mirror of
https://github.com/hwchase17/langchain
synced 2024-11-08 07:10:35 +00:00
63aa28e2a6
### Summary
Allows users to pass in `**unstructured_kwargs` to Unstructured document
loaders. Implemented with the `strategy` kwargs in mind, but will pass
in other kwargs like `include_page_breaks` as well. The two currently
supported strategies are `"hi_res"`, which is more accurate but takes
longer, and `"fast"`, which processes faster but with lower accuracy.
The `"hi_res"` strategy is the default. For PDFs, if `detectron2` is not
available and the user selects `"hi_res"`, the loader will fallback to
using the `"fast"` strategy.
### Testing
#### Make sure the `strategy` kwarg works
Run the following in iPython to verify that the `"fast"` strategy is
indeed faster.
```python
from langchain.document_loaders import UnstructuredFileLoader
loader = UnstructuredFileLoader("layout-parser-paper-fast.pdf", strategy="fast", mode="elements")
%timeit loader.load()
loader = UnstructuredFileLoader("layout-parser-paper-fast.pdf", mode="elements")
%timeit loader.load()
```
On my system I get:
```python
In [3]: from langchain.document_loaders import UnstructuredFileLoader
In [4]: loader = UnstructuredFileLoader("layout-parser-paper-fast.pdf", strategy="fast", mode="elements")
In [5]: %timeit loader.load()
247 ms ± 369 µs per loop (mean ± std. dev. of 7 runs, 1 loop each)
In [6]: loader = UnstructuredFileLoader("layout-parser-paper-fast.pdf", mode="elements")
In [7]: %timeit loader.load()
2.45 s ± 31 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
```
#### Make sure older versions of `unstructured` still work
Run `pip install unstructured==0.5.3` and then verify the following runs
without error:
```python
from langchain.document_loaders import UnstructuredFileLoader
loader = UnstructuredFileLoader("layout-parser-paper-fast.pdf", mode="elements")
loader.load()
```
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| .. | ||
| ai21.md | ||
| atlas.md | ||
| bananadev.md | ||
| cerebriumai.md | ||
| chroma.md | ||
| cohere.md | ||
| deepinfra.md | ||
| deeplake.md | ||
| forefrontai.md | ||
| google_search.md | ||
| google_serper.md | ||
| gooseai.md | ||
| graphsignal.md | ||
| hazy_research.md | ||
| helicone.md | ||
| huggingface.md | ||
| modal.md | ||
| nlpcloud.md | ||
| openai.md | ||
| opensearch.md | ||
| petals.md | ||
| pinecone.md | ||
| promptlayer.md | ||
| runhouse.md | ||
| searx.md | ||
| serpapi.md | ||
| stochasticai.md | ||
| unstructured.md | ||
| weaviate.md | ||
| wolfram_alpha.md | ||
| writer.md | ||