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license: apache-2.0
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# GUI Grounding Pre-training Data for OS-ATLAS
This document describes the acquisition of the pre-training data used by OS-ATLAS.

**Notes:** In GUI grounding data, the position of the target element is recorded in the `bbox` key, represented by `[left, top, right, bottom]`. 
Each value is a [0, 1] decimal number indicating the ratio of the corresponding position to the width or height of the image.

The data we released is divided into three domains: mobile, desktop and web.

Each sample contain:
* `img_filename`: the interface screenshot file
* `instruction`: human instruction
* `bbox`: the bounding box of the target element corresponding to instruction

Some data also contains a `data_type`, which records the type of an element in its structured information, if it can be obtained.

### Mobile data

The data is stored under the *mobile_domain* directory. Our mobile grounding data consists of four parts: