Related Experiment Video
Updated: Dec 1, 2025
11:52
Temporal Ordering of Dynamic Expression Data from Detailed Spatial Expression Maps
Published on: February 9, 2017
6.2K
A comparative analysis for spatio-temporal spreading patterns of emergency news
Mingjiao Si1,2, Lizhen Cui3,4, Wei Guo1,2
1School of Software, Shandong University, Jinan, 250101, China.
Scientific Reports
|November 11, 2020
Summary
Emergency news spreads faster and has a shorter life cycle online compared to other news types. User influence has minimal impact on emergency news propagation, offering insights for disaster relief communication.
Area of Science:
- Information Science
- Communication Studies
- Network Science
Background:
- Effective emergency management relies on understanding online news propagation.
- Current research often focuses on single disaster events, limiting generalizable insights.
- Analyzing large-scale repost data can reveal broader patterns in emergency information dissemination.
Purpose of the Study:
- To quantify general spreading patterns and dynamic evolution of emergency news online.
- To compare emergency news propagation with political, social, tech, and entertainment news.
- To identify unique characteristics of emergency news diffusion.
Main Methods:
- Developed a systematic evaluation framework for analyzing online information spread.
- Applied the framework to 81 million reposts from Sina Weibo, a major Chinese microblogging platform.
- Conducted a comparative analysis against four other news categories.
Main Results:
- Emergency news exhibits shorter lifecycles, active periods, and fewer post-peak fluctuations.
- Propagation of emergency news is generally shallow, limited to a few steps from the source.
- User influence (fan count) has the least impact on reposts for emergency news compared to other categories.
Conclusions:
- Emergency news diffusion differs significantly from other online content types.
- Findings offer valuable insights for optimizing disaster relief and emergency management communication strategies.
- The study provides a foundation for improved communication path prediction in crisis situations.
Related Concept Videos
01:29Applications of GIS: Disaster Management and Emergency Response
307
Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...
307
01:18Steps in Outbreak Investigation
377
In the ever-evolving field of public health, statistical analysis serves as a cornerstone for understanding and managing disease outbreaks. By leveraging various statistical tools, health professionals can predict potential outbreaks, analyze ongoing situations, and devise effective responses to mitigate impact. For that to happen, there are a few possible stages of the analysis:
377
01:21Manipulation and Analysis
191
GIS manipulation and analysis functions are vital for decision-making and planning. These activities range from data retrieval tasks, such as selecting information based on specific criteria, to advanced analytical techniques that address complex spatial problems.One critical GIS analysis method is overlaying, which combines multiple data layers to examine impacts. For example, overlaying a river-dammed lake boundary with road networks can identify affected infrastructure. Another common...
191
01:25Selected Data About Geographic Locations
164
Geographic Information Systems (GIS) rely on two core types of data: spatial data and attribute data.Spatial DataSpatial data defines the physical location of features within a coordinate system, typically expressed in terms of latitude and longitude. It provides precise positioning for elements like roads, rivers, or buildings.Attribute DataAttribute data complements spatial data by adding descriptive information about these features. For example, a road's spatial data includes its start and...
164
01:08The Availability Heuristic
6.8K
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):
6.8K
01:10Dual Nature of Electromagnetic (EM) Radiation
3.3K
Electromagnetic (EM) radiation consists of electric and magnetic field components oscillating in planes perpendicular to each other and mutually perpendicular to radiation propagation through space. EM radiation can be classified as a wave, characterized by the properties of waves such as wavelength (denoted as λ) and frequency (represented by ν).
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the number of...
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the number of...
3.3K