WO2007126628A2 - Propagating useful information among related web pages, such as web pages of a website - Google Patents
Propagating useful information among related web pages, such as web pages of a website Download PDFInfo
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- WO2007126628A2 WO2007126628A2 PCT/US2007/006870 US2007006870W WO2007126628A2 WO 2007126628 A2 WO2007126628 A2 WO 2007126628A2 US 2007006870 W US2007006870 W US 2007006870W WO 2007126628 A2 WO2007126628 A2 WO 2007126628A2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
- G06F16/2228—Indexing structures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/10—Services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/951—Indexing; Web crawling techniques
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/958—Organisation or management of web site content, e.g. publishing, maintaining pages or automatic linking
Definitions
- Embodiments consistent with the present invention concern information retrieval (IR).
- IR information retrieval
- embodiments consistent with the present invention concern improving IR of documents, such as Web pages for example, that belong to one of a plurality of sets of documents, such as Websites for example.
- Search engines have been very useful in helping people find information of interest on the World Wide Web ("the Web"), as well as on other networks.
- An exemplary search engine is described in the article S. Brin and L. Page, 'The Anatomy of a Large-Scale Hypertextual Search Engine," Seventh International World Wide Web Conference, Brisbane, Australia and in U.S. Patent No. 6,285,999 (both incorporated herein by reference).
- a search engine may receive queries for search results. In response, the search engine may retrieve relevant search results
- FIG. 1 is a high-level block diagram of an environment 100 that may include a network (such as the Internet for example) 160 in which an information access facility (client device) 110 is used to render information accessed from one or more content providers (e.g., Web page servers) 180.
- a search facility (server) 130 may be used by the information access facility 110 to search for content of interest.
- the information access facility 110 may include browsing operations 112 which may include navigation operations 114 and user interface operations 116.
- the browsing operations 112 may access the network 160 via input/output interface operations 118.
- the browsing operations 112 may be performed by a browser (such as Firefox from Mozilla, Netscape from AOL Time Warner, Opera from Opera Software, Explorer from Microsoft, etc.) and the input/output interface operations may be performed by a modem or network interface card (or NIC) and networking software.
- NIC network interface card
- Other examples of possible information access facilities 110 include untethered devices, such as personal digital assistants ("PDAs") and mobile telephones for example, set-top boxes, kiosks, media players, etc.
- PDAs personal digital assistants
- mobile telephones for example, set-top boxes, kiosks, media players, etc.
- Each of the content providers 180 may include stored resources (also referred to as content) 136, resource retrieval operations 184 that access and provide content in response to a request, and input/output interface operations 182. These operations of the content providers 180 may be effected by computers, such as personal computers or servers for example. Accordingly, the stored resources 186 may be embodied as data stored on some type of storage medium such as a magnetic disk(s), an optical disk(s), etc. In this particular environment 100, the term "document" may be interpreted to include addressable content, such as a Web page for example.
- the search facility 130 may perform crawling, indexing/sorting, and query processing functions. These functions may be performed by the same entity or separate entities. Further, these functions may be performed at the same location or at different locations.
- crawling operations 152 get content from various sources accessible via the network 160, and store such content, or a form of such content, as indicated by 154.
- automated indexing/sorting facility 140 automated indexing/sorting operations 142 may access the stored content 154 and may generate a content index (e.g., an inverted index, to be described below) and content ratings (e.g., PageRanks, to be described below) 140.
- query processing operations 134 accept queries and return query results based on the content index (and the content ratings) 140.
- the crawling, indexing/sorting and query processing functions may be performed by one or more computers.
- Figure 2 is a process bubble diagram of an advanced search facility 200.
- the advanced search facility 200 illustrated in Figure 2 performs three main functions: (i) crawling; (ii) indexing/sorting; and (iii) searching.
- the horizontal dashed lines divide Figure 2 into three parts corresponding to these three main functions. More specifically, the first part 150' corresponds to the crawling function, the second part 140' corresponds to the indexing/sorting function, and the third part 134' corresponds to the search (or query processing) function. (Note that an apostrophe '"" following a reference number is used to indicate that the referenced item is merely one example of the item referenced by the number without an apostrophe.) Each of these parts is introduced in more detail below.
- the advanced search facility 200 uses the link structure of the Web, as well as other techniques, to improve search results.
- the crawling part 150' may be distributed across a number of machines.
- a single URLserver (not shown) serves lists of uniform resource locations ("URLs") 206 to a number of crawlers. Based on this list of URLs 206, the crawling operations 202 crawl the network 160' and get Web pages 208. Pre-indexing operations 210 may then generate page rankings 212, as well as a repository 214 from these Web pages 208.
- the page rankings 212 may include a number of URL fingerprint (i.e., a unique value), Page rank value as pairs.
- the repository 214 may include URL, content type and compressed page triples. [0009] Regarding the indexing/sorting part 140', the indexing/sorting operations 220 may generate an inverted index 226. The indexing/sorting operations 220 may also generate page ranks 228 from the citation rankings 212. The page ranks 228 may include document ID, PageRank value pairs.
- the searching operations 230 may be run by a Web server and may use a lexicon 232, together with the inverted index 226 and the PageRanks 228, to generate query results in response to a query.
- the query results may be based on a combination of (i) information derived from PageRanks 228 and (ii) information derived from how closely a particular document matches the terms contained in the query (also referred to as the information retrieval (or "IR") component).
- At least some search engines processing the search "Ramada Cincinnati" would return the main Web page of the Ramada Website as the first search result, even though it might not be as useful as the Web page on the Ramada Website for its hotel in downtown Cincinnati. Worse, at least some search engines might not return any Web page on the Ramada Website as one of its top search results.
- an automated search engine that uses just the information directly about a Web page (e.g., the words on the Web page and their structure, the words in anchors pointing to the Web page, and the Page-rank of the Web page) might not be able to find the Web page that would be the most useful for a particular query.
- it would be useful to improve search engines e.g., by improving the information that they process) so that while a search engine ranks the relevance of a term (e.g., words and/or phrases) of a query to one Web page, it may take account of the pertinence of the term to other Web pages on the same Web site. More generally, it would be useful to improve applications that use the same or similar IR techniques.
- Embodiments consistent with the present invention may be used to improve information retrieval, such as Web page search for example. Such embodiments may do so by (a) accepting information pertaining to a Website; (b) identifying a term, pertaining to a first Web page of the Website, that likely should pertain to another Web page of the Website for purposes of processing a search query including the term; (c) determining a second Web page of the Website that has a particular relationship with the first Web page; (d) determining whether or not the identified term should be associated with the second Web page; and (e) if it is determined that the term should be associated with the second Web page, then saving the association of the identified term with the second Web page such that the second Web page would have a higher search score for a search query including the identified term than it would otherwise have.
- At least some embodiments consistent with the present invention can use the foregoing technique to propagate information up, down, or across the topology of a Website.
- the act of identifying a term identifies a term strongly associated with the Website.
- the identified term is highly descriptive information such as, for example, a location, an address, an uncommon term, a product category, etc.
- At least some embodiments consistent with the present invention may then (a) receive a search query including the identified term; and (b) increase the search result scores of the second Web page having a saved association with the identified search term.
- a magnitude of the search result score increase is a function of a non-increased search result score of the second Web page.
- Figure 1 is a bubble diagram of an exemplary environment in which, or with which, embodiments consistent with the present invention may be used.
- Figure 2 is a bubble diagram of an exemplary search engine in which, or with which, embodiments consistent with the present invention may be used.
- Figure 3 is a bubble diagram of operations that may be performed, and information that may be generated and/or used by such operations, in embodiments consistent with the present invention.
- Figure 4 is a flow diagram of an exemplary method for associating intra- Website information in a manner consistent with the present invention.
- Figure 5 is a flow diagram of an exemplary method for performing a Web search in a manner consistent with the present invention.
- Figure 6 is a flow diagram of an exemplary method for propagating authoritative intra- Website information (e.g., down a Website topology) in a manner consistent with the present invention.
- Figure 7 is a flow diagram of an exemplary method for propagating highly descriptive intra- Website information (e.g., up a Website topology) in a manner consistent with the present invention.
- Figure 8 illustrates an example of propagating intra-Website information down to
- Figures 9 and 10 illustrate first and second examples of propagating intra- Website information up to a Web page of the Website.
- Figure 11 is a block diagram of apparatus that may be used to perform at least some operations, and store at least some information, in a manner consistent with the present invention.
- the present invention may involve novel methods, apparatus, message formats, and/or data structures for improving information retrieval, such as Web page search for example.
- the following description is presented to enable one skilled in the art to make and use the invention, and is provided in the context of particular applications and their requirements.
- the following description of embodiments consistent with the present invention provides illustration and description, but is not intended to be exhaustive or to limit the present invention to the precise form disclosed.
- Various modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles set forth below may be applied to other embodiments and applications.
- a series of acts may be described with reference to a flow diagram, the order of acts may differ in other implementations when the. performance of one act is not dependent on the completion of another act.
- non-dependent acts may be performed in parallel.
- article "a” is intended to include one or more items. Where only one item is intended, the term “one” or similar language is used.
- "information” may refer to the actual information, or a pointer to, identifier of, or location of such information. No element, act or instruction used in the description should be construed as critical or essential to the present invention unless explicitly described as such. Thus, the present invention is not intended to be limited to the embodiments shown and the inventors regard their invention to include any patentable subject matter described.
- a "document” is to be broadly interpreted to include any machine-readable and machine-storable work product.
- a document may be a file, a combination of files, one or more files with embedded links to other files, a demarcated and identified part of a file, etc.
- the files may be of any type, such as text, audio, image, video, etc. .
- Parts of a document to be rendered to an end user can be thought of as "content" of the document.
- a document may include "structured data” containing both content (words, pictures, etc.) and some indication of the meaning of that content (for example, e-mail fields and associated data, HTML tags and associated data, etc.)
- Ad spots in the document may be defined by embedded information or instructions.
- a common document is a Web page.
- Web pages often include content and may include embedded information (such as meta information, hyperlinks, etc.) and/or embedded instructions (such as JavaScript, etc.).
- embedded information such as meta information, hyperlinks, etc.
- embedded instructions such as JavaScript, etc.
- a document has an addressable storage location and can therefore be uniquely identified by this addressable location.
- a universal resource locator (URL) is an address used to access information on the Internet.
- a "Web document” includes any document published on the Web. Examples of
- Web documents include, for example, a Website or a Web page.
- a "home" Web page will typically be the root Web page of a Website, or a Web page with a URL suggesting that it is a home page (such as "defaultHTML").
- a "term” may be a "word” or a "phrase”.
- Embodiments consistent with the present invention may be used in, or with, an exemplary environment 100 such as described above with reference to Figure 1.
- an exemplary search engine such as the one described above with reference to Figure 2.
- embodiments consistent with the present invention may be used in, or with, other environments.
- FIG. 3 is a bubble diagram of operations that may be performed, and information that may be generated and/or used by such operations, in embodiments consistent with the present invention. Generally, operations above line 340 are performed ahead of time, whereas operations below the line 340 are performed in real-time. However, in at least some embodiments consistent with the present invention, this is not necessary.
- Website collection information 310 may include a number of sets of Website information 315.
- Intra-website information association operations 320 may be used to generate revised Website and/or Web page information 335. Such information may be used for purposes of IR for example.
- Web page search operations 360 may use Web page information 370 and the set 330 of revised Website and/or Web page information to generate a set of one or more search results 380 responsive to query information 350.
- the intra- Website information association operations 320 may (i) identify information likely to pertain to more than just the Web page it is directly associated with, (ii) identify one or more other, related, Web pages that such information is likely to pertain to, and (iii) associate the identified information with the identified other Web page(s) such that the Web page(s) would have a higher search score for a search query including the identified information than it would otherwise have.
- the search score may affect a ranking of a search result, and therefore may affect a position of the search result with respect to other search results and even whether or not the search result is returned in response to a query.
- FIG 4 is a flow diagram of an exemplary method 400 for associating intra- Website information in a manner consistent with the present invention.
- Website information e.g., Web pages, Web page content, Web page meta data, yellow pages data, domain registration data, etc.
- Information which is likely to pertain to Web pages of the Website other than just the Web page that it is (directly) associated with, is identified.
- Block 420 One or more other, related Web pages that the identified information is likely to pertain to are identified.
- the identified information is then associated with the identified Web page(s).
- the revised Website and/or Web page(s) (e.g., the Web pages with the new associated information) information is stored (e.g., saved on storage device for later use) such that the revised Web page(s) would have a higher search score for a search query including the identified information than the original Web page(s) would have had (Block 450), before the method 400 is left (Node 460).
- FIG. 5 is a flow diagram of an exemplary method 500 for performing a Web search in a manner consistent with the present invention.
- Search query information is accepted.
- Block 510 A set of one or more search results are then generated using the accepted search query information, Web page information and revised Website and/or Web page information.
- Block 520 The search result(s) are then served to the requestor (Block 530) before the method 500 is left (Node 540).
- FIG. 6 is a flow diagram of an exemplary method 600 for propagating authoritative intra- Website information (e.g., down a Website topology) in a manner consistent with the present invention.
- Website information is accepted.
- For a given Web page of the Website e.g., the home page
- term(s) found on the given Web page for which the Website is deemed authoritative are determined.
- Such term(s) e.g., words and/or phrases
- Such term(s) may be subject to a validation procedure.
- Web pages of the Website related to the information source Web page e.g., Website home page or root page
- Web pages determined to be related falling under one or more exceptions may be excluded.
- the identified information (e.g., authoritative terms) may then be associated with the determined (and non-excluded) Web pages. (Block 660).
- the revised Website and/or Web page information may then be saved (e.g., stored) (Block 670) before the method 600 is left (Node 680).
- one or more sources of evidence may be considered when determining a term for which the Website is deemed authoritative.
- One exemplary source of evidence that a Website is authoritative for a term(s) may be the use of the term(s) in one or more references (e.g., links or hypertext links) to the Website.
- Yet another exemplary source of evidence that a Website is authoritative for a term(s) may be the use of the term(s) (e.g., a business name) in a directory (e.g., Yellow Page) entry that lists the home page of the Website as the Website for the business.
- Still another exemplary source of evidence that a Website is authoritative for a term(s) may be the use of the term(s) in the domain name of the Website. Still yet another exemplary source of evidence that a Website is authoritative for a term(s) may be if the term(s) is a registered trademark, and the trademark registration is associated with (the home page of) the Website.
- Another exemplary source of evidence may be a probability that if a search query includes a term, then there will be a good search result (e.g., one that is clicked on, one that receives a "long click" where the user doesn't return back to the previous Web page and click on a different result for a given amount of time (e.g., three minutes), etc.) corresponding to the Website.
- the probability might correspond to the strength of the evidence.
- the strength of the evidence may be used in determining strength of the association (as used for IR purposes) of the determined term and the destination (or sink) Web page. That is, the strength of the evidence may be used to determine (a) whether or not to make and association, and/or (b) a strength of the association.
- the degree of relatedness between the Web page source of the determined term and the destination (or sink) Web page may be used in determining a strength of the association (as used for IR purposes) of the determined term and the destination (or sink) Web page.
- the determined term(s) might be subject to one or more validation tests. For example, for the determined term, the probability that if a search query includes the term, there will be a good result for the Website under consideration might have to be greater than (or more than a predetermined amount and/or percentage greater than) the corresponding probability for all other Websites (for which such information is known or determinable).
- the determined query information (“the identified information") might not be propagated (e.g., down) to certain Web pages of the Website under consideration. For example, Web pages with a low score (e.g., a low page rank) might not get the identified information associated with them.
- the propagation of the identified information may be limited to a predetermined number (e.g., 2) of degrees of separation (e.g., number of backslashes from source Web page) of the source (e.g., home or root) Web page and the destination Web page in the Website.
- a predetermined number e.g., 2
- degrees of separation e.g., number of backslashes from source Web page
- certain types of Web pages e.g., press releases, message boards, forums, foreign language page (e.g., the destination page in a language other than that of the source page, etc.
- foreign language page e.g., the destination page in a language other than that of the source page, etc.
- FIG. 7 is a flow diagram of an exemplary method 700 for propagating highly descriptive intra- Website information (e.g., up a Website topology) in a manner consistent with the present invention.
- Website information is accepted.
- Location(s) e.g., addresses
- some other highly descriptive information associated with a Web page other than the home (or root) page of the Website is identified.
- the identified information e.g., location is information might be scored per Web page.
- the identified information (e.g., location) is propagated (e.g., up the Web site topology) to one or more destination Web pages.
- a confidence in the pertinence of the identified information (e.g., location) to a destination Web page is determined. (Block 750) If the confidence is not high enough, the method 700 is simply left. (Block 760 and Node 790) On the other hand, if the confidence is high enough, the identified information (e.g., location) is associated with the destination Web page (Blocks 760 and 770), and this association is be stored (e.g., saved) (Block 780) before the method 700 is left (Node 790).
- blocks 760-780 may be run for each of the one or more destination Web pages. It is possible for the confidence to be high enough for one Web page of the Website, but not another. Thus, in at least some embodiments consistent with the present invention, the evidence for each Web page is evaluated separately (except as described below). At each Web page, all the evidence for all Web pages below it in the Website topology is accumulated. The information for the particular Web page is evaluated using these accumulated evidence. For example, a Web page lower in the sate topology might have information for just one address, which is enough evidence to propagate the address.
- a Web page higher in the site topology might have evidence for other addresses as well, which may lead to a conclusion that no one address is particularly relevant for the Website, in which case the address(es) might not be propagated up to such Web page higher in the site topology.
- a first Web page on a Website may have sufficient evidence to be confident enough, but a second Web page on the Website that is not above the first Web page on the site topology may have no evidence, insufficient evidence, and/or contra-evidence.
- the total number of different addresses for which any Web page has conclusive evidence might be associated with (e.g., recorded on) all Web pages of the Website.
- scoring address information if a Website has many addresses, the address information on any given page might be given less weight, because the Website, overall, does not seem to have any physical focus.
- locations associated with a Web page might be identified.
- Various sources of data that might be used to identify the locations include full addresses on the Web page, occurrences of location names on the Web page, yellow page data (e.g., with home pages and/or telephone numbers) giving an address or location for the Web page, Meta information from domain registration, country code of domain, data bases including terms that are places, location names occurring on other pages near links to the page, etc.
- the location names from each source might be associated with the Web page.
- the kind and number of sources that provided each piece information might be tracked. Referring back to block 730, such information may be used to score the identified location information.
- information instead of, or in addition to, location information may be identified.
- uncommon terms e.g., high inverse document frequency (IDF) terms, etc.
- page categories e.g., from a predefined list, from vertical categories, from concepts, from topics, from genres, etc.
- this information might be propagated up the URL hierarchy of the Website. For example, at each Web page, all locations mentioned at or below it in the URL hierarchy for the Website might be accumulated.
- the scores or one or more factors affecting the scores might be accumulated.
- the accumulated scores or score factors may be used to determine a confidence value for each location. That is, all of the location information and their sources may be weighed to determine a confidence in each location.
- the confidence scoring might be done for each Web page, where the confidence score is a function of information only on Web page(s) below the particular Web page in the Website topology.
- a machine learning system might be used to decide how to weigh the different kinds of "location confidence" evidence.
- Examples of evidence might include the source of the evidence (e.g., address on Web page, yellow pages data, domain registry, data, etc.), the path (up the hierarchy, for example) of the evidence to the current Web page, capitalization, context, etc.
- the machine learning system might be trained using examples drawn from Web pages for which there exists reliable evidence (e.g., yellow pages data is typically very reliable). Once the system is trained, it can be used to weigh the information accumulated for each location name at each Web page.
- the confidence level may be used in determining a strength of the association (as used for IR purposes) of the location and the destination (or sink) Web page. That is, the confidence level may be used to determine (a) whether or not to make an association, and/or (b) a strength of the association.
- the number of distinct locations may be used in the weighting of evidence. For example, for a given Web page, if there is evidence of many different addresses, then it may be desirable to propagate none of the addresses to that Web page, or to propagate such addresses but give them less weight in later scoring when being considered as a relevant search result for a query including one or more of the addresses.
- a nationwide franchise like McDonalds that has locations through out the United States. In such a scenario, it might be undesirable to propagate up all of those locations to the home page for McDonalds' Website.
- a Website is deemed to include more than a predetermined number of (e.g., 20) different addresses, it may be desirable not to propagate any of the addresses to any of the Web pages of the Website.
- the locations are considered to be likely to pertain to the Web page. Referring back to blocks 770 and 780, the location(s) may then be associated with the Web page, and this association may be stored (e.g., saved). [0061 ] In at least some embodiments consistent with the present invention, the location information might be propagated up only to the home (or root) page of the Website. [0062] When processing a query, in at least some embodiments consistent with the present invention, the Web page might be given credit for having all the words of the location, provided there are other significant words in the query besides the location.
- Figure 11 is a block diagram of apparatus 1100 that may be used to perform at least some operations, and store at least some information, in a manner consistent with the present invention.
- the apparatus 1100 basically includes one or more processors 1110, one or more input/output interface units 1130, one or more storage devices 1120, and one or more system buses and/or networks 1140 for facilitating the communication of information among the coupled elements.
- One or more input devices 1132 and one or more output devices 1134 may be coupled with the one or more input/output interfaces 1130.
- the one or more processors 1110 may execute machine-executable instructions (e.g., C or C++ running on the Solaris operating system available from Sun Microsystems Inc. of Palo Alto, California or the Linux operating system widely available from a number of vendors such as Red Hat, Inc. of Durham, North Carolina) to perform one or more aspects of the present invention. At least a portion of the machine executable instructions may be stored (temporarily or more permanently) on the one or more storage devices 1120 and/or may be received from an external source via one or more input interface units 1130.
- machine-executable instructions e.g., C or C++ running on the Solaris operating system available from Sun Microsystems Inc. of Palo Alto, California or the Linux operating system widely available from a number of vendors such as Red Hat, Inc. of Durham, North Carolina
- the machine 1100 may be one or more conventional personal computers.
- the processing units 1110 may be one or more microprocessors.
- the bus 1140 may include a system bus.
- the storage devices 1120 may include system memory, such as read only memory (ROM) and/or random access memory (RAM).
- the storage devices 1120 may also include a hard disk drive for reading from and writing to a hard disk, a magnetic disk drive for reading from or writing to a (e.g., removable) magnetic disk, and an optical disk drive for reading from or writing to a removable (magneto-) optical disk such as a compact disk or other (magneto-) optical media.
- a user may enter commands and information into the personal computer through input devices 1132, such as a keyboard and pointing device (e.g., a mouse) for example.
- Other input devices such as a microphone, a joystick, a game pad, a satellite dish, a scanner, or the like, may also (or alternatively) be included.
- These and other input devices are often connected to the processing unit(s) 1110 through an appropriate interface 1130 coupled to the system bus 1140.
- the output devices 1134 may include a monitor or other type of display device, which may also be connected to the system bus 1140 via an appropriate interface.
- the personal computer may include other (peripheral) output devices (not shown), such as speakers and printers for example.
- the operations described above may be performed on one or more computers. Such computers may communicate with each other via one or more-networks, such as the Internet for example. Referring backs to Figures 1 and 2 for example, the client devices 110, search facilities 130, content providers 180, etc., may be embodied by one or more machines 1100.
- At least some embodiments consistent with the present invention may use different techniques for determining whether a Website is "authoritative" for a term. For example, if the search term is a known (e.g., registered trademark), a Website of the trademark owner might be deemed “authoritative" for the trademark term. As discussed above, various sources of evidence may be considered and a totality of the evidence may be weighed.
- identified information may be associated with an identified Web page in various ways.
- an inverted index such as the one 226 illustrated in Figure 2
- a term e.g., a word or a phrase
- the weight may be referred to as a hit count.
- the inverted index might now include the information:
- the weight may therefore be increased.
- a special type of weight boost may be applied such that it may be selectively used in certain situations, but not in others (e.g., depending on the search query). That is, it may be used to boost the weight in some situations, but not in others (e.g., depending on the search query).
- a term e.g., a word or a phrase
- the inverted index might initially include the information:
- the inverted index might then include the information:
- the weight boost is shown as a variable, it may be simply a binary value indicating whether or not to boost the weight. In some embodiments consistent with the present invention, even if the binary value indicates that the weight should be boosted, in certain circumstances (e.g., factors of the query), boosting the weight might be prevented or decreased.
- the "boost" may be applied to a Web page's score (e.g., an IR score, and/or a Page rank score, etc.) or a component of the score.
- the amount of the boost may be a function of the score, such that a Web page with a high score initially gets a bigger boost than a Web page with a lower initial score.
- the boost may be applied as:
- boost and score are greater than 1.
- the query can be processed depending on whether it is desired to use the revised Web page information, or the original Web page information when processing the query.
- two filters may be applied to a query to decide what revised page information to use when the query includes geographic term information.
- Each of these filters is discussed below.
- For the first filter a list of terms that are likely to be geographical terms, based on whether they appear in queries in ways that geographical terms do, may be generated offline. For example, geographical terms often appear in queries like "hotels in X", If the fraction of all appearances of a potential geographical term that are in queries like is significantly lower than the corresponding fraction for most geographical terms, the term may be considered to be non-geographical.
- MS (the abbreviation for "Mississippi”) is a geographical term, it can mean many other things, as in the phrase “MS California”.
- MS the abbreviation for "Mississippi”
- a list of geographical terms may be generated based on terms with a sufficiently high fraction of their occurrences in queries like "hotels in X”, and similar query forms indicating geography. Then, when scoring a Web page for a query, only the revised geographical Web page information for terms that have been confirmed as geographical are used. Doing so avoids problems for queries like "MS California”.
- information e.g., a term
- a Web page of a Website such that the Web page would have a higher search score for a search query including the term than it would otherwise have
- information e.g., a term
- a document not belonging to the Website Assume, for example, that a first Web page of a first Website includes an address and a reference (e.g., a link), near the address, to a second Web page of a second Website. This might suggests that the address found on the first Web page of the first Website might pertain to the second Web page of the second Website.
- the address might be saved in association with second Web page such that the second Web page would have a higher search score for a search query including the address (or perhaps a portion of the address) than it would otherwise have.
- the source of the information need not be a Web page, and the relationship need not be a link.
- an SEC filing, a business license filing, etc. including a business name and an address of the business (e.g., a corporation's principle place of business).
- a Website is registered to the business, or has a URL including the business name, or prominently displays the business name, but no address information, at least some embodiments consistent with the present invention might take the address (the information) of the SEC filing, business listing, etc.
- the first document determines a Website of the named business (a second document related to the first document), and save the address in association with the home page of the Website such that it would have a higher search score for a search query including the address (or perhaps a portion of the address) than it would otherwise have.
- this second example is slightly different from using other information sources to obtain evidence to validate that information is of a certain type.
- the source of the information need not be a Web page on the same Website, and need not even be a Web page.
- the information (e.g., terms) might have to belong to a class of information (e.g., addresses) that is likely to pertain to other documents.
- a class of information e.g., addresses
- information need not be saved in association with Web pages indiscriminately. Rather, the information might be limited to certain classes or types of information. Examples of classes of information might include addresses, telephone numbers, type of business, genre of page, etc.
- the source of the information need not be a particular document at all. Rather, the source of the information might be a relationship between terms. The relationship should be strong. For example, if a Web page includes the term "Cleveland”, the information might be "Ohio". As another example, if a Web page includes a telephone number with an area code in Chicago, the information might be "Chicago”. As yet another example, the term “Michelangelo” and “Sistine Chapel” are strongly related. Thus, a Web page with the term “Sistine Chapel” might be associated with the term “Michelangelo” such that if a search query includes "Michelangelo", the Web page would received a higher search score than it would have otherwise.
- the information (e.g., Ohio, Chicago, Michelangelo, etc.) might not be sourced from a document or Web page having a particular relationship with the Web page with which it will be associated. Rather, the information might be determined based on a relationship with information on the Web page. The strength of the relationship of terms migh be dependent on the direction of the relationship. For example, it might be useful to associate the term "virus” with a Web page pertaining to "computer security”, but it might not be useful to assoicate the term "computer security” with a Web page pertaining to "viruses".
- Various information expansion techniques may be used to determine one or more terms related to a seed term..
- Figure 8 illustrates an example of propagating authoritative intra- Website information down to Web pages of the Website.
- the home page 810 of Ramada's Website 800 is authoritative for the term "Ramada".
- the majority of links consisting of the text "Ramada” point to Web pages on the Ramada.com Website.
- Additional checks may be used to validate the term in that query to verify that users do, in fact, usually want that Website when they use that term.
- the identified information — "Ramada” — may be associated with the non-exempted Web page 822 and its descendants 831, 832, 833, 842, 844, 846, Web page 824 and its descendants 834, and Web page 826 and its descendants 835 on Ramada' s Website 800 related to the home page 810.
- Such an association may be made by annotating a copy of each non- excluded Web page in ramada.com (Recall, e.g., repository 214 of Figure 2.), or information derived from such Web pages used for JR, as being topical for the term "ramada”. These associations should be made such that the techniques used by a search engine will consider these Web pages more relevant for the term "ramada”.
- each annotated Web page may be considered as having N (e.g., six) additional Web pages pointing to it, using the phrase as anchor text, thereby boosting a Page rank score of the page when Google search techniques are used.
- Figure 9 illustrates a first example of propagating highly descriptive intra- Website information up to a Web page 910 of the Website 900.
- the Website 900 is for the Vietnamese restaurant "Saigon II". Assume that the home (or root) Web page 910 of the Website 900 does not include the address of the restaurant, but that a lower Web page 922 of the Website 900 includes the address 123 Main Street, Anytown, CA. The address may be identified (Recall 720 of Figure 7.). Assume further that "123 Main Street, Anytown, CA” may be deemed an address or location with the desired level of confidence (e.g., due to the terms "street”, the state abbreviation "CA", the syntax of the address, etc.).
- the home page 910 for the Website 900 may be given credit for (e.g., treated as including) the location "123 Main Street, Anytown, CA" (e.g., for purposes of search) even though the name of the location doesn't appear on that home page 910.
- a Web page 924 of the Website 900 includes menu items of the restaurant.
- One of the menu items is "pho" (a beef noodle soup).
- "pho" is considered to be a highly descriptive term (e.g., due to it's infrequent use in a wide collection of Web pages). This term may be identified and propagated up to the home page 910 of the Website 900 as well.
- the home page 910 of the Website 900 may be given credit for (e.g., treated as including) the term "pho" (e.g., for purposes of search) even though this term doesn't appear on the home page 910.
- Figure 10 illustrates a second example of propagating intra- Website information up to a Web page 1010 of the Website 1000.
- the Website 1000 is for the electronics retailer Best Buy.
- the home (or root) page 1010 includes links to various Web pages 1021-1025 corresponding to various product categories. These Web pages 1021-1025, in turn, include links to various Web pages 1031-1035 corresponding to particular products.
- product categories are considered to be highly descriptive. In this example, such product categories may be identified in the Web pages 1021-1025 and propagated up to the home page 1010 of the Website 1000.
- the home page 1010 of the Website 1000 may be given credit for (e.g., treated as including) the terms “televisions”, “computers”, “video games”, “DVDs”, “CDs”, “cameras” and “video cameras” (e.g., for purposes of search) even if these terms don't appear on the home page 1010.
- the term “best buy” might also be propagated down to the Web pages 1021-1025 and 1031-1035 of the Website 1000.
- the home page 1010 for Best Buy would be more relevant to such a query than it would have been otherwise. ⁇ 4.4 CONCLUSIONS
Abstract
Description
Claims
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AU2011201819A AU2011201819B2 (en) | 2006-03-31 | 2011-04-20 | Propagating useful information among related web pages, such as web pages of a website |
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US7933890B2 (en) | 2011-04-26 |
EP2013703A2 (en) | 2009-01-14 |
AU2011201819B2 (en) | 2013-07-04 |
KR20080109061A (en) | 2008-12-16 |
JP5069285B2 (en) | 2012-11-07 |
AU2007243784A1 (en) | 2007-11-08 |
JP2009532766A (en) | 2009-09-10 |
CA2647864A1 (en) | 2007-11-08 |
AU2011201819A1 (en) | 2011-06-09 |
CN101454748A (en) | 2009-06-10 |
US8521717B2 (en) | 2013-08-27 |
CN101454748B (en) | 2010-12-08 |
EP2013703A4 (en) | 2012-05-23 |
US20140052735A1 (en) | 2014-02-20 |
US20110196861A1 (en) | 2011-08-11 |
US20070233808A1 (en) | 2007-10-04 |
CA2647864C (en) | 2013-06-25 |
US8990210B2 (en) | 2015-03-24 |
AU2007243784B2 (en) | 2011-01-20 |
KR101225467B1 (en) | 2013-01-24 |
WO2007126628A3 (en) | 2008-09-25 |
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