Microsoft Technology Licensing, LLC

Yanbiao Zhao

Lei Zhao

Lijiang Fang

Yi Li

Rodger N Kline

Ashish Consul

Maxim Mazeev

Zhanliang Chen

Ramesh Nagarajan

Pin Lu

Jianyong Xiao

Xun Kang

Multiple search indexes can be served from a common set of resources. Instead of requiring a processor to be dedicated to serving a single search index, a processor can provide responsive documents for search queries that are based on different ranking algorithms and/or different sets of documents.

Serving multiple search indexes

Optimized storage and query of multi-value properties is enabled by generating a base table for single value properties associated with a user-defined schema and a number of row-based tables for each different type of multi-value properties. By combining multi-value properties into row-based tables or even into compatible type tables, a number of tables to be created for a database system such as SQL system is reduced at the same time optimizing create/read/update/delete operations.

Multi-value property storage and query support

A classifier is used to predict relevant results with arbitrary filtering conditions specified by the user. The classifier model is stored as a database table and joined with a metadata properties table instead of calculating the query result probability using the full classifier model. A user-specified query based filter is applied to the joined tables to obtain the list of documents satisfying the filter. The probability is then computed using the sub-model.

Dynamic metadata filtering for classifier prediction

To provide data from a database in response to an application query, the database is queried an initial time to provide a first set of data. For example, a 'fast first page' may be requested, by requesting that all data which might appear on a first page to be displayed is obtained from the database first. After this, one or more subsequent asynchronous queries obtain the remaining information responsive to the query. Or, certain columns from the database ('spine columns') may be requested in the initial query of the database, and the rest of the data requested subsequently. Thus, information needed to make an initial presentation to a user can be obtained first, and other information filled in subsequently.

Fast rich application view initiation

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Yanbiao Zhao