Microsoft Technology Licensing, LLC

Gregory Scott Orzell

Patrick Reynolds

Vicent Pere Marti Guardiola

Alexander Ulrich Neubeck

Methods and systems are described which use load balancing to efficiently perform queries. Embodiments identify available nodes and divide an index into shards. Embodiments distribute the index across the nodes where each node has at least two distinct shards. Based on a target upper bound number of requests per node, and based on which shards exist at each node, embodiments identify a query routing policy which also includes accounting for node failure. Embodiments route a query based on the identified query routing policy.

Redundancy and load balancing

The embodiments disclosed herein are related to a computing system for generating a mask-augmented inverted index. The mask-augmented inverted index is structured to allow phrase query searching while minimizing the amount of computing system processing and memory resources needed to generate the mask-augmented inverted index. In one embodiment, a first token is mapped to a first listing of documents that include the first token. A first mask is included that comprises a probabilistic representation of a set of integers corresponding to one or more locations of the first token in each of the individual documents of the first listing. A second mask is included that comprises a probabilistic representation of a set of integers that indicate a positional relationship between the first token and one or more other tokens in each of the individual documents of the first listing.

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Mainz, Germany

Gregory Scott Orzell