Evidence map›Paper›PMID 32012944›Full record

ArticleSensors (Basel, Switzerland)2020

Deep Learning with Dynamically Weighted Loss Function for Sensor-Based Prognostics and Health Management.

Divish Rengasamy, Mina Jafari, Benjamin Rothwell, Xin Chen, Grazziela P Figueredo

Abstract read
In one paragraph

Article in Sensors (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Divish RengasamyGas Turbine and Transmissions Research Centre, The University of Nottingham, NG7 2RD, UK.ORCID 0000-0001-5397-1271
Mina JafariIntelligent Modelling and Analysis Group, School of Computer Science, The University of Nottingham, NG8 1BB, UK.
Benjamin RothwellGas Turbine and Transmissions Research Centre, The University of Nottingham, NG7 2RD, UK.
Xin ChenIntelligent Modelling and Analysis Group, School of Computer Science, The University of Nottingham, NG8 1BB, UK.
Grazziela P FigueredoThe Advanced Data Analysis Centre, The University of Nottingham, NG8 1BB, UK.

Funding

H2020 Marie Skłodowska-Curie Actions 665468
6 · The paper itself

Abstract

Deep learning has been employed to prognostic and health management of automotive and aerospace with promising results. Literature in this area has revealed that most contributions regarding deep learning is largely focused on the model's architecture. However, contributions regarding improvement of different aspects in deep learning, such as custom loss function for prognostic and health management are scarce. There is therefore an opportunity to improve upon the effectiveness of deep learning for the system's prognostics and diagnostics without modifying the models' architecture. To address this gap, the use of two different dynamically weighted loss functions, a newly proposed weighting mechanism and a focal loss function for prognostics and diagnostics task are investigated. A dynamically weighted loss function is expected to modify the learning process by augmenting the loss function with a weight value corresponding to the learning error of each data instance. The objective is to force deep learning models to focus on those instances where larger learning errors occur in order to improve their performance. The two loss functions used are evaluated using four popular deep learning architectures, namely, deep feedforward neural network, one-dimensional convolutional neural network, bidirectional gated recurrent unit and bidirectional long short-term memory on the commercial modular aero-propulsion system simulation data from NASA and air pressure system failure data for Scania trucks. Experimental results show that dynamically-weighted loss functions helps us achieve significant improvement for remaining useful life prediction and fault detection rate over non-weighted loss function predictions.

Indexed as

Biosensing TechniquesPopulation Health ManagementPrognosisAlgorithmsDeep LearningHumansNeural Networks, ComputerWeight Lossdeep learningloss functionpredictive maintenanceprognostics and health managementweighted loss function

Identifiers

PMID32012944
PMCPMC7038523

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.