Chapter 9 Tags and Classification

This chapter explains how to filter files with tags and how to manage file type classification in Settings.

9.1 Purpose of Tags and Classification

Tags and classification in AIClue are mainly used to narrow the file scope and help you find target files faster.

Common uses include:

• Filter by file type, such as documents, images, videos, or archives
• Narrow search results by existing tags
• Exclude tag ranges you do not want to see
• Adjust the relationship between file types and extensions

Tags and classification only affect display, filtering, and search scope in AIClue. They do not modify source files.

9.2 Filter Files by Tags

Tag filter entries usually appear in the top bar or the file list header. After opening the filter panel, you can choose tag ranges to include or exclude.

Common operations include:

Tag filtering can be used together with keyword search and directory filtering. For example, you can search contract first, then view only document files within the results.

9.3 Include and Exclude

Tag filtering supports two directions:

• Include: Show only files that meet the condition
• Exclude: Hide files that meet the condition

Hold Shift and click a tag to set that tag as an exclusion condition. Click a selected condition again to cancel that filter.

If multiple conditions are set at the same time, the file list refreshes according to the current combination. Too many filters may result in very few or no results. In that case, clear filters first, then add conditions gradually.

9.4 File Type Classification

File type classification decides which category certain extensions belong to in AIClue. For example, some video extensions can belong to Video, while some spreadsheet extensions can belong to Documents or another custom category.

Entry path:

1. Open Settings
2. Go to File Types
3. View or adjust categories and extension bindings

9.5 Add and Adjust Classifications

On the File Types page, you can add or adjust classifications as needed.

Common operations include:

Some built-in system categories may not be renameable or deletable. This prevents common file types from being classified incorrectly.

9.6 Bind Extensions

Click a file type item to edit the extensions bound to it. Separate multiple extensions with commas.

For example, a Video type can bind:

mp4, avi, mkv

After saving, newly scanned files are classified according to the new extension rules. For files that have already been recorded, if the classification display does not change, rescan the related directories in Directory Management.

9.7 Usage Tips

• If you are unsure about classification rules, use the default settings first.
• Add custom classifications only when truly needed, to avoid making filtering difficult.
• Before changing extension bindings, make sure the extension does not include a dot. Write pdf, not .pdf.
• If a type of file is often hard to find, check whether its extension is bound to a suitable classification.

9.8 Use with Search and Directory Filtering

Tags and classification are usually used with search and directory filtering:

1. Enter a keyword first to find the rough result set
2. Use directory filtering to narrow the location scope
3. Use tags or file type filters to narrow results further

If there are too few results, remove filter conditions one by one to identify which condition is limiting the results.

9.9 Next Steps

After you are familiar with tags and classification, continue with:

• Chapter 10 Finding Duplicate Files: Learn how to identify and handle duplicate files
• Chapter 12 Settings and Maintenance: Learn more settings and maintenance entries
• Appendix Supported File Formats and Data Notes: View file type support scope