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@@ -11,8 +11,10 @@ size_categories:
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  - 1M<n<10M
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  ---
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- Using the UMLS and the SNOMED-CT ontology we identified positive term pairs by
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  * making random pairs of descriptions of the same medical concept identifier
 
 
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  * using the known positive relationships between CUIs
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  We expand this with negative term pairs by random sampling, followed by selecting the top-N most dissimilar terms with (sim<0.25)
 
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  - 1M<n<10M
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  ---
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+ Using the UMLS and the SNOMED-CT ontology we identified *hard* positive term pairs by
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  * making random pairs of descriptions of the same medical concept identifier
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+
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+ and *soft* positive term pairs by
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  * using the known positive relationships between CUIs
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  We expand this with negative term pairs by random sampling, followed by selecting the top-N most dissimilar terms with (sim<0.25)