Search Results for author: Ben Harwood

Found 9 papers, 2 papers with code

Approximate Nearest Neighbour Search on Dynamic Datasets: An Investigation

no code implementations30 Apr 2024 Ben Harwood, Amir Dezfouli, Iadine Chades, Conrad Sanderson

For online feature learning, the Scalable Nearest Neighbours method is faster than baseline for recall rates below 75%.

Delta Descriptors: Change-Based Place Representation for Robust Visual Localization

1 code implementation10 Jun 2020 Sourav Garg, Ben Harwood, Gaurangi Anand, Michael Milford

Visual place recognition is challenging because there are so many factors that can cause the appearance of a place to change, from day-night cycles to seasonal change to atmospheric conditions.

Autonomous Driving Image Retrieval +4

Temporally Coherent Embeddings for Self-Supervised Video Representation Learning

1 code implementation21 Mar 2020 Joshua Knights, Ben Harwood, Daniel Ward, Anthony Vanderkop, Olivia Mackenzie-Ross, Peyman Moghadam

The proposed method exploits inherent structure of unlabeled video data to explicitly enforce temporal coherency in the embedding space, rather than indirectly learning it through ranking or predictive proxy tasks.

Metric Learning Representation Learning +3

Generalised Zero-Shot Learning with Domain Classification in a Joint Semantic and Visual Space

no code implementations14 Aug 2019 Rafael Felix, Ben Harwood, Michele Sasdelli, Gustavo Carneiro

Most state-of-the-art GZSL approaches rely on a mapping between latent visual and semantic spaces without considering if a particular sample belongs to the set of seen or unseen classes.

domain classification General Classification +1

Deep Metric Learning and Image Classification with Nearest Neighbour Gaussian Kernels

no code implementations27 May 2017 Benjamin J. Meyer, Ben Harwood, Tom Drummond

We present a Gaussian kernel loss function and training algorithm for convolutional neural networks that can be directly applied to both distance metric learning and image classification problems.

General Classification Image Classification +1

Smart Mining for Deep Metric Learning

no code implementations ICCV 2017 Ben Harwood, Vijay Kumar B G, Gustavo Carneiro, Ian Reid, Tom Drummond

In this paper, we propose a novel deep metric learning method that combines the triplet model and the global structure of the embedding space.

Metric Learning

FANNG: Fast Approximate Nearest Neighbour Graphs

no code implementations CVPR 2016 Ben Harwood, Tom Drummond

We also provide an efficient search algorithm that uses this graph to rapidly find the nearest neighbour to a query with high probability.

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