diff --git a/src/mappings/aio-to-cso.sssom.tsv b/src/mappings/aio-to-cso.sssom.tsv
index 8040845..a90bd75 100644
--- a/src/mappings/aio-to-cso.sssom.tsv
+++ b/src/mappings/aio-to-cso.sssom.tsv
@@ -18,7 +18,6 @@ cso:binary_classification	binary classification	skos:closeMatch	https://w3id.org
 cso:cluster_analysis	cluster analysis	skos:closeMatch	https://w3id.org/aio/Clustering	Clustering	semapv:LexicalMatching	oaklib	0.5	rdfs:label	oio:hasExactSynonym	cluster analysis
 cso:clustering	clustering	skos:closeMatch	https://w3id.org/aio/Clustering	Clustering	semapv:LexicalMatching	oaklib	0.5	rdfs:label	rdfs:label	clustering
 cso:cnn	cnn	skos:closeMatch	https://w3id.org/aio/DeepConvolutionalNetwork	Deep Convolutional Network	semapv:LexicalMatching	oaklib	0.5	rdfs:label	oio:hasExactSynonym	cnn
-cso:computational_efficiency	computational efficiency	skos:closeMatch	https://w3id.org/aio/ModelEfficiency	Model Efficiency	semapv:LexicalMatching	oaklib	0.5	rdfs:label	oio:hasExactSynonym	computational efficiency
 cso:concept_drift	concept drift	skos:closeMatch	https://w3id.org/aio/ConceptDriftBias	Concept Drift Bias	semapv:LexicalMatching	oaklib	0.5	rdfs:label	oio:hasExactSynonym	concept drift
 cso:data_augmentation	data augmentation	skos:closeMatch	https://w3id.org/aio/DataAugmentation	Data Augmentation	semapv:LexicalMatching	oaklib	0.5	rdfs:label	rdfs:label	data augmentation
 cso:data_cleaning	data cleaning	skos:closeMatch	https://w3id.org/aio/Cleaning	Cleaning	semapv:LexicalMatching	oaklib	0.5	rdfs:label	oio:hasRelatedSynonym	data cleaning
@@ -64,4 +63,4 @@ cso:som	som	skos:closeMatch	https://w3id.org/aio/KohonenNetwork	Kohonen Network
 cso:support_vector_machine	support vector machine	skos:closeMatch	https://w3id.org/aio/SupportVectorMachine	Support Vector Machine	semapv:LexicalMatching	oaklib	0.5	rdfs:label	rdfs:label	support vector machine
 cso:svm	svm	skos:closeMatch	https://w3id.org/aio/SupportVectorMachine	Support Vector Machine	semapv:LexicalMatching	oaklib	0.5	rdfs:label	oio:hasExactSynonym	svm
 cso:syntactic_information	syntactic information	skos:closeMatch	https://w3id.org/aio/FeatureExtraction	Feature Extraction	semapv:LexicalMatching	oaklib	0.5	rdfs:label	oio:hasRelatedSynonym	syntactic information
-cso:unsupervised_learning	unsupervised learning	skos:closeMatch	https://w3id.org/aio/UnsupervisedLearning	Unsupervised Learning	semapv:LexicalMatching	oaklib	0.5	rdfs:label	rdfs:label	unsupervised learning
\ No newline at end of file
+cso:unsupervised_learning	unsupervised learning	skos:closeMatch	https://w3id.org/aio/UnsupervisedLearning	Unsupervised Learning	semapv:LexicalMatching	oaklib	0.5	rdfs:label	rdfs:label	unsupervised learning