Papers › MergedNET: A simple approach for one-shot learning in siamese networks based on...
MergedNET: A simple approach for one-shot learning in siamese networks based on similarity layers
John Atanbori, Samuel Rose
Classifiers trained on disjointed classes with few labelled data points are used in one-shot learning to identify visual concepts from other classes. Recently, Siamese networks and similarity layers have been used to solve the one-shot learning problem, achieving state-of-the-art performance on visual-character recognition datasets. Various techniques have been developed over the years to improve the performance of these networks on fine-grained image classification datasets. They focused primarily on improving the loss and activation functions, augmenting visual features, employing multiscale metric learning, and pre-training and fine-tuning the backbone network. We investigate similarity layers for one-shot learning tasks and propose two frameworks for combining these layers into a MergedNet network. On all four datasets used in our experiment, MergedNet outperformed the baselines based on classification accuracy, and it generalises to other datasets when trained on miniImageNet.
Code
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Tasks
Results from the paper archive 2025-07-28
| Task | Dataset | Model | Metric | Value | Rank at snapshot | Leaderboard | Report |
|---|---|---|---|---|---|---|---|
| Few-Shot Image Classification | CUB 200 5-way 1-shot | MergedNet-Max | Accuracy | 75.34 | #25 of 36 | Archive leaderboard | report |
| Few-Shot Image Classification | CUB 200 5-way 5-shot | MergedNet-Max | Accuracy | 83.42 | #27 of 32 | Archive leaderboard | report |
| Few-Shot Image Classification | Caltech-256 5-way (1-shot) | MergedNet-Max | Accuracy | 65.77 | #3 of 3 | Archive leaderboard | report |
| Few-Shot Image Classification | Caltech-256 5-way (5-shot) | MergedNet-Concat | Accuracy | 81.34 | #1 of 1 | Archive leaderboard | report |
| Few-Shot Image Classification | Mini-Imagenet 5-way (1-shot) | MergedNet-Max | Accuracy | 68.05 | #40 of 105 | Archive leaderboard | report |
| Few-Shot Image Classification | Mini-Imagenet 5-way (5-shot) | MergedNet-Max | Accuracy | 80.40 | #51 of 95 | Archive leaderboard | report |
Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.
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