papers

Publications (11)

cs.CL2022

Modal-specific Pseudo Query Generation for Video Corpus Moment Retrieval

Minjoon Jung, Seongho Choi, Joochan Kim +2

Video corpus moment retrieval (VCMR) is the task to retrieve the most relevant video moment from a large video corpus using a natural language query. For narrative videos, e.g., dr…

cs.AI2019

Constructing Hierarchical Q&A Datasets for Video Story Understanding

Yu-Jung Heo, Kyoung-Woon On, Seongho Choi +5

Video understanding is emerging as a new paradigm for studying human-like AI. Question-and-Answering (Q&A) is used as a general benchmark to measure the level of intelligence for v…

cs.CV2025

Continual Vision-and-Language Navigation

Seongjun Jeong, Gi-Cheon Kang, Seongho Choi +2

Developing Vision-and-Language Navigation (VLN) agents typically assumes a \textit{train-once-deploy-once} strategy, which is unrealistic as deployed agents continually encounter n…

cs.CV2024

CogME: A Cognition-Inspired Multi-Dimensional Evaluation Metric for Story Understanding

Minjung Shin, Seongho Choi, Yu-Jung Heo +3

We introduce CogME, a cognition-inspired, multi-dimensional evaluation metric designed for AI models focusing on story understanding. CogME is a framework grounded in human thinkin…

cs.CL2020

DramaQA: Character-Centered Video Story Understanding with Hierarchical QA

Seongho Choi, Kyoung-Woon On, Yu-Jung Heo +4

Despite recent progress on computer vision and natural language processing, developing a machine that can understand video story is still hard to achieve due to the intrinsic diffi…

cs.CL2026

A.X K1 Technical Report

Sung Jun Cheon, Jaekyung Cho, Seongho Choi +57

We introduce A.X K1, a 519B-parameter Mixture-of-Experts (MoE) language model trained from scratch. Our design leverages scaling laws to optimize training configurations and vocabu…