Missing link prediction and spurious link detection based on attractive force and community.
1School of Economics and Management, Harbin Engineering University, Harbin, China.
Science Progress
|May 21, 2021
Summary
This study introduces a novel network link prediction method to identify both missing and spurious links. The approach achieves higher accuracy and stability in real-world network analysis.
Area of Science:
- Network Science
- Information Technology
- Data Analysis
Background:
- Networks are crucial for global information diffusion, but increasing data scale poses challenges for link accuracy and completeness.
- Traditional link prediction methods often focus solely on missing links, neglecting spurious ones.
Purpose of the Study:
- To propose a novel link prediction approach that addresses both missing and spurious links in networks.
- To enhance the accuracy and reliability of network structure analysis.
Main Methods:
- Defining an 'attractive force' between node pairs to quantify relationship strength.
- Community detection based on node degrees and attractive forces.
- Calculating 'connection probability' for unconnected nodes to predict missing links.
- Calculating 'break probability' for connected nodes to detect spurious links.
Main Results:
- The proposed method effectively predicts missing links by analyzing connection probabilities.
- Spurious links are identified by evaluating break probabilities between connected nodes.
- Experimental results on real-world networks demonstrate superior prediction accuracy and stable performance over existing methods.
Conclusions:
- The novel approach offers a comprehensive solution for network link prediction, handling both missing and spurious links.
- The method provides a more accurate and stable way to analyze and understand complex network structures.
More Related Videos
Related Concept Videos
Ligand Binding and Linkage
5.2K
Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked. In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence...
5.2K
Ligand Binding and Linkage
3.7K
3.7K
Conserved Binding Sites
4.7K
Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
4.7K
Factors Influencing Attraction III: Similarity
66
The similarity hypothesis suggests that individuals are more likely to form relationships with others who share similar attitudes, beliefs, values, and interests. This concept has been widely studied in social psychology, demonstrating that perceived similarity fosters interpersonal attraction. In an experiment supporting this hypothesis, participants were presented with fabricated information indicating that strangers held attitudes similar to their own. The results showed that participants...
66
Protein Networks
4.2K
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
4.2K
Protein-protein Interfaces
14.1K
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
14.1K


