Title
Zero-Shot Learning by Convex Combination of Semantic Embeddings.
Abstract
Several recent publications have proposed methods for mapping images into continuous semantic embedding spaces. In some cases the embedding space is trained jointly with the image transformation. In other cases the semantic embedding space is established by an independent natural language processing task, and then the image transformation into that space is learned in a second stage. Proponents of these image embedding systems have stressed their advantages over the traditional \nway{} classification framing of image understanding, particularly in terms of the promise for zero-shot learning -- the ability to correctly annotate images of previously unseen object categories. In this paper, we propose a simple method for constructing an image embedding system from any existing \nway{} image classifier and a semantic word embedding model, which contains the $\n$ class labels in its vocabulary. Our method maps images into the semantic embedding space via convex combination of the class label embedding vectors, and requires no additional training. We show that this simple and direct method confers many of the advantages associated with more complex image embedding schemes, and indeed outperforms state of the art methods on the ImageNet zero-shot learning task.
Year
Venue
Field
2013
CoRR
Image classifier,Direct method,Embedding,Pattern recognition,Convex combination,Zero shot learning,Computer science,Image transformation,Artificial intelligence,Word embedding,Vocabulary,Machine learning
DocType
Volume
Citations 
Journal
abs/1312.5650
149
PageRank 
References 
Authors
4.50
15
8
Search Limit
100149
Name
Order
Citations
PageRank
Mohammad Norouzi1121256.60
Tomas Mikolov212984573.44
Samy Bengio37213485.82
Y Singer4134551559.02
Jonathon Shlens53851153.79
Frome, Andrea6104754.22
Greg Corrado710229373.23
Jeffrey Dean811804457.69