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Main Authors: Jiang, Kailin, Jiang, Ning, Du, Yuntao, Ren, Yuchen, Li, Yuchen, Gao, Yifan, Bi, Jinhe, Ma, Yunpu, Li, Bin, Liu, Lei, Li, Qing
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2510.19457
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author Jiang, Kailin
Jiang, Ning
Du, Yuntao
Ren, Yuchen
Li, Yuchen
Gao, Yifan
Bi, Jinhe
Ma, Yunpu
Li, Bin
Liu, Lei
Li, Qing
author_facet Jiang, Kailin
Jiang, Ning
Du, Yuntao
Ren, Yuchen
Li, Yuchen
Gao, Yifan
Bi, Jinhe
Ma, Yunpu
Li, Bin
Liu, Lei
Li, Qing
contents Large Multimodal Models (LMMs) encode rich factual knowledge via cross-modal pre-training, yet their static representations struggle to maintain an accurate understanding of time-sensitive factual knowledge. Existing benchmarks remain constrained by static designs, inadequately evaluating LMMs' ability to understand time-sensitive knowledge. To address this gap, we propose MINED, a comprehensive benchmark that evaluates temporal awareness along 6 key dimensions and 11 challenging tasks: cognition, awareness, trustworthiness, understanding, reasoning, and robustness. MINED is constructed from Wikipedia by two professional annotators, containing 2,104 time-sensitive knowledge samples spanning six knowledge types. Evaluating 15 widely used LMMs on MINED shows that Gemini-2.5-Pro achieves the highest average CEM score of 63.07, while most open-source LMMs still lack time understanding ability. Meanwhile, LMMs perform best on organization knowledge, whereas their performance is weakest on sport. To address these challenges, we investigate the feasibility of updating time-sensitive knowledge in LMMs through knowledge editing methods and observe that LMMs can effectively update knowledge via knowledge editing methods in single editing scenarios.
format Preprint
id arxiv_https___arxiv_org_abs_2510_19457
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle MINED: Probing and Updating with Multimodal Time-Sensitive Knowledge for Large Multimodal Models
Jiang, Kailin
Jiang, Ning
Du, Yuntao
Ren, Yuchen
Li, Yuchen
Gao, Yifan
Bi, Jinhe
Ma, Yunpu
Li, Bin
Liu, Lei
Li, Qing
Computation and Language
Large Multimodal Models (LMMs) encode rich factual knowledge via cross-modal pre-training, yet their static representations struggle to maintain an accurate understanding of time-sensitive factual knowledge. Existing benchmarks remain constrained by static designs, inadequately evaluating LMMs' ability to understand time-sensitive knowledge. To address this gap, we propose MINED, a comprehensive benchmark that evaluates temporal awareness along 6 key dimensions and 11 challenging tasks: cognition, awareness, trustworthiness, understanding, reasoning, and robustness. MINED is constructed from Wikipedia by two professional annotators, containing 2,104 time-sensitive knowledge samples spanning six knowledge types. Evaluating 15 widely used LMMs on MINED shows that Gemini-2.5-Pro achieves the highest average CEM score of 63.07, while most open-source LMMs still lack time understanding ability. Meanwhile, LMMs perform best on organization knowledge, whereas their performance is weakest on sport. To address these challenges, we investigate the feasibility of updating time-sensitive knowledge in LMMs through knowledge editing methods and observe that LMMs can effectively update knowledge via knowledge editing methods in single editing scenarios.
title MINED: Probing and Updating with Multimodal Time-Sensitive Knowledge for Large Multimodal Models
topic Computation and Language
url https://arxiv.org/abs/2510.19457