Related Experiment Video
Updated: Jul 17, 2026
07:50
A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts
Published on: September 20, 2018
Handling implicit and uncertain temporal information in medical text
Li Zhou1, Simon Parsons, George Hripcsak
1Department of Biomedical Informatics, Columbia University, New York, NY, USA.
AMIA ... Annual Symposium Proceedings. AMIA Symposium
|January 24, 2007
Summary
This study introduces a novel method for extracting implicit temporal information from medical texts. The system addresses challenges like temporal resolution and uncertainty using advanced linguistic analysis techniques.
Area of Science:
- Natural Language Processing
- Medical Informatics
- Computational Linguistics
Background:
- Medical texts contain crucial temporal information vital for clinical decision-making.
- Extracting implicit temporal relationships remains a significant challenge in biomedical natural language processing.
Purpose of the Study:
- To develop a robust method for discovering implicit temporal assertions in medical literature.
- To address inherent complexities such as temporal resolution, granularity, vagueness, and uncertainty.
Main Methods:
- Utilizing discourse analysis, semantic analysis, and syntactic analysis.
- Developing heuristic rules based on domain-specific and linguistic knowledge.
- Implementing a prototype system for automated temporal information extraction.
Main Results:
- Successfully identified implicit temporal assertions within medical text.
- Demonstrated a systematic approach to handle temporal information challenges.
- The prototype system provides a foundation for more sophisticated temporal reasoning.
Conclusions:
- The proposed method effectively extracts implicit temporal data from medical texts.
- Advanced linguistic and heuristic approaches can overcome temporal information complexities.
- This work contributes to improved information retrieval and knowledge discovery in medicine.
Related Concept Videos
01:08The Availability Heuristic
A heuristic is a general problem-solving framework (Tversky & Kahneman, 1974). You can think of these as mental shortcuts that are used to solve problems. Different types of heuristics are used in different types of situations, and the impulse to use a heuristic occurs when one of five conditions is met (Pratkanis, 1989):
01:30Guidelines for Nursing Documentation I
Quality documentation and reporting share essential characteristics that ensure they are practical and valuable resources for those who use them. These characteristics are:
Factual:
The following points emphasize the significance of upholding accurate and unbiased documentation in healthcare.
Factual:
The following points emphasize the significance of upholding accurate and unbiased documentation in healthcare.
01:29Issues And Trends In Healthcare Delivery System
The issues and trends in healthcare delivery are constantly changing. The COVID-19 pandemic is one recent issue that wreaked havoc on healthcare systems, causing a shortage of healthcare workers, high demand for medicines and supplies, and increased medical expenditure due to a lack of insurance. Other issues include rising healthcare costs and care fragmentation.
Cost Containment
Payment for healthcare services has historically promoted adoption of costly and often unnecessary or inefficient...
Cost Containment
Payment for healthcare services has historically promoted adoption of costly and often unnecessary or inefficient...
01:19Assessing Body Temperature - Temporal Artery
Here is a stepwise guide to assessing the body temperature at the temporal artery using a temporal artery thermometer
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's forehead...
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's forehead...
01:26Methods of Documentation II: POMR
The Problem-Oriented Medical Record (POMR) revolutionized medical record-keeping by introducing a systematic approach focusing on the patient's problems rather than merely listing symptoms. Dr. Lawrence Weed's introduction of this method in the 1960s marked a significant advancement in medical documentation. The POMR framework consists of four key components: the database, problem list, plan of care, and progress notes.
01:18Introduction To Survival Analysis
Survival analysis is a statistical method used to study time-to-event data, where the "event" might represent outcomes like death, disease relapse, system failure, or recovery. A unique feature of survival data is censoring, which occurs when the event of interest has not been observed for some individuals during the study period. This requires specialized techniques to handle incomplete data effectively.
The primary goal of survival analysis is to estimate survival time—the time until a...
The primary goal of survival analysis is to estimate survival time—the time until a...