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Visual Question Answering with Question Representation Update (QRU)

NeurIPS 2016 · Vision-language and multimodal › Visual question answering · approach: Universal VQA models

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
replace attention-weighted pooling with mean pooling (ablation)QRU (1 reasoning layer) · COCO-QAACC.: 61.99 -> 58.15 without (about -3.84 with mean pooling)Helped
replace attention-weighted pooling with max pooling (ablation)QRU (1 reasoning layer) · COCO-QAACC.: 61.99 -> 59.37Helped
remove whole-image global region from image features (ablation)QRU (1 reasoning layer) · COCO-QAACC.: 61.99 -> 60.87 (drop of 1.12)Helped
remove 8D spatial coordinate encoding of regions (ablation)QRU (1 reasoning layer) · COCO-QAACC.: 61.99 -> 61.33Helped
increase reasoning layers from one to twoQRU · COCO-QAACC.: 61.99 -> 62.50Helped
increase reasoning layers from one to twoQRU · VQA test-dev Open-EndedAll: 59.26 -> 60.72Helped
use three or more reasoning layers instead of twoQRU · COCO-QAACC.No clear effect
use object proposals (19 edge boxes plus whole image) instead of global attention over CNN feature mapQRU · VQA test-dev Open-EndedAll: Other type gain; QRU (2) 60.72 vs SAN 58.70Helped

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