Framing Image Description as a Ranking Task: Data, Models and Evaluation Metrics

By Micah Hodosh, Peter Young, Julia Hockenmaier. 2013

1,460 citations recorded by the source corpus.

The ability to associate images with natural language sentences that describe what is depicted in them is a hallmark of image understanding, and a prerequisite for applications such as sentence-based image search. In analogy to image search, we propose to frame sentence-based image annotation as the task of ranking a given pool of captions. We introduce a new benchmark collection for sentence-based image description and search, consisting of 8,000 images that are each paired with five different captions which provide clear descriptions of the salient entities and events. We introduce a number of systems that perform quite well on this task, even though they are only based on features that can be obtained with minimal supervision. Our results clearly indicate the importance of training on multiple captions per image, and of capturing syntactic (word order-based) and semantic features of these captions. We also perform an in-depth comparison of human and automatic evaluation metrics for this task, and propose strategies for collecting human judgments cheaply and on a very large scale, allowing us to augment our collection with additional relevance judgments of which captions describe which image. Our analysis shows that metrics that consider the ranked list of results for each query image or sentence are significantly more robust than metrics that are based on a single response per query. Moreover, our study suggests that the evaluation of ranking-based image description systems may be fully automated.

Subfields: Computer Vision and Pattern Recognition, Natural Language Processing

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In Computer Vision and Pattern Recognition

  1. Luc Van Gool
  2. Dacheng Tao
  3. Trevor Darrell
  4. Xiaogang Wang
  5. Yi Yang
  6. Ming-Hsuan Yang
  7. Jitendra Malik
  8. Andrew Zisserman

In Natural Language Processing

  1. Mohit Bansal
  2. Jianfeng Gao
  3. Kyunghyun Cho
  4. Yejin Choi
  5. Christopher D. Manning
  6. Richard Socher
  7. Luke S. Zettlemoyer
  8. Graham Neubig

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