Energy
A New Perspective On AI Safety Through Control Theory Methodologies
Ullrich, Lars, Zimmer, Walter, Greer, Ross, Graichen, Knut, Knoll, Alois C., Trivedi, Mohan
While artificial intelligence (AI) is advancing rapidly and mastering increasingly complex problems with astonishing performance, the safety assurance of such systems is a major concern. Particularly in the context of safety-critical, real-world cyber-physical systems, AI promises to achieve a new level of autonomy but is hampered by a lack of safety assurance. While data-driven control takes up recent developments in AI to improve control systems, control theory in general could be leveraged to improve AI safety. Therefore, this article outlines a new perspective on AI safety based on an interdisciplinary interpretation of the underlying data-generation process and the respective abstraction by AI systems in a system theory-inspired and system analysis-driven manner. In this context, the new perspective, also referred to as data control, aims to stimulate AI engineering to take advantage of existing safety analysis and assurance in an interdisciplinary way to drive the paradigm of data control. Following a top-down approach, a generic foundation for safety analysis and assurance is outlined at an abstract level that can be refined for specific AI systems and applications and is prepared for future innovation.
When Will It Fail?: Anomaly to Prompt for Forecasting Future Anomalies in Time Series
Park, Min-Yeong, Lee, Won-Jeong, Kim, Seong Tae, Park, Gyeong-Moon
Recently, forecasting future abnormal events has emerged as an important scenario to tackle real-world necessities. However, the solution of predicting specific future time points when anomalies will occur, known as Anomaly Prediction (AP), remains under-explored. Existing methods dealing with time series data fail in AP, focusing only on immediate anomalies or failing to provide precise predictions for future anomalies. To address the AP task, we propose a novel framework called Anomaly to Prompt (A2P), comprised of Anomaly-Aware Forecasting (AAF) and Synthetic Anomaly Prompting (SAP). To enable the forecasting model to forecast abnormal time points, we adopt a strategy to learn the relationships of anomalies. For the robust detection of anomalies, our proposed SAP introduces a learnable Anomaly Prompt Pool (APP) that simulates diverse anomaly patterns using signal adaptive prompt. Comprehensive experiments on multiple real-world datasets demonstrate the superiority of A2P over state-of-the-art methods, showcasing its ability to predict future anomalies. Our implementation code is available at https://github.com/KU-VGI/AP.
Metadata, Wavelet, and Time Aware Diffusion Models for Satellite Image Super Resolution
Sigillo, Luigi, Giamba, Renato, Comminiello, Danilo
The acquisition of high-resolution satellite imagery is often constrained by the spatial and temporal limitations of satellite sensors, as well as the high costs associated with frequent observations. These challenges hinder applications such as environmental monitoring, disaster response, and agricultural management, which require fine-grained and high-resolution data. In this paper, we propose MWT-Diff, an innovative framework for satellite image super-resolution (SR) that combines latent diffusion models with wavelet transforms to address these challenges. At the core of the framework is a novel metadata-, wavelet-, and time-aware encoder (MWT-Encoder), which generates embeddings that capture metadata attributes, multi-scale frequency information, and temporal relationships. The embedded feature representations steer the hierarchical diffusion dynamics, through which the model progressively reconstructs high-resolution satellite imagery from low-resolution inputs. This process preserves critical spatial characteristics including textural patterns, boundary discontinuities, and high-frequency spectral components essential for detailed remote sensing analysis. The comparative analysis of MWT-Diff across multiple datasets demonstrated favorable performance compared to recent approaches, as measured by standard perceptual quality metrics including FID and LPIPS.
Masked Gated Linear Unit
Tajima, Yukito, Inoue, Nakamasa, Sekikawa, Yusuke, Sato, Ikuro, Yokota, Rio
Gated Linear Units (GLUs) have become essential components in the feed-forward networks of state-of-the-art Large Language Models (LLMs). However, they require twice as many memory reads compared to feed-forward layers without gating, due to the use of separate weight matrices for the gate and value streams. To address this bottleneck, we introduce Masked Gated Linear Units (MGLUs), a novel family of GLUs with an efficient kernel implementation. The core contribution of MGLUs include: (1) the Mixture of Element-wise Gating (MoEG) architecture that learns multiple binary masks, each determining gate or value assignments at the element level on a single shared weight matrix resulting in reduced memory transfer, and (2) FlashMGLU, a hardware-friendly kernel that yields up to a 19.7 $\times$ inference-time speed-up over a naive PyTorch MGLU and is 47% more memory-efficient and 34% faster than standard GLUs despite added architectural complexity on an RTX5090 GPU. In LLM experiments, the Swish-activated variant SwiMGLU preserves its memory advantages while matching - or even surpassing - the downstream accuracy of the SwiGLU baseline.
Spectra 1.1: Scaling Laws and Efficient Inference for Ternary Language Models
Vaidhya, Tejas, Kaushal, Ayush, Jain, Vineet, Harpin, Francis Couture, Shishodia, Prashant, Behbahani, Majid, Nevmyvaka, Yuriy, Rish, Irina
Large language models (LLMs) are increasingly used across research and industry applications, yet their inference efficiency remains a significant challenge. As the computational power of modern GPU architectures continuously improves, their memory bandwidth and capacity have not scaled proportionally, creating a critical bottleneck during inference. To address this, we investigate ternary language models (TriLMs) that employ quantization-aware training to significantly reduce memory requirements. We first analyze the scalability of TriLMs by conducting a scaling law analysis, revealing that TriLMs benefit more from increasing training data than from scaling model parameters. Based on this observation, we introduce Spectra-1.1, an open suite of TriLMs trained on up to 1.2 trillion tokens, demonstrating sustained performance gains at scale. Furthermore, to improve inference efficiency, we propose novel 2-bit and 1.6-bit packing schemes for ternary weights, which demonstrate accelerated inference across various CPU architectures. Also, building on the 2-bit packing, we develop a GPU kernel called TriRun that accelerates end-to-end model inference by up to 5 times compared to floating-point baselines. To encourage further exploration and development of TriLMs, we will release the Spectra-1.1 suite and TriRun inference kernels. Overall, our work lays the foundation for building and deploying efficient LLMs, providing a valuable resource for the research community.
Momentum-based Accelerated Algorithm for Distributed Optimization under Sector-Bound Nonlinearity
Doostmohammadian, Mohammadreza, Rabiee, Hamid R.
Distributed optimization advances centralized machine learning methods by enabling parallel and decentralized learning processes over a network of computing nodes. This work provides an accelerated consensus-based distributed algorithm for locally non-convex optimization using the gradient-tracking technique. The proposed algorithm (i) improves the convergence rate by adding momentum towards the optimal state using the heavy-ball method, while (ii) addressing general sector-bound nonlinearities over the information-sharing network. The link nonlinearity includes any sign-preserving odd sector-bound mapping, for example, log-scale data quantization or clipping in practical applications. For admissible momentum and gradient-tracking parameters, using perturbation theory and eigen-spectrum analysis, we prove convergence even in the presence of sector-bound nonlinearity and for locally non-convex cost functions. Further, in contrast to most existing weight-stochastic algorithms, we adopt weight-balanced (WB) network design. This WB design and perturbation-based analysis allow to handle dynamic directed network of agents to address possible time-varying setups due to link failures or packet drops.
Quantum Neural Networks for Wind Energy Forecasting: A Comparative Study of Performance and Scalability with Classical Models
Hangun, Batuhan, Altun, Oguz, Eyecioglu, Onder
Quantum Neural Networks (QNNs), a prominent approach in Quantum Machine Learning (QML), are emerging as a powerful alternative to classical machine learning methods. Recent studies have focused on the applicability of QNNs to various tasks, such as time-series forecasting, prediction, and classification, across a wide range of applications, including cybersecurity and medical imaging. With the increased use of smart grids driven by the integration of renewable energy systems, machine learning plays an important role in predicting power demand and detecting system disturbances. This study provides an in-depth investigation of QNNs for predicting the power output of a wind turbine. We assess the predictive performance and simulation time of six QNN configurations that are based on the Z Feature Map for data encoding and varying ansatz structures. Through detailed cross-validation experiments and tests on an unseen hold-out dataset, we experimentally demonstrate that QNNs can achieve predictive performance that is competitive with, and in some cases marginally better than, the benchmarked classical approaches. Our results also reveal the effects of dataset size and circuit complexity on predictive performance and simulation time. We believe our findings will offer valuable insights for researchers in the energy domain who wish to incorporate quantum machine learning into their work.
Stabilization of industrial processes with time series machine learning
Anoshin, Matvei, Tsurkan, Olga, Lopatkin, Vadim, Fedichkin, Leonid
An application of machine learning to the industrial processes stabilization is an open problem which promises a huge potential benefit to the such critical industries as metals and energy development if solved. Classical optimization methods, such as finite-horizon markov decision processes [1], non-linear programming reformulation of control [2] and point-wise optimization [3] are frequently employed in order to achieve better stability of time series process, successfully improving production quality, minimizing expenses and manufacturing devices deficiency with near-future planing or real-time optimization. Machine learning, known for its prominent results in solution of enterprise problems [4], became widely applied to the time series prediction and generation after recent advances in such fields as natural language processing, due to the similarity aforementioned tasks in their time dependent recurrent nature [5]. Thus, contemporary time series modeling is performed with long short-term memory (LSTM) models [6] and Transformers [7], incorporating different attention strategies. Currently, state-of-the-art approaches to ML-driven optimization include an application of reinforcement learning, but for time series problems, the usual focus stays on approximation of the industrial process as a dynamic system on the basis of recurrent neural network (RNN), with such methods as recurrent stabilization control [8, 9].
Leveraging In-Context Learning for Political Bias Testing of LLMs
Haller, Patrick, Vamvas, Jannis, Sennrich, Rico, Jäger, Lena A.
A growing body of work has been querying LLMs with political questions to evaluate their potential biases. However, this probing method has limited stability, making comparisons between models unreliable. In this paper, we argue that LLMs need more context. We propose a new probing task, Questionnaire Modeling (QM), that uses human survey data as in-context examples. We show that QM improves the stability of question-based bias evaluation, and demonstrate that it may be used to compare instruction-tuned models to their base versions. Experiments with LLMs of various sizes indicate that instruction tuning can indeed change the direction of bias. Furthermore, we observe a trend that larger models are able to leverage in-context examples more effectively, and generally exhibit smaller bias scores in QM. Data and code are publicly available.
Exploring the Capabilities of the Frontier Large Language Models for Nuclear Energy Research
Almeldein, Ahmed, Alnaggar, Mohammed, Archibald, Rick, Beck, Tom, Biswas, Arpan, Bostelmann, Rike, Brewer, Wes, Bryan, Chris, Calle, Christopher, Celik, Cihangir, Chahal, Rajni, Choi, Jong Youl, Chowdhury, Arindam, Cianciosa, Mark, Curtis, Franklin, Davidson, Gregory, De Pascuale, Sebastian, Fassino, Lisa, Gainaru, Ana, Ghai, Yashika, Gibson, Luke, Gong, Qian, Greulich, Christopher, Greenwood, Scott, Hauck, Cory, Hassan, Ehab, Juneja, Rinkle, Kang, Soyoung, Klasky, Scott, Kumar, Atul, Kumar, Vineet, Laiu, Paul, Lear, Calvin, Lin, Yan-Ru, McConnell, Jono, Oz, Furkan, Pillai, Rishi, Raj, Anant, Ramuhalli, Pradeep, Romedenne, Marie, Sabatino, Samantha, Salcedo-Pérez, José, See, Nathan D., Sircar, Arpan, Thankur, Punam, Younkin, Tim, Yu, Xiao-Ying, Jain, Prashant, Evans, Tom, Balaprakash, Prasanna
The AI for Nuclear Energy workshop at Oak Ridge National Laboratory evaluated the potential of Large Language Models (LLMs) to accelerate fusion and fission research. Fourteen interdisciplinary teams explored diverse nuclear science challenges using ChatGPT, Gemini, Claude, and other AI models over a single day. Applications ranged from developing foundation models for fusion reactor control to automating Monte Carlo simulations, predicting material degradation, and designing experimental programs for advanced reactors. Teams employed structured workflows combining prompt engineering, deep research capabilities, and iterative refinement to generate hypotheses, prototype code, and research strategies. Key findings demonstrate that LLMs excel at early-stage exploration, literature synthesis, and workflow design, successfully identifying research gaps and generating plausible experimental frameworks. However, significant limitations emerged, including difficulties with novel materials designs, advanced code generation for modeling and simulation, and domain-specific details requiring expert validation. The successful outcomes resulted from expert-driven prompt engineering and treating AI as a complementary tool rather than a replacement for physics-based methods. The workshop validated AI's potential to accelerate nuclear energy research through rapid iteration and cross-disciplinary synthesis while highlighting the need for curated nuclear-specific datasets, workflow automation, and specialized model development. These results provide a roadmap for integrating AI tools into nuclear science workflows, potentially reducing development cycles for safer, more efficient nuclear energy systems while maintaining rigorous scientific standards.