Update README.md

README.md

@@ -4,21 +4,41 @@ language:
 - en
 size_categories:
 - 1K<n<10K
+pretty_name: Android GPU Performance Counter to Key Press Dataset
 ---
 
 # Android GPU Performance Counter to Key Press Dataset
 
 ## Description
 
-This dataset comes from our mobile GPU-based eavesdropping work, [Eavesdropping user credentials via GPU side channels on smartphones](https://doi.org/10.1145/3503222.3507757), presented at the 27th ACM International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS 2022). It contains 3,466 traces of mapping between the on-screen keyboard key presses and corresponding Snapdragon Adreno GPU performance counter changes in the meantime.
+This dataset comes from our mobile GPU-based eavesdropping work, [Eavesdropping user credentials via GPU side channels on smartphones](https://doi.org/10.1145/3503222.3507757), presented at the 27th ACM International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS 2022).
+It contains 3,466 traces of mapping between the on-screen keyboard key presses and corresponding Snapdragon Adreno GPU performance counter changes collected on device in the meantime.
+
+## Data Structure
 
 The dataset is arranged in the following format:
 
 * Folder name (e.g., `1622457056`): This UNIX timestamp when the experiment took place.
     * `timestamp_data.csv`: Raw recording of GPU performance counter changes during the experiment.
-        * Column 1: UNIX timestamp of each event
-        * Column 2-13: GPU performance counter changes of different types
+        * Column 1: UNIX timestamp of each performance counter ("PC") value change event, with granularity of 1 microseconds.
+        * Column 2-13: GPU PC value changes of different types:
+            * `PERF_LRZ_VISIBLE_PRIM_AFTER_LRZ`
+            * `PERF_LRZ_FULL_8X8_TILES`
+            * `PERF_LRZ_PARTIAL_8X8_TILES`
+            * `PERF_LRZ_VISIBLE_PIXEL_AFTER_LRZ`
+            * `PERF_RAS_SUPERTILE_ACTIVE_CYCLES`
+            * `PERF_RAS_SUPER_TILES`
+            * `PERF_RAS_8X4_TILES`
+            * `PERF_RAS_FULLY_COVERED_8X4_TILES`
+            * `PERF_VPC_PC_PRIMITIVES`
+            * `PERF_VPC_SP_COMPONENTS`
+            * `PERF_VPC_LRZ_ASSIGN_PRIMITIVES`
+            * `PERF_VPC_SP_LM_COMPONENTS`
     * `timestamp_keys.csv`: Keyboard key presses occurred during the experiment.
+        * Column 1: UNIX timestamp of each key press, with granularity of 1 microseconds.
+        * Column 2: The specific key press occurred.
+
+For the discussion of detailed meanings of different GPU PCs, please refer to [our paper](https://doi.org/10.1145/3503222.3507757).
 
 ## Citation
 
@@ -54,4 +74,4 @@ This work is licensed under a
 
 [cc-by-nc-sa]: http://creativecommons.org/licenses/by-nc-sa/4.0/
 [cc-by-nc-sa-image]: https://licensebuttons.net/l/by-nc-sa/4.0/88x31.png
-[cc-by-nc-sa-shield]: https://img.shields.io/badge/License-CC%20BY--NC--SA%204.0-lightgrey.svg
+[cc-by-nc-sa-shield]: https://img.shields.io/badge/License-CC%20BY--NC--SA%204.0-lightgrey.svg