Abstract: Disclosed are various embodiments for a rule builder for data processing. A proper subset of a data set of strings is selected from one or more columns into which the data set is organized. A selection pattern is identified based at least in part on substring selections and a set of pattern rules. The substring selections are received by way of a first user interface that presents strings from the proper subset. The selection pattern is separately represented in the individual substring selections. A second user interface is generated to present the selection pattern.

Abstract: Disclosed are various embodiments for a rule builder for data processing. A proper subset of a data set of strings is selected from one or more columns into which the data set is organized. A selection pattern is identified based at least in part on substring selections and a set of pattern rules. The substring selections are received by way of a first user interface that presents strings from the proper subset. The selection pattern is separately represented in the individual substring selections. A second user interface is generated to present the selection pattern.

Abstract: Disclosed are various embodiments of a method and system for providing a simplified listing process for sellers. A computing device obtains contact information for a seller and a representation of an item that may be purchased through an electronic marketplace. This information is obtained without requiring the seller to register with the electronic marketplace. Using the representation of the item, a seller listing for the item in the electronic marketplace is generated. The seller is notified through the contact information when a buyer purchases the item from the seller through the generated seller listing.

Abstract: Disclosed are various embodiments for a rule builder for data processing. A proper subset of a set of strings is selected. A first user interface is generated that is configured to present the proper subset of the set of strings. The first user interface is further configured to obtain multiple substring selections corresponding to each one of the proper subset of the set of strings. One or more selection patterns are identified based at least in part on the corresponding substring selections. A second user interface is generated that is configured to present the selection patterns for user verification.