File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Progressive Feature Transmission for Split Classification at the Wireless Edge

TitleProgressive Feature Transmission for Split Classification at the Wireless Edge
Authors
Issue Date2022
Citation
IEEE Transactions on Wireless Communications, 2022 How to Cite?
AbstractWe consider the scenario of inference at the wire-less edge, in which devices are connected to an edge server and ask the server to carry out remote classification, that is, classify data samples available at edge devices. This requires the edge devices to upload high-dimensional features of samples over resource-constrained wireless channels, which creates a communication bottleneck. The conventional feature pruning solution would require the device to have access to the inference model, which is not available in the current split inference scenario. To address this issue, we propose the progressive feature transmission (ProgressFTX) protocol, which minimizes the overhead by progressively transmitting features until a target confidence level is reached. A control policy is proposed to accelerate inference, comprising two key operations: importance-aware feature selection at the server and transmission-termination control. For the former, it is shown that selecting the most important features, characterized by the largest discriminant gains of the corresponding feature dimensions, achieves a sub-optimal performance. For the latter, the proposed policy is shown to exhibit a threshold structure. Specifically, the transmission is stopped when the incremental uncertainty reduction by further feature transmission is outweighed by its communication cost. The indices of the selected features and transmission decision are fed back to the device in each slot. The control policy is first derived for the tractable case of linear classification, and then extended to the more complex case of classification using a convolutional neural network. Both Gaussian and fading channels are considered. Experimental results are obtained for both a statistical data model and a real dataset. It is shown that ProgressFTX can substantially reduce the communication latency compared to conventional feature pruning and random feature transmission strategies.
Persistent Identifierhttp://hdl.handle.net/10722/326371
ISSN
2023 Impact Factor: 8.9
2023 SCImago Journal Rankings: 5.371
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLan, Qiao-
dc.contributor.authorZeng, Qunsong-
dc.contributor.authorPopovski, Petar-
dc.contributor.authorGunduz, Deniz-
dc.contributor.authorHuang, Kaibin-
dc.date.accessioned2023-03-09T10:00:09Z-
dc.date.available2023-03-09T10:00:09Z-
dc.date.issued2022-
dc.identifier.citationIEEE Transactions on Wireless Communications, 2022-
dc.identifier.issn1536-1276-
dc.identifier.urihttp://hdl.handle.net/10722/326371-
dc.description.abstractWe consider the scenario of inference at the <italic>wire-less edge</italic>, in which devices are connected to an edge server and ask the server to carry out remote classification, that is, classify data samples available at edge devices. This requires the edge devices to upload high-dimensional features of samples over resource-constrained wireless channels, which creates a communication bottleneck. The conventional feature pruning solution would require the device to have access to the inference model, which is not available in the current split inference scenario. To address this issue, we propose the <italic>progressive feature transmission</italic> (ProgressFTX) protocol, which minimizes the overhead by progressively transmitting features until a target confidence level is reached. A control policy is proposed to accelerate inference, comprising two key operations: <italic>importance-aware feature selection</italic> at the server and <italic>transmission-termination control</italic>. For the former, it is shown that selecting the most important features, characterized by the largest discriminant gains of the corresponding feature dimensions, achieves a sub-optimal performance. For the latter, the proposed policy is shown to exhibit a threshold structure. Specifically, the transmission is stopped when the incremental uncertainty reduction by further feature transmission is outweighed by its communication cost. The indices of the selected features and transmission decision are fed back to the device in each slot. The control policy is first derived for the tractable case of linear classification, and then extended to the more complex case of classification using a <italic>convolutional neural network</italic>. Both Gaussian and fading channels are considered. Experimental results are obtained for both a statistical data model and a real dataset. It is shown that ProgressFTX can substantially reduce the communication latency compared to conventional feature pruning and random feature transmission strategies.-
dc.languageeng-
dc.relation.ispartofIEEE Transactions on Wireless Communications-
dc.titleProgressive Feature Transmission for Split Classification at the Wireless Edge-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/TWC.2022.3221778-
dc.identifier.scopuseid_2-s2.0-85142825494-
dc.identifier.eissn1558-2248-
dc.identifier.isiWOS:001005672500018-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats