Meng He

Fast Preprocessing for Optimal Orthogonal Range Reporting and Range Successor with Applications to Text Indexing

2020 · arXiv (Cornell University)

Under the word RAM model, we design three data structures that can be constructed in $O(n\sqrt{\lg n})$ time over $n$ points in an $n \times n$ grid. The first data structure is an $O(n\lg^ε n)$-word …

Safety Monitoring Twin System for Three Major Building Super-Large Excavation Pits Based on Internet of Things Technology

2024 · Industrial Construction

With the rapid development of economy and urbanization, the scale and number of super-large excavation pit projects have surged. However, the construction of super-large underground space structure is faced with challenges such as complex underground …

CJE-PCHF: Chinese Joint Entity and Relation Extraction Model Based on Progressive Contrastive Learning and Heterogeneous Feature Fusion

2024 · Applied Sciences

The joint extraction of entities and relations is a critical task in information extraction, and its performance directly affects the performance of downstream tasks. However, existing joint extraction models based on deep learning exhibit weak …