公开(公告)号：US20190147188A1

公开(公告)日：2019-05-16

申请号：US15815593

申请日：2017-11-16

Applicant: Microsoft Technology Licensing, LLC

Inventor： Josh D. BENALOH ,  Harsha P. NORI ,  Janardhan Dattatreya KULKARNI ,  Joshua Stanley ALLEN ,  Jacob Rubin LORCH ,  Melissa Erin CHASE ,  Olga OHRIMENKO ,  Sergey YEKHANIN ,  Srinath T.V. SETTY ,  Bolin DING

IPC: G06F21/62 ,  G06F21/60 ,  H04L9/32

Abstract: This document relates to hardware protection of differential privacy techniques. One example obtains multiple instances of encrypted telemetry data within a secure enclave and processes the encrypted telemetry data to obtain multiple instances of unencrypted telemetry data. The example also processes, within the secure enclave, the multiple instances of unencrypted telemetry data to obtain a perturbed aggregate. The example also releases the perturbed aggregate from the secure enclave.

公开(公告)号：US20180189164A1

公开(公告)日：2018-07-05

申请号：US15665261

申请日：2017-07-31

Applicant: Microsoft Technology Licensing, LLC

Inventor： Janardhan Dattatreya KULKARNI ,  Bolin DING ,  Sergey YEKHANIN ,  Joshua ALLEN ,  Alexander Norton MEADE

IPC: G06F11/34 ,  G06F11/30

Abstract: A facility for reporting on original values on behalf of each of a plurality of users—each falling within a domain partitioned into a plurality of segments of uniform size—is provided. For each of the plurality of users, the facility (a) randomly selects an upward-rounding window size that is smaller than the segment size; (b) for each source value in a domain, randomly determines a mapping of each segment of the domain to a segment identifier value; (c) determines an original value for the user; (d) adds the upward-rounding window size to the user's original value to obtain a window-augmented original value; (e) identifies a segment containing the window-augmented original value; (f) identifies a segment identifier value mapped-to from the identified segment using the determined mapping; and (g) transmits a reporting communication on the user's behalf reporting a value based on the identified segment identifier value.

公开(公告)号：US20180096006A1

公开(公告)日：2018-04-05

申请号：US15635399

申请日：2017-06-28

Applicant: Microsoft Technology Licensing, LLC

Inventor： Sudipto DAS ,  Bolin DING ,  Vivek R. NARASAYYA ,  Manoj A. SYAMALA ,  Jingjing WANG ,  Gaoxiang XU

IPC: G06F17/30

CPC classification number: G06F16/217 ,  G06F16/221 ,  G06F16/2282 ,  G06F16/245 ,  G06F16/284

Abstract: Provided are methods and systems for generating physical database design tuning recommendations. Given a workload, the system analyzes the workload to identify and recommend a set of rowstore and columnstore indexes optimal for the performance of the workload. The system is designed to estimate the size of the columnstore index (at the granularity of each column) without actually building the index, estimate the improvement in query performance that each columnstore index would result in when built, and automatically derive the workload used for the physical design tuning task by analyzing stored query execution history data. This automatic workload derivation is orthogonal to columnstores and can be used even when columnstore indexes are not being used.