Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for ranking applications. In one aspect, a method includes receiving, from a computing device, a feedback report related to an application configured to run on the computing device, the feedback report including information indicative of an error with the application, and a geographic location of the computing device at a time when the application encountered the error; generating, based on the feedback report, one or more metrics indicative of a performance of the application in the geographic location; retrieving information indicative of other applications associated with metrics indicative of a performance of the other applications in the geographic location; and ranking the applications in accordance with the metrics indicative of the performance of the applications in the geographic location.

Abstract: Methods and systems for automatically providing a second version of an application may include receiving performance criteria for an application and determining a performance issue relating to a first version of the application. A second version of the application may be automatically provided, and the second version may be a last known working version of the application. Additionally, performance criteria for an application may be received and a performance issue relating to a first version of the application may be determined. The performance issue may be specific to a demographic. A second version of the application may be provided, and the second version may correct the performance issue for the demographic. The performance criteria may be received from one or more devices, and the second version of the application may be identified based on the performance criteria received from the devices.

Abstract: This specification describes technologies relating to content presentation. In general, methods include the actions of receiving, for each of a plurality of mobile applications, application data associated with a respective mobile application of the plurality of mobile applications, the application data including different user interaction data associated with the respective mobile application; clustering applications of the plurality of mobile applications according to a classification; logging user interactions with each application of a cluster of applications for a plurality of users; generating an initial score for a first application in the cluster according to the logged interactions; and calculating pricing for content items served to the first application based on the initial score and an average score for applications in the cluster.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for ranking applications. In one aspect, a method includes receiving, from a computing device, a feedback report related to an application configured to run on the computing device, the feedback report including information indicative of an error with the application, and a geographic location of the computing device at a time when the application encountered the error; generating, based on the feedback report, one or more metrics indicative of a performance of the application in the geographic location; retrieving information indicative of other applications associated with metrics indicative of a performance of the other applications in the geographic location; and ranking the applications in accordance with the metrics indicative of the performance of the applications in the geographic location.

Abstract: Systems and methods to detect and analyze character set translation errors in an electronic document are provided. One method according to the invention includes detecting a first character string within the electronic document; converting the first character string to a sequence of bytes by use of a first character set; using a second character set to convert the sequence of bytes to a second character string; and detecting whether a length of the second character string is different than a length of the first character string. Detection results are stored in memory for later analysis. Systems according to aspects of the invention perform are configured to perform this and other methods. In one example, the system includes a test scheduler, a test result classifier, an analyzer unit, and a processor coupled to data storage for performing the aforementioned method.

Abstract: This specification describes technologies relating to content presentation. In general, one aspect of the subject matter described in this specification can be embodied in methods that include the actions of receiving an interactive content item at a mobile device; presenting the interactive content item on the mobile device, the interactive content item being presented with other content; receiving a user input associated with the content item, the user input being one of a plurality of available user inputs associated with the content item; identifying a content item action corresponding to the received user input from among a plurality of content item actions, each associated with a different user input; and performing, using one or more processors, the identified content item action.