Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for providing user feedback for robotic demonstration learning. One of the methods includes initiating a local demonstration learning process to collect respective local demonstration data for each of one or more demonstration subtasks defined by a skill template to be executed by a robot. Local demonstration data is repeatedly collected for each of the one or more demonstration subtasks of the skill template while a user manipulates a robot to perform each of the one or more demonstration subtasks defined by the skill template. A respective progress value for each of the one or more demonstration subtasks defined by the skill template is maintained. A user interface presentation is generated that presents a suggested demonstration to be performed by the user based on a respective progress value for each demonstration subtask.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for using skill templates for robotic demonstration learning. One of the methods includes receiving a skill template for a task to be performed by a robot, wherein the skill template defines a state machine having a plurality of subtasks and one or more respective transition conditions between one or more of the subtasks. Local demonstration data for a demonstration subtask of the skill template is received, where the local demonstration data is generated from a user demonstrating how to perform the demonstration subtask with the robot. A machine learning model is refined for the demonstration subtask and the skill template is executed on the robot, causing the robot to transition through the state machine defined by the skill template to perform the task.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for computerized travel services. One of the methods includes identifying photographs using an index of photographs, the photographs being identified from the index as photographs geographically related to a point of interest or destination and having a creation timestamp corresponding to a time of the year; determining for each of the photographs, a relevancy score based at least in part on: selection success data of the photograph for image queries referring to the point of interest or destination, and references to the point of interest or destination in documents associated with the photograph; and selecting a selected photograph from the photographs based at least in part on a respective visual quality score and the respective relevancy scores, the visual quality score representing a degree of visual quality of the respective photographs.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for computerized travel services. One of the methods includes identifying photographs using an index of photographs, the photographs being identified from the index as photographs geographically related to a point of interest or destination and having a creation timestamp corresponding to a time of the year; determining for each of the photographs, a relevancy score based at least in part on: selection success data of the photograph for image queries referring to the point of interest or destination, and references to the point of interest or destination in documents associated with the photograph; and selecting a selected photograph from the photographs based at least in part on a respective visual quality score and the respective relevancy scores, the visual quality score representing a degree of visual quality of the respective photographs.

Abstract: A data processing system receives location data points from computing devices. The system annotates the location data points with entities and determines a duration each of the computing devices was at corresponding entities. The system aggregates the location data points into a set of sequences based on the duration and the entities and stores the set of sequences in a data record. The system accesses the database record including a set of sequences generated from location data points received from computing devices. The system receives, from a computing device, a request for a location sequence that includes a query. The system identifies an attribute of the computing device. The system identifies a sequence based on the set of sequences using the query and the attribute. The system transmits the sequence for display on a display device.

Abstract: A data processing system receives location data points from computing devices. The system annotates the location data points with entities and determines a duration each of the computing devices was at corresponding entities. The system aggregates the location data points into a set of sequences based on the duration and the entities and stores the set of sequences in a data record. The system accesses the database record including a set of sequences generated from location data points received from computing devices. The system receives, from a computing device, a request for a location sequence that includes a query. The system identifies an attribute of the computing device. The system identifies a sequence based on the set of sequences using the query and the attribute. The system transmits the sequence for display on a display device.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for computerized travel services. One of the methods includes identifying photographs using an index of photographs, the photographs being identified from the index as photographs geographically related to a point of interest or destination and having a creation timestamp corresponding to a time of the year; determining for each of the photographs, a relevancy score based at least in part on: selection success data of the photograph for image queries referring to the point of interest or destination, and references to the point of interest or destination in documents associated with the photograph; and selecting a selected photograph from the photographs based at least in part on a respective visual quality score and the respective relevancy scores, the visual quality score representing a degree of visual quality of the respective photographs.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for computerized travel services. One of the methods includes identifying photographs using an index of photographs, the photographs being identified from the index as photographs geographically related to a point of interest or destination and having a creation timestamp corresponding to a time of the year; determining for each of the photographs, a relevancy score based at least in part on: selection success data of the photograph for image queries referring to the point of interest or destination, and references to the point of interest or destination in documents associated with the photograph; and selecting a selected photograph from the photographs based at least in part on a respective visual quality score and the respective relevancy scores, the visual quality score representing a degree of visual quality of the respective photographs.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for computerized travel services. One of the methods includes identifying photographs using an index of photographs, the photographs being identified from the index as photographs geographically related to a point of interest or destination and having a creation timestamp corresponding to a time of the year; determining for each of the photographs, a relevancy score based at least in part on: selection success data of the photograph for image queries referring to the point of interest or destination, and references to the point of interest or destination in documents associated with the photograph; and selecting a selected photograph from the photographs based at least in part on a respective visual quality score and the respective relevancy scores, the visual quality score representing a degree of visual quality of the respective photographs.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for computerized travel services. One of the methods includes identifying photographs using an index of photographs, the photographs being identified from the index as photographs geographically related to a point of interest or destination and having a creation timestamp corresponding to a time of the year; determining for each of the photographs, a relevancy score based at least in part on: selection success data of the photograph for image queries referring to the point of interest or destination, and references to the point of interest or destination in documents associated with the photograph; and selecting a selected photograph from the photographs based at least in part on a respective visual quality score and the respective relevancy scores, the visual quality score representing a degree of visual quality of the respective photographs.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for computerized travel services. One of the methods includes identifying points of interest or destinations associated with a travel location by querying a geographic data store that includes data mapping travel locations to points of interest or destinations; determining for each of the points of interest or destination: a count of travel related documents that refer to the point of interest or destination, a count of travel related queries that refer to the point of interest or destination, a count of photographs that are geographically related to the point of interest or destination, and a popularity score based at least in part on the count of travel documents, the count of travel queries, and the count of photographs; and selecting a selected point of interest or destination based at least in part on the respective popularity scores.

Abstract: A data processing system receives location data points from computing devices. The system annotates the location data points with entities and determines a duration each of the computing devices was at corresponding entities. The system aggregates the location data points into a set of sequences based on the duration and the entities and stores the set of sequences in a data record. The system accesses the database record including a set of sequences generated from location data points received from computing devices. The system receives, from a computing device, a request for a location sequence that includes a query. The system identifies an attribute of the computing device. The system identifies a sequence based on the set of sequences using the query and the attribute. The system transmits the sequence for display on a display device.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for computerized travel services. One of the methods includes receiving natural feature mapping data, the natural feature mapping data representing geographic footprints of multiple natural features; receiving political feature mapping data, the political feature mapping data representing geographic footprints of multiple political features; classifying the natural features as a destination or not a destination, including: classifying at least one of the natural features as a destination based at least in part on determining that the geographic footprint of the natural feature overlaps with more than one of the geographic footprints of the political features, and storing data representing the natural features classified as a destination in a geographic data store.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for computerized travel services. One of the methods includes identifying points of interest associated with a destination by querying a geographic data store; for each of the points of interest: identifying photographs using an index of photographs, the photographs being identified from the index as photographs geographically related to the point of interest, determining for each of the photographs a relevancy score based at least in part on selection success data of the photograph for image queries referring to the point of interest and references to the point of interest in documents associated with the photograph, and selecting a selected point of interest photograph from the photographs based at least in part on a respective visual quality score and the respective relevancy scores; and selecting a selected destination photograph from the selected point of interest photographs.