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Computer Science

arXiv preprints from January 1, 2026 through September 15, 2026 — 21:06:47 EST

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Posted in cs.DS · 2026-01-07 · Flavio Chierichetti, Mirko Giacchini, Ravi Kumar, Silvio Lattanzi, Alessandro Panconesi, Erasmo Tani, Andrew Tomkins

Learning Multinomial Logits in $O(n \log n)$ time

A Multinomial Logit (MNL) model is composed of a finite universe of items $[n]=\{1,..., n\}$, each assigned a positive weight. A query specifies an admissible subset -- called a slate -- and the model chooses one item from that slate with probability proportional to its weight. This query model is also known as the Plackett-Luce model...

💬 0 commentsarXiv:2601.04423v1PDF
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Posted in cs.SE · 2026-01-07 · Pradeep Kumar Sharma, Shantanu Godbole, Sarada Prasad Jena, Hritvik Shrivastava

Attention Mechanism and Heuristic Approach: Context-Aware File Ranking Using Multi-Head Self-Attention

The identification and ranking of impacted files within software reposi-tories is a key challenge in change impact analysis. Existing deterministic approaches that combine heuristic signals, semantic similarity measures, and graph-based centrality metrics have demonstrated effectiveness in nar-rowing candidate search spaces, yet their...

💬 0 commentsarXiv:2601.06185v1PDF
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Posted in cs.LG · 2026-01-07 · Nausherwan Malik, Zubair Khalid, Muhammad Faryad

Distribution-Guided and Constrained Quantum Machine Unlearning

Machine unlearning aims to remove the influence of specific training data from a learned model without full retraining. While recent work has begun to explore unlearning in quantum machine learning, existing approaches largely rely on fixed, uniform target distributions and do not explicitly control the trade-off between forgetting...

💬 0 commentsarXiv:2601.04413v2PDF
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Posted in cs.LG · 2026-01-07 · Ali Rad, Khashayar Filom, Darioush Keivan, Peyman Mohajerin Esfahani, Ehsan Kamalinejad

Rate or Fate? RLV$^\varepsilon$R: Reinforcement Learning with Verifiable Noisy Rewards

Reinforcement learning with verifiable rewards (RLVR) is a simple but powerful paradigm for training LLMs: sample a completion, verify it, and update. In practice, however, the verifier is almost never clean--unit tests probe only limited corner cases; human and synthetic labels are imperfect; and LLM judges (e.g., RLAIF) are noisy...

💬 0 commentsarXiv:2601.04411v1PDF
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Posted in cs.CV · 2026-01-07 · Yike Zhang, Eduardo Davalos, Dingjie Su, Ange Lou, Jack Noble

From Preoperative CT to Postmastoidectomy Mesh Construction: Mastoidectomy Shape Prediction for Cochlear Implant Surgery

Cochlear Implant (CI) surgery treats severe hearing loss by inserting an electrode array into the cochlea to stimulate the auditory nerve. An important step in this procedure is mastoidectomy, which removes part of the mastoid region of the temporal bone to provide surgical access. Accurate mastoidectomy shape prediction from...

💬 0 commentsarXiv:2601.04405v2PDF
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Posted in cs.CV · 2026-01-07 · Jusheng Zhang, Yijia Fan, Zimo Wen, Jian Wang, Keze Wang

3D-Agent:Tri-Modal Multi-Agent Collaboration for Scalable 3D Object Annotation

Driven by applications in autonomous driving robotics and augmented reality 3D object annotation presents challenges beyond 2D annotation including spatial complexity occlusion and viewpoint inconsistency Existing approaches based on single models often struggle to address these issues effectively We propose Tri MARF a novel framework...

💬 0 commentsarXiv:2601.04404v1PDF
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Posted in cs.CY · 2026-01-07 · Trevor De Clark, Yulia Bobkova, Ajay Kumar Shrestha

Balancing Usability and Compliance in AI Smart Devices: A Privacy-by-Design Audit of Google Home, Alexa, and Siri

This paper investigates the privacy and usability of AI-enabled smart devices commonly used by youth, focusing on Google Home Mini, Amazon Alexa, and Apple Siri. While these devices provide convenience and efficiency, they also raise privacy and transparency concerns due to their always-listening design and complex data management...

💬 0 commentsarXiv:2601.04403v2PDF
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Posted in cs.RO · 2026-01-07 · Arsyi Aziz, Peng Wei

Transformer-based Multi-agent Reinforcement Learning for Separation Assurance in Structured and Unstructured Airspaces

Conventional optimization-based metering depends on strict adherence to precomputed schedules, which limits the flexibility required for the stochastic operations of Advanced Air Mobility (AAM). In contrast, multi-agent reinforcement learning (MARL) offers a decentralized, adaptive framework that can better handle uncertainty,...

💬 0 commentsarXiv:2601.04401v1PDF
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Posted in cs.CY · 2026-01-07 · Molly Campbell, Mohamad Sheikho Al Jasem, Ajay Kumar Shrestha

Toward Youth-Centered Privacy-by-Design in Smart Devices: A Systematic Review

This literature review evaluates privacy-by-design frameworks, tools, and policies intended to protect youth in AI-enabled smart devices using a PRISMA-guided workflow. Sources from major academic and grey-literature repositories from the past decade were screened. The search identified 2,216 records; after deduplication and...

💬 0 commentsarXiv:2601.11598v2PDF
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Posted in cs.CY · 2026-01-07 · Molly Campbell, Trevor De Clark, Mohamad Sheikho Al Jasem, Sandhya Joshi, Ajay Kumar Shrestha

Convenience vs. Control: A Qualitative Study of Youth Privacy with Smart Voice Assistants

Smart voice assistants (SVAs) are embedded in the daily lives of youth, yet their privacy controls often remain opaque and difficult to manage. Through five semi-structured focus groups (N=26) with young Canadians (ages 16-24), we investigate how perceived privacy risks (PPR) and benefits (PPBf) intersect with algorithmic transparency...

💬 0 commentsarXiv:2601.04399v2PDF
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Posted in cs.CL · 2026-01-07 · Mason Kadem, Rong Zheng

Interpreting Transformers Through Attention Head Intervention

Neural networks are growing more capable on their own, but we do not understand their neural mechanisms. Understanding these mechanisms' decision-making processes, or mechanistic interpretability, enables (1) accountability and control in high-stakes domains, (2) the study of digital brains and the emergence of cognition, and (3)...

💬 0 commentsarXiv:2601.04398v4PDF
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Posted in cs.CV · 2026-01-07 · Mohammed Sami Khan, Fabiha Muniat, Rowzatul Zannat

Performance Analysis of Image Classification on Bangladeshi Datasets

Convolutional Neural Networks (CNNs) have demonstrated remarkable success in image classification tasks; however, the choice between designing a custom CNN from scratch and employing established pre-trained architectures remains an important practical consideration. In this work, we present a comparative analysis of a custom-designed...

💬 0 commentsarXiv:2601.04397v1PDF
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Posted in cs.CE · 2026-01-07 · Rebekah White, Rileigh Bandy, Teresa Portone

Inference in the presence of model-form uncertainties: Leveraging a prediction-oriented approach to improve uncertainty characterization

Bayesian inference is a popular approach to calibrating uncertainties, but it can underpredict such uncertainties when model misspecification is present, impacting its reliability to inform decision making. Recently, the statistics and machine learning communities have developed prediction-oriented inference approaches that provide...

💬 0 commentsarXiv:2601.04396v1PDF
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Posted in cs.IR · 2026-01-07 · Tomer Wullach, Ori Shapira, Amir DN Cohen

The Overlooked Role of Graded Relevance Thresholds in Multilingual Dense Retrieval

Dense retrieval models are typically fine-tuned with contrastive learning objectives that require binary relevance judgments, even though relevance is inherently graded. We analyze how graded relevance scores and the threshold used to convert them into binary labels affect multilingual dense retrieval. Using a multilingual dataset...

💬 0 commentsarXiv:2601.04395v1PDF
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Posted in cs.CL · 2026-01-07 · Sharanya Dasgupta, Arkaprabha Basu, Sujoy Nath, Swagatam Das

ARREST: Adversarial Resilient Regulation Enhancing Safety and Truth in Large Language Models

Human cognition, driven by complex neurochemical processes, oscillates between imagination and reality and learns to self-correct whenever such subtle drifts lead to hallucinations or unsafe associations. In recent years, LLMs have demonstrated remarkable performance in a wide range of tasks. However, they still lack human cognition...

💬 0 commentsarXiv:2601.04394v1PDF
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Posted in cs.AI · 2026-01-07 · Eren Kocadag, Seyed Sahand Mohammadi Ziabari, Ali Mohammed Mansoor Alsahag

Assessing the quality and coherence of word embeddings after SCM-based intersectional bias mitigation

Static word embeddings often absorb social biases from the text they learn from, and those biases can quietly shape downstream systems. Prior work that uses the Stereotype Content Model (SCM) has focused mostly on single-group bias along warmth and competence. We broaden that lens to intersectional bias by building compound...

💬 0 commentsarXiv:2601.04393v1PDF
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Posted in cs.LG · 2026-01-07 · Mohsen Jalaeian-Farimani, Xiong Xiong, Luca Bascetta

Enhanced-FQL($λ$), an Efficient and Interpretable RL with novel Fuzzy Eligibility Traces and Segmented Experience Replay

This paper introduces a fuzzy reinforcement learning framework, Enhanced-FQL($λ$), that integrates novel Fuzzified Eligibility Traces (FET) and Segmented Experience Replay (SER) into fuzzy Q-learning with the Fuzzified Bellman Equation (FBE) for continuous control. The proposed approach employs an interpretable fuzzy rule base instead...

💬 0 commentsarXiv:2601.04392v2PDF
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Posted in cs.AI · 2026-01-07 · Siyuan Huang, Yifan Zhou, Yutong Gao, Zi Yin, Juyang Bai, Xinxin Liu, Rama Chellappa, Chun Pong Lau, Cheng Peng, Sayan Nag, Shraman Pramanick

SciFig: Towards Automating Editable Figure Generation for Scientific Papers

High-quality methodology figures are central to scientific communication, yet they remain difficult and time-consuming to create. Such figures must distill a method's components and information flow into a clear, revisable diagram as the paper evolves. Existing methodology diagram automation systems typically face a trade-off between...

💬 0 commentsarXiv:2601.04390v3PDF
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Posted in cs.CL · 2026-01-07 · Iago Alves Brito, Walcy Santos Rezende Rios, Julia Soares Dollis, Diogo Fernandes Costa Silva, Arlindo Rodrigues Galvão Filho

Safety Is Not Universal: The Selective Safety Trap in LLM Alignment

Current safety evaluations of large language models (LLMs) create a dangerous illusion of universal protection by aggregating harms under generic categories such as "Identity Hate", obscuring vulnerabilities toward specific populations. In this work, we expose the Selective Safety Trap: a systemic failure mode where models robustly...

💬 0 commentsarXiv:2601.04389v3PDF
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Posted in cs.CL · 2026-01-07 · Nesta Midavaine, Christian A. Naesseth, Grigory Bartosh

Towards Latent Diffusion Suitable For Text

Language diffusion models aim to improve sampling speed and coherence over autoregressive LLMs. We introduce Neural Flow Diffusion Models for language generation, an extension of NFDM that enables the straightforward application of continuous diffusion models to discrete state spaces. NFDM learns a multivariate forward process from...

💬 0 commentsarXiv:2601.16220v1PDF
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Posted in cs.AI · 2026-01-07 · Priyaranjan Pattnayak, Sanchari Chowdhuri, Amit Agarwal, Hitesh Laxmichand Patel

LLM-Guided Lifecycle-Aware Clustering of Multi-Turn Customer Support Conversations

Clustering customer chat data is vital for cloud providers handling multi service queries. Traditional methods struggle with overlapping concerns and create broad, static clusters that degrade over time. Reclustering disrupts continuity, making issue tracking difficult. We propose an adaptive system that segments multi turn chats into...

💬 0 commentsarXiv:2601.04388v1PDF
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Posted in cs.AI · 2026-01-07 · Stuti Sinha, Himanshu Kumar, Aryan Raju Mandapati, Rakshit Sakhuja, Dhruv Kumar

The Language of Bargaining: Linguistic Effects in LLM Negotiations

Negotiation is a core component of social intelligence, requiring agents to balance strategic reasoning, cooperation, and social norms. Recent work shows that LLMs can engage in multi-turn negotiation, yet nearly all evaluations occur exclusively in English. Using controlled multi-agent simulations across Ultimatum, Buy-Sell, and...

💬 0 commentsarXiv:2601.04387v2PDF
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Posted in cs.GR · 2026-01-07 · Zulkhuu Tuya, Ignacio Alzugaray, Nicholas Fry, Andrew J. Davison

Radiant Foam Rendering on a Graph Processor

Many emerging many-core accelerators replace a single large device memory with hundreds to thousands of lightweight cores, each owning only a small local SRAM and exchanging data via explicit on-chip communication. This organization offers high aggregate bandwidth, but it breaks a key assumption behind many volumetric rendering...

💬 0 commentsarXiv:2601.04382v2PDF
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Posted in cs.CV · 2026-01-07 · Maxim Clouser, Kia Khezeli, John Kalantari

Few-Shot LoRA Adaptation of a Flow-Matching Foundation Model for Cross-Spectral Object Detection

Foundation models for vision are predominantly trained on RGB data, while many safety-critical applications rely on non-visible modalities such as infrared (IR) and synthetic aperture radar (SAR). We study whether a single flow-matching foundation model pre-trained primarily on RGB images can be repurposed as a cross-spectral...

💬 0 commentsarXiv:2601.04381v1PDF