Abstract: In various embodiments, when a search query for certain products in an electronic catalog is received, a group of related products that are responsive to the search query may be identified. The product variants may be defined by one or more attributes. Each attribute may have one or more attribute values. The product variants may be first classified according to an attribute. One or more representative classes may be selected from the classes, for example, based on sales data (or other metric) and/or meaningful differentiation between the classes. Then a representative product variant from each class may be selected and returned as search results in response to the search query. In some embodiments, selection of the representative product variant from each class may be based on one or more factors, such as sales data, the particular customer's purchase or browsing history, cost, the search query, availability, among others.

Abstract: Disclosed are various embodiments for customizing an item search and browsing experience based on a delivery speed preference. A request is received from a client device for a detail page regarding a particular item offered for order. A first delivery speed option associated with the client device is identified. It is determined that the particular item cannot be delivered to a particular address associated with the client device via the first delivery speed option. A user interface is generated that indicates a second delivery speed option via which the particular item is available for delivery to the particular address. Data encoding the user interface is sent to the client device for rendering on a display.

Abstract: Disclosed are various embodiments for customizing an item search and browsing experience based on a delivery speed preference. Multiple delivery speed options are generated for a client device, and a listing of the delivery speed options are sent to the client device. A user selection of a particular delivery speed option is then received from the client device. An item search criterion is received from the client device. A listing of items selected from an electronic item database is generated based at least in part on the item search criterion and item availability via the particular delivery speed option. Data encoding the listing of items is sent to the client device for rendering on a display.

Abstract: Embodiments described herein provide images representing a set of search results based on diversity between results of the search query. Images associated with a set of visually diverse items can be provided to provide a sample of items matching the search query across multiple types of categories. For example, search results can be grouped into types of categories and images from each of the types of categories can be grouped into subsets of visually related images (across one or more different visual attributes). A set of diverse representative images can be selected by taking at least one image from each of the groups of visually related images. The set of representative and diverse images can be displayed to provide an interesting, visually diverse, and aesthetically pleasing set of images to a user.

Abstract: Disclosed are various embodiments for customizing an item search and browsing experience based on a delivery speed preference. Multiple delivery speed options are generated for a client device, and a listing of the delivery speed options are sent to the client device. A user selection of a particular delivery speed option is then received from the client device. An item search criterion is received from the client device. A listing of items selected from an electronic item database is generated based at least in part on the item search criterion and item availability via the particular delivery speed option. Data encoding the listing of items is sent to the client device for rendering on a display.