English
Related papers

Related papers: Spark Policy Toolkit: Semantic Contracts and Scala…

200 papers

Vision-language models remain susceptible to multimodal jailbreaks and over-refusal because safety hinges on both visual evidence and user intent, while many alignment pipelines supervise only the final response. To address this, we present…

Machine Learning · Computer Science 2026-03-04 Zixuan Xu , Tiancheng He , Huahui Yi , Kun Wang , Xi Chen , Gongli Xi , Qiankun Li , Kang Li , Yang Liu , Zhigang Zeng

Automated unit test generation for C remains a formidable challenge due to the semantic gap between high-level program intent and the rigid syntactic constraints of pointer arithmetic and manual memory management. While Large Language…

Software Engineering · Computer Science 2026-02-19 Jaid Monwar Chowdhury , Chi-An Fu , Reyhaneh Jabbarvand

Generative recommendation treats next-item prediction as autoregressive item-identifier generation. Specifically, items are encoded as semantic identifiers (SIDs), which are short coarse-to-fine token sequences whose early tokens capture…

Artificial Intelligence · Computer Science 2026-05-19 Zaiyi Zheng , Guanghui Min , Yaochen Zhu , Liang Wu , Liangjie Hong , Chen Chen , Jundong Li

In target-driven navigation and autonomous exploration, reasonable prediction of unknown regions is crucial for efficient navigation and environment understanding. Existing methods mostly focus on single objects or geometric occupancy maps,…

Robotics · Computer Science 2025-09-26 Jiaxuan He , Jiamei Ren , Chongshang Yan , Wenjie Song

The distributed data analytic system -- Spark is a common choice for processing massive volumes of heterogeneous data, while it is challenging to tune its parameters to achieve high performance. Recent studies try to employ auto-tuning…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-09-06 Yang Li , Huaijun Jiang , Yu Shen , Yide Fang , Xiaofeng Yang , Danqing Huang , Xinyi Zhang , Wentao Zhang , Ce Zhang , Peng Chen , Bin Cui

The problem of synthesizing stochastic explicit model predictive control policies is known to be quickly intractable even for systems of modest complexity when using classical control-theoretic methods. To address this challenge, we present…

Machine Learning · Computer Science 2022-05-24 Ján Drgoňa , Sayak Mukherjee , Aaron Tuor , Mahantesh Halappanavar , Draguna Vrabie

Conflict detection in policy languages is a solved problem -- as long as every rule condition is a crisp Boolean predicate. BDDs, SMT solvers, and NetKAT all exploit that assumption. But a growing class of routing and access-control systems…

Machine Learning · Computer Science 2026-03-20 Xunzhuo Liu , Hao Wu , Huamin Chen , Bowei He , Xue Liu

We study the problem of how to construct a set of policies that can be composed together to solve a collection of reinforcement learning tasks. Each task is a different reward function defined as a linear combination of known features. We…

Artificial Intelligence · Computer Science 2021-12-13 Tom Zahavy , Andre Barreto , Daniel J Mankowitz , Shaobo Hou , Brendan O'Donoghue , Iurii Kemaev , Satinder Singh

Learning from imbalanced data is among the most challenging areas in contemporary machine learning. This becomes even more difficult when considered the context of big data that calls for dedicated architectures capable of high-performance…

Machine Learning · Computer Science 2022-11-16 William C. Sleeman , Bartosz Krawczyk

Recent advancements in aligning large language models via reinforcement learning have achieved remarkable gains in solving complex reasoning problems, but at the cost of expensive on-policy rollouts and limited exploration of diverse…

Large language models exhibit strong reasoning capabilities, yet often rely on shortcuts such as surface pattern matching and answer memorization rather than genuine logical inference. We propose Shortcut-Aware Reasoning Training (SART), a…

Computation and Language · Computer Science 2026-03-24 Hongyu Cao , Kunpeng Liu , Dongjie Wang , Yanjie Fu

LLM code-generation pipelines often sample multiple candidates and select one final answer without access to a complete oracle. Existing pipelines mix textual voting, ranking, and execution-based agreement, but the relative contribution of…

Software Engineering · Computer Science 2026-05-12 Shan Jiang , Zijian Yi , Chenguang Zhu

Rule-based systems remain central in safety-critical domains but often struggle with scalability, brittleness, and goal misspecification. These limitations can lead to reward hacking and failures in formal verification, as AI systems tend…

Logic in Computer Science · Computer Science 2026-05-12 Zainab Rehan , Christian Medeiros Adriano , Sona Ghahremani , Holger Giese

Task-oriented semantic parsing models typically have high resource requirements: to support new ontologies (i.e., intents and slots), practitioners crowdsource thousands of samples for supervised fine-tuning. Partly, this is due to the…

Computation and Language · Computer Science 2021-04-16 Shrey Desai , Akshat Shrivastava , Alexander Zotov , Ahmed Aly

Large batch jobs such as Deep Learning, HPC and Spark require far more computational resources and higher cost than conventional online service. Like the processing of other time series data, these jobs possess a variety of characteristics…

Machine Learning · Computer Science 2020-10-13 Peng Gao

Interpretability in machine learning is critical for the safe deployment of learned policies across legally-regulated and safety-critical domains. While gradient-based approaches in reinforcement learning have achieved tremendous success in…

Visuomotor policies often suffer from perceptual challenges, where visual differences between training and evaluation environments degrade policy performance. Policies relying on state estimations, like 6D pose, require task-specific…

Robotics · Computer Science 2025-10-07 Yunchu Zhang , Shubham Mittal , Zhengyu Zhang , Liyiming Ke , Siddhartha Srinivasa , Abhishek Gupta

Predictive maintenance in complex systems is often complicated by the heterogeneity and redundancy of monitored variables,which can obscure fault-relevant information and reduce model interpretability. This work proposes a semantic feature…

Artificial Intelligence · Computer Science 2026-05-15 Emilio Mastriani , Alessandro Costa , Federico Incardona , Kevin Munari , Sebastiano Spinello

This paper introduces Sparklen, a statistical learning toolkit for Hawkes processes in Python, designed to bring together efficiency and ease of use. The purpose of this package is to provide the Python community with a complete suite of…

Methodology · Statistics 2025-03-31 Romain Edmond Lacoste

Bridging continuous perceptual signals and discrete symbolic reasoning is a fundamental challenge in AI systems that must operate under uncertainty. We present a neuro-symbolic framework that explicitly models and propagates uncertainty…

Artificial Intelligence · Computer Science 2025-11-19 Jiahao Wu , Shengwen Yu