3results about How to "Guaranteed difference" patented technology

The application discloses a method and device for constructing a gradient boosting decision tree (GBDT) model, and relates to the technical field of machine learning, and mainly aims to solve the problem of low accuracy of the existing trained decision tree model. The main technical scheme of the application is as follows: obtaining a sample data set, wherein the sample data set comprises positive sample data with positive labels and unlabeled sample data without labels; when training each regression tree of the GBDT model, a positive sample training subset is constructed based on the positive sample data in the sample data set, a negative sample training subset is constructed by sampling the unlabeled sample data in the sample data set, the positive sample training subset and the multiple negative sample training subsets are combined to obtain a training set of the current regression tree, the current regression tree is trained based on the training set of the current regression tree, and a GBDT model is constructed according to each regression tree. The application is used in the construction process of the GBDT.

The invention provides a page template processing method and device, electronic equipment and a storage medium. The method can be applied to vehicle-mounted scenes and map scenes; the method comprises the following steps: displaying a human-computer interaction interface; in response to a component selection operation in the human-computer interaction interface, obtaining a plurality of page components; in response to a template selection operation in the human-computer interaction interface, at least one page template is obtained, and the page template comprises a plurality of component positions; a trigger operation is generated in response to a template in the human-computer interaction interface, the server is triggered to cluster the multiple page components into multiple combinations, each combination comprises different types of page components, each type in the combinations corresponds to one page component, and the page components in each combination are stored in the server. And inserting a component position having a matching relationship with the page component in the page template to obtain a derived template corresponding to each combination. According to the method and the device, diversified page templates are efficiently generated.