- Prakash is the creator of "Vipul's Razor", one of the first real-time, collaborative filtering systems to operate at Internet scale. He co-founded Cloudmark, that now filters email and mobile messaging spam for billions of users worldwide. He later founded Topsy Labs, the world's largest index of social media, which was acquired by Apple in December 2013. Post acquisition, Vipul is leading Apple's search efforts.
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