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Time-Series Retrieval for Grounding Multimodal Language Models in Remaining Useful Life

Large language models (LLMs) and agentic AI systems are increasingly being explored for domain-specific maintenance and prognostics tasks, raising the question of whether they can effectively support prognostics and health management (PHM).

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Primary-source image accompanying Time-Series Retrieval for Grounding Multimodal Language Models in Remaining Useful Life
主要來源文件來源記錄
出版商
arxiv.org
來源連結
arxiv.orghttps://arxiv.org/abs/2608.19218
來源類型
主要文件-我們直接閱讀的官方公告、文件、文件或第一方頁面。
背景60 秒內了解這一點

從這裡開始

關鍵術語

檢索
從知識來源中尋找相關文件或記錄以進行查詢。
RAG(檢索增強生成)
一種檢索外部知識並在推理時輸入生成的方法。
基準測試
用於測量和比較模型性能的標準化測試或資料集。
測試一下自己什麼是人工智慧?測驗

發生了什麼事

The authors investigate remaining useful life (RUL) estimation with multimodal large language models (MLLMs) grounded through time-series . They propose a framework in which historically similar degradation segments are retrieved from the training set and, together with the test trajectory, transformed into a visual comparison artifact that is processed by the MLLM through a structured multimodal prompt.

The authors investigate remaining useful life (RUL) estimation with multimodal large language models (MLLMs) grounded through time-series .

They propose a framework in which historically similar degradation segments are retrieved from the training set and, together with the test trajectory, transformed into a visual comparison artifact that is processed by the MLLM through a structured multimodal prompt.

The approach is evaluated on the FD001 partition of the C-MAPSS under repeated experiments comparing -based inference against a non-retrieval baseline based on random reference selection.

The results show that time-series consistently improves MLLM-based RUL prediction across the evaluated models, yielding lower error and more stable performance.

At the same time, the magnitude of the benefit depends on model capacity, indicating that is most effective when the underlying MLLM is able to exploit the retrieved evidence.

The proposed framework has the potential to improve the accuracy and reliability of RUL estimation in various domains, such as aerospace and automotive.

The study also highlights the importance of considering the limitations of MLLM-based RUL estimation and the need for further research in this area.

The results of the study have implications for the development of more accurate and reliable prognostic systems, which can lead to improved maintenance and reduced downtime in various industries.

The study also contributes to the understanding of the role of time-series in improving multimodal prognostic reasoning and highlights the potential of this approach for future research.

The study shows that time-series RAG is a promising mechanism for improving multimodal prognostic reasoning, while also highlighting the current limitations of MLLM-based RUL estimation in practical PHM settings.

The authors evaluate the proposed framework on the FD001 partition of the C-MAPSS under repeated experiments comparing -based inference against a non-retrieval baseline based on random reference selection.

The results show that time-series consistently improves MLLM-based RUL prediction across the evaluated models, yielding lower error and more stable performance.

The magnitude of the benefit depends on model capacity, indicating that is most effective when the underlying MLLM is able to exploit the retrieved evidence.

The study highlights the importance of considering the limitations of MLLM-based RUL estimation and the need for further research in this area.

The results of the study have implications for the development of more accurate and reliable prognostic systems, which can lead to improved maintenance and reduced downtime in various industries.

來源詳情: arxiv.org

為什麼這很重要

The study shows that time-series RAG is a promising mechanism for improving multimodal prognostic reasoning, while also highlighting the current limitations of MLLM-based RUL estimation in practical PHM settings.

The study shows that time-series RAG is a promising mechanism for improving multimodal prognostic reasoning, while also highlighting the current limitations of MLLM-based RUL estimation in practical PHM settings.

The proposed framework has the potential to improve the accuracy and reliability of RUL estimation in various domains, such as aerospace and automotive.

The study also highlights the importance of considering the limitations of MLLM-based RUL estimation and the need for further research in this area.

The results of the study have implications for the development of more accurate and reliable prognostic systems, which can lead to improved maintenance and reduced downtime in various industries.

The study also contributes to the understanding of the role of time-series in improving multimodal prognostic reasoning and highlights the potential of this approach for future research.

The study highlights the importance of considering the limitations of MLLM-based RUL estimation and the need for further research in this area.

The results of the study have implications for the development of more accurate and reliable prognostic systems, which can lead to improved maintenance and reduced downtime in various industries.

The study also contributes to the understanding of the role of time-series in improving multimodal prognostic reasoning and highlights the potential of this approach for future research.

The study shows that time-series RAG is a promising mechanism for improving multimodal prognostic reasoning, while also highlighting the current limitations of MLLM-based RUL estimation in practical PHM settings.

The proposed framework has the potential to improve the accuracy and reliability of RUL estimation in various domains, such as aerospace and automotive.

The study also highlights the importance of considering the limitations of MLLM-based RUL estimation and the need for further research in this area.

The results of the study have implications for the development of more accurate and reliable prognostic systems, which can lead to improved maintenance and reduced downtime in various industries.

The study also contributes to the understanding of the role of time-series in improving multimodal prognostic reasoning and highlights the potential of this approach for future research.

Interactive Mechanism

互動機制:它實際上是如何運作的

以互動方式探索這項發展背後的基礎技術。

Thinking Budget (Test-Time Tokens):1,024 tokens
Complex Accuracy79%Math & Code Logic
Latency3.2sTime to first full output
Inference Cost$0.0092Per query estimated
Reasoning StyleStep VerificationInternal chain depth
Active Thinking Trace:
1Deconstruct user problem into formal constraints
2Propose candidate hypotheses & step-by-step calculation
3Self-correction: Backtrack and refute subtle edge cases
4Exhaustive consistency check & final output synthesis
Core takeaway: Test-time compute fundamentally changes AI economics. Instead of only scaling during pre-training, giving reasoning models more tokens at inference time allows them to systematically solve PhD-level STEM problems.
互動式概念檢查+10 Points
What is AI? Quiz

Which description best fits "narrow AI", the kind of AI in use today?

接下來看什麼

The authors evaluate the proposed framework on the FD001 partition of the C-MAPSS under repeated experiments comparing -based inference against a non-retrieval baseline based on random reference selection.

The authors evaluate the proposed framework on the FD001 partition of the C-MAPSS under repeated experiments comparing -based inference against a non-retrieval baseline based on random reference selection.

The results show that time-series consistently improves MLLM-based RUL prediction across the evaluated models, yielding lower error and more stable performance.

The magnitude of the benefit depends on model capacity, indicating that is most effective when the underlying MLLM is able to exploit the retrieved evidence.

The study highlights the importance of considering the limitations of MLLM-based RUL estimation and the need for further research in this area.

The results of the study have implications for the development of more accurate and reliable prognostic systems, which can lead to improved maintenance and reduced downtime in various industries.

The study also contributes to the understanding of the role of time-series in improving multimodal prognostic reasoning and highlights the potential of this approach for future research.

The study shows that time-series RAG is a promising mechanism for improving multimodal prognostic reasoning, while also highlighting the current limitations of MLLM-based RUL estimation in practical PHM settings.

The proposed framework has the potential to improve the accuracy and reliability of RUL estimation in various domains, such as aerospace and automotive.

The study also highlights the importance of considering the limitations of MLLM-based RUL estimation and the need for further research in this area.

The results of the study have implications for the development of more accurate and reliable prognostic systems, which can lead to improved maintenance and reduced downtime in various industries.

The study also contributes to the understanding of the role of time-series in improving multimodal prognostic reasoning and highlights the potential of this approach for future research.

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