In the present day, Traditional database management methods are becoming more
inadequate for effective data processing as the volume of data created by systems grows …

Query planning is essential for graph query execution performance. In distributed graph
processing, data partitioning and messaging significantly influence performance. However …

Join query optimization aims to find the best join order for tables in a query, which is critical
for query processing performance. Recently, reinforcement learning models have been …

Query optimization involves identifying and implementing the most effective and efficient
methods and strategies to enhance the performance of queries. This is achieved by …

Graph pattern matching queries enable flexible graph exploration, similar to what SQL
provides for relational databases. In this thesis, we design and improve key compo-nents of …

Power equipment operation and maintenance has accumulated a large amount of
knowledge recorded in the form of text, which provides the basis for power equipment …