26. A non-transitory computer-readable medium having encoded thereon instructions, wherein the instructions, when executed by a computing apparatus, cause the computing apparatus to: generate a first user interface for receiving, from a user, item information regarding at least one item of interest to the user, wherein the item of interest is an item offered for sale using a network-based service; and automatically determine at least one category recommendation from vector representations of the item information and at least one description for an item category maintained by the network-based service, wherein the at least one description is a textual description of the first item category, wherein the item category is associated with a plurality of items and is determined to be a category recommendation if a deviation of an angle between the vector representations of the item information and the at least one description is less than a threshold value, wherein the item information is represented as an item vector according to a vector space model and a category vector according to the vector space model comprises a representation of at least a portion of the at least one description.
26. A non-transitory computer-readable medium having encoded thereon instructions, wherein the instructions, when executed by a computing apparatus, cause the computing apparatus to: generate a first user interface for receiving, from a user, item information regarding at least one item of interest to the user, wherein the item of interest is an item offered for sale using a network-based service; and automatically determine at least one category recommendation from vector representations of the item information and at least one description for an item category maintained by the network-based service, wherein the at least one description is a textual description of the first item category, wherein the item category is associated with a plurality of items and is determined to be a category recommendation if a deviation of an angle between the vector representations of the item information and the at least one description is less than a threshold value, wherein the item information is represented as an item vector according to a vector space model and a category vector according to the vector space model comprises a representation of at least a portion of the at least one description. 29. The non-transitory computer-readable medium of claim 26 , wherein a value of a term in the item vector is determined based on a frequency with which the term occurs in the item information and a term frequency-inverse document frequency of the term.