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arxiv: 2605.08146 · v3 · pith:J5BMPQQUnew · submitted 2026-05-03 · 💻 cs.CV · cs.AI

VT-Bench: A Unified Benchmark for Visual-Tabular Multi-Modal Learning

Zi-Yi Jia , Zi-Jian Cheng , Xin-Yue Zhang , Kun-Yang Yu , Zhi Zhou , Yu-Feng Li , Lan-Zhe Guo This is my paper

Pith reviewed 2026-05-21 00:27 UTC · model grok-4.3

classification 💻 cs.CV cs.AI
keywords visual-tabular learningmulti-modal benchmarkdiscriminative predictiongenerative reasoningvision-language modelsmodel evaluationmulti-modal datasets
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The pith

VT-Bench collects 14 visual-tabular datasets across nine domains to create the first standard test for models that combine images with tables.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper establishes a shared collection of visual and tabular datasets so that researchers can measure progress on tasks requiring both image understanding and table-based reasoning. These tasks matter in areas such as healthcare where scans must be interpreted alongside patient records, yet no prior common yardstick existed for comparing approaches. The work gathers the datasets, defines both prediction and reasoning versions of the tasks, and runs a broad set of current models on them. The results show that existing techniques still encounter clear difficulties when the two data types must be used together. A reader would care because a reliable benchmark makes it easier to develop and compare the multi-modal systems needed for real decisions in medicine and industry.

Core claim

VT-Bench is the first unified benchmark for standardizing vision-tabular discriminative prediction and generative reasoning tasks. It aggregates 14 datasets across 9 domains with over 756K samples and evaluates 23 representative models, including unimodal experts, specialized visual-tabular models, general-purpose vision-language models, and tool-augmented methods, to highlight substantial challenges of visual-tabular learning.

What carries the argument

VT-Bench, the aggregated collection of 14 datasets and defined tasks that standardizes testing of models required to process both visual inputs and tabular records at once.

If this is right

  • Researchers gain a single, reproducible way to compare unimodal, specialized, and vision-language models on the same visual-tabular problems.
  • The evaluation results identify concrete performance gaps that new model designs must close.
  • Development of foundation models able to handle combined vision and tabular data receives a clear target for improvement.
  • High-stakes applications in healthcare and industry obtain a pathway toward more reliable multi-modal systems.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • Similar aggregation efforts could be applied to other modality pairs such as audio with tables to test whether the same integration problems appear.
  • Adding datasets from additional domains over time would let the benchmark track whether progress generalizes beyond the initial nine areas.
  • The identified challenges suggest value in testing whether new fusion layers or reasoning modules improve results across the full set of tasks.

Load-bearing premise

The chosen datasets and domains supply a representative sample of visual-tabular difficulties without selection effects or domain artifacts shaping the measured challenges.

What would settle it

A new model achieving high scores on VT-Bench yet showing poor results on fresh visual-tabular cases drawn from a medical or industrial setting outside the nine included domains would show that the benchmark does not capture the full range of real difficulties.

Figures

Figures reproduced from arXiv: 2605.08146 by Kun-Yang Yu, Lan-Zhe Guo, Xin-Yue Zhang, Yu-Feng Li, Zhi Zhou, Zi-Jian Cheng, Zi-Yi Jia.

Figure 1
Figure 1. Figure 1: Two paradigms in vision–tabular multi-modal learning and the cross-modal grounding challenge in generative reasoning. As shown in [PITH_FULL_IMAGE:figures/full_fig_p001_1.png] view at source ↗
Figure 2
Figure 2. Figure 2: The comparison between VT-Bench and existing vision–tabular benchmarks. VT-Bench achieves stronger breadth by covering both discriminative prediction and generative reasoning paradigms while spanning diverse domains, and greater depth by evaluating key capabilities for vision–tabular learning. pairs, requiring structured retrieval followed by cross-modal medical reasoning. This design reflects real clinica… view at source ↗
Figure 3
Figure 3. Figure 3: Model-averaged accuracy on DVM-Car QA across Identification and four task types under varying sub-table sizes. prioritize learning discriminative and separable repre￾sentations to accommodate such heterogeneity, thereby ensuring more stable and robust fusion. Additional analyses of fusion architecture, training strat￾egy, and backbone selection for vision–tabular models are provided in the Section B. Findi… view at source ↗
Figure 4
Figure 4. Figure 4: Performance comparison between MMCL and its visual backbone (ResNet-50) across classification and regression tasks. The bar charts display the performance metrics (Accuracy for classification; RMSE for regression), while the red line plots the performance gain (Δ) of MMCL over the baseline. 0.45 0.50 0.55 0.60 0.65 0.70 Accuracy 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Rank FT-Transformer LightGBM TabPFN v2 VIT-16… view at source ↗
Figure 6
Figure 6. Figure 6: Prompt template used for fine-tuning Qwen on the skin-cancer diagnostic task. The template instructs the model to predict the diagnostic category (BCC, SCC, MEL, NEV, ACK, or SEK) based on both tabular patient/lesion metadata and the corresponding dermatoscopic image. D.1.1. Public Datasets We introduce eight public datasets used in our benchmark. For all datasets, the reported sample sizes are computed af… view at source ↗
Figure 6
Figure 6. Figure 6: Performance comparison between MMCL and its visual backbone (ResNet-50) across classification and regression tasks. The bar charts display the performance metrics (Accuracy for classification; RMSE for regression), while the red line plots the performance gain (Δ) of MMCL over the baseline. 0.45 0.50 0.55 0.60 0.65 0.70 Accuracy 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Rank FT-Transformer LightGBM TabPFN v2 VIT-16… view at source ↗
Figure 7
Figure 7. Figure 7: The two-stage prompt design for EHRXQA evaluation. Stage 1 acquires structured evidence via SQL under strict temporal constraints. Stage 2 integrates returned tabular evidence and CXR images for clinical reasoning. D.2.2. Multi-ModalQA. Multi-ModalQA (MMQA) (Talmor et al., 2021) is a multi-modal question answering benchmark that requires jointly using evidence from text, tables, and images. Unlike single-s… view at source ↗
Figure 8
Figure 8. Figure 8: Distribution of question types in the generative reasoning benchmarks, grouped by the modality of evidence required for answering: image-only, table-only, text-only (available only in MMQA), and their combinations. The left panel presents the distribution for each individual subset, while the right panel summarizes the overall distribution across all reasoning data. E.2. Discriminative Prediction Datasets … view at source ↗
Figure 8
Figure 8. Figure 8: The multi-modal reasoning prompt for MMQA. This template strictly enforces zero-shot constraints and concise output across text, tabular, and visual modalities. MMQA defines four unimodal sub-tasks: TextQ, TableQ, ImageQ, and ImageListQ, indicating that each question is answerable using evidence from the corresponding modality only. It further summarizes multi-step reasoning into three operations and accor… view at source ↗
Figure 9
Figure 9. Figure 9: Prompt template used for fine-tuning Qwen on the skin-cancer diagnostic task. The template instructs the model to predict the diagnostic category (BCC, SCC, MEL, NEV, ACK, or SEK) based on both tabular patient/lesion metadata and the corresponding dermatoscopic image. Adoption. The PetFinder adoption prediction dataset contains 14,652 pet profiles with structured metadata. For feature construction, we conv… view at source ↗
Figure 9
Figure 9. Figure 9: Construction pipeline of DVM-Car QA. The pipeline includes three stages: (1) Data alignment & sampling, where each car image is matched to its table row and distractor rows are added so the target row is uniquely identifiable by a visual alignment key (e.g., Color=Red in the example); (2) Attribute selection & template instantiation, where attributes and target-relative constraints are sampled to generate … view at source ↗
Figure 10
Figure 10. Figure 10: The visual-tabular reasoning prompt for DVM-Car QA. This template evaluates the model’s ability to perform cross-modal grounding and attribute retrieval in a zero-shot setting. adaptive hyperparameter optimization based on the Optuna framework and following previous studies (Liu et al., 2024), fixing the batch size at 1024 and conducting 100 independent trials through train-validation splits to prevent te… view at source ↗
Figure 11
Figure 11. Figure 11: The multi-modal reasoning prompt for MMQA. This template strictly enforces zero-shot constraints and concise output across text, tabular, and visual modalities. table that contains 𝑛 candidate vehicles (𝑛 ∈ 10, 20, 50) described by 15 fixed attributes. Importantly, exactly one row in 𝑇 uniquely corresponds to the vehicle shown in 𝐼, which we refer to as the target row. The question 𝑞 is written in natural… view at source ↗
Figure 12
Figure 12. Figure 12: Construction pipeline of DVM-Car QA. The pipeline includes three stages: (1) Data alignment & sampling, where each car image is matched to its table row and distractor rows are added so the target row is uniquely identifiable by a visual alignment key (e.g., Color=Red in the example); (2) Attribute selection & template instantiation, where attributes and target-relative constraints are sampled to generate… view at source ↗
Figure 13
Figure 13. Figure 13: The visual-tabular reasoning prompt for DVM-Car QA. This template evaluates the model’s ability to perform cross-modal grounding and attribute retrieval in a zero-shot setting. models with comparable predictive accuracy. TabTransformer TabTransformer(Huang et al., 2020b) adopts a Transformer-based architecture to contextualize categorical feature embeddings through self-attention, producing more informati… view at source ↗
read the original abstract

Multi-model learning has attracted great attention in visual-text tasks. However, visual-tabular data, which plays a pivotal role in high-stakes domains like healthcare and industry, remains underexplored. In this paper, we introduce \textit{VT-Bench}, the first unified benchmark for standardizing vision-tabular discriminative prediction and generative reasoning tasks. VT-Bench aggregates 14 datasets across 9 domains (medical-centric, while covering pets, media, and transportation) with over 756K samples. We evaluate 23 representative models, including unimodal experts, specialized visual-tabular models, general-purpose vision-language models (VLMs), and tool-augmented methods, highlighting substantial challenges of visual-tabular learning. We believe VT-Bench will stimulate the community to build more powerful multi-modal vision-tabular foundation models. Benchmark: https://github.com/Ziyi-Jia990/VT-Bench

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

3 major / 2 minor

Summary. The manuscript introduces VT-Bench as the first unified benchmark for visual-tabular multi-modal learning. It aggregates 14 datasets across 9 domains (described as medical-centric while covering pets, media, and transportation) totaling over 756K samples, defines discriminative prediction and generative reasoning tasks, and evaluates 23 models spanning unimodal experts, specialized visual-tabular models, VLMs, and tool-augmented approaches to demonstrate substantial challenges.

Significance. A well-curated, standardized benchmark in this underexplored area could provide a valuable testbed for future work on multi-modal models in high-stakes domains. The public release of the benchmark and associated code is a concrete strength that supports reproducibility and community follow-up.

major comments (3)
  1. [§3] §3 (Benchmark Construction): The manuscript states the collection is 'medical-centric' but provides no quantitative breakdown of sample counts or task difficulty per domain, nor explicit inclusion/exclusion criteria or cross-domain calibration. This directly bears on the central claim that the benchmark 'highlights substantial challenges' in a generalizable way rather than domain-specific artifacts.
  2. [§4] §4 (Evaluation Protocol): Task standardization, preprocessing pipelines, and handling of missing tabular values or image resolutions are not described with sufficient detail to verify fairness across the 23 models. Without these, performance gaps cannot be confidently attributed to intrinsic visual-tabular difficulties.
  3. [§5] §5 (Results): Reported model performances lack error bars, statistical significance tests, or ablation on domain subsets. This weakens the claim that the benchmark reveals 'substantial challenges' that are representative rather than driven by the majority medical samples.
minor comments (2)
  1. [Abstract] The abstract could more precisely state the number of discriminative vs. generative tasks and the primary quantitative findings from the 23-model evaluation.
  2. [Figure 1] Figure 1 or the benchmark overview table should include per-domain sample counts and modality statistics for immediate clarity.

Simulated Author's Rebuttal

3 responses · 0 unresolved

We thank the referee for their thoughtful and constructive review. We have addressed each major comment by adding quantitative details, expanding methodological descriptions, and incorporating statistical analyses to strengthen the transparency and generalizability of VT-Bench.

read point-by-point responses

  1. Referee: [§3] §3 (Benchmark Construction): The manuscript states the collection is 'medical-centric' but provides no quantitative breakdown of sample counts or task difficulty per domain, nor explicit inclusion/exclusion criteria or cross-domain calibration. This directly bears on the central claim that the benchmark 'highlights substantial challenges' in a generalizable way rather than domain-specific artifacts.

    Authors: We agree that a quantitative breakdown strengthens the claims. In the revised manuscript, we have added Table 2 in §3 detailing sample counts, task types, and difficulty proxies (e.g., class imbalance ratios) for each domain. Inclusion criteria are now explicitly stated: datasets were chosen for paired image-tabular availability, public accessibility, and coverage of high-stakes applications, with exclusion of purely synthetic or single-modality sets. Cross-domain calibration is achieved via unified task templates (e.g., standardized input formatting for prediction and reasoning), while preserving domain-specific features to reflect real-world variability. This supports that challenges are not artifacts of medical dominance alone. revision: yes

  2. Referee: [§4] §4 (Evaluation Protocol): Task standardization, preprocessing pipelines, and handling of missing tabular values or image resolutions are not described with sufficient detail to verify fairness across the 23 models. Without these, performance gaps cannot be confidently attributed to intrinsic visual-tabular difficulties.

    Authors: We appreciate this point on reproducibility. Section 4 has been expanded with a dedicated subsection on preprocessing: all images are resized to 224×224 with consistent augmentations; missing tabular values are handled via median imputation for numerical features and mode for categorical, with explicit masking flags; task standardization includes fixed prompt templates for generative tasks and label encoding for discriminative ones. These details ensure consistent evaluation across unimodal, VLM, and tool-augmented models. revision: yes

  3. Referee: [§5] §5 (Results): Reported model performances lack error bars, statistical significance tests, or ablation on domain subsets. This weakens the claim that the benchmark reveals 'substantial challenges' that are representative rather than driven by the majority medical samples.

    Authors: We acknowledge the need for statistical rigor. The revised §5 now includes error bars (standard deviation over 5 random seeds) for all reported metrics, paired t-tests for significance between top models, and a new ablation table comparing performance on medical vs. non-medical domain subsets. Results confirm that substantial challenges (e.g., low generative accuracy) persist in both subsets, supporting generalizability beyond medical data dominance. revision: yes

Circularity Check

0 steps flagged

No circularity: empirical benchmark with no derivations or self-referential predictions

full rationale

VT-Bench is a curation and evaluation paper that aggregates 14 existing datasets across domains and runs 23 models on them to report performance. No equations, fitted parameters, or first-principles derivations appear in the abstract or described content. The central claim (that the benchmark highlights substantial challenges) is an empirical observation from the released testbed rather than a closed-loop result that reduces to its own inputs by construction. Dataset selection and domain coverage are open to criticism on representativeness, but that is a question of external validity, not circularity in any derivation chain.

Axiom & Free-Parameter Ledger

0 free parameters · 0 axioms · 0 invented entities

This is an empirical benchmark paper. No free parameters are fitted, no mathematical axioms are invoked, and no new entities are postulated. The work relies on existing public datasets and off-the-shelf models.

pith-pipeline@v0.9.0 · 5709 in / 1169 out tokens · 46407 ms · 2026-05-21T00:27:00.885075+00:00 · methodology

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