Exploiting Semantic Role Contextualized Video Features for Multi-Instance Text-Video Retrieval EPIC-KITCHENS-100 Multi-Instance Retrieval Challenge 2022

29 Jun 2022  ·  Burak Satar, Hongyuan Zhu, Hanwang Zhang, Joo Hwee Lim ·

In this report, we present our approach for EPIC-KITCHENS-100 Multi-Instance Retrieval Challenge 2022. We first parse sentences into semantic roles corresponding to verbs and nouns; then utilize self-attentions to exploit semantic role contextualized video features along with textual features via triplet losses in multiple embedding spaces. Our method overpasses the strong baseline in normalized Discounted Cumulative Gain (nDCG), which is more valuable for semantic similarity. Our submission is ranked 3rd for nDCG and ranked 4th for mAP.

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Datasets


Task Dataset Model Metric Name Metric Value Global Rank Result Benchmark
Multi-Instance Retrieval EPIC-KITCHENS-100 Satar et al. mAP(V2T) 47.5 # 6
mAP(T2V) 38.1 # 6
mAP (Avg) 42.8 # 9
nDCG (V2T) 56.5 # 6
nDCG (T2V) 54.1 # 6
nDCG (Avg) 55.3 # 9

Methods


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