How Can Time Series Analysis Benefit From Multiple Modalities? A Survey and Outlook
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Abstract (arXiv)
Time series analysis (TSA) is a longstanding research topic in the data mining community and has wide real-world significance. Compared to "richer" modalities such as language and vision, which have recently experienced explosive development and are densely connected, the time-series modality remains relatively underexplored and isolated. We notice that many recent TSA works have formed a new research field, i.e., Multiple Modalities for TSA (MM4TSA). In general, these MM4TSA works follow a common motivation: how TSA can benefit from multiple modalities. This survey is the first to offer a comprehensive review and a detailed outlook for this emerging field. Specifically, we systematically discuss three benefits: (1) reusing foundation models of other modalities for efficient TSA, (2) multimodal extension for enhanced TSA, and (3) cross-modality interaction for advanced TSA. We further group the works by the introduced modality type, including text, images, audio, tables, and others, within each perspective. Finally, we identify the gaps with future opportunities, including the reused modalities selections, heterogeneous modality combinations, and unseen tasks generalizations, corresponding to the three benefits. We release an up-to-date GitHub repository that includes key papers and resources.
Key facts. Cited by 20 papers in the map (data through 14 Oct 2026). Builds on 99 of its 217 references that are in the map. First posted on arXiv 14 Mar 2025.
Builds on
99 of 217 references.
References · 99
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- 2025TimeMaster: Training Time-Series Multimodal LLMs to Reason via Reinforcement Learningcited by 18
- 2025VisionTS++: Cross-Modal Time Series Foundation Model with Continual Pre-trained Vision Backbonescited by 12
- 2025AlphaCast: A Human Wisdom-LLM Intelligence Co-Reasoning Framework for Interactive Time Series Forecastingcited by 12
- 2026TSAQA: Time Series Analysis Question And Answering Benchmarkcited by 11
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- 2025Who's Your Judge? On the Detectability of LLM-Generated Judgmentscited by 8
- 2025From Images to Signals: Are Large Vision Models Useful for Time Series Analysis?cited by 7
- 2025TimeRecipe: A Time-Series Forecasting Recipe via Benchmarking Module Level Effectivenesscited by 7
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- 2026Multimodal Collaborative Debate for Zero-Shot Time Series Reasoning27 Jan 2026
- 2025AlphaCast: A Human Wisdom-LLM Intelligence Co-Reasoning Framework for Interactive Time Series Forecasting12 Nov 2025
- 2025Indoor Localization using Compact, Telemetry-Agnostic, Transfer-Learning Enabled Decoder-Only Transformer13 Oct 2025
- 2025Who's Your Judge? On the Detectability of LLM-Generated Judgments29 Sep 2025
- 2025CaTS-Bench: Can Language Models Describe Time Series?25 Sep 2025
- 2025PA-RNet: Perturbation-Aware Residual Network for Robust Multimodal Time Series Forecasting6 Aug 2025
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- 2025Causal Graph Fuzzy LLMs: A First Introduction and Applications in Time Series Forecasting22 Jul 2025
- 2025Time-RA: Towards Time Series Reasoning for Anomaly Diagnosis with LLM Feedback20 Jul 2025
- 2025TimeMaster: Training Time-Series Multimodal LLMs to Reason via Reinforcement Learning16 Jun 2025
- 2025TimeRecipe: A Time-Series Forecasting Recipe via Benchmarking Module Level Effectiveness6 Jun 2025
- 2025From Images to Signals: Are Large Vision Models Useful for Time Series Analysis?29 May 2025
- 2025Transforming Decoder-Only Transformers for Accurate WiFi-Telemetry Based Indoor Localization16 May 2025
- 2025ScreenLLM: Stateful Screen Schema for Efficient Action Understanding and Prediction26 Mar 2025
- 2025TimeMaster: Training Time-Series Multimodal LLMs to Reason via Reinforcement Learningcited by 18
- 2025AlphaCast: A Human Wisdom-LLM Intelligence Co-Reasoning Framework for Interactive Time Series Forecastingcited by 12
- 2025CaTS-Bench: Can Language Models Describe Time Series?cited by 10
- 2026SenTSR-Bench: Thinking with Injected Knowledge for Time-Series Reasoningcited by 2
- 2026Rethinking Post-Training Recipes for Multimodal Time-Series Forecastingcited by 2
- 2026Multimodal Collaborative Debate for Zero-Shot Time Series Reasoningcited by 1
- 2026A Cost-Effective Multimodal LLM Reasoning Framework for Question Answering over Irregular Clinical Time Seriescited by 1
- 2026A Cost-Effective Multimodal LLM Reasoning Framework for Question Answering over Irregular Clinical Time Series28 Jul 2026
- 2026Rethinking Post-Training Recipes for Multimodal Time-Series Forecasting28 May 2026
- 2026SenTSR-Bench: Thinking with Injected Knowledge for Time-Series Reasoning23 Feb 2026
- 2026Multimodal Collaborative Debate for Zero-Shot Time Series Reasoning27 Jan 2026
- 2025AlphaCast: A Human Wisdom-LLM Intelligence Co-Reasoning Framework for Interactive Time Series Forecasting12 Nov 2025
- 2025CaTS-Bench: Can Language Models Describe Time Series?25 Sep 2025
- 2025TimeMaster: Training Time-Series Multimodal LLMs to Reason via Reinforcement Learning16 Jun 2025
- 2025VisionTS++: Cross-Modal Time Series Foundation Model with Continual Pre-trained Vision Backbonescited by 12
- 2026TSAQA: Time Series Analysis Question And Answering Benchmarkcited by 11
- 2025Time-RA: Towards Time Series Reasoning for Anomaly Diagnosis with LLM Feedbackcited by 8
- 2025Who's Your Judge? On the Detectability of LLM-Generated Judgmentscited by 8
- 2025From Images to Signals: Are Large Vision Models Useful for Time Series Analysis?cited by 7
- 2025TimeRecipe: A Time-Series Forecasting Recipe via Benchmarking Module Level Effectivenesscited by 7
- 2026Spectral Text Fusion: A Frequency-Aware Approach to Multimodal Time-Series Forecastingcited by 6
- 2025ScreenLLM: Stateful Screen Schema for Efficient Action Understanding and Predictioncited by 1
- 2025Causal Graph Fuzzy LLMs: A First Introduction and Applications in Time Series Forecastingcited by 1
- 2025PA-RNet: Perturbation-Aware Residual Network for Robust Multimodal Time Series Forecastingcited by 1
- 2025Transforming Decoder-Only Transformers for Accurate WiFi-Telemetry Based Indoor Localizationcited by 0
- 2025Indoor Localization using Compact, Telemetry-Agnostic, Transfer-Learning Enabled Decoder-Only Transformercited by 0
- 2026Spectral Text Fusion: A Frequency-Aware Approach to Multimodal Time-Series Forecasting2 Feb 2026
- 2026TSAQA: Time Series Analysis Question And Answering Benchmark30 Jan 2026
- 2025Indoor Localization using Compact, Telemetry-Agnostic, Transfer-Learning Enabled Decoder-Only Transformer13 Oct 2025
- 2025Who's Your Judge? On the Detectability of LLM-Generated Judgments29 Sep 2025
- 2025PA-RNet: Perturbation-Aware Residual Network for Robust Multimodal Time Series Forecasting6 Aug 2025
- 2025VisionTS++: Cross-Modal Time Series Foundation Model with Continual Pre-trained Vision Backbones6 Aug 2025
- 2025Causal Graph Fuzzy LLMs: A First Introduction and Applications in Time Series Forecasting22 Jul 2025
- 2025Time-RA: Towards Time Series Reasoning for Anomaly Diagnosis with LLM Feedback20 Jul 2025
- 2025TimeRecipe: A Time-Series Forecasting Recipe via Benchmarking Module Level Effectiveness6 Jun 2025
- 2025From Images to Signals: Are Large Vision Models Useful for Time Series Analysis?29 May 2025
- 2025Transforming Decoder-Only Transformers for Accurate WiFi-Telemetry Based Indoor Localization16 May 2025
- 2025ScreenLLM: Stateful Screen Schema for Efficient Action Understanding and Prediction26 Mar 2025