Abstract: Methods, systems, and apparatus for processing item reviews are described. An item review is obtained. Content of the item review and a reviewer of the item review are analyzed. A review weighting based on the analysis of the content of the item review and the reviewer of the item is determined.

Abstract: Users of a web site may belong to different user groups, and receive content that applies to those user groups. Such content may be stored within a cache by a server system. In some cases, content may be stored in the cache based on a value that corresponds to all user groups to which a user belongs. Such an approach may be problematic in some instances, and result in increased cache misses. In an alternate approach, content is cached based on only one user group to which a user belongs, but may be cached under multiple keys in the event that a user belongs to numerous different user groups. By caching the content in multiple entries based on simpler keys, cache performance may be improved.

Abstract: Systems and methods for identification of one or more versions of an asset that match a search are disclosed herein. A search request that includes a search string is received from a client device. The search request is used to identify an asset maintained by a server that matches the search string included in the search request. The asset may have a plurality of versions, and the search string is compared with the contents of the plurality of versions of the asset. One or more versions of the asset that exceed an overlapping threshold with the search string are determined based on the comparison. A search result is generated based on the determined one or more versions of the asset. Presentation of the generated search result on the client device is caused.

Abstract: Methods, systems, and apparatus for segmenting consumers into groups are described. Tracking information on a selected consumer and a rule comprising criteria for each of one or more groups of consumers may be obtained. The selected consumer may be assigned to each of the one or more groups based on the tracking information satisfying the corresponding rule criteria.