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Vardaan Pahuja

5 accepted papers

2026

Automatic Image-Level Morphological Trait Annotation for Organismal Images

ICLR 2026poster

Morphological traits are physical characteristics of biological organisms that provide vital clues on how organisms interact with their environment. Yet extracting these traits remains a slow, expert-driven process, limiting their use in large-scale ecological studies. A major bottleneck is the abse…

Cited by 0SourcecodeScholar
2025

Explorer: Scaling Exploration-driven Web Trajectory Synthesis for Multimodal Web Agents

ACL 2025finding

Recent success in large multimodal models (LMMs) has sparked promising applications of agents capable of autonomously completing complex web tasks. While open-source LMM agents have made significant advances in offline evaluation benchmarks, their performance still falls substantially short of human…

Cited by 0SourcePDFScholar
2024

Fine-Tuning is Fine, if Calibrated

NeurIPS 2024poster

Fine-tuning is arguably the most straightforward way to tailor a pre-trained model (e.g., a foundation model) to downstream applications, but it also comes with the risk of losing valuable knowledge the model had learned in pre-training. For example, fine-tuning a pre-trained classifier capable of r…

2023

Holistic Transfer: Towards Non-Disruptive Fine-Tuning with Partial Target Data

NeurIPS 2023poster

We propose a learning problem involving adapting a pre-trained source model to the target domain for classifying all classes that appeared in the source data, using target data that covers only a partial label space. This problem is practical, as it is unrealistic for the target end-users to collect…

Cited by 5SourcePDFScholar
2021

A Systematic Investigation of KB-Text Embedding Alignment at Scale

ACL 2021long

Knowledge bases (KBs) and text often contain complementary knowledge: KBs store structured knowledge that can support long range reasoning, while text stores more comprehensive and timely knowledge in an unstructured way. Separately embedding the individual knowledge sources into vector spaces has d…