Microsoft Technology Licensing, LLC

Amazon Technologies, Inc.

Oracle International Corporation

Khai Tran

Emmett Walter Lalish

Maneesh Varshney

Bryan Williams

Sam Idicula

David Craig Yanacek

Khawaja Salman Shams

Kristofer Noel Iverson

Sabina Petride

Shrikanth Shankar

Benjamin Aldouby Schwartz

Rajkumar Sen

Usman Ahmed Shami

Ming Chuang

Osman Surkatty

Walaa Eldin M Moustafa

Oleg Mitrofanov

Adwait N Tumbde

Carl W Steinbach

Harsh Shah

Vasanth Rajamani

Suja Viswesan

Craig Wilfred Pearce

Josh Phelan Dukes

Ratandeep S Ratti

A unified metrics computation platform decouples user-facing query languages from backend execution engines with the help of an intermediate platform-agnostic language, based on relational algebra procedural query language. The user needs to only specify the computation logic at a single place. By leveraging the intermediate language representation, the unified metrics computation platform can execute the same computation logic on multiple execution engines. The unified metrics computation platform unifies batch, nearline and interactive computations by automatically converting existing user defined batch logic into nearline logic. The user is presented with a unified view of the batch and nearline computation results.

Unified metrics computation platform

Techniques are described for 'fuzz testing' serverless software applications (for example, software applications implemented by a serverless compute service provided by a service provider network). Fuzz testing is an automated testing technique involving a fuzzer client application (or simply 'fuzzer') providing invalid, unexpected, or random data as inputs to a software application that is the target of the testing to discover software bugs and other runtime issues during execution of the software. To fuzz test a serverless application, a fuzzer continuously sends inputs to the serverless application and, when a runtime error is detected (for example, by monitoring log data generated by the serverless application), a copy of the serverless application can be invoked with the suspected error-inducing input to verify that the input indeed causes the error without interrupting the fuzzer's testing of the original serverless application.

Systems and methods for fuzz testing serverless software applications

This disclosure describes techniques implemented partly by a service provider to monitor a cloud-based service by generating and placing canary records in storage locations along with real records to identify improper access events of the records or other data. The service provider may detect an access event where records in a storage location were accessed, and determine whether a canary record was accessed. If a canary record was accessed, the service provider may determine that the access event was potentially performed by a malicious entity because authorized users generally may not have reason to access a canary record when utilizing their cloud-based service. The service provider may generate canary records that are difficult to identify by a malicious entity, and may position canary records in the storage locations to help ensure that the canary records are accessed by a malicious entity during an improper access event.

Utilizing canary data to identify improper data access

Systems, devices, and methods are described herein for geometrically simplifying three-dimensional (3D) video data. In one aspect, a method may include obtaining 3D data, with the 3D data including a plurality of portions associated with a default resolution priority. A higher resolution priority may be associated with one or more portions of the 3D data. Next, portions of the 3D data may be sorted according to resolution priorities associated with each portion, and geometric simplification may be performed on the sorted portions of the 3D data, beginning with portions associated with a least resolution priority and continuing with portions associated with successively higher resolution priorities. The simplified 3D data may be processed, for example, for rendering on a computing device or transmission to another device for display or generation, such as a 3D printing device for generating a 3D object.

Adaptive decimation using 3D video features

The disclosed embodiments provide a system for processing data. During operation, the system obtains a user-defined function (UDF) that is defined using a standard UDF interface for accessing multiple platforms. Next, the system converts data in a platform into a standard form that is supported by the standard UDF interface using a platform-specific wrapper for the UDF and a platform-specific implementation of the standard UDF interface. The system then generates output data in the standard form by applying one or more operations to the data in the standard form. Finally, the system converts the output data into a platform-specific form that is supported by the platform and returns the output data in the platform-specific form.

Platform-independent user-defined functions for data access

Techniques are described to evaluate an operation from an execution plan of a query to offload the operation to another database management system for less costly execution. In an embodiment, the execution plan is determined based on characteristics of the database management system that received the query for execution. One or more operations in the execution plan are then evaluated for offloading to another heterogeneous database management system. In a related embodiment, the offloading cost for each operation may also include communication cost between the database management systems. The operations that are estimated to be less costly to execute on the other database management system are then identified for offloading to the other database management system. In an alternative embodiment, the database management system generates permutations of execution plans for the same query, and similarly evaluates each permutation of the execution plans for offloading its one or more operations. Based on the total cost of each permutation, which may include offloading cost for one or more operations to another database management system, the least costly plan is selected for the query execution.

Multi-system query execution plan

Described herein is a system and method for detecting and compensating for an anomaly in three-dimensional object fabrication. A wall thickness computation component computes a wall thickness of a three-dimensional object to be fabricated. An edge map generation component generates an edge map for one or more portions of the three-dimensional object to be fabricated satisfying one or more wall thickness criteria. The wall thickness criteria includes, for example, a computed wall thickness less than an extrusion width of a fabrication apparatus, a computed wall thickness greater than an extrusion width and less than twice the extrusion width and/or a computed wall thickness not an integer multiple of the extrusion width. A tool path generation component generates a tool path based on the generated edge map.

Detecting and compensating for an anomaly in three-dimensional object fabrication

Systems and methods are disclosed herein for performing automated testing of software. Information characterizing a set of application programming interface (API) calls is associated with the software. Dependencies between the API calls are determined using the information and a representation is generated using the dependencies. The dependencies of the representation are verified by providing API requests to the API calls. The verified representation is provided for automated testing of an API and the associated API calls.

Representation-based automated software testing

One or more computing nodes located in a first region may maintain a first collection of data items. A second set of one or more computing nodes in a second region may maintain a collection of data items that is at least a partial replica of the first collection. Notifications of changes to the first collection may be transmitted, via a broadcast communications channel, to a replication module, which may be included in a client application. The replication module may transmit requests to update the second collection of data based on changes to the first collection. Conflicts may be resolved through a last-write wins policy.

Cross-region replication architecture

Described herein is a system and method system for fabricating a three-dimensional object using a plurality of extruders. Information including two-dimensional segments of a layer of a three-dimensional object to be fabricated using the plurality of extruders is received. Closed contour, two-dimensional polygons are computed based on the two-dimensional segments. Tool path(s) are generated based on the computed closed contour two-dimensional polygons. The generated tool path(s) are provided to a fabrication apparatus.

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San Mateo, CA, United States of America

Khai Tran