Extract Test Entities from Voice of the Patient Documents (LangTest

Description

This model extracts test mentions from the documents transferred from the patient’s own sentences. It is the version of ner_vop_test model augmented with langtest library.

test_type before fail_count after fail_count before pass_count after pass_count minimum pass_rate before pass_rate after pass_rate
add_abbreviation 149 124 305 330 70% 67% 73%
add_ocr_typo 280 117 217 380 70% 44% 76%
add_punctuation 0 0 4 4 70% 100% 100%
add_typo 61 51 426 430 70% 87% 89%
lowercase 53 50 427 430 70% 89% 90%
titlecase 169 83 337 423 70% 67% 84%
uppercase 417 106 89 400 70% 18% 79%
weighted average 1129 531 1805 2397 70% 61.52% 81.86%

Predicted Entities

VitalTest, Test, Measurements, TestResult

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How to use

document_assembler = DocumentAssembler()\
    .setInputCol("text")\
    .setOutputCol("document")

sentence_detector = SentenceDetectorDLModel.pretrained("sentence_detector_dl_healthcare", "en", "clinical/models")\
    .setInputCols(["document"])\
    .setOutputCol("sentence")

tokenizer = Tokenizer() \
    .setInputCols(["sentence"]) \
    .setOutputCol("token")

word_embeddings = WordEmbeddingsModel().pretrained("embeddings_clinical", "en", "clinical/models")\
    .setInputCols(["sentence", "token"]) \
    .setOutputCol("embeddings")                

ner = MedicalNerModel.pretrained("ner_vop_test_langtest", "en", "clinical/models") \
    .setInputCols(["sentence", "token", "embeddings"]) \
    .setOutputCol("ner")

ner_converter = NerConverterInternal() \
    .setInputCols(["sentence", "token", "ner"]) \
    .setOutputCol("ner_chunk")

pipeline = Pipeline(stages=[document_assembler,
                            sentence_detector,
                            tokenizer,
                            word_embeddings,
                            ner,
                            ner_converter])

data = spark.createDataFrame([["I went to the endocrinology department to get my thyroid levels checked. They ordered a blood test and found out that I have hypothyroidism, so now I'm on medication to manage it."]]).toDF("text")

result = pipeline.fit(data).transform(data)
val document_assembler = new DocumentAssembler()
    .setInputCol("text")
    .setOutputCol("document")
    
val sentence_detector = SentenceDetectorDLModel.pretrained("sentence_detector_dl_healthcare", "en", "clinical/models")
    .setInputCols("document")
    .setOutputCol("sentence")
    
val tokenizer = new Tokenizer()
    .setInputCols("sentence")
    .setOutputCol("token")
    
val word_embeddings = WordEmbeddingsModel().pretrained("embeddings_clinical", "en", "clinical/models")
    .setInputCols(Array("sentence", "token"))
    .setOutputCol("embeddings")                
    
val ner = MedicalNerModel.pretrained("ner_vop_test_langtest", "en", "clinical/models")
    .setInputCols(Array("sentence", "token", "embeddings"))
    .setOutputCol("ner")
    
val ner_converter = new NerConverterInternal()
    .setInputCols(Array("sentence", "token", "ner"))
    .setOutputCol("ner_chunk")

        
val pipeline = new Pipeline().setStages(Array(document_assembler,
                            sentence_detector,
                            tokenizer,
                            word_embeddings,
                            ner,
                            ner_converter))    

val data = Seq("I went to the endocrinology department to get my thyroid levels checked. They ordered a blood test and found out that I have hypothyroidism, so now I'm on medication to manage it.").toDS.toDF("text")

val result = pipeline.fit(data).transform(data)

Results

+--------------+---------+
|chunk         |ner_label|
+--------------+---------+
|thyroid levels|Test     |
|blood test    |Test     |
+--------------+---------+

Model Information

Model Name: ner_vop_test_langtest
Compatibility: Healthcare NLP 5.1.0+
License: Licensed
Edition: Official
Input Labels: [sentence, token, embeddings]
Output Labels: [ner]
Language: en
Size: 14.5 MB

References

In-house annotated health-related text in colloquial language.

Sample text from the training dataset

Hello,I’m 20 year old girl. I’m diagnosed with hyperthyroid 1 month ago. I was feeling weak, light headed,poor digestion, panic attacks, depression, left chest pain, increased heart rate, rapidly weight loss, from 4 months. Because of this, I stayed in the hospital and just discharged from hospital. I had many other blood tests, brain mri, ultrasound scan, endoscopy because of some dumb doctors bcs they were not able to diagnose actual problem. Finally I got an appointment with a homeopathy doctor finally he find that i was suffering from hyperthyroid and my TSH was 0.15 T3 and T4 is normal . Also i have b12 deficiency and vitamin D deficiency so I’m taking weekly supplement of vitamin D and 1000 mcg b12 daily. I’m taking homeopathy medicine for 40 days and took 2nd test after 30 days. My TSH is 0.5 now. I feel a little bit relief from weakness and depression but I’m facing with 2 new problem from last week that is breathtaking problem and very rapid heartrate. I just want to know if i should start allopathy medicine or homeopathy is okay? Bcs i heard that thyroid take time to start recover. So please let me know if both of medicines take same time. Because some of my friends advising me to start allopathy and never take a chance as i can develop some serious problems.Sorry for my poor english😐Thank you.

Benchmarking

label         precision  recall  f1-score  support 
Measurements  0.74       0.74    0.74      81      
Test          0.86       0.85    0.85      607     
TestResult    0.76       0.81    0.78      343     
VitalTest     0.92       0.97    0.95      89      
micro-avg     0.82       0.84    0.83      1120    
macro-avg     0.82       0.84    0.83      1120    
weighted-avg  0.82       0.84    0.83      1120