Multiple-instance learning with structured bag models

<p>Traditional approaches to Multiple-Instance Learning (MIL) operate under the assumption that the instances of a bag are generated independently, and therefore typically learn an instance-level classifier which does not take into account possible dependencies between instances. This assumpti...

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Main Authors: Warrell, J, Torr, PHS
Format: Conference item
Language:English
Published: Springer 2011
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author Warrell, J
Torr, PHS
author_facet Warrell, J
Torr, PHS
author_sort Warrell, J
collection OXFORD
description <p>Traditional approaches to Multiple-Instance Learning (MIL) operate under the assumption that the instances of a bag are generated independently, and therefore typically learn an instance-level classifier which does not take into account possible dependencies between instances. This assumption is particularly inappropriate in visual data, where spatial dependencies are the norm. We introduce here techniques for incorporating MIL constraints into Conditional Random Field models, thus providing a set of tools for constructing&nbsp;<em>structured bag</em>&nbsp;models, in which spatial (or other) dependencies are represented. Further, we show how Deterministic Annealing, which has proved a successful method for training non-structured MIL models, can also form the basis of training models with structured bags. Results are given on various segmentation tasks.</p>
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spelling oxford-uuid:4ccc13ca-adff-46be-9f7e-3498481a1ce22024-10-24T14:15:57ZMultiple-instance learning with structured bag models Conference itemhttp://purl.org/coar/resource_type/c_5794uuid:4ccc13ca-adff-46be-9f7e-3498481a1ce2EnglishSymplectic ElementsSpringer2011Warrell, JTorr, PHS<p>Traditional approaches to Multiple-Instance Learning (MIL) operate under the assumption that the instances of a bag are generated independently, and therefore typically learn an instance-level classifier which does not take into account possible dependencies between instances. This assumption is particularly inappropriate in visual data, where spatial dependencies are the norm. We introduce here techniques for incorporating MIL constraints into Conditional Random Field models, thus providing a set of tools for constructing&nbsp;<em>structured bag</em>&nbsp;models, in which spatial (or other) dependencies are represented. Further, we show how Deterministic Annealing, which has proved a successful method for training non-structured MIL models, can also form the basis of training models with structured bags. Results are given on various segmentation tasks.</p>
spellingShingle Warrell, J
Torr, PHS
Multiple-instance learning with structured bag models
title Multiple-instance learning with structured bag models
title_full Multiple-instance learning with structured bag models
title_fullStr Multiple-instance learning with structured bag models
title_full_unstemmed Multiple-instance learning with structured bag models
title_short Multiple-instance learning with structured bag models
title_sort multiple instance learning with structured bag models
work_keys_str_mv AT warrellj multipleinstancelearningwithstructuredbagmodels
AT torrphs multipleinstancelearningwithstructuredbagmodels