README.md

metadata

task_categories:
  - image-text-to-text
language:
  - en
dataset_info:
  - config_name: attribute_grounding_and_alignment
    features:
      - name: idx
        dtype: int32
      - name: imgname
        dtype: string
      - name: chart_type
        dtype: string
      - name: attribute
        dtype: string
      - name: chart_1_grounding
        dtype: string
      - name: chart_2_grounding
        dtype: string
      - name: alignment_json
        dtype: string
      - name: image_pair
        dtype: image
    splits:
      - name: test
        num_bytes: 144273203.125
        num_examples: 1751
    download_size: 140665218
    dataset_size: 144273203.125
  - config_name: data_grounding_and_alignment
    features:
      - name: idx
        dtype: int32
      - name: imgname
        dtype: string
      - name: chart_type
        dtype: string
      - name: num_cell_difference
        dtype: int32
      - name: chart_1_grounding
        dtype: string
      - name: chart_2_grounding
        dtype: string
      - name: alignment_json
        dtype: string
      - name: image_pair
        dtype: image
    splits:
      - name: test
        num_bytes: 391677829.125
        num_examples: 4287
    download_size: 382856565
    dataset_size: 391677829.125
  - config_name: robustness
    features:
      - name: idx
        dtype: int32
      - name: set_idx
        dtype: int32
      - name: set_pair_idx
        dtype: int32
      - name: imgname
        dtype: string
      - name: chart_type
        dtype: string
      - name: num_cell_difference
        dtype: int32
      - name: attribute_varied
        dtype: string
      - name: alignment_json
        dtype: string
      - name: image_pair
        dtype: image
    splits:
      - name: test
        num_bytes: 1339741262.125
        num_examples: 16575
    download_size: 1277778734
    dataset_size: 1339741262.125
configs:
  - config_name: attribute_grounding_and_alignment
    data_files:
      - split: test
        path: attribute_grounding_and_alignment/test-*
  - config_name: data_grounding_and_alignment
    data_files:
      - split: test
        path: data_grounding_and_alignment/test-*
  - config_name: robustness
    data_files:
      - split: test
        path: robustness/test-*

📊 ChartAlignBench

📖 Paper | 💻 GitHub

ChartAlignBench is a multi-modal benchmark designed to evaluate vision-language models (VLMs) on dense-level chart grounding and multi-chart alignment to comprehensively assess fine-grained chart understanding in VLMs.

🌐 Overview

ChartAlignBench contains 9K+ instances, divided into three evaluation subsets:-

1. Data Grounding & Alignment: Paired charts differ in underlying data values visualized by the chart.
2. Attribute Grounding & Alignment: Paired charts differ in visualization attribute e.g., color, legend or text style.
3. Robustness: Multiple variants of paired charts for Data Alignment, with different attributes across variants.

Examples of chart pair instances in ChartAlignBench.

📃 Instruction

For each subset, the test*.parquet files contain the annotations and image pairs pre-loaded for processing with HF Datasets.

from datasets import load_dataset

data_grounding_and_alignment_subset = load_dataset("umd-zhou-lab/ChartAlignBench", "data_grounding_and_alignment")
attribute_grounding_and_alignment_subset = load_dataset("umd-zhou-lab/ChartAlignBench", "attribute_grounding_and_alignment")
robustness_subset = load_dataset("umd-zhou-lab/ChartAlignBench", "robustness")

📂 Dataset Description

Common fields (all subsets)

Field	Description
idx	Unique index of the sample in the set
imgname	Name of the chart image
chart_type	Type of chart
alignment_json	Alignment label for the chart pair
image_pair	Image of horizontally stitched chart pair (PIL.Image)

Data Grounding and Alignment

Field	Description
num_cell_difference	Number of data points which differ between the chart pair
chart_1_grounding	Grounding label for chart 1 (csv table)
chart_2_grounding	Grounding label for chart 2 (csv table)

Attribute Grounding and Alignment

Field	Description
attribute	Attribute which differs between the chart pair
chart_1_grounding	Grounding label for chart 1 (json)
chart_2_grounding	Grounding label for chart 2 (json)

Robustness

Field	Description
set_idx	Set index which groups the 5 chart pairs in a robustness set
set_pair_idx	Pair index within a set (1-5)
num_cell_difference	Number of data points which differ between the chart pair
attribute_varied	Attribute which varies across the 5 chart pairs