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- ---
2
- language:
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- - english
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- thumbnail: "https://www.onebraveidea.org/wp-content/uploads/2019/07/OBI-Logo-Website.png"
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- tags:
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- - deidentification
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- - medical notes
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- - ehr
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- - phi
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- datasets:
11
- - I2B2
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- metrics:
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- - F1
14
- - Recall
15
- - Precision
16
- widget:
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- - text: "Physician Discharge Summary Admit date: 10/12/1982 Discharge date: 10/22/1982 Patient Information Jack Reacher, 54 y.o. male (DOB = 1/21/1928)."
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- - text: "Home Address: 123 Park Drive, San Diego, CA, 03245. Home Phone: 202-555-0199 (home)."
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- - text: "Hospital Care Team Service: Orthopedics Inpatient Attending: Roger C Kelly, MD Attending phys phone: (634)743-5135 Discharge Unit: HCS843 Primary Care Physician: Hassan V Kim, MD 512-832-5025."
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- license: mit
21
- ---
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-
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- # Model Description
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-
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- * A RoBERTa [[Liu et al., 2019]](https://arxiv.org/pdf/1907.11692.pdf) model fine-tuned for de-identification of medical notes.
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- * Sequence Labeling (token classification): The model was trained to predict protected health information (PHI/PII) entities (spans). A list of protected health information categories is given by [HIPAA](https://www.hhs.gov/hipaa/for-professionals/privacy/laws-regulations/index.html).
27
- * A token can either be classified as non-PHI or as one of the 11 PHI types. Token predictions are aggregated to spans by making use of BILOU tagging.
28
- * The PHI labels that were used for training and other details can be found here: [Annotation Guidelines](https://github.com/obi-ml-public/ehr_deidentification/blob/master/AnnotationGuidelines.md)
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- * More details on how to use this model, the format of data and other useful information is present in the GitHub repo: [Robust DeID](https://github.com/obi-ml-public/ehr_deidentification).
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-
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-
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- # How to use
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-
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- * A demo on how the model works (using model predictions to de-identify a medical note) is on this space: [Medical-Note-Deidentification](https://huggingface.co/spaces/obi/Medical-Note-Deidentification).
35
- * Steps on how this model can be used to run a forward pass can be found here: [Forward Pass](https://github.com/obi-ml-public/ehr_deidentification/tree/master/steps/forward_pass)
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- * In brief, the steps are:
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- * Sentencize (the model aggregates the sentences back to the note level) and tokenize the dataset.
38
- * Use the predict function of this model to gather the predictions (i.e., predictions for each token).
39
- * Additionally, the model predictions can be used to remove PHI from the original note/text.
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-
41
-
42
- # Dataset
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-
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- * The I2B2 2014 [[Stubbs and Uzuner, 2015]](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4978170/) dataset was used to train this model.
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-
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- | | I2B2 | | I2B2 | |
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- | --------- | --------------------- | ---------- | -------------------- | ---------- |
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- | | TRAIN SET - 790 NOTES | | TEST SET - 514 NOTES | |
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- | PHI LABEL | COUNT | PERCENTAGE | COUNT | PERCENTAGE |
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- | DATE | 7502 | 43.69 | 4980 | 44.14 |
51
- | STAFF | 3149 | 18.34 | 2004 | 17.76 |
52
- | HOSP | 1437 | 8.37 | 875 | 7.76 |
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- | AGE | 1233 | 7.18 | 764 | 6.77 |
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- | LOC | 1206 | 7.02 | 856 | 7.59 |
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- | PATIENT | 1316 | 7.66 | 879 | 7.79 |
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- | PHONE | 317 | 1.85 | 217 | 1.92 |
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- | ID | 881 | 5.13 | 625 | 5.54 |
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- | PATORG | 124 | 0.72 | 82 | 0.73 |
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- | EMAIL | 4 | 0.02 | 1 | 0.01 |
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- | OTHERPHI | 2 | 0.01 | 0 | 0 |
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- | TOTAL | 17171 | 100 | 11283 | 100 |
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-
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-
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- # Training procedure
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-
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- * Steps on how this model was trained can be found here: [Training](https://github.com/obi-ml-public/ehr_deidentification/tree/master/steps/train). The "model_name_or_path" was set to: "roberta-large".
67
- * The dataset was sentencized with the en_core_sci_sm sentencizer from spacy.
68
- * The dataset was then tokenized with a custom tokenizer built on top of the en_core_sci_sm tokenizer from spacy.
69
- * For each sentence we added 32 tokens on the left (from previous sentences) and 32 tokens on the right (from the next sentences).
70
- * The added tokens are not used for learning - i.e, the loss is not computed on these tokens - they are used as additional context.
71
- * Each sequence contained a maximum of 128 tokens (including the 32 tokens added on). Longer sequences were split.
72
- * The sentencized and tokenized dataset with the token level labels based on the BILOU notation was used to train the model.
73
- * The model is fine-tuned from a pre-trained RoBERTa model.
74
-
75
- * Training details:
76
- * Input sequence length: 128
77
- * Batch size: 32 (16 with 2 gradient accumulation steps)
78
- * Optimizer: AdamW
79
- * Learning rate: 5e-5
80
- * Dropout: 0.1
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-
82
-
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- ## Results
84
-
85
- # Questions?
86
-
87
- Post a Github issue on the repo: [Robust DeID](https://github.com/obi-ml-public/ehr_deidentification).
 
1
+ ---
2
+ language:
3
+ - en
4
+ thumbnail: "https://www.onebraveidea.org/wp-content/uploads/2019/07/OBI-Logo-Website.png"
5
+ tags:
6
+ - deidentification
7
+ - medical notes
8
+ - ehr
9
+ - phi
10
+ datasets:
11
+ - I2B2
12
+ metrics:
13
+ - F1
14
+ - Recall
15
+ - Precision
16
+ widget:
17
+ - text: "Physician Discharge Summary Admit date: 10/12/1982 Discharge date: 10/22/1982 Patient Information Jack Reacher, 54 y.o. male (DOB = 1/21/1928)."
18
+ - text: "Home Address: 123 Park Drive, San Diego, CA, 03245. Home Phone: 202-555-0199 (home)."
19
+ - text: "Hospital Care Team Service: Orthopedics Inpatient Attending: Roger C Kelly, MD Attending phys phone: (634)743-5135 Discharge Unit: HCS843 Primary Care Physician: Hassan V Kim, MD 512-832-5025."
20
+ license: mit
21
+ ---
22
+
23
+ # Model Description
24
+
25
+ * A RoBERTa [[Liu et al., 2019]](https://arxiv.org/pdf/1907.11692.pdf) model fine-tuned for de-identification of medical notes.
26
+ * Sequence Labeling (token classification): The model was trained to predict protected health information (PHI/PII) entities (spans). A list of protected health information categories is given by [HIPAA](https://www.hhs.gov/hipaa/for-professionals/privacy/laws-regulations/index.html).
27
+ * A token can either be classified as non-PHI or as one of the 11 PHI types. Token predictions are aggregated to spans by making use of BILOU tagging.
28
+ * The PHI labels that were used for training and other details can be found here: [Annotation Guidelines](https://github.com/obi-ml-public/ehr_deidentification/blob/master/AnnotationGuidelines.md)
29
+ * More details on how to use this model, the format of data and other useful information is present in the GitHub repo: [Robust DeID](https://github.com/obi-ml-public/ehr_deidentification).
30
+
31
+
32
+ # How to use
33
+
34
+ * A demo on how the model works (using model predictions to de-identify a medical note) is on this space: [Medical-Note-Deidentification](https://huggingface.co/spaces/obi/Medical-Note-Deidentification).
35
+ * Steps on how this model can be used to run a forward pass can be found here: [Forward Pass](https://github.com/obi-ml-public/ehr_deidentification/tree/master/steps/forward_pass)
36
+ * In brief, the steps are:
37
+ * Sentencize (the model aggregates the sentences back to the note level) and tokenize the dataset.
38
+ * Use the predict function of this model to gather the predictions (i.e., predictions for each token).
39
+ * Additionally, the model predictions can be used to remove PHI from the original note/text.
40
+
41
+
42
+ # Dataset
43
+
44
+ * The I2B2 2014 [[Stubbs and Uzuner, 2015]](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4978170/) dataset was used to train this model.
45
+
46
+ | | I2B2 | | I2B2 | |
47
+ | --------- | --------------------- | ---------- | -------------------- | ---------- |
48
+ | | TRAIN SET - 790 NOTES | | TEST SET - 514 NOTES | |
49
+ | PHI LABEL | COUNT | PERCENTAGE | COUNT | PERCENTAGE |
50
+ | DATE | 7502 | 43.69 | 4980 | 44.14 |
51
+ | STAFF | 3149 | 18.34 | 2004 | 17.76 |
52
+ | HOSP | 1437 | 8.37 | 875 | 7.76 |
53
+ | AGE | 1233 | 7.18 | 764 | 6.77 |
54
+ | LOC | 1206 | 7.02 | 856 | 7.59 |
55
+ | PATIENT | 1316 | 7.66 | 879 | 7.79 |
56
+ | PHONE | 317 | 1.85 | 217 | 1.92 |
57
+ | ID | 881 | 5.13 | 625 | 5.54 |
58
+ | PATORG | 124 | 0.72 | 82 | 0.73 |
59
+ | EMAIL | 4 | 0.02 | 1 | 0.01 |
60
+ | OTHERPHI | 2 | 0.01 | 0 | 0 |
61
+ | TOTAL | 17171 | 100 | 11283 | 100 |
62
+
63
+
64
+ # Training procedure
65
+
66
+ * Steps on how this model was trained can be found here: [Training](https://github.com/obi-ml-public/ehr_deidentification/tree/master/steps/train). The "model_name_or_path" was set to: "roberta-large".
67
+ * The dataset was sentencized with the en_core_sci_sm sentencizer from spacy.
68
+ * The dataset was then tokenized with a custom tokenizer built on top of the en_core_sci_sm tokenizer from spacy.
69
+ * For each sentence we added 32 tokens on the left (from previous sentences) and 32 tokens on the right (from the next sentences).
70
+ * The added tokens are not used for learning - i.e, the loss is not computed on these tokens - they are used as additional context.
71
+ * Each sequence contained a maximum of 128 tokens (including the 32 tokens added on). Longer sequences were split.
72
+ * The sentencized and tokenized dataset with the token level labels based on the BILOU notation was used to train the model.
73
+ * The model is fine-tuned from a pre-trained RoBERTa model.
74
+
75
+ * Training details:
76
+ * Input sequence length: 128
77
+ * Batch size: 32 (16 with 2 gradient accumulation steps)
78
+ * Optimizer: AdamW
79
+ * Learning rate: 5e-5
80
+ * Dropout: 0.1
81
+
82
+
83
+ ## Results
84
+
85
+ # Questions?
86
+
87
+ Post a Github issue on the repo: [Robust DeID](https://github.com/obi-ml-public/ehr_deidentification).