptions to estimate ranges for species with little or no location data.
Uses optical-flow correspondences to produce sharper, more perceptually accurate video predictions.
A dataset of detailed 3D geometry annotations for 140,000 diverse real-world images.
BACKGROUND
PhD, Computer Science
MSE & BSE, Computer Science
Minor in Mathematics
PhD Research Intern · human-in-the-loop evaluation of generative AI models
PhD Research Intern · efficient diffusion models for depth and surface-normal estimation
ACTIVE MEASUREMENT · INTERACTIVE EXPLANATION
The objective: estimate the total number of birds without inspecting every region.
2Your role: count the birds in each highlighted crop.
Leave both unselected to alternate.
Choose a count to begin.
WHAT WE KNOW SO FAR
Label 3 regions to see an approximate 95% confidence interval.
Label 3 regions to see an approximate 95% confidence interval.
Model predictions. We use AI predictions to focus human review on the regions expected to be most informative. Crucially, the framework’s unbiasedness and confidence interval guarantees hold regardless of the accuracy or quality of those predictions. Better predictions lead to narrower confidence intervals.
Sampling. Uniform sampling ignores the model predictions and chooses equally among unseen regions. Our model-guided method samples without replacement using the underlying continuous model score; the count shown above is its rounded display value. A small exploration floor ensures every region can be selected, including those predicted as empty.
Estimation. Each model-guided draw uses an inverse-probability estimate of birds in the unseen image. Draw-level estimates are combined with fixed without-replacement weights from the Active Measurement paper. Intervals: uniform uses a finite-population variance and model-guided sampling uses the paper’s conditional variance construction.