WO2008086217A1

WO2008086217A1 - Keyword based content suggestions

Info

Publication number: WO2008086217A1
Application number: PCT/US2008/050291
Authority: WO
Inventors: Nathalie Criou; Chandramouli Mahadevan; Sridhar Venkatakrishnan
Original assignee: Google Inc.
Priority date: 2007-01-05
Filing date: 2008-01-04
Publication date: 2008-07-17
Also published as: US20130254030A1; US8463830B2; US20080168032A1; US9607317B2

Abstract

A system and related methods suggest content based on user input and another metric. In one implementation, web-sites are suggested to advertisers in response to keyword input and by factoring in how often such web-sites were selected or 'clicked on' as a result of corresponding search queries. Search logs are processed to determine how often certain query terms led to web-sites being selected. Web-sites are ranked accordingly. Keywords from advertisers are matched to the web-site rankings to present the top web-sites.

Description

KEYWORD-BASED CONTENT SUGGESTIONS

PRIOR APPLICATIONS

[0001] This application claims priority to U.S. Application Serial No. 11/620,421 filed January 5, 2007. The disclosure of the prior application is considered part of the disclosure of this application and is incorporated by reference in its entirety.

TECHNICAL FIELD

[0002] The subject matter of this document relates to advertising.

BACKGROUND

[0003] Interactive or on-line advertising provides opportunities for advertisers to target their advertisements ("ads") to a receptive audience. For example, the contents of user-inputted queries have been used by search engines to deliver relevant ads in conjunction with search results, the relevancy being a function of the query inputted by the user.

[0004] Certain tools exist to assist advertisers in targeting advertisements. For example, the web-based application, Google ADWORDS, permits an advertiser to identify certain websites that contain certain subject matter, that are listed in certain pre-defined categories, or which are similar in content to a given URL.

SUMMARY

[0005] According to one implementation, a site-suggestion method involves receiving input corresponding to at least one keyword associated with a content request (e.g., an on-line advertisement request). At least one suggested content source is indicated for the advertisement based on whether the suggested content source was previously selected in a previous query corresponding to the keyword.

[0006] In another aspect, a term is determined from the previous query and corresponding to the keyword received. A content source is indicated for the content request (e.g., the on-line advertisement) including selecting a content source associated with the term.

[0007] In still another implementation, the content sources suggested comprise web-sites. [0008] The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the invention will be apparent from the description and drawings, and from the claims.

DESCRIPTION OF DRAWINGS

[0009] FIG. 1 is a schematic of one implementation of a content suggestion system.

[0010] FIGS. 2-7 are flowcharts of various, possible methods related to suggesting a content source.

[0011] Like reference symbols in the various drawings indicate like elements.

DETAILED DESCRIPTION

[0012] FIG. 1 is a schematic of one implementation of a suggestion system for content sources. Although any number of content sources may be contemplated herein, in the exemplary implementation described, the content sources are of the form of web-sites accessible through the Internet, including the world- wide web. One function of suggestion system 101, diagrammed in FIG. 1, is to suggest appropriate web-sites for advertisers to place their ads. Suggestion system 101 factors in user behavior, such as how frequently users have selected (e.g., clicked on) web-sites, in its determination of which web-sites to suggest.

[0013] System 101 includes one or more suggestion engines 121 to perform its behavior- based suggestion routines. For example, suggestion engine 121 may include a keyword engine 123 which functions to receive one or more keywords 117 from advertisers 107, processes them, and identifies content vectors (explained below) associated with such keywords. A ranking engine 125 processes one or more lists of queries 105 which led to clicks on web-sites and extracts information from such queries to define content vectors. Rankings of content, such as web-sites, are stored in a suitable data structure. A serving engine 127 delivers the results of these processes to clients of system 101, such as advertisers 107, such results comprising, for example, suggested sites 108.

[0014] One suitable implementation for system 101 is through a world- wide-web based application utilizing one or more servers, including a server associated with advertisement management. In one implementation, suggestion system 101 uses "folksonomy," or the popularity of web-sites, in its suggestions to advertisers. One way of assessing web-site popularity, or tapping into this "folksonomy," is to analyze which queries led users to select a web-site. To make this assessment, search logs 103 are suitably processed, such as by using sawzall scripts across multiple computers, a process generally described in "Interpreting the Data: Parallel Analysis with Sawzall" [http://labs.google.com/papers/sawzall.html], the teachings of which are incorporated by reference.

[0015] One suitable approach to search log processing is now described. For each query, if the query resulted in selection of a web-site, suitable programming extracts from the log data corresponding to the domain of the web-site. The foregoing selection and its query/domain pair are counted as one selection, such as a click. The selections (e.g. clicks) for all query/domain pairs are aggregated. The aggregation results in a map from a query/domain pair to the total number of selections for that pair.

[0016] The logs are processed to determine, rank, or otherwise list the most frequent or "top" queries which led to clicks on respective sites (block 105). This permits the related determination, for each site, of the top terms associated with respective sites. Terms can be a word or phrase of any length suitable to generate, ultimately, an appropriate number of suggested web-sites to an advertiser or other user. In some implementations, single- or two- word phrases (referred to in the art as unigrams or bigrams) can be used. It is understood that system 101 can be adaptive in its processing of search logs 103, that is, varying the length of terms associated with sites as needed for the particular advertiser, content area, or any other parameter.

[0017] One suitable methodology for processing search logs includes generating the top 500 queries that led to clicks on the site by processing 10 days in each of the twelve preceding months. This reduces temporal effects on a site. Of course, other data samples and time periods can be used, as can the entire database over a period of time. One- and two-word phrases associated with sites are then determined from the top queries. The one-, two-, or 77- word terms derived from this processing create content vectors, in that the terms point to web-sites that users, as a folksonomy, have clicked on after making a query. It will be appreciated that content vectors corresponding to a query can include those matching the query identically or partially, the vector being a subset of the query; an inexact match; synonym; formative; or term having any other suitable correspondence for purposes of capturing the query with a term. Similarly, in some implementations, common words and common search terms, referred to as "stopwords," are eliminated from query phrases in processing the search logs.

[0018] Suggestion system 101 interacts with advertisers 107 and advertiser information 115. It will be appreciated that advertiser information 115 may include data corresponding to a vast number of variations in on-line advertising, including ad placement, content, form, frequency, impressions, and the like, just as there are countless types of on-line ad campaigns, as the spirit or creativity of advertisers may devise.

[0019] Advertisers 107 may provide or access information 115 or interface with suggestion system 101 through a variety of electronic devices, such as PDAs 109, laptops 111, or larger computers 113, and over various networks, such as wireless or cabled, LAN, WAN, internet, or, in this implementation, the world- wide web.

[0020] One of the interactive features of system 101 is to receive input from advertisers 107 seeking to determine on which web-sites to place their ads, and presenting suggested websites in response to such requests. To perform this function, system 101 receives one or more keywords which may be listed by advertisers (block 117), and presents suggested sites corresponding to such keywords (block 119), factoring in the rankings (block 105) determined by processing search logs 103, as discussed previously.

[0021] One exemplary process for suggesting content sources is discussed generally with reference to FIG. 2. Content sources, e.g. web-sites, are ranked, (block 201) as a function of any suitable metric related to user behavior. One such metric is the popularity of such content source, and one suitable indication of such popularity is the number of times the website was selected as a result of a query using certain terms, e.g., content vectors. A client, e.g., a potential advertiser, requests a content source (block 203), e.g. a web-site, for purpose of interacting or transacting therewith. Such interactions may include bidding on, purchasing, or otherwise considering the placement of an advertisement in connection with such web-site, and one approach to making such request is entering one or more keywords.

[0022] After receiving the content requests, suitable content sources are identified (block 205) based on both the request and the ranking of the content source described previously. As one example, one or more web-sites are suggested based on the ranking thereof by popularity of the content vector corresponding to the keywords entered. [0023] The process of ranking content sources (block 201) is further described with reference to FIG. 3. Content sources are identified (block 301), such as by access to a network, database, and the like. Information associated with the content sources is suitably processed to yield one or more content vectors (block 303), which are optionally stored (block 305). The content sources are ranked as a function of how frequently content vectors are associated with the content sources (block 307).

[0024] The process of receiving a content request (block 203) is further described with reference to FIG. 4. User input is received (block 401), such input generally associated with obtaining a desired output to guide a subsequent user action. More specifically, a user inputs data, such as one or more keywords, in any suitable manner, which data is further processed in conjunction with other data. A determination of which term(s) to associate with the user input is made (block 403), and a correlation between such term(s) and the content vectors is made (block 405).

[0025] The process of identifying one or more suitable content sources (block 205) is further described with reference to FIG. 5. A determination of the number (e.g. a threshold) of results, e.g. content sources, occurs in block 501. Suitable processing generates results corresponding to a content vector (block 503). A determination is made whether enough results have been found (block 505). If so, the process ends, optionally presenting results, e.g. content sources, to the user. If not, additional results are generated corresponding to one or more additional content vectors (block 507). Results are generated until the number of results determined in block (501) is reached (block 509).

[0026] The above-outlined processes are suitable for a variety of applications. For example, one exemplary process for suggesting content sources is discussed generally with reference to the flowchart of FIG. 6. One or more keywords are received (block 601), directly or indirectly, from an advertiser or other user seeking to target its advertisements among multiple ad placement options. The advertiser may have bid on the keyword, input the keyword, selected it from a list of available keywords, or otherwise transmitted data corresponding to the keyword. The keyword is suitably processed to determine one or more corresponding content vectors (block 603), which, as mentioned previously, can correspond to queries which led to clicks on web-sites. A predetermined number K of web-sites corresponding to the content vectors are presented (block 605). If web-sites have been ranked by how often they have been selected in conjunction with the given content vector, the number K of web-sites which are returned to the advertiser may also correspond to the top K web-sites. One or more of the suggested web-sites can be selected for further use in creating an ad campaign.

[0027] To generate the top K web-sites, one suitable approach is to determine one or more two-word, content vectors corresponding to the keyword(s) received. Suitable processing, either independently of receiving keywords or in conjunction therewith, cause particular sites to be ranked by the number of times the content vector led to site selection. If this approach yields K web-site recommendations, there is no need to consult the one-word content vectors. Otherwise, web-site recommendations are made using one-word content vectors until the desired number of recommendations has been generated. Since single-term content vectors may or may not be accurate indicators of a desired metric of user behavior (e.g., popularity), additional processing, such as suggesting sites in a round-robin fashion, may be employed to enhance diversity of the suggested sites and otherwise improve the quality of the recommendations .

[0028] FIG. 7 is a flowchart of another possible method of suggesting web-sites. As in the method previously described in relation to FIG. 6, one or more keywords are received (block 701) and one or more corresponding content vectors are determined (block 703). Search logs are accessed (block 705) to generate a list of top queries that led to clicks or selections of web-sites (block 707). Content vectors corresponding to the top queries are defined and associated with web-sites (block 709). Web-sites are ranked by how many times content vectors resulted in such web-sites being selected ("clicked on") (block 711). The web-site rankings determined in block 711 are accessed for the content vectors extracted from the advertiser keywords in block 703. The top web-sites, as ranked, and up to K in number, are suggested (block 715).

[0029] One suitable approach to determining content vectors corresponding to the top queries and to the advertiser keywords is now described. Since a query and an advertiser's keywords can both be a sequence of one or more words, the same or similar algorithm may be used to generate corresponding content vectors. For each word sequence, a weight is assigned. A list of all single-word or two-word phrases contained in the sequence is generated. The weight assigned to the sequence is likewise assigned to each of the single-word or two-word phrases generated, multiplied by their frequency of occurrence. The resulting list may then be ordered according to the assigned weights, so that content vectors for the top queries or keywords may be determined. For queries, the assigned weight may factor in the number of selections (e.g., clicks) that resulted from the query on the domain under consideration. For an advertiser keyword, the assigned weight may factor in the number of time the advertiser may have used that keyword previously.

[0030] It can be appreciated from the foregoing exemplary methods that there can be considerable variation not only in the processes and their applications, but also in the order of processing data herein. In other words, the order in which certain processes have been described in this document should not be construed as limiting the process to such order. Rather, different implementations and applications may perform one or more processes in an order different from that described and illustrated in FIGS. 2-7, including parallel processing, interactive processing, and adaptive processing. Thus, as just one example, accessing and processing of search logs, such as in blocks 705, 707, 709, and 711, may precede receipt of keywords (block 701), be performed in parallel, may follow keyword receipt or other processing, or may be interspersed with keyword processing or even with other advertisement related functions.

[0031] A variety of hardware and software configurations are suitable for implementing processes for suggesting web-sites as a function of how often they have been selected from search results. System 101 (FIG. 1) is one such implementation, and can make use of one or more suitably programmed servers accessible to advertisers through the world- wide web. A suitable user interface, such as those shown in FIG. 1 , may be provided for interacting with advertisers 107. Any suitable memory or data structures can be associated with or accessible by system 101 if needed to perform its site suggesting functions and related processing.

[0032] Search logs 103 are stored in a suitable data structure. Programming and hardware for processing search logs 103 to yield web-site rankings may be independent from other programming of system 101 or may be associated therewith, depending on the implementation. Similarly, system 101 may or may not need access to advertiser information 115 for interacting with advertisers 107, depending on the nature of the implementation.

[0033] Software for suggestion system 101 may be implemented in a variety of ways. For example, programming of systems 101 may be implemented as a relatively independent, web-based application; as part of a suite of tools for creating on-line ad campaigns; as a feature to an existing site-selection tool; or in any number of other variations. Accordingly, depending on the implementation, the site suggestion processes of system 101 may be performed independently of other site selection methodologies, or may occur in conjunction with such methodologies. As such, suggestion system 101 may incorporate or work in conjunction with ranking, categorization, taxonomy, or other filtering methodologies for website selection in creating ad campaigns.

[0034] Web-sites suggested by system 101 may not only be incorporated directly by an advertiser into an ad campaign, but could also serve as inputs to other site selection or ad creation processes.

[0035] In one implementation, site suggestion system 101 is another tool or feature to assist advertisers using web-based, advertisement creation products by Google, such as Google ADWORDS. In such implementation, system 101 may work in conjunction with a site selection tool or other program features to target ads.

[0036] Alternatively, a site suggestion system can be implemented by an advertiser or by an advertising agency primarily for the benefit of that advertiser's or agency's campaigns. In such implementation, batch data from search logs could be provided to the advertisers or agency, and the suggestion system would interact with employees or agents of the advertiser or agency to present suggestions.

[0037] A number of embodiments of the invention have been described. Nevertheless, it will be understood that still further variations and modifications may be made without departing from the spirit and scope of the invention. Accordingly, other embodiments are within the scope of the following claims.

Claims

WHAT IS CLAIMED IS:

1. A method comprising : receiving input corresponding to at least one keyword associated with an online advertisement; and indicating at least one suggested content source for the advertisement based on whether the suggested content source was previously selected in a previous query corresponding to the keyword.

2. The method of claim 1 , further including determining a term from the previous query corresponding to the keyword received, and indicating a content source for the on-line advertisement by selecting a content source associated with the term.

3. The method of claim 2, further comprising indicating multiple suggested content sources for the on-line advertisement by selecting from a set of content sources associated with the term.

4. The method of claim 1 , wherein the content source is a web-site.

5. A computer system comprising: means for determining content vectors from logs related to web-based queries, the vectors corresponding to web-sites both returned from the queries and selected as a result of the queries; means for ranking the web-sites by how often the content vectors occurred in corresponding web queries; means for receiving user input corresponding to at least one keyword associated with an on-line advertisement; means for correlating the keyword to at least one of the content vectors; means for determining a set of recommended web-sites for the keyword as a function of the ranking of the web-sites.

6. The system of claim 5, wherein the means for determining content vectors includes means for processing the logs over a period of time to identify terms associated with corresponding web-sites and means for determining, for the corresponding web-sites, the top terms that led to selection of the corresponding web-sites.

7. The system of claim 6, wherein the means for processing the logs includes means for identifying single terms and word pairs.

8. The method of claim 5, wherein the means for correlating the keyword to at least one of the content vectors comprises identifying multiple terms corresponding to the keyword.

9. A method of creating an on-line advertisement, comprising: receiving a selection from a plurality of advertisement placement options, one of the options being a web-site-based placement; receiving data related to the placement of the advertisement; determining at least one content vector corresponding to the data received, wherein the content vector is derived from previous queries leading to selections of web-sites resulting from the queries; presenting suggested web-sites corresponding to the content vector for the web-site -based placement of the advertisement; and enabling selection of one of the suggested web-sites for possible placement of the on-line advertisement.

10. The method of claim 9, wherein the step of presenting the web-sites includes: accessing a data structure indicating a number of times the content vector occurred in the previous queries leading to selections of the web-sites; and suggesting a set of the top web-sites according to the number of times the content vector occurred.

11. The method of claim 10, wherein suggested web-sites are presented up to a threshold number in accordance with the number of times the content vector occurred.

12. The method claim 9, wherein receiving the data includes receiving a plurality of keywords in response to user input, and further comprising determining a set of content vectors corresponding to the keywords, and wherein presenting the web-sites includes recommending the web-sites as a function of the set of content vectors.

13. A computer-implemented method comprising: determining content vectors from a log related to queries, the vectors corresponding to content sources both returned from the queries and selected as a result of the queries; ranking the content sources by how often the content vectors occurred in corresponding queries; receiving user input corresponding to at least one keyword associated with an on-line advertisement; correlating the keyword to at least one of the content vectors; and determining a set of recommended content sources for the keyword as a function of the ranking of the content sources.

14. The method of claim 13, wherein the queries are web-based queries and the content sources are web-sites.