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Computer Science

arXiv preprints from January 1, 2026 through September 23, 2026 — 12:36:35 EST

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Posted in cs.AI · 2026-01-15 · Tingyue Pan, Jie Ouyang, Mingyue Cheng, Qingchuan Li, Zirui Liu, Daoyu Wang, Mingfan Pan, Shuo Yu, Qi Liu

PaperScout: An Autonomous Agent for Academic Paper Search with Process-Aware Sequence-Level Policy Optimization

Academic paper search is a fundamental task in scientific research, yet most existing approaches rely on rigid, predefined workflows that struggle with complex, conditional queries. To address this limitation, we propose PaperScout, an autonomous agent that reformulates paper search as a sequential decision-making process. Unlike...

💬 0 commentsarXiv:2601.10029v2PDF
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Posted in cs.IT · 2026-01-15 · Xi Zhong, Jörg Kliewer, Mingyue Ji

Fundamental Limits of Coded Polynomial Aggregation

Coded polynomial aggregation (CPA) enables the master to directly recover a weighted aggregation of polynomial evaluations without individually decoding each term, thereby reducing the number of required worker responses. In this paper, we extend CPA to straggler-aware distributed computing systems and introduce a straggler-aware CPA...

💬 0 commentsarXiv:2601.10028v2PDF
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Posted in cs.IR · 2026-01-15 · Boyang Xia, Ruilin Bao, Hanjun Jiang, Jun Wang, Wenwu Ou

STCRank: Spatio-temporal Collaborative Ranking for Interactive Recommender System at Kuaishou E-shop

As a popular e-commerce platform, Kuaishou E-shop provides precise personalized product recommendations to tens of millions of users every day. To better respond real-time user feedback, we have deployed an interactive recommender system (IRS) alongside our core homepage recommender system. This IRS is triggered by user click on...

💬 0 commentsarXiv:2601.10027v1PDF
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Posted in cs.AI · 2026-01-15 · Jinpeng Wang, Xinyu Jia, Wei Wei Heng, Yuquan Li, Binbin Shi, Qianlei Chen, Guannan Chen, Junxia Zhang, Yuyu Yin

Structured Personality Control and Adaptation for LLM Agents

Large Language Models (LLMs) are increasingly shaping human-computer interaction (HCI), from personalized assistants to social simulations. Beyond language competence, researchers are exploring whether LLMs can exhibit human-like characteristics that influence engagement, decision-making, and perceived realism. Personality, in...

💬 0 commentsarXiv:2601.10025v1PDF
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Posted in cs.LG · 2026-01-15 · Yanxin Liu, Yunqi Zhang

BPE: Behavioral Profiling Ensemble

In the field of machine learning, ensemble learning is widely recognized as a pivotal strategy for pushing the boundaries of predictive performance. Traditional static ensemble methods typically assign weights by treating each base learner as a whole, thereby overlooking that individual models exhibit varying competence across...

💬 0 commentsarXiv:2601.10024v2PDF
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Posted in cs.LG · 2026-01-15 · Olusegun Owoeye

Latent Structural Similarity Networks for Unsupervised Discovery in Multivariate Time Series

This paper proposes a task-agnostic discovery layer for multivariate time series that constructs a relational hypothesis graph over entities without assuming linearity, stationarity, or a downstream objective. The method learns window-level sequence representations using an unsupervised sequence-to-sequence autoencoder, aggregates...

💬 0 commentsarXiv:2601.18803v1PDF
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Posted in cs.CL · 2026-01-15 · Lingfei Qian, Mauro Giuffre, Yan Wang, Huan He, Qianqian Xie, Xuguang Ai, Xeuqing Peng, Fan Ma, Ruey-Ling Weng, Donald Wright, Adan Wang, Qingyu Chen, Vipina K. Keloth, Hua Xu

EHRNavigator: A Multi-Agent System for Patient-Level Clinical Question Answering over Heterogeneous Electronic Health Records

Clinical decision-making increasingly relies on timely and context-aware access to patient information within Electronic Health Records (EHRs), yet most existing natural language question-answering (QA) systems are evaluated solely on benchmark datasets, limiting their practical relevance. To overcome this limitation, we introduce...

💬 0 commentsarXiv:2601.10020v1PDF
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Posted in cs.LG · 2026-01-15 · Mykola Pinchuk

Time Aggregation Features for XGBoost Models

This paper studies time aggregation features for XGBoost models in click-through rate prediction. The setting is the Avazu click-through rate prediction dataset with strict out-of-time splits and a no-lookahead feature constraint. Features for hour H use only impressions from hours strictly before H. This paper compares a strong...

💬 0 commentsarXiv:2601.10019v1PDF
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Posted in cs.HC · 2026-01-15 · Hasti Sharifi, Homaira Huda Shomee, Sourav Medya, Debaleena Chattopadhyay

Empowering Older Adults in Digital Technology Use with Foundation Models

While high-quality technology support can assist older adults in using digital applications, many struggle to articulate their issues due to unfamiliarity with technical terminology and age-related cognitive changes. This study examines these communication challenges and explores AI-based approaches to mitigate them. We conducted a...

💬 0 commentsarXiv:2601.10018v1PDF
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Posted in cs.LG · 2026-01-15 · Boyi Liu, Zimu Zhou, Yongxin Tong

CAFEDistill: Learning Personalized and Dynamic Models through Federated Early-Exit Network Distillation

Personalized Federated Learning (PFL) enables collaboratively model training on decentralized, heterogeneous data while tailoring them to each client's unique distribution. However, existing PFL methods produce static models with a fixed tradeoff between accuracy and efficiency, limiting their applicability in environments where...

💬 0 commentsarXiv:2601.10015v1PDF
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Posted in cs.LG · 2026-01-15 · Yanhang Shi, Xiaoyu Wang, Houwei Cao, Jian Li, Yong Liu

PID-Guided Partial Alignment for Multimodal Decentralized Federated Learning

Multimodal decentralized federated learning (DFL) must support collaboration among agents that hold different modality subsets and often different model components, while operating over peer-to-peer (P2P) overlays without a coordinating server or a global network view. A key obstacle is that conventional multimodal training often...

💬 0 commentsarXiv:2601.10012v2PDF
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Posted in cs.AI · 2026-01-15 · Zerui Yang, Weichuan Wang, Yanwei Xu, Linqi Song, Yudai Matsuda, Wei Han, Bo Bai

Memo-SQL: Structured Decomposition and Experience-Driven Self-Correction for Training-Free NL2SQL

Existing NL2SQL systems face two critical limitations: (1) they rely on in-context learning with only correct examples, overlooking the rich signal in historical error-fix pairs that could guide more robust self-correction; and (2) test-time scaling approaches often decompose questions arbitrarily, producing near-identical SQL...

💬 0 commentsarXiv:2601.10011v1PDF
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Posted in cs.CV · 2026-01-15 · Zefan Zhang, Kehua Zhu, Shijie Jiang, Hongyuan Lu, Shengkai Sun, Tian Bai

VERHallu: Evaluating and Mitigating Event Relation Hallucination in Video Large Language Models

Video Large Language Models (VideoLLMs) exhibit various types of hallucinations. Existing research has primarily focused on hallucinations involving the presence of events, objects, and scenes in videos, while largely neglecting event relation hallucination. In this paper, we introduce a novel benchmark for evaluating the Video Event...

💬 0 commentsarXiv:2601.10010v1PDF
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Posted in cs.DB · 2026-01-15 · Evan Morris, Gaurav Vaidya, Phil Owen, Jason Reilly, Karamarie Fecho, Patrick Wang, Yaphet Kebede, E. Kathleen Carter, Chris Bizon

The "I" in FAIR: Translating from Interoperability in Principle to Interoperation in Practice

The FAIR (Findable, Accessible, Interoperable, and Reusable) data principles [1] promote the interoperability of scientific data by encouraging the use of persistent identifiers, standardized vocabularies, and formal metadata structures. Many resources are created using vocabularies that are FAIR-compliant and well-annotated, yet the...

💬 0 commentsarXiv:2601.10008v1PDF
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Posted in cs.LG · 2026-01-15 · Peter Jemley

Continuous-Depth Transformers with Learned Control Dynamics

We present a hybrid transformer architecture that replaces discrete middle layers with a continuous-depth Neural Ordinary Differential Equation (ODE) block, enabling inference-time control over generation attributes via a learned steering signal. Unlike standard transformers that process representations through fixed discrete layers,...

💬 0 commentsarXiv:2601.10007v1PDF
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Posted in cs.AI · 2026-01-15 · Jiujiu Chen, Weijun Zeng, Shaofeng Hu, Sihong Xie, Hui Xiong

GFM4GA: Graph Foundation Model for Group Anomaly Detection

Group anomaly detection is crucial in many network applications, but faces challenges due to diverse anomaly patterns. Motivated by the success of large language models (LLMs) in natural language processing, graph foundation models (GFMs) is proposed to handle few-shot learning task with fewer labeling efforts. GFMs have been...

💬 0 commentsarXiv:2601.10193v1PDF
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Posted in cs.CV · 2026-01-15 · Hu Gao, Xiaoning Lei, Xichen Xu, Xingjian Wang, Lizhuang Ma

From Physical Degradation Models to Task-Aware All-in-One Image Restoration

All-in-one image restoration aims to adaptively handle multiple restoration tasks with a single trained model. Although existing methods achieve promising results by introducing prompt information or leveraging large models, the added learning modules increase system complexity and hinder real-time applicability. In this paper, we...

💬 0 commentsarXiv:2601.10192v1PDF
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Posted in cs.AI · 2026-01-15 · Mathieu Cherpitel, Janne Luijten, Thomas Bäck, Camiel Verhamme, Martijn Tannemaat, Anna Kononova

How does downsampling affect needle electromyography signals? A generalisable workflow for understanding downsampling effects on high-frequency time series

Automated analysis of needle electromyography (nEMG) signals is emerging as a tool to support the detection of neuromuscular diseases (NMDs), yet the signals' high and heterogeneous sampling rates pose substantial computational challenges for feature-based machine-learning models, particularly for near real-time analysis. Downsampling...

💬 0 commentsarXiv:2601.10191v1PDF
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Posted in cs.CL · 2026-01-15 · Ziang Cui, Mengran Yu, Tianjiao Li, Chenyu Shi, Yingxuan Shi, Lusheng Zhang, Hongwei Lin

HOMURA: Taming the Sand-Glass for Time-Constrained LLM Translation via Reinforcement Learning

Large Language Models (LLMs) have achieved remarkable strides in multilingual translation but are hindered by a systemic cross-lingual verbosity bias, rendering them unsuitable for strict time-constrained tasks like subtitling and dubbing. Current prompt-engineering approaches struggle to resolve this conflict between semantic...

💬 0 commentsarXiv:2601.10187v2PDF
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Posted in cs.LG · 2026-01-15 · Kiattikun Chobtham

Reinforcement Learning to Discover a North-East Monsoon Index for Rainfall Prediction in Thailand

Accurately predicting long-term rainfall is challenging. Global climate indices, such as the El Niño-Southern Oscillation, are standard input features for machine learning. However, a significant gap persists regarding local-scale indices capable of improving predictive accuracy in specific regions of Thailand. This paper introduces a...

💬 0 commentsarXiv:2601.10181v5PDF
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Posted in cs.LG · 2026-01-15 · Chuyi Wang, Xiaohui Xie, Tongze Wang, Yong Cui

Bias in the Shadows: Explore Shortcuts in Encrypted Network Traffic Classification

Pre-trained models operating directly on raw bytes have achieved promising performance in encrypted network traffic classification (NTC), but often suffer from shortcut learning-relying on spurious correlations that fail to generalize to real-world data. Existing solutions heavily rely on model-specific interpretation techniques,...

💬 0 commentsarXiv:2601.10180v1PDF
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Posted in cs.DC · 2026-01-15 · Ziting Zhang, Kai Wan, Minquan Cheng, Shuo Shao, Giuseppe Caire

Distributed Linearly Separable Computation with Arbitrary Heterogeneous Data Assignment

Distributed linearly separable computation is a fundamental problem in large-scale distributed systems, requiring the computation of linearly separable functions over different datasets across distributed workers. This paper studies a heterogeneous distributed linearly separable computation problem, including one master and N...

💬 0 commentsarXiv:2601.10177v1PDF
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Posted in cs.LG · 2026-01-15 · Mingyu Zhao, Haoran Bai, Yu Tian, Bing Zhu, Hengliang Luo

CC-OR-Net: A Unified Framework for LTV Prediction through Structural Decoupling

Customer Lifetime Value (LTV) prediction, a central problem in modern marketing, is characterized by a unique zero-inflated and long-tail data distribution. This distribution presents two fundamental challenges: (1) the vast majority of low-to-medium value users numerically overwhelm the small but critically important segment of...

💬 0 commentsarXiv:2601.10176v2PDF
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Posted in cs.IT · 2026-01-15 · Ting Yang, Kai Wan, Minquan Cheng, Xinping Yi, Robert Caiming Qiu, Giuseppe Caire

A Low-Complexity Framework for Multi-access Coded Caching Systems with Arbitrary User-cache Access Topology

This paper studies the multi-access coded caching (MACC) problem with arbitrary user-cache access topology, which extends existing MACC models that rely on highly structured and combinatorially designed topologies. We consider a MACC system consisting of a single server, $Λ$ cache-nodes, and $K$ user-nodes. The server stores $N$...

💬 0 commentsarXiv:2601.10175v3PDF
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Posted in cs.CR · 2026-01-15 · Hao Li, Yankai Yang, G. Edward Suh, Ning Zhang, Chaowei Xiao

ReasAlign: Reasoning Enhanced Safety Alignment against Prompt Injection Attack

Large Language Models (LLMs) have enabled the development of powerful agentic systems capable of automating complex workflows across various fields. However, these systems are highly vulnerable to indirect prompt injection attacks, where malicious instructions embedded in external data can hijack agent behavior. In this work, we...

💬 0 commentsarXiv:2601.10173v1PDF