Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for transforming text strings. In general, one aspect of the subject matter described in this specification can be embodied in methods that include the actions of receiving input string having a plurality of terms, the input string being in a first form; transforming the input string from the first form to a second form including: applying one or more rules to the input string to identify one or more terms for translation, the one or more identified terms being fewer than the plurality of terms, translating the identified one or more terms to one or more translated terms in the second form, and transliterating the remaining terms of the plurality of terms into transliterated terms in the second form; and concatenating the translated and transliterated terms to form a hybrid output string in the second form.

Abstract: Systems and methods for scheduling documents for crawling are disclosed. In some implementations, a method includes obtaining sitemap information for a plurality of websites; and analyzing the sitemap information to identify a website, in the plurality of websites. The website has sitemap information that is at least potentially out of date. The method also includes updating the sitemap information for the identified website by downloading updated sitemap information for the identified website; and scheduling documents for crawling in accordance with the updated sitemap information for the identified website.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for transforming text strings. In general, one aspect of the subject matter described in this specification can be embodied in methods that include the actions of receiving input string having a plurality of terms, the input string being in a first form; transforming the input string from the first form to a second form including: applying one or more rules to the input string to identify one or more terms for translation, the one or more identified terms being fewer than the plurality of terms, translating the identified one or more terms to one or more translated terms in the second form, and transliterating the remaining terms of the plurality of terms into transliterated terms in the second form; and concatenating the translated and transliterated terms to form a hybrid output string in the second form.

Abstract: A method of analyzing documents or relationships between documents includes receiving a notification of an available metadata document containing information about one or more network-accessible documents, obtaining a document format indicator associated with the metadata document, selecting a document crawler using the document format indicator, and crawling at least some of the network-accessible documents using the selected document crawler.

Abstract: A method of analyzing documents or relationships between documents includes receiving a notification of an available metadata document containing information about one or more network-accessible documents, obtaining a document format indicator associated with the metadata document, selecting a document crawler using the document format indicator, and crawling at least some of the network-accessible documents using the selected document crawler.

Abstract: Methods and systems for a web crawler scheduler that utilizes sitemaps from websites are described. A web crawler scheduling system receives a notification from a website or web server. In response to the notification, the system accesses one or more sitemap(s) for documents associated with the website or web server. The system schedules crawls of the documents based on information identified from the sitemaps. The system crawls at least a subset of the documents scheduled for crawling.

Abstract: A method of analyzing documents or relationships between documents includes receiving a notification of an available metadata document containing information about one or more network-accessible documents, obtaining a document format indicator associated with the metadata document, selecting a document crawler using the document format indicator, and crawling at least some of the network-accessible documents using the selected document crawler.

Abstract: A method of analyzing documents or relationships between documents includes receiving a notification of an available metadata document containing information about one or more network-accessible documents, obtaining a document format indicator associated with the metadata document, selecting a document crawler using the document format indicator, and crawling at least some of the network-accessible documents using the selected document crawler.

Abstract: Methods and systems for a web crawler scheduler that utilizes sitemaps from websites are described. A web crawler scheduling system receives a notification from a website or web server. In response to the notification, the system accesses one or more sitemap(s) for documents associated with the website or web server. The system schedules crawls of the documents based on information identified from the sitemaps. The system crawls at least a subset of the documents scheduled for crawling.

Abstract: Methods and systems for a sitemap generating client for web crawlers are described. The client accesses one or more sources of document information about the documents available on a website, such as the file system, access logs, or pre-made URL lists. Document information is extracted from the sources and one or more sitemaps are generated based on the extracted document information. A notification is transmitted to a remote computer, informing that the sitemap(s) are available for access and likely have been updated. If the remote computer is associated with a web crawler, the remote computer may access the sitemap(s) and use the sitemaps to schedule a crawl of documents included or available on the website.

Abstract: Methods and systems for a web crawler scheduler that utilizes sitemaps from websites are described. A web crawler scheduling system receives a notification from a website or web server. In response to the notification, the system accesses one or more sitemap(s) for documents associated with the website or web server. The system schedules crawls of the documents based on information identified from the sitemaps. The system crawls at least a subset of the documents scheduled for crawling.

Abstract: Methods and systems for a sitemap generating client for web crawlers are described. The client accesses one or more sources of document information about the documents available on a website, such as the file system, access logs, or pre-made URL lists. Document information is extracted from the sources and one or more sitemaps are generated based on the extracted document information. A notification is transmitted to a remote computer, informing that the sitemap(s) are available for access and likely have been updated. If the remote computer is associated with a web crawler, the remote computer may access the sitemap(s) and use the sitemaps to schedule a crawl of documents included or available on the website.

Abstract: Methods and systems for a web crawler scheduler that utilizes sitemaps from websites are described. A web crawler scheduling system receives a notification from a website or web server. In response to the notification, the system accesses one or more sitemap(s) for documents associated with the website or web server. The system schedules crawls of the documents based on information identified from the sitemaps. The system crawls at least a subset of the documents scheduled for crawling.

Abstract: Methods and systems for a sitemap generating client for web crawlers are described. The client accesses one or more sources of document information about the documents available on a website, such as the file system, access logs, or pre-made URL lists. Document information is extracted from the sources and one or more sitemaps are generated based on the extracted document information. A notification is transmitted to a remote computer, informing that the sitemap(s) are available for access and likely have been updated. If the remote computer is associated with a web crawler, the remote computer may access the sitemap(s) and use the sitemaps to schedule a crawl of documents included or available on the website.

Abstract: Methods and systems for a web crawler scheduler that utilizes sitemaps from websites are described. A web crawler scheduling system receives a notification from a website or web server. In response to the notification, the system accesses one or more sitemap(s) for documents associated with the website or web server. The system schedules crawls of the documents based on information identified from the sitemaps. The system crawls at least a subset of the documents scheduled for crawling.

Abstract: A method of analyzing documents or relationships between documents includes receiving a notification of an available metadata document containing information about one or more network-accessible documents, obtaining a document format indicator associated with the metadata document, selecting a document crawler using the document format indicator, and crawling at least some of the network-accessible documents using the selected document crawler.

Abstract: A method of analyzing documents or relationships between documents includes receiving a notification of an available metadata document containing information about one or more network-accessible documents, obtaining a document format indicator associated with the metadata document, selecting a document crawler using the document format indicator, and crawling at least some of the network-accessible documents using the selected document crawler.