Lenovo (singapore) Pte. Ltd.

Hiroyuki Sumi

Noritoshi Yoshiyama

Anatassios Markas

Ojuro Yokoyama

Electronic communications and a keyword are provided to a machine learning algorithm. Similarity measures are received from the machine learning algorithm. The similarity measures indicate a similarity between the communications and the keyword. The communications are clustered as a function of the similarity measures. False positive communications are removed from a first cluster as a function of a sum of distances between the false positive communication and communications in the first cluster that include the keyword and a sum of distances between the false positive communication and communications in the first cluster that do not include the keyword. False negatives are added to the first cluster as a function of a sum of distances between the false negative and communications in the first cluster that include the keyword and the sum of distances between the false negative and communications in the cluster that do not include the keyword.

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Hadano, Japan

Hiroyuki Sumi