Abstract: A client sends a request for access to a webpage and receives a cookie and code to obtain data about the client in response to the request. The cookie may be cryptographically secured and contain first data about the client. The client subsequently sends a second request with the cookie to access the same webpage. Any additional information about the client, received in the second request, is then compared with the first data about the client obtained from the cookie to determine whether anomalous activity exists in connection with the client. That is, data about the client is compared to previous client activity history to determine whether there were any anomalous activity and the result of the comparison indicates whether the client is trustworthy.

Abstract: Tag merging enables a hosting entity such as a website to determine one or more tags that are logically-related to a particular tag and to present these tags to users to enable the users to vote whether to merge a logically-related tag with the particular tag. The hosting entity may determine these logically-related tags in multiple ways. For instance, the hosting entity may analyze keyword-to-keyword similarity data, item-overlap data, or may employ stemming logic. When the entity presents these tags to a user, the user may vote to merge the particular tag with one or more of the presented logically-related tags. When merged, items associated with the selected logically-related tag may become associated with the particular tag, or vice versa. Additionally, the selected tag may be removed from the items previously associated with the selected tag, or vice versa.

Abstract: Tag suggestions enable a hosting entity such as a website to determine one or more tags to suggest to a user for association with a particular item within an electronic catalog. After this determination, the hosting entity may suggest the determined tags to the user. To determine these tags, the hosting entity may employ techniques to determine items related to the particular item. The hosting entity then suggests some or all of the tags associated with the related items. Additionally or alternatively, the hosting entity may determine certain metadata associated with the particular item. The entity then may suggest this metadata, or some related phrase or tag, to the user for association with the particular item. However the tag suggestions are determined, the hosting entity may rank the tag suggestions to determine which tags to present to the user or to determine an order in which to present the tags.

Abstract: Tag suggestions enable a hosting entity such as a website to determine one or more tags to suggest to a user for association with a particular item within an electronic catalog. After this determination, the hosting entity may suggest the determined tags to the user. To determine these tags, the hosting entity may employ techniques to determine items related to the particular item. The hosting entity then suggests some or all of the tags associated with the related items. Additionally or alternatively, the hosting entity may determine certain metadata associated with the particular item. The entity then may suggest this metadata, or some related phrase or tag, to the user for association with the particular item. However the tag suggestions are determined, the hosting entity may rank the tag suggestions to determine which tags to present to the user or to determine an order in which to present the tags.