LVLM-eHub: A Comprehensive Evaluation Benchmark for Large Vision-Language Models

Peng Xu, Wenqi Shao, Kaipeng Zhang, Peng Gao, Shuo Liu, Fanqing Meng, Siyuan Huang, Meng Lei, Ping Luo, Yu Qiao

Keywords: Multi-modality Evaluation; Large Visual-Language Models

TL;DR: a comprehensive evaluation benchmark for large visual-language models

Abstract: Large Vision-Language Models (LVLM) have recently played a dominant role in multimodal vision-language learning. Despite the great success, it lacks a holistic evaluation of their efficacy. This paper presents a comprehensive evaluation of publicly available large multimodal models by building an LVLM evaluation Hub (LVLM-eHub). Our LVLM-eHub consists of $8$ representative LVLMs such as InstructBLIP and MiniGPT-4, which are thoroughly evaluated by a quantitative capability evaluation and an online arena platform. The former evaluates $6$ categories of multimodal capabilities of LVLMs such as visual question answering and embodied artificial intelligence on $40$ standard text-related visual benchmarks, while the latter provides the user-level evaluation of LVLMs in an open-world question-answering scenario. The study reveals several innovative findings. First, Instruction-tuned LVLM with massive in-domain data such as InstructBLIP heavily overfits many existing tasks, generalizing poorly in the open-world scenario. Second, Instruction-tuned LVLM with moderate instruction-following data may result in object hallucination issues (i.e., generate objects that are inconsistent with target images in the descriptions). It either makes the current evaluation metric such as CIDER for image captioning ineffective or generates wrong answers. Third, employing a multi-turn reasoning evaluation framework can mitigate the issue of object hallucination, shedding light on developing an effective metric for LVLM evaluation. The findings provide a foundational framework for the conception and assessment of innovative strategies aimed at enhancing zero-shot multimodal techniques. The evaluation pipeline will be available at [vlarena page](https://github.com/OpenGVLab/Multi-Modality-Arena/tree/main/LVLM_evaluation).

Submission Number: 435