摘要:
The present invention discloses an apparatus, method and computer program for providing page navigation in a multirole-enabled network application. The apparatus comprises: a virtual role creator adapted to create a virtual role for each user in the multirole-enabled network application based upon an atomic role set configured for the user; an access pattern generator adapted to generate a virtual-role-based access pattern by recording page access requests of the user and by performing pattern mining for the recorded page access requests according to the virtual role of the user; and a page navigation provider adapted to provide page navigation by utilizing the access pattern corresponding to the virtual role of the user when the user accesses the multirole-enabled network application. With the technical solution of the invention, pattern mining can be performed for access data of one or more users according to virtual role, so the user can be provided with optimized personalized page navigation.
摘要:
The present invention discloses an apparatus, method and computer program for providing page navigation in a multirole-enabled network application. The apparatus comprises: a virtual role creator adapted to create a virtual role for each user in the multirole-enabled network application based upon an atomic role set configured for the user; an access pattern generator adapted to generate a virtual-role-based access pattern by recording page access requests of the user and by performing pattern mining for the recorded page access requests according to the virtual role of the user; and a page navigation provider adapted to provide page navigation by utilizing the access pattern corresponding to the virtual role of the user when the user accesses the multirole-enabled network application. With the technical solution of the invention, pattern mining can be performed for access data of one or more users according to virtual role, so the user can be provided with optimized personalized page navigation.
摘要:
The present invention provides a flexible, dynamic database partition method and system. The method includes the steps of acquiring a data partition rule, where the data partition rule is used to identify a first relationship between a data partition condition and a database partition; establishing a second relationship between the data partition condition and a data partition key based on the data partition rule and a third relationship between the database partition and the data partition key; adding the data partition key to a data item where the data item is stored in the database based on the second relationship between the data partition condition and the data partition key; and storing the data item in the database partition based on the data partition key of the data item.
摘要:
A method, system and computer program for processing materialized tables in a multi-tenant application system, wherein in the multi-tenant application system, a plurality of tenants share one or more basic-tables. According to the data access history information of the plurality of tenants, an update pattern analyzer analyzes the similarity of the update patterns for one or more basic-tables by the plurality of tenants. Furthermore, according to the similarity analyzed by the update pattern analyzer, a tenant grouping means groups the plurality of tenants into a plurality of tenant groups. Additionally, according to the tenant groups grouped by the tenant grouping means, a materialized table constructor constructs the tenant group materialized tables from the one or more basic-tables.
摘要:
A method and system for processing database operation requests, the method comprising: receiving a database operation request from a user; determining whether the database operation request is a heavy-duty request; if the database operation request is a heavy-duty request, routing the database operation request to a heavy-duty request database partition for processing heavy-duty requests to be processed, and recording the data scope affected by the database operation request into a metadata repository, wherein the heavy-duty request database partition is set besides an original normal database partition.
摘要:
A method and system for processing database operation requests, the method comprising: receiving a database operation request from a user; determining whether the database operation request is a heavy-duty request; if the database operation request is a heavy-duty request, routing the database operation request to a heavy-duty request database partition for processing heavy-duty requests to be processed, and recording the data scope affected by the database operation request into a metadata repository, wherein the heavy-duty request database partition is set besides an original normal database partition.
摘要:
The present invention provides a flexible, dynamic database partition method and system. The method includes the steps of acquiring a data partition rule, where the data partition rule is used to identify a first relationship between a data partition condition and a database partition; establishing a second relationship between the data partition condition and a data partition key based on the data partition rule and a third relationship between the database partition and the data partition key; adding the data partition key to a data item where the data item is stored in the database based on the second relationship between the data partition condition and the data partition key; and storing the data item in the database partition based on the data partition key of the data item.
摘要:
A method, system and computer program for processing materialized tables in a multi-tenant application system, wherein in the multi-tenant application system, a plurality of tenants share one or more basic-tables. According to the data access history information of the plurality of tenants, an update pattern analyzer analyzes the similarity of the update patterns for one or more basic-tables by the plurality of tenants. Furthermore, according to the similarity analyzed by the update pattern analyzer, a tenant grouping means groups the plurality of tenants into a plurality of tenant groups. Additionally, according to the tenant groups grouped by the tenant grouping means, a materialized table constructor constructs the tenant group materialized tables from the one or more basic-tables.
摘要:
A method and apparatus for adjusting wheel diameter by acquiring a current wheel diameter distribution vector; calculating similarity scores between the current wheel diameter distribution vector and known wheel diameter distribution vector clusters to determine a potential wear rate of the current wheel diameter distribution vector; calculating similarity scores between candidate target wheel diameter distribution vectors and the known wheel diameter distribution vector clusters to determine a potential wear rates of the candidate target wheel diameter distribution vectors; and selecting a target wheel diameter distribution vector from the candidate target wheel diameter distribution vectors, such that the reduction of potential wear rate achieved by switching the current wheel diameter distribution vector to the target wheel diameter distribution vector meets a predetermined condition. Future potential wear rates and the amount of grinding required during train maintenance can be optimized through changing wheel diameter distribution vectors.
摘要:
A method for tuning a parameter of a Kalman filter in a wheel inspection for a vehicle. The method includes: associating wheel inspection data of the vehicle with locations of wheels in the vehicle; evaluating a wheel stable score of the vehicle based on the wheel inspection data and the association, wherein the wheel stable score indicates reliability of the wheel inspection; and tuning measurement error covariance of the Kalman filter according to the evaluated wheel stable score. By using the method, the parameter of the Kalman filter can be dynamically tuned to enable the Kalman filter to filter more accurately to ensure the correct result of the wheel inspection. In addition, an apparatus for tuning a parameter of a Kalman filter and a wheel inspection system for a vehicle are disclosed.