See and Remember: A Multimodal Agent for Web Traversal
Organizations: Shanghai Institute of AI for Education, East China Normal University · Shanghai Innovation Institute
Abstract
Autonomous web navigation requires agents to perceive complex visual environments and maintain long-term context, yet current Large Language Model (LLM) based agents often struggle with spatial disorientation and navigation loops. In this paper, we propose generally applicable V-GEMS(Visual Grounding and Explicit Memory System), a robust multimodal agent architecture designed for precise and resilient web traversal. Our agent integrates visual grounding to resolve ambiguous interactive elements and introduces an explicit memory stack with state tracking. This dual mechanism allows the agent to maintain a structured map of its traversal path, enabling valid backtracking and preventing cyclical failures in deep navigation tasks. We also introduce an updatable dynamic benchmark to rigorously evaluate adaptability. Experiments show V-GEMS significantly dominates the WebWalker baseline, achieving a substantial 28.7% performance gain. Code is available at https://github.com/Vaultttttttttttt/V-GEMS.
Figures & tables
| Difficulty | Single-source | Multi-source |
| Easy | 80 | 80 |
| Medium | 140 | 140 |
| Hard | 120 | 120 |
| Total | 340 | 340 |
| Modules | Fine-grained Tasks (F1) | Cross-domain Tasks (F1) | Avg | ||||||||||||
| VLM | URL | Count | Single-Source | Multi-Source | CN | EN | Game | Conf | Org | Edu | |||||
| Easy | Med | Hard | Easy | Med | Hard | ||||||||||
| - | - | - | 0.60 | 0.50 | 0.48 | 0.50 | 0.45 | 0.44 | 0.50 | 0.49 | 0.32 | 0.51 | 0.63 | 0.54 | 0.50 |
| - | - | ✓ | 0.63 | 0.52 | 0.48 | 0.49 | 0.46 | 0.46 | 0.51 | 0.50 | 0.34 | 0.51 | 0.63 | 0.55 | 0.51 |
| - | ✓ | - | 0.63 | 0.60 | 0.60 | 0.66 | 0.56 | 0.51 | 0.64 | 0.48 | 0.51 | 0.58 | 0.67 | 0.61 | 0.59 |
| - | ✓ | ✓ | 0.65 | 0.61 | 0.59 | 0.67 | 0.57 | 0.52 | 0.63 | 0.50 | 0.52 | 0.59 | 0.69 | 0.61 | 0.59 |
Appendix figures & tables5 assets
Supplementary material from the paper’s appendix.
Appendix
| Root Url | https://www.fiba.basketball/en |
| Question | Which team won the second place in the FIBA Asia Cup 2025? |
| Answer | China |
| Source Website | https://www.fiba.basketball/en/history/195-fiba-asia-cup |
| Website Information | (Visual Context: The 2025 row shows 1st: AUS, 2nd: CHN, 3rd: IRI) |
| Prediction (Hallucination) | "Japan won the second place." [Analysis]: The entity "Japan" is fabricated . It does not exist in the 2025 data row shown above. |
| Prediction (Totally Incorrect) | "Australia won the second place." [Analysis]: "Australia" exists in the row (as 1st place) but is logically misattributed to the 2nd place. |
| Question | Which team won the FIBA Asia Cup 2025, and who was named the TISSOT MVP of the tournament? |
| Answer | Australia won the FIBA Asia Cup 2025, and Jaylin Galloway was named the TISSOT MVP. |
| Prediction | "Australia won the FIBA Asia Cup 2025." [Analysis]: The answer is factually correct but incomplete . The agent correctly processed the first intent (Winning Team) but completely ignored the second intent (MVP) of the compound query, demonstrating a failure in comprehensive information recall. |
| Question | When was the last update made to the PSLE Secondary 1 Posting information? |
| Answer | The last update to the PSLE Secondary 1 Posting information was made on 21 Jul 2023 . |
| Prediction (Imprecise) | "The last update to the PSLE Secondary 1 Posting information was made in Jul 2023." [Analysis]: The answer is factually consistent with the truth but fails to meet the required temporal granularity . While the source provides a specific timestamp (Day-Month-Year), the model generalizes it to a broader scope (Month-Year), resulting in a loss of information fidelity. |
Web Agents
Web agents use language and vision models to navigate websites, gather information, and complete tasks through interactive interfaces.
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