公开(公告)号：US20210182732A1

公开(公告)日：2021-06-17

申请号：US16714070

申请日：2019-12-13

Applicant: SAP SE

Inventor： Yang Peng

IPC: G06N20/00 ,  G06N5/04

Abstract: Calls received by a data center that are associated with a request are monitored. Features are subsequently extracted from the monitored calls so that a machine learning model may use such features to determine that the request will cause the data center to malfunction. The machine learning model can be trained using data derived from a transaction log for the data center. At least one correction action to prevent the data center from malfunctioning can then be initiated in response to such determination. Related apparatus, systems, techniques and articles are also described.

公开(公告)号：US20180300189A1

公开(公告)日：2018-10-18

申请号：US15490193

申请日：2017-04-18

Applicant: SAP SE

Inventor： Yang Peng ,  Xia Yu

IPC: G06F9/54 ,  G06F9/44

Abstract: In one aspect there is provided a method. The method may include: executing, at a client, an application that includes a first function and a second function; determining, based at least on an indicator, that the first function is to be executed locally at the client and the second function is to be executed remotely at a server; generating a package that includes a first class definition of a first class, the first class definition being required for executing the second function based at least on the second function including a reference to the first class; and sending, to the server, the package to at least enable the server to execute the second function. Systems and articles of manufacture, including computer program products, are also provided.

公开(公告)号：US11188661B2

公开(公告)日：2021-11-30

申请号：US16218036

申请日：2018-12-12

Applicant: SAP SE

Inventor： Yang Peng

IPC: G06F21/60 ,  G06F21/62 ,  H04L29/06 ,  G06F16/22 ,  G06F16/9535

Abstract: Described herein includes a permission management system that optimizes determination of whether a user has permission to perform an operation using an attribute table. The system may include a permission processor for: determining whether the requesting user has permission to perform the operation, the determining including: generating an attribute table comprising the one or more target users and one or more user attributes, the one or more user attributes comprising metadata associated with the one or more target users; storing the attribute table on the database; generating a reduced attribute table, the generating comprising removing one or more target users from the attribute table; and applying the one or more permission rules to each of the target users remaining in the reduced attribute table.

公开(公告)号：US11537943B2

公开(公告)日：2022-12-27

申请号：US16714070

申请日：2019-12-13

Applicant: SAP SE

Inventor： Yang Peng

IPC: G06N20/00 ,  G06N5/04 ,  H04M3/22 ,  G06N5/00 ,  G06N20/10 ,  G06N20/20

Abstract: Calls received by a data center that are associated with a request are monitored. Features are subsequently extracted from the monitored calls so that a machine learning model may use such features to determine that the request will cause the data center to malfunction. The machine learning model can be trained using data derived from a transaction log for the data center. At least one correction action to prevent the data center from malfunctioning can then be initiated in response to such determination. Related apparatus, systems, techniques and articles are also described.

公开(公告)号：US11455304B2

公开(公告)日：2022-09-27

申请号：US16577828

申请日：2019-09-20

Applicant: SAP SE

Inventor： Yang Peng

IPC: G06F16/2453 ,  G06F12/0891 ,  G06F16/955 ,  G06F16/901 ,  G06F16/2455

Abstract: A predictive cache system learns data access patterns to build a graph of related data items. A main cache hosted by a cache server is accessed by a cache client having a local cache. A request to the cache server for one of the related data items generates a response including some or all of the related data items, which are stored in the local cache and can be served locally for subsequent requests. Predictive cache behavior coexists with legacy non-predictive cache operation. Load on the cache server and aggregate latency are considerably reduced. Graphs can be specific to a particular context. Locally cached content can be distributed and reused by other cache clients. The predictive cache system is suitable for large-scale web applications. Variations are described.

公开(公告)号：US11301221B2

公开(公告)日：2022-04-12

申请号：US16714101

申请日：2019-12-13

Applicant: SAP SE

Inventor： Yang Peng

IPC: G06F9/44 ,  G06F8/41 ,  G06F8/36 ,  G06F8/71 ,  G06F9/445 ,  G06F9/455

Abstract: Compilation is initiated of previously-compiled code in which only a subset of the previously-compiled code was modified since a previous compilation. Thereafter, modified code corresponding to the subset of the previously-compiled code that was modified since the previous compilation is identified. Further, dependent code within the previously-compiled code that is dependent on the modified code is also identified. Using this information, only the identified modified code and the dependent code can be compiled. In some variations, at least a portion of the other parts of the previously-compiled code can be reused. Related apparatus, systems, techniques and articles are also described.

公开(公告)号：US11275812B2

公开(公告)日：2022-03-15

申请号：US16666201

申请日：2019-10-28

Applicant: SAP SE

Inventor： Yang Peng

IPC: G06F16/958 ,  G06F16/957 ,  G06F16/955

Abstract: Each of a plurality of resource files can be instrumented. Thereafter, usage data of the received files is received from a plurality of clients each executing a different instance of a web application. The usage data comprises is collected by the instances of the web application when being used by a respective one of a plurality of users. A dependencies list is then generated for the resource files based on the received usage data. In addition, a priorities list is generated for the resource files using the received usage data which indicates how frequently the resource files are being used. Further, groups of resource files are generated based on co-occurrence levels of the resource files in the dependencies list and the priorities list. Later, at least a portion of the groups of resource files are transmitted to the client for caching in a local cache pool. Related apparatus, systems, techniques and articles are also described.

公开(公告)号：US20210089452A1

公开(公告)日：2021-03-25

申请号：US16577828

申请日：2019-09-20

Applicant: SAP SE

Inventor： Yang Peng

IPC: G06F12/0813 ,  G06F12/0891 ,  G06F12/084 ,  G06F12/0811 ,  G06F12/0815 ,  G06F16/901 ,  G06F16/955

Abstract: A predictive cache system learns data access patterns to build a graph of related data items. A main cache hosted by a cache server is accessed by a cache client having a local cache. A request to the cache server for one of the related data items generates a response including some or all of the related data items, which are stored in the local cache and can be served locally for subsequent requests. Predictive cache behavior coexists with legacy non-predictive cache operation. Load on the cache server and aggregate latency are considerably reduced. Graphs can be specific to a particular context. Locally cached content can be distributed and reused by other cache clients. The predictive cache system is suitable for large-scale web applications. Variations are described.

公开(公告)号：US10719431B2

公开(公告)日：2020-07-21

申请号：US16223414

申请日：2018-12-18

Applicant: SAP SE

Inventor： Yang Peng ,  Yueling Wang ,  Jieying Zhang ,  Yunfeng Jiang ,  Junshan Xu

IPC: G06F11/36 ,  G06F16/904 ,  G06F9/445 ,  G06F8/77

Abstract: Techniques are described for graph based code performance analysis of software, such as software that is being developed and tested in a development environment. Implementations provide a technique for instrumenting code by adding various annotations into the code. Each annotation may be a function call that executes with the annotated code, but does not alter the behavior and/or functionality of the annotated code apart from outputting call tracking information during execution. The call tracking information generated by annotations can be analyzed to generate a call graph that depicts calling relationships between functions in the code. The call graph can be presented within a user interface and/or automatically analyzed to develop recommendations regarding code coverage for testing, impact information describing how changes to one function impact another function, code optimization recommendations, and so forth.

公开(公告)号：US20180300224A1

公开(公告)日：2018-10-18

申请号：US15490482

申请日：2017-04-18

Applicant: SAP SE

Inventor： Yang Peng ,  Yunfeng Jiang ,  Junshan Xu ,  Yueling Wang

IPC: G06F11/36

CPC classification number: G06F11/3676 ,  G06F11/368

Abstract: Some embodiments provide a program that collects a set of call stack data associated with a set of test cases executed on an application. The program further generates a set of call graphs based on the set of call stack data. Each call graph in the set of call graphs includes a set of nodes representing a set of functions in the application executed in the corresponding test case in the set of test cases. The program also determines, for each call graph in the set of call graphs, a set of short paths and a set of short sequences in the call graph. The program further receives a notification indicating a modification to a function in the application. The program also determines a subset of the set of test cases to test the modification to the function based on the sets of short paths and the sets of short sequences in the set of call graphs.