llama.cpp/examples/embedding/README.md

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# llama.cpp/example/embedding
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This example demonstrates generate high-dimensional embedding vector of a given text with llama.cpp.
## Quick Start
To get started right away, run the following command, making sure to use the correct path for the model you have:
### Unix-based systems (Linux, macOS, etc.):
```bash
./llama-embedding -m ./path/to/model --pooling mean --log-disable -p "Hello World!" 2>/dev/null
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```
### Windows:
```powershell
llama-embedding.exe -m ./path/to/model --pooling mean --log-disable -p "Hello World!" 2>$null
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```
The above command will output space-separated float values.
## extra parameters
### --embd-normalize $integer$
| $integer$ | description | formula |
|-----------|---------------------|---------|
| $-1$ | none |
| $0$ | max absolute int16 | $\Large{{32760 * x_i} \over\max \lvert x_i\rvert}$
| $1$ | taxicab | $\Large{x_i \over\sum \lvert x_i\rvert}$
| $2$ | euclidean (default) | $\Large{x_i \over\sqrt{\sum x_i^2}}$
| $>2$ | p-norm | $\Large{x_i \over\sqrt[p]{\sum \lvert x_i\rvert^p}}$
### --embd-output-format $'string'$
| $'string'$ | description | |
|------------|------------------------------|--|
| '' | same as before | (default)
| 'array' | single embeddings | $[[x_1,...,x_n]]$
| | multiple embeddings | $[[x_1,...,x_n],[x_1,...,x_n],...,[x_1,...,x_n]]$
| 'json' | openai style |
| 'json+' | add cosine similarity matrix |
### --embd-separator $"string"$
| $"string"$ | |
|--------------|-|
| "\n" | (default)
| "<#embSep#>" | for exemple
| "<#sep#>" | other exemple
## examples
### Unix-based systems (Linux, macOS, etc.):
```bash
./llama-embedding -p 'Castle<#sep#>Stronghold<#sep#>Dog<#sep#>Cat' --pooling mean --embd-separator '<#sep#>' --embd-normalize 2 --embd-output-format '' -m './path/to/model.gguf' --n-gpu-layers 99 --log-disable 2>/dev/null
```
### Windows:
```powershell
llama-embedding.exe -p 'Castle<#sep#>Stronghold<#sep#>Dog<#sep#>Cat' --pooling mean --embd-separator '<#sep#>' --embd-normalize 2 --embd-output-format '' -m './path/to/model.gguf' --n-gpu-layers 99 --log-disable 2>/dev/null
```