Waber went on to combine the data from the social sensing ID badges with other data sources -- e-mail and instant messaging patterns, phone logs, and meeting information and selected data features that related to job performance and satisfaction, and how people communicate and collaborate.

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Because the original deployments of IDS were just passive data collectors there was no impact on network performance from adding new signatures so the data base grew and grew and the logs IDS generated grew and grew to the point where even a mid-size organization would receive millions of alerts a day.

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