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PPDM

Service Overview

The service that enables secure utilization of personal information through a technology that analyzes data while it is encrypted. This service utilizes a technology called PPDM (Privacy Preserving Data Mining).

Service Features

Examples

chat tool

Target company's issues

They want to display ads targeted to the user's interests, but they can't get the content of the conversation.

Implementation of pluszero

The content of the conversation is kept encrypted, and the relevance of the ad and message is calculated to create the optimal ad auction logic.

ability test

Target company's issues

They want to conduct aptitude tests using sensitive information, but the hurdle of disclosure is too high for users.

Implementation of pluszero

The score is calculated by applying the logic of a test theory called IRT while the answer pattern is encrypted.

questionnaire system

Target company's issues

They want to conduct a statistical study, but do not want to collect individual data.

Implementation of pluszero

We built a system to perform aggregation and statistical processing while keeping the response patterns encrypted.

Personal Genome Analysis

Target company's issues

They want to provide services based on personal genome information, but do not want to retain the genome information itself.

Implementation of pluszero

Constructed a system that can continuously provide customers with information on disease risk, etc. by keeping genome information encrypted on a server.