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Counterfactual Explainable AI (XAI) Method for Deep Learning-Based Multivariate Time Series Classification

arXiv.org Machine Learning

Recent advances in deep learning have improved multivariate time series (MTS) classification and regression by capturing complex patterns, but their lack of transparency hinders decision-making. Explainable AI (XAI) methods offer partial insights, yet often fall short of conveying the full decision space. Counterfactual Explanations (CE) provide a promising alternative, but current approaches typically prioritize either accuracy, proximity or sparsity -- rarely all -- limiting their practical value. To address this, we propose CONFETTI, a novel multi-objective CE method for MTS. CONFETTI identifies key MTS subsequences, locates a counterfactual target, and optimally modifies the time series to balance prediction confidence, proximity and sparsity. This method provides actionable insights with minimal changes, improving interpretability, and decision support. CONFETTI is evaluated on seven MTS datasets from the UEA archive, demonstrating its effectiveness in various domains. CONFETTI consistently outperforms state-of-the-art CE methods in its optimization objectives, and in six other metrics from the literature, achieving $\geq10\%$ higher confidence while improving sparsity in $\geq40\%$.


Quantum and classical computers handle time differently. What does that mean for AI?

#artificialintelligence

As humans, we take time for granted. We're born into an innate understanding of the passage of events because it's essential to our survival. But AI suffers from no such congenital condition. Robots do not understand the concept of time. State of the art AI systems only understand time as an implicit construct (we program it to output time relevant to a clock) or as an explicit representation of mathematics (we use the time it takes to perform certain calculations to instruct its understanding of the passage of events).


Announcing Confetti: A Vision for the Future of Artificial Intelligence in the Real World

#artificialintelligence

Nowadays the term artificial intelligence (AI) has become synonymous with "technology of the future." Since 2012, when the neural networks trounced the ImageNet image classification challenge, machine learning has enabled extraordinary advances across diverse domains such as vision, translation, and speech recognition. We have seen a widespread democratization of the knowledge needed to get started in AI. Cheap consumer hardware, easy access to datasets, and the prevalence of powerful open-source frameworks such as PyTorch and TensorFlow have significantly reduced the barrier to entry. It has become clear that AI is going to transform the fabric of society in ways never seen before.


The Home-Vacuum Event

AI Magazine

After a summary of the rules, we outline the high and low points of the competition. Devising a sweep pattern on a bounded established in past contests. The only wrinkle uncluttered surface to ensure complete coverage concerned bag capacity: if the robot encountered is a well-formed and solved problem. A domestic or small office venue offered Points were awarded for cleaning the messes more complexity. The areas were smaller and (or just moving over them) and making contained more furniture.