公开(公告)号：US20240202179A1

公开(公告)日：2024-06-20

申请号：US18544098

申请日：2023-12-18

Applicant: DASSAULT SYSTEMES

Inventor： Eric VALLET GLENISSON ,  Jean-Philippe SAHUT D'IZARN

IPC: G06F16/22 ,  G06F16/2453 ,  G06F16/2455

CPC classification number: G06F16/2246 ,  G06F16/2453 ,  G06F16/24557

Abstract: A computer-Implemented method of storing RDF graph data in a graph database including a set of RDF tuples. The method includes obtaining one or more adjacency matrices wherein each adjacency matrix represents a group of tuples of the graph database comprising a same predicate. The method further includes storing, for each of the one or more adjacency matrices, a data structure includes an array. The array includes one or more indices each pointing to a sub-division of the adjacency matrix, and/or one or more elements each representing a group of tuples of the RDF graph database of a respective sub-division of the adjacency matrix.

公开(公告)号：US20220197885A1

公开(公告)日：2022-06-23

申请号：US17554910

申请日：2021-12-17

Applicant: DASSAULT SYSTEMES

Inventor： Jean-Philippe SAHUT D'IZARN ,  Eric VALLET GLENISSON ,  Frederic LABBATE

IPC: G06F16/22 ,  G06F16/23

Abstract: A computer-implemented method for storing a database state. The method comprises providing a database, receiving by the database one or more write events, logging each write event, each logged write event thus forming a new state on the database, buffering pages modified or created by the write events, and creating a patch by flushing to a database storage the buffered pages if a threshold has been met.

公开(公告)号：US20220197759A1

公开(公告)日：2022-06-23

申请号：US17557159

申请日：2021-12-21

Applicant: DASSAULT SYSTEMES

Inventor： Jean-Philippe SAHUT D'IZARN ,  Eric VALLET GLENISSON ,  Frédéric LABBATE ,  Alban ROULLIER

IPC: G06F11/14 ,  G06F16/21

Abstract: A computer implemented method for creating a tree of database states including accessing a database having at least one branch of database states, receiving at the database one or more write events that are applied to an identified state of the database, recovering the identified database state from the database, creating a new branch by creating a new patch as alternative state to the identified database state with a reference to the identified state.

公开(公告)号：US20240202191A1

公开(公告)日：2024-06-20

申请号：US18544175

申请日：2023-12-18

Applicant: DASSAULT SYSTEMES

Inventor： Jean-Philippe SAHUT D'IZARN ,  Frédéric LABBATE ,  Alban ROULLIER ,  Eric VALLET GLENISSON

IPC: G06F16/2453 ,  G06F16/901

CPC classification number: G06F16/24537 ,  G06F16/24539 ,  G06F16/9024

Abstract: A computer-implemented method for querying by a query engine on a database including relational data and graph data, the method including receiving a query by the query engine, the query being in a language compatible with a first order logic paradigm. The method further includes generating an intermediate representation, the IR being compatible with a first order logic paradigm. The method further includes using the intermediate representation of the query for executing the query on the relational data and the graph data of the database.

公开(公告)号：US20240184827A1

公开(公告)日：2024-06-06

申请号：US18531262

申请日：2023-12-06

Applicant: DASSAULT SYSTEMES

Inventor： Eric VALLET GLENISSON ,  Alexandra DENIAUD ,  Frédéric LABBATE ,  Alban ROULLIER

IPC: G06F16/901 ,  G06F16/2458

CPC classification number: G06F16/9024 ,  G06F16/2471

Abstract: A computer-implemented method for generating a summary of a graph database comprising a set of RDF tuples including obtaining the graph database and generating a summary having a set of probabilistic filters. Each probabilistic filter of the set determines if at least one RDF tuple existing in the graph database corresponds to a respective basic graph pattern of the probabilistic filter with a possibility of false positive.