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Zero-Shot Recognition via Semantic Embeddings and Knowledge Graphs

CVPR 2018 · Graph learning › Knowledge and temporal graphs · approach: Knowledge graph embeddings

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
use graph convolutions over category relationships alongside semantic embeddingszero-shot recognition on NELL/NEIL · NELL/NEIL All EdgesHit@10 (%): 21.4 -> 49.0Helped
use graph convolutions to predict visual classifierszero-shot recognition on ImageNet · ImageNet 2-hops, unseen classesHit@5 (%): 32.3 -> 50.1Helped
use graph convolutions to predict visual classifierszero-shot recognition on ImageNet · ImageNet 3-hops, unseen classesHit@5 (%): 10.7 -> 13.1Helped
increase the GCN depth from 2 to 6 layers (ablation)Ours on NELL/NEIL All Edges · NELL/NEIL All EdgesHit@10 (%): 24.3 -> 49.0Helped
increase the GCN depth from 4 to 6 layers (ablation)Ours on NELL/NEIL All Edges · NELL/NEIL All EdgesHit@10 (%): 41.8 -> 49.0Helped
replace the semantic knowledge graph with a star graph (ablation)Ours on NELL/NEIL All Edges · NELL/NEIL All EdgesHit@10 (%): 49.0 -> 9.7Hurt
replace the semantic knowledge graph with a random graph (ablation)Ours on NELL/NEIL All Edges · NELL/NEIL All EdgesHit@10 (%): 49.0 -> 11.3Hurt
increase graph size from High Value Edges to All Edges (ablation)Ours on NELL/NEIL · NELL/NEIL, 88 unseen classesHit@10 (%): 47.9 -> 49.0Helped
drop 5% to 10% of graph edges (ablation)Ours on NELL/NEIL All Edges · NELL/NEIL All EdgesaccuracyNo clear effect
drop more than 30% of graph edges (ablation)Ours on NELL/NEIL All Edges · NELL/NEIL All EdgesaccuracyHurt
replace Inception-v1 features with ResNet-50 features (ablation)Ours on ImageNet · ImageNet 2-hops, unseen classesHit@5 (%): 50.1 -> 53.2Helped
change category embeddings from GloVe to FastText (ablation)Ours on ImageNet · ImageNet 2-hops, unseen classesHit@5 (%): 50.1 -> 49.6No clear effect

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