Detecting new businesses with unrecognized query terms

1. A method for identifying a new business listing, comprising: acquiring a log of local search queries submitted by users; identifying, from the log of local search queries, a term that does not correspond to a name of a business listing; determining a number of recent search queries containing the term and a number of historical search queries containing the term; determining a threshold rate based on the number of historical search queries; determining that a rate based on the number of recent search queries exceeds the threshold rate based on the number of historical search queries; and identifying the term as a name of a new business listing; and searching reviews of new businesses for the term in response to identifying the term as a name of a new business; determining that the name appears in the reviews; and identifying the term as being confirmed as a new business.

2. The method of claim 1 , wherein the term is identified from a log of local search queries in a particular geographic area, and the number of recent search queries and the number of historical search queries are obtained from the particular geographic area.

3. The method of claim 1 , wherein identifying, from the log of local search queries, a term that does not correspond to a name of a business listing comprises: filtering from a larger set of search queries those search queries for which a user selected a proposed spelling corrected query.

4. The method of claim 1 , wherein identifying, from the log of local search queries, a term that does not correspond to a name of a business listing comprises: clustering the search queries according to a geographic location associated with each search query; and identifying, from one of the clusters, a term that does not correspond to a name of a business listing.

5. The method of claim 1 , wherein identifying the term as a name of a new business listing comprises: adding the term to a work-list of likely new businesses for human review; and receiving a confirmation following review that the term corresponds to a new business.

6. The method of claim 5 , wherein adding the term to a work-list of likely new businesses for human review comprises: associating with the term a geographic area selected based on the local search queries containing the term.

7. The method of claim 1 , wherein the threshold rate is dynamically selected based on a variability of a historical rate such that higher variability causes the threshold rate to increase.

8. The method of claim 1 , wherein identifying the term as a name of a new business listing comprises: associating with the name a geographic area defined by geographic locations indicated by the local search queries.

9. The method of claim 8 , wherein the geographic locations are indicated by a geocoding an IP address from which the queries were received, a map extent displayed in a viewport of a interactive map with which the queries were received, or other terms appearing in the queries corresponding to geographic locations.

10. The method of claim 1 , wherein the historical rate is based on non-local queries associated with a larger geographic area than the log of local search queries.

11. The method of claim 1 , comprising assigning a priority to the term according to a difference between the rate based on the number of recent search queries and the threshold rate.

12. The method of claim 1 , wherein the threshold rate is selected determined based on a variance of a rate of historical search queries with the term and a measure of central tendency of the rate of historical search queries with the term.

13. The method of claim 1 , wherein the threshold rate is more than two standard deviations greater than the mean rate of historical search queries with the term.

14. The method of claim 1 , wherein determining that a rate based on the number of recent search queries exceeds a threshold rate based on the number of historical search queries comprises: normalizing a recent rate and a historical rate according to a total number of queries received during respective corresponding time periods.

15. The method of claim 1 , wherein determining that a rate based on the number of recent search queries exceeds a threshold rate based on the number of historical search queries comprises: calculating multiple recent rates each corresponding to queries of less than a different age; and determining whether any of the recent rates exceeds a corresponding threshold historical rate, wherein the threshold historical rates for recent rates of a longer sampling period is lower than the threshold historical rates for recent rates of a shorter sampling period.

16. The method of claim 1 , comprising: adding the term to the business listing; and displaying sending advertisements for display along with information from the business listing.

17. A tangible, non-transitory, machine-readable medium storing instructions that when executed by a data processing apparatus cause the data processing apparatus to perform operations comprising: acquiring a log of local search queries submitted by users; identifying, from the log of local search queries, a term that does not correspond to a name of a business listing; determining a number of recent search queries containing the term and a number of historical search queries containing the term; determining a threshold rate based on the number of historical search queries; determining that a rate based on the number of recent search queries exceeds the threshold rate based on the number of historical search queries; and identifying the term as a name of a new business listing; and sending the term to a mobile device for confirmation that the new business is extant by a user; receiving from the mobile device the confirmation; and identifying the term as being confirmed as a new business.

18. A system, comprising: one or more processors; and memory storing instructions that when executed by the processors cause the processors to effectuate operations comprising: acquiring a log of local search queries submitted by users; identifying, from the log of local search queries, a term that does not correspond to a name of a business listing; determining a number of recent search queries containing the term and a number of historical search queries containing the term; determining a threshold rate based on the number of historical search queries; determining that a rate based on the number of recent search queries exceeds the threshold rate based on the number of historical search queries, including: calculating multiple recent rates each corresponding to queries of less than a different age; and determining whether any of the recent rates exceeds a corresponding threshold historical rate, wherein the threshold historical rates for recent rates of a longer sampling period is lower than the threshold historical rates for recent rates of a shorter sampling period; and identifying the term as a name of a new business listing.