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Kyusong Lee

4 accepted papers

2024

How to Evaluate the Generalization of Detection? A Benchmark for Comprehensive Open-Vocabulary Detection

AAAI 2024technical

Object detection (OD) in computer vision has made significant progress in recent years, transitioning from closed-set labels to open-vocabulary detection (OVD) based on large-scale vision-language pre-training (VLP). However, current evaluation methods and datasets are limited to testing generalizat…

2024

OmAgent: A Multi-modal Agent Framework for Complex Video Understanding with Task Divide-and-Conquer

EMNLP 2024main

Recent advancements in Large Language Models (LLMs) have expanded their capabilities to multimodal contexts, including comprehensive video understanding. However, processing extensive videos such as 24-hour CCTV footage or full-length films presents significant challenges due to the vast data and pr…

2021

SPARTA: Efficient Open-Domain Question Answering via Sparse Transformer Matching Retrieval

NAACL 2021long

We introduce SPARTA, a novel neural retrieval method that shows great promise in performance, generalization, and interpretability for open-domain question answering. Unlike many neural ranking methods that use dense vector nearest neighbor search, SPARTA learns a sparse representation that can be e…

Cited by 92SourcePDFScholar
2021

VisualSparta: An Embarrassingly Simple Approach to Large-scale Text-to-Image Search with Weighted Bag-of-words

ACL 2021long

Text-to-image retrieval is an essential task in cross-modal information retrieval, i.e., retrieving relevant images from a large and unlabelled dataset given textual queries. In this paper, we propose VisualSparta, a novel (Visual-text Sparse Transformer Matching) model that shows significant improv…

Cited by 29SourcePDFScholar