Abstract: To restore consistency of a digital twin database, identifiers with metadata imported from various data sources are processed by an encoder, which computes latent representations of the identifiers that are compared by an efficient similarity metric. If the respective similarity score exceeds a threshold, a match is detected between the identifiers. In that case, the digital twin database is updated by aligning the first identifier and the second identifier. This matching algorithm for equipment identifiers updates the digital twin data automatically and continuously by aligning identifiers which refer to the same piece of equipment. The updates flow directly into the digital twin database, thereby removing the manual effort. Using approximate nearest neighbor methods is highly efficient, especially for large plants. The encoder is implemented as an autoencoder which relies only on unlabeled training data.

Abstract: Provided is a computer-implemented method for receiving the at least two log files; wherein each log file of the at least two log files includes at least one log entry with at least one time stamp and at least one message; wherein the at least two log files differ from one another with respect to at least one distinctive criteria; extracting at least one additional information of each log file of the at least two log files; and combining each log file of the at least two log files with the extracted additional information into at least two processed log files; wherein the at least two processed log files comply with a coherent representation. A corresponding computer program product and generating unit is also provided.

Abstract: A computer-implemented method for determining a denoised named entity recognition (NER)-model and denoised relation extraction (RE)-model. A computer-implemented method for propagating an input dataset into a graph database representation, a computing unit and a computer program product, is also provided.

Abstract: A method for integrating data from different data sources into a knowledge graph storage unit including: transferring data from different data sources into a receiving and extraction module of an extraction-transformation-loading, ETL, data pipeline framework; (b) extracting the loaded data using an extraction data frame and transferring the extracted data to a transformation module; (c) transforming the extracted data using transformation functionalities and transferring the transformed data to a mapping module; (d) mapping the transformed data using mapping rule functionalities and transferring the mapped data to a post-processing module; (e) post-processing the mapped data using a library and transferring the post-processed data to a loading module; and (f) loading the processed data by the loading module to the knowledge graph storage unit; wherein the mapping module uses a JSON-based mapping notation to convert the transformed data into a serialized form, is provided.

Abstract: Provided is a computer-implemented method for generating automatically annotations for tabular cell data of a table having column and rows, wherein the method includes: supplying raw cell data of cells of a row of the table as input to an embedding layer of a semantic type annotation neural network which transforms the received raw cell data of the cells of the supplied row into cell embedding vectors; processing the cell embedding vectors to calculate attentions among the cells of the respective row of the table encoding a context within the row output as cell context vectors; and processing the cell context vectors generated by the self-attention layer by a classification layer of the semantic type annotation neural network to predict semantic column type annotations and/or to predict relations between semantic column type annotations for the columns of the table.

Abstract: Provided is a Computer-implemented method for Receiving the at least two log files; wherein each log file of the at least two log files includes at least one log entry with at least one time stamp and at least one message; wherein the at least two log files differ from one another with respect to at least one distinctive criteria; Extracting at least one additional information of each log file of the at least two log files; and Combining each log file of the at least two log files with the extracted additional information into at least two processed log tiles; wherein the at least two processed log files comply with a coherent representation. Further, the invention relates to a corresponding computer program product and generating unit.