Link analysis is a data-analysis technique used to evaluate relationships between nodes. Relationships can be identified among various types of nodes including organizations, people and transactions. Link analysis is used for detecting criminal activity like fraud detection, counterterrorism, and intelligence etc.
3 Primary Purposes:
- Find duel for known patterns of interests between linked objects.
- Find incongruity by detecting contravene known patterns.
- Find new patterns of interest
Why link analysis?
If there is an interesting relationship in your data, you’ll get more value in link analysis. Following are its benefit:
- INSTINCTIVE Exploring networks in form of node-link structures immediately makes sense.
- RAPID Link analysis helpful in identifying the trends and outliers quickly.
- ACCESSIBLE Simplify complication and understand in detail.
- PERCEPTIVE You can gain more knowledge and understand context.
How to Draw a Link Analysis Diagram?
- Establish Data Points
A The first step is to find what people and organizations are essential for investigation.
- Run RF Matrix Download RF Flow and click Tools, Auto Charts, and Association Matrix.
3. Enter Data Points Type data points into text box at lower left of RF Matrix program and click ADD Name.
4. Put Names in Alphabetical Order
Names will show up in list at left in order they were entered, put them in alphabetical order by clicking ALPHABETIZE. The leftmost character is used when alphabetizing names so order will be different if you enter names as “First Last” or “Last First.”
5. Add Relationships
3 association codes:
(A) Known Association
This represents strong connection. To add this to RFMatrix, click on any word in list on left. Then click on another word in top list. Go to intersection of selected items and right-click on intersection point. A menu will appear Click “Second word has known association with first.”
(B) Suspected Association
This shows a weak connection. Left-click on any name in list on left and left-click on other name in top list, right-click on intersection of selected items and choose “First NAME has suspected relationship with Second.”
(C) Key Individual
Left-click on desired Person in list on left of RFMatrix. Left-click on Particular Organisation Name in top list, right-click on intersection of selected areas and choose “Person is key individual in Organisation.”
6. Edit Names
Right-click on Incorrect Name in left list. Choose Edit Text in drop-down menu.
7. Save Matrix
Click File in main menu of RFMatrix and Save. Select folder and give matrix a name without extension.
8. Print Matrix
Click File in main menu of RFMatrix and Print. Select printer. Click Preferences to change paper orientation. Click Print.
9. Move Data to RF Flow
Run RFFlow, click Tools, Auto Charts, and Link Analysis. In Link Analysis dialog box, click round button near: The input data is saved in .txt file / comma delimited .csv file. Click Next button.
10. Create Link Analysis Diagram
In Open dialog box, choose folder to Look in: and click name of file created in Step 7. Click Open. The chart will automatically generate.
11. Edit Link Analysis Diagram
Press Down KEEP CONNECTED button, drag names and lines. Draw selection rectangle around desired name and drag it. This will move box and two circles together. Replace names with pictures by clicking Insert, Picture from File.