Unsupervised discovery of nonlinear structure using contrastive backpropagation.
We describe a way of modeling high-dimensional data vectors by using an unsupervised, nonlinear, multilayer neural network in which the activity of each neuron-like unit makes an additive contribution to a global energy score that indicates how surprised the network is by the data vector. The connec...
| मुख्य लेखकों: | , , , |
|---|---|
| स्वरूप: | Journal article |
| भाषा: | English |
| प्रकाशित: |
2006
|
| _version_ | 1826281304585404416 |
|---|---|
| author | Hinton, G Osindero, S Welling, M Teh, Y |
| author_facet | Hinton, G Osindero, S Welling, M Teh, Y |
| author_sort | Hinton, G |
| collection | OXFORD |
| description | We describe a way of modeling high-dimensional data vectors by using an unsupervised, nonlinear, multilayer neural network in which the activity of each neuron-like unit makes an additive contribution to a global energy score that indicates how surprised the network is by the data vector. The connection weights that determine how the activity of each unit depends on the activities in earlier layers are learned by minimizing the energy assigned to data vectors that are actually observed and maximizing the energy assigned to "confabulations" that are generated by perturbing an observed data vector in a direction that decreases its energy under the current model. |
| first_indexed | 2024-03-07T00:26:48Z |
| format | Journal article |
| id | oxford-uuid:7e696a80-79be-4bc6-a78c-834b6ef1a1ce |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:26:48Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:7e696a80-79be-4bc6-a78c-834b6ef1a1ce2022-03-26T21:09:58ZUnsupervised discovery of nonlinear structure using contrastive backpropagation.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7e696a80-79be-4bc6-a78c-834b6ef1a1ceEnglishSymplectic Elements at Oxford2006Hinton, GOsindero, SWelling, MTeh, YWe describe a way of modeling high-dimensional data vectors by using an unsupervised, nonlinear, multilayer neural network in which the activity of each neuron-like unit makes an additive contribution to a global energy score that indicates how surprised the network is by the data vector. The connection weights that determine how the activity of each unit depends on the activities in earlier layers are learned by minimizing the energy assigned to data vectors that are actually observed and maximizing the energy assigned to "confabulations" that are generated by perturbing an observed data vector in a direction that decreases its energy under the current model. |
| spellingShingle | Hinton, G Osindero, S Welling, M Teh, Y Unsupervised discovery of nonlinear structure using contrastive backpropagation. |
| title | Unsupervised discovery of nonlinear structure using contrastive backpropagation. |
| title_full | Unsupervised discovery of nonlinear structure using contrastive backpropagation. |
| title_fullStr | Unsupervised discovery of nonlinear structure using contrastive backpropagation. |
| title_full_unstemmed | Unsupervised discovery of nonlinear structure using contrastive backpropagation. |
| title_short | Unsupervised discovery of nonlinear structure using contrastive backpropagation. |
| title_sort | unsupervised discovery of nonlinear structure using contrastive backpropagation |
| work_keys_str_mv | AT hintong unsuperviseddiscoveryofnonlinearstructureusingcontrastivebackpropagation AT osinderos unsuperviseddiscoveryofnonlinearstructureusingcontrastivebackpropagation AT wellingm unsuperviseddiscoveryofnonlinearstructureusingcontrastivebackpropagation AT tehy unsuperviseddiscoveryofnonlinearstructureusingcontrastivebackpropagation |