Researchers have developed SkewD, a new algorithm designed for causal discovery in location-scale noise models (LSNMs) that are robust to skewed noise distributions. Traditional methods often assume symmetric noise, like the normal distribution, which can lead to unreliable inferences when noise is skewed, a common scenario in real-world data. SkewD extends existing frameworks to handle skew-normal settings, employing a combination of heuristic search and an expectation conditional maximization algorithm for parameter estimation. Experimental evaluations on synthetic and benchmark datasets demonstrate SkewD's strong performance and its ability to maintain robustness even under high levels of skewness. AI
IMPACT Enhances the reliability of causal discovery in complex, real-world datasets with non-ideal noise distributions.
RANK_REASON The item is a research paper detailing a new algorithm for causal discovery. [lever_c_demoted from research: ic=1 ai=1.0]
- arXiv
- Daniel Klippert
- expectation conditional maximization algorithm
- Hugging Face
- Location-Scale Noise Models
- normal distribution
- skew-normal setting
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