5 results about "Temporal expressions" patented technology

The invention discloses a Chinese electronic medical record data processing method and system based on a large language model. The method comprises the following steps: acquiring a Chinese electronic medical record, and performing data preprocessing to obtain a preprocessed Chinese electronic medical record; inputting the preprocessed Chinese electronic medical record into a multi-agent based on the fine-tuned large language model, and combining the multi-agent with the input data according to different processing tasks of the multi-agent to obtain a first cue word; retrieving a medical extraction knowledge base according to the first cue word to obtain corresponding medical knowledge, and combining the first cue word to obtain a second cue word; each agent calls the fine-tuned large language model according to the corresponding second cue word, information extraction and standardization processing are carried out, and extracted medical information is output. According to the method, the accuracy of medical entity and attribute extraction can be improved, combined extraction of complex medical entities and attributes thereof is achieved, standardized mapping of medical terms and time expressions is completed, and the term ambiguity and fuzzy time analysis problems are solved.

The application discloses a Web-based disaster monitoring and early warning spatio-temporal process dynamic evolution visualization method, and specifically comprises the following steps: constructing an expression model to describe disaster component elements and disaster processes as the basis for constructing a disaster spatio-temporal expression ontology, then taking the expression ontology as the top-level guide for constructing a knowledge graph, extracting specific knowledge from a large number of real three-dimensional models to construct a disaster knowledge graph, and designing a disaster data self-adaptive organization mode and a visualization data scheduling optimization mechanism to improve the compactness and relevance of data in a Web partition. The expression model and the disaster knowledge graph enable the computer to understand disaster elements and the multidimensional relationship between them, thereby realizing dynamic adjustment and optimization of three-dimensional data, effectively reducing the overhead of complex disaster scene loading and rendering, and realizing high-fluency and low-time-consumption three-dimensional display of disaster spatio-temporal process dynamic evolution.

This invention discloses a method for constructing, querying, and maintaining a time-bucket-based dual-temporal RDF block list index, belonging to the field of semantic web temporal data management technology. The invention first performs dictionary encoding, timestamp standardization conversion, and differential encoding compression on the dual-temporal RDF quintuples; then, it dynamically determines the time bucket granularity through a sliding window to achieve balanced partitioning of temporal data and eliminate empty buckets; it constructs a two-layer auxiliary index of existing bitmaps and changing bitmaps to achieve fast query pruning and block acceleration; based on the bitmap, it constructs a three-layer temporal block list core index adapted to SPO / POS / OSP modes; it uses a localization strategy to complete index addition, deletion, modification, and maintenance, and during queries, it achieves precise retrieval through time bucket pruning, bitmap filtering, and block list. This invention supports queries in all scenarios including no temporality, single temporality, and dual temporality, with dual-temporal path query time consistently below 5ms. It has advantages such as efficient index construction, low maintenance cost, strong data adaptability, and standardized temporal expression, making it suitable for efficient storage and query management of large-scale dual-temporal RDF data.

A method and device for processing temporal expressions from unstructured texts for filling a knowledge database. A temporal expression in a text is determined. A type of the temporal expression is determined as a function of the text. The temporal expression and the type are mapped on a prediction of a value of the temporal expression in a context-free representation of the temporal expression.

This invention discloses a method and system for generating medical ward round records based on a large language model. Specifically, it includes: transcribing the speech of a doctor-patient ward round to generate initial speech text containing speaker identifiers; inputting the text into a first processing agent for preprocessing, including terminology standardization, temporal expression standardization, and preliminary semantic normalization; inputting the preprocessing results along with patient medical data into a second generation agent; constructing structured prompts through the synergistic effect of long-term and short-term memory; and calling a large language model fine-tuned from the medical corpus for semantic reconstruction to generate a structured ward round record; establishing a cross-stage consistency constraint mechanism between terminology standardization, temporal expression standardization, and semantic reconstruction; verifying entity association paths in the generated results using a knowledge graph; and generating a consistency feedback signal. The feedback signal is then sent back to the first processing agent and the second generation agent for iterative correction.