Nec Laboratories America, Inc.

Nec Corporation

University System of Maryland

Jagan Sankaranarayanan

Vahit Hakan Hacigumus

Junichi Tatemura

Jeffrey LeFevre

Neoklis Polyzotis

Mohamed Sarwat

Haopeng Zhang

Hanan Samet

A system includes first and second data stores, each store having a set of materialized views of the base data and the views comprise a multistore physical design; an execution layer coupled to the data stores; a query optimizer coupled to the execution layer; and a tuner coupled to the query optimizer and the execution layer, wherein the tuner determines a placement of the materialized views across the stores to improve workload performance upon considering each store's view storage budget and a transfer budget when moving views across the stores.

MISO (multistore-online-tuning) system

Systems and methods are disclosed for managing a multi-store execution environment by applying opportunistic materialized views to improve workload performance and executing a plan on multiple database engines to increase query processing speed by leveraging unique capabilities of each engine by enabling stages of a query to execute on multiple engines, and by moving materialized views across engines.

System for multi-store analytics execution environments with storage constraints

A system for evolutionary analytics supports three dimensions (analytical workflows, the users, and the data) by rewriting workflows to be more efficient by using answers materialized as part of previous workflow execution runs in the system.

System for evolutionary analytics

Systems and methods for data sharing include generating at least one sharing plan with a cheapest cost and/or a shortest execution time for one or more sharing arrangements. Admissibility of the one or more sharing arrangements is determined such that a critical time path of the at least one sharing plan does not exceed a staleness level and a cost of the at least one sharing plan does not exceed a capacity. Sharing plans of admissible sharing arrangements are executed while maintaining the staleness level.

Generation and optimization of data sharing among multiple data sources and consumers

A system and method for data sharing are provided. Context parameters associated with a user are gathered from a plurality of applications. A mobile context of the user is determined based on the gathered context parameters. Content is presented to the user in accordance with the mobile context of the user.

System and method for gathering context parameters to determine a mobile user context

One embodiment of the invention is directed to a method including constructing a path-distance oracle that provides both an intermediate vertex of a shortest path between two vertices in a spatial network and an approximate distance between the two vertices. The constructing comprises decomposing the spatial network into a set of path-coherent pairs (PCPs) that satisfy at least one predefined property.

Path oracles for spatial networks

A platform as a service (PaaS) is provided as part of a data sharing scheme. The PaaS is configured to setup a materialized shared space in a cloud. The materialized shared space includes a set of resources invested by the PaaS to permit data sharing between a tenant application and at least one consumer application. A sharing middleware configured to provide the at least one consumer application with access to the data in the materialized shared space.

System and method for providing a platform as a service (PaaS) with a materialized shared space

A system and method are provided for data sharing. A sharing negotiation tool permits at least one consumer application to negotiate a service level agreement on a dataset which is being shared by a tenant application on a cloud. A capacity planner is configured to determine an appropriate allocation of cloud resources to ensure that the service level agreement of the at least one consumer application is satisfied.

Negotiation tool and method for cloud infrastructure data sharing

A system and method are provided for data sharing. A uniform communication framework is provided as part of a sharing service on the cloud platform to facilitate data sharing among a plurality of applications. The uniform communication framework includes an application programming interface which provides a communication gateway to permit a first application to access data of a second application stored in the data store.

Growing community of inventors

Santa Clara, CA, United States of America

Jagan Sankaranarayanan