Regression Model for Exercise Tolerance Functioning Levels (ICF b455)
Description
A fine-tuned regression model that assigns a functioning level to Dutch sentences describing exercise tolerance functions. The model is based on a pre-trained Dutch medical language model (link to be added): a RoBERTa model, trained from scratch on clinical notes of the Amsterdam UMC. To detect sentences about exercise tolerance functions in clinical text in Dutch, use the icf-domains classification model.
Functioning levels
Level | Meaning |
---|---|
5 | MET>6. Can tolerate jogging, hard exercises, running, climbing stairs fast, sports. |
4 | 4≤MET≤6. Can tolerate walking / cycling at a brisk pace, considerable effort (e.g. cycling from 16 km/h), heavy housework. |
3 | 3≤MET<4. Can tolerate walking / cycling at a normal pace, gardening, exercises without equipment. |
2 | 2≤MET<3. Can tolerate walking at a slow to moderate pace, grocery shopping, light housework. |
1 | 1≤MET<2. Can tolerate sitting activities. |
0 | 0≤MET<1. Can physically tolerate only recumbent activities. |
The predictions generated by the model might sometimes be outside of the scale (e.g. 5.2); this is normal in a regression model.
Intended uses and limitations
- The model was fine-tuned (trained, validated and tested) on medical records from the Amsterdam UMC (the two academic medical centers of Amsterdam). It might perform differently on text from a different hospital or text from non-hospital sources (e.g. GP records).
- The model was fine-tuned with the Simple Transformers library. This library is based on Transformers but the model cannot be used directly with Transformers
pipeline
and classes; doing so would generate incorrect outputs. For this reason, the API on this page is disabled.
How to use
To generate predictions with the model, use the Simple Transformers library:
from simpletransformers.classification import ClassificationModel
model = ClassificationModel(
'roberta',
'CLTL/icf-levels-ins',
use_cuda=False,
)
example = 'kan nog goed traplopen, maar flink ingeleverd aan conditie na Corona'
_, raw_outputs = model.predict([example])
predictions = np.squeeze(raw_outputs)
The prediction on the example is:
3.13
The raw outputs look like this:
[[3.1300993]]
Training data
- The training data consists of clinical notes from medical records (in Dutch) of the Amsterdam UMC. Due to privacy constraints, the data cannot be released.
- The annotation guidelines used for the project can be found here.
Training procedure
The default training parameters of Simple Transformers were used, including:
- Optimizer: AdamW
- Learning rate: 4e-5
- Num train epochs: 1
- Train batch size: 8
Evaluation results
The evaluation is done on a sentence-level (the classification unit) and on a note-level (the aggregated unit which is meaningful for the healthcare professionals).
Sentence-level | Note-level | |
---|---|---|
mean absolute error | 0.69 | 0.61 |
mean squared error | 0.80 | 0.64 |
root mean squared error | 0.89 | 0.80 |
Authors and references
Authors
Jenia Kim, Piek Vossen
References
TBD
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