Yao You d51fb134e6
Feat/improve iou speed (#3582)
This PR vectorizes the computation of element overlap to speed up
deduplication process of extracted elements.

## test

This PR adds unit test to the new vectorized IOU and subregion
computation functions.

In addition, running partition on large files with many elements like
this slide:

[002489.pdf](https://github.com/user-attachments/files/16823176/002489.pdf)

shows a reduction of runtime from around 15min on the main branch to
less than 4min with this branch.

Profiling results show that the new implementation greatly reduces the
time cost of computation and now most of the time is spend on getting
the coordinates from a list of bboxes.

![Screenshot 2024-08-30 at 9 29
27 PM](https://github.com/user-attachments/assets/6c186838-54c7-483b-ac3e-7342c23ff3a6)
2024-09-03 00:06:18 +00:00
..
2024-09-03 00:06:18 +00:00
2024-08-06 19:21:43 +00:00
2024-08-06 19:21:43 +00:00