← Search

Ritwik Gupta

10 accepted papers

2025

Enough Coin Flips Can Make LLMs Act Bayesian

ACL 2025long

Large language models (LLMs) exhibit the ability to generalize given few-shot examples in their input prompt, an emergent capability known as in-context learning (ICL). We investigate whether LLMs use ICL to perform structured reasoning in ways that are consistent with a Bayesian framework or rely o…

Cited by 0SourcePDFScholar
2025

LISAt: Language-Instructed Segmentation Assistant for Satellite Imagery

NeurIPS 2025poster

Segmentation models can recognize a pre-defined set of objects in images. However, segmentation models capable of "reasoning" over complex user queries that implicitly refer to multiple objects of interest remain underexplored, especially in the geospatial domain. Recent advances in "reasoning segme…

Cited by 0SourcecodeScholar
2025

Visual Haystacks: A Vision-Centric Needle-In-A-Haystack Benchmark

ICLR 2025poster

Large Multimodal Models (LMMs) have made significant strides in visual question-answering for single images. Recent advancements like long-context LMMs have allowed them to ingest larger, or even multiple, images. However, the ability to process a large number of visual tokens does not guarantee eff…

2024

See Say and Segment: Teaching LMMs to Overcome False Premises

CVPR 2024poster

Current open-source Large Multimodal Models (LMMs) excel at tasks such as open-vocabulary language grounding and segmentation but can suffer under false premises when queries imply the existence of something that is not actually present in the image. We observe that existing methods that fine-tune a…

Cited by 20SourcePDFScholar
2024

xT: Nested Tokenization for Larger Context in Large Images

ICML 2024poster

Modern computer vision pipelines handle large images in one of two sub-optimal ways: down-sampling or cropping. These two methods incur significant losses in the amount of information and context present in an image. There are many downstream applications in which global context matters as much as h…

2023

ClimSim: A large multi-scale dataset for hybrid physics-ML climate emulation

NeurIPS 2023oral

Modern climate projections lack adequate spatial and temporal resolution due to computational constraints. A consequence is inaccurate and imprecise predictions of critical processes such as storms. Hybrid methods that combine physics with machine learning (ML) have introduced a new generation of hi…

2023

SatlasPretrain: A Large-Scale Dataset for Remote Sensing Image Understanding

ICCV 2023poster

Remote sensing images are useful for a wide variety of planet monitoring applications, from tracking deforestation to tackling illegal fishing. The Earth is extremely diverse---the amount of potential tasks in remote sensing images is massive, and the sizes of features range from several kilometers…

Cited by 133PDFcodeScholar
2023

Scale-MAE: A Scale-Aware Masked Autoencoder for Multiscale Geospatial Representation Learning

ICCV 2023oral

Large, pretrained models are commonly finetuned with imagery that is heavily augmented to mimic different conditions and scales, with the resulting models used for various tasks with imagery from a range of spatial scales. Such models overlook scale-specific information in the data for scale-depende…

Cited by 201PDFcodeScholar
2022

xView3-SAR: Detecting Dark Fishing Activity Using Synthetic Aperture Radar Imagery

NeurIPS 2022accept

Unsustainable fishing practices worldwide pose a major threat to marine resources and ecosystems. Identifying vessels that do not show up in conventional monitoring systems---known as ``dark vessels''---is key to managing and securing the health of marine environments. With the rise of satellite-bas…