LLM-guided concepts unlock interpretable time-series forecasting
ConceptTS addresses a critical pain point in time-series forecasting: the inability to explain why models make specific predictions. By anchoring forecasts to human-readable concepts extracted via LLM guidance, the framework bridges the gap between predictive accuracy and interpretability without requiring manual annotation. This matters for regulated domains like finance and healthcare where practitioners must justify model outputs. The approach signals a broader shift toward concept-based bottlenecks as a scalable path to transparency, potentially influencing how future forecasting systems balance performance with auditability.
Modelwire context
ExplainerConceptTS sidesteps the usual cost of interpretability by using LLMs to extract concepts automatically rather than requiring domain experts to label them upfront. The key novelty is that the framework doesn't sacrifice forecast accuracy to achieve explainability, which prior concept-based approaches often did.
This connects directly to the calibration work from earlier this week on sequential prediction systems. That research showed that exact truthfulness and operational completeness cannot coexist in forecasting pipelines. ConceptTS addresses the complementary problem: once you have a forecast, how do you make the reasoning transparent without rebuilding the model? The temporal transformer work on COPD prediction also shares the constraint that explanations matter in clinical settings, but ConceptTS solves it at the model level rather than through architectural choice. The difference is important: ConceptTS is about making any forecaster auditable after training, whereas the COPD approach baked interpretability into the data pipeline.
If ConceptTS maintains within 2-3% accuracy of black-box baselines on standard benchmarks (ETTh1, Weather, Electricity) while producing concepts that domain experts can validate without retraining, the approach scales beyond toy datasets. If accuracy drops more than 5% or concepts require manual curation to be useful, the LLM guidance is doing less work than claimed.
Coverage we drew on
- Truthful Calibration Measures for Sequential Prediction · arXiv cs.LG
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Modelwire summarizes, we don’t republish. arXiv cs.LG originally reported this story as “ConceptTS: LLM-Guided Concept Bottlenecks for Interpretable Multivariate Time-Series Forecasting”. The full content lives on arxiv.org. If you’re a publisher and want a different summarization policy for your work, see our takedown page.