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The provision of awareness is a well-known method for fostering students' selfreflection, a metacognitive skill often related to academic success and considered one of the key skills of the 21st century. Although the information discovered using learning analytics techniques can be useful in fostering self-reflection, its delivery to students should be done without distracting them from their learning goals. This paper presents a visualization technique based on similarity measures and theirdoi:10.3217/jucs-021-01-0134 fatcat:l3kdzqzsbbf7xc4op5luj53p4m