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Yihang Wang

7 accepted papers

2026

Unlocking the Value of Text: Event-Driven Reasoning and Multi-Level Alignment for Time Series Forecasting

ICLR 2026poster

Existing time series forecasting methods primarily rely on the numerical data itself. However, real-world time series exhibit complex patterns associated with multimodal information, making them difficult to predict with numerical data alone. While several multimodal time series forecasting methods…

Cited by 0SourcecodeScholar
2025

CATCH: Channel-Aware Multivariate Time Series Anomaly Detection via Frequency Patching

ICLR 2025poster

Anomaly detection in multivariate time series is challenging as heterogeneous subsequence anomalies may occur. Reconstruction-based methods, which focus on learning normal patterns in the frequency domain to detect diverse abnormal subsequences, achieve promising results, while still falling short o…

2025

LightGTS: A Lightweight General Time Series Forecasting Model

ICML 2025poster

Existing works on general time series forecasting build foundation models with heavy model parameters through large-scale multi-source pretraining. These models achieve superior generalization ability across various datasets at the cost of significant computational burdens and limitations in resourc…

Cited by 0SourcePDFScholar
2025

MDPO: Customized Direct Preference Optimization with a Metric-based Sampler for Question and Answer Generation

COLING 2025main

With the extensive use of large language models, automatically generating QA datasets for domain-specific fine-tuning has become crucial. However, considering the multifaceted demands for readability, diversity, and comprehensiveness of QA data, current methodologies fall short in producing high-qua…

2025

QUITO-X: A New Perspective on Context Compression from the Information Bottleneck Theory

EMNLP 2025

Generative large language models ( LLMs) have achieved remarkable success in various industrial applications, owing to their promising In-Context Learning capabilities. However, the issue of long context in complex tasks poses a significant barrier to their wider adoption, manifested in two main asp

Cited by 0SourcePDFScholar
2025

Towards a General Time Series Forecasting Model with Unified Representation and Adaptive Transfer

ICML 2025poster

With the growing availability of multi-domain time series data, there is an increasing demand for general forecasting models pre-trained on multi-source datasets to support diverse downstream prediction scenarios. Existing time series foundation models primarily focus on scaling up pre-training data…

Cited by 0SourcePDFScholar
2024

Pathformer: Multi-scale Transformers with Adaptive Pathways for Time Series Forecasting

ICLR 2024poster

Transformers for time series forecasting mainly model time series from limited or fixed scales, making it challenging to capture different characteristics spanning various scales. We propose Pathformer, a multi-scale Transformer with adaptive pathways. It integrates both temporal resolution and temp…