Temporal IR

IR: Information Retrieval

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6 papers in the last four weeks, against 2 the four weeks before. 0.1% of all new papers.

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Latest papers 44

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Geometry-Conditioned Fixed-Scaffold Encoders for Time-Warp Robust Sequence Retrieval
Sep 29, 2026Cassandra Yang, Yufan TangTemporal IR Invariant Representation Learning
New York University · Fudan University
READ-Bench: Benchmarking Historical Instance Retrieval for Time-Series Diagnosis
Sep 26, 2026Gerardo Pastrana, Haojun Li, Dhruv Mehta +4Temporal IR IR Evaluation
C3 AI · The Ohio State University
TEMPS: Temporal Sentence Embeddings for Temporal Information Retrieval
Sep 23, 2026Mourad Hassani, Julien Romero, Amel Bouzeghoub +1Sentence Embeddings Temporal IR
SAMOVAR, Télécom SudParis, Institut Polytechnique de Paris, France · Aldebaran Care, France
Q-TIE: A Lightweight and Generalizable Re-ranking Framework for Temporal Information Retrieval
Sep 20, 2026Soyeon Kim, Hyunjin Kim, JinYeong Bak +1Temporal IR
Korea Advanced Institute of Science and Technology · Sungkyunkwan University
What Should an Agent Forget? Separating What Is Stored from What Is Used
Sep 9, 2026Yuhang Li, Yuchen LiPersistent Memory for Language Models Temporal IR
East China Normal University Shanghai, China
Reproducing Omitted Temporal Expressions in Japanese News for Retrieval-Augmented Applications
Sep 9, 2026Tomoaki Yasuda, Shotaro IshiharaTemporal IR Document Information Extraction
Kagawa University · Nikkei Inc.
EgoCITE: Context-Augmented Indexing and Time-Aware Retrieval for Long-Horizon Egocentric Memory
Aug 12, 2026Le Zhang, Ke SunTemporal IR Multimodal QA
University of Michigan, Ann Arbor
Temporal Misgrounding in Legal RAG: A Versioned-Corpus Benchmark for French Tax Law
Aug 10, 2026Rose Cymbler, Daniel Guez, Laurent FabreTemporal IR Legal QA
Talia, Paris, France · Databricks
Caching for the Future: Scrub Jay Episodic Memory Principles for Agent Memory Systems
Aug 5, 2026Kartikey Singh Bhandari, Aarya Wadhwani, Dhruv Kumar +1Temporal IR Episodic Memory
Birla Institute of Technology and Science, Pilani
Déjà Cue: Localizing States in Object Histories via Vocabulary-Relative Coordinates
Aug 3, 2026Haofan Cao, Zhichao You, Yunkai Yang +3Temporal Video Grounding Temporal IR
Southwest Jiaotong University, Chengdu, China · University of Leeds, Leeds, UK
A Graph-Native Bitemporal Memory Store for Conversational AI Agents
Jul 29, 2026Alp Niksarli, Gopesh BahetiConversational Memory LLM Agent Memory
Davidson College
Fenced Citation-Context Retrieval for Case Law: Temporal Leakage and Degree Control Across Two Jurisdictions
Jul 19, 2026Yao Liu, Tien-Ping Tan, Zhilan LiuData Leakage Legal IR
The Engineering and Technology College, Chengdu University of Technology, Leshan, China · School of Computer Sciences, Universiti Sains Malaysia, Penang, Malaysia · Department of Art and Design, The Engineering and Technology College, Chengdu University of Technology, Leshan, China
Risk-Constrained Freshness-Aware Semantic Caching for Open-Web Retrieval-Augmented LLMs
Jul 5, 2026Muhammad Mansoor, Tahir Ahmad, Yeo-Chan YoonLLM Inference Efficiency Retrieval-Augmented Generation
Jeju National University, Jeju, Republic of Korea
Submitted and Diagnostic Analysis of Full-Text Temporal Retrieval for LongEval-Sci
Jul 5, 2026Yingdong Yang, Haijian WuTemporal IR Information Retrieval
Jena, Germany
VideoSearch-R1: Iterative Video Retrieval and Reasoning via Soft Query Refinement
Jul 1, 2026Seohyun Lee, Seoung Choi, Dohwan Ko +2Temporal Video Grounding Temporal IR
KAIST, Daejeon, Republic of Korea · Korea University, Seoul, Republic of Korea
TRACE: State-Aware Query Processing over Temporal Evidence Graphs for Conversational Data
Jul 1, 2026Maolin Wang, Yu Wang, Zichun Liu +5Multi-Hop QA Graph Retrieval-Augmented Generation
Hong Kong Institute of AI for Science, City University of Hong Kong, Hong Kong SAR, China · Independent Researcher, Beijing, China · Central South University, Changsha, China +1
ConvMemory v3: A Validity Context Layer for Conversational Memory via Target-Conditioned Relation Verification
Jun 25, 2026Taiheng PanConversational Memory Persistent Memory for Language Models
School of Computing and Information Systems University of Melbourne
Temporal Validity in Retrieval Memory: Eliminating Stale-Fact Errors for AI Agents over Evolving Knowledge
Jun 25, 2026Neeraj YadavRetrieval-Augmented Generation Temporal IR
MemStrata.dev — Called It Inc. (Enterprise)
Topic-to-Timestamp Alignment by Constrained Evidence Selection
Jun 18, 2026Zeynep Yılbırt, Marina Litvak, Michael FärberRetrieval-Augmented Generation Temporal IR
TU Dresden, Germany · SpeechMind GmbH, Germany · Shamoon College of Engineering, Israel +1
HistoRAG: Embedding Historical Methodology in Retrieval-Augmented Generation Through Critical Technical Practice
Jun 16, 2026Noah J. Kim-Baumann, Torsten HiltmannRetrieval-Augmented Generation Temporal IR
Humboldt-Universität zu Berlin
Temporal Preference Optimization for Unsupervised Retrieval
Jun 16, 2026HyunJin Kim, Jaejun Shim, Young Jin Kim +1Temporal IR Preference Optimization
1Sungkyunkwan University, Suwon, South Korea · 2Microsoft, Redmond, USA
DYNA : Dynamic Episodic Memory Networks for Augmenting Large Language Models with Temporal Knowledge Graphs in Continuous Learning
Jun 14, 2026Ali Sarabadani, Mahtab TajvidiyanContinual Learning for LLMs Memory-Augmented Language Models
Department of Computer Engineering and Information Technology, University of Qom, Qom, Iran
Natural-Language Temporal Grounding in Hour-Long Videos is a Search Problem: A Benchmark and Empirical Decomposition
Jun 10, 2026Sukmin Seo, Geewook KimTemporal Video Grounding Temporal IR
NAVER Cloud AI · NAVER Cloud AI KAIST AI
REAL: A Reasoning-Enhanced Graph Framework for Long-Term Memory Management of LLMs
Jun 9, 2026Keer Lu, Liwei Chen, Guoqing Jiang +3Conversational Memory Persistent Memory for Language Models
School of Computer Science, Peking University · Kuaishou Technology · Center for Data Science, Academy for Advanced Interdisciplinary Studies, Peking University
Beyond Probabilistic Similarity: Structural, Temporal, and Causal Limitations of Retrieval-Augmented Generation in the Legal Domain
Jun 8, 2026Hudson de MartimRetrieval-Augmented Generation Legal IR
Federal Senate of Brazil, Brasília, Brazil
IA-RAG: Interval-Algebra-Driven Temporal Reasoning for Dynamic Knowledge Retrieval
Jun 4, 2026Xiaoman Wang, Yaoze Zhang, Wenzhuo Fan +7Retrieval-Augmented Generation Temporal IR
East China Normal University · Shanghai Artificial Intelligence Laboratory · University of Shanghai for Science and Technology +1
Temporal Order Matters for Agentic Memory: Segment Trees for Long-Horizon Agents
Jun 3, 2026Yifan Simon Liu, Liam Gallagher, Faeze Moradi Kalarde +3Temporal IR Hierarchical Memory
University of Toronto · 2Vector Institute for Artificial Intelligence
DynaTree: Dynamic Agentic Retrieval Tree for Time-Sensitive News Retrieval
May 29, 2026Siyuan Qi, Xinyuan Wang, Yingxuan Yang +5Temporal IR Adaptive Retrieval
Shanghai Jiao Tong University · Shanghai, China · Orion Arm AI +1
Point-in-Time Financial RAG with Frozen LLMs and Market-Feedback Adaptive Retrieval
May 29, 2026Zijie Zhao, Roy E. WelschRetrieval-Augmented Generation Quantitative Finance
Massachusetts Institute of Technology · Cambridge, MA, USA
BullingerDB: A Dataset for Handwritten Text Recognition and Writer Retrieval
May 28, 2026Marco Peer, Anna-Scius Bertrand, Patricia Scheurer +1Document Understanding Historical Document Analysis
AIBEX Group, University of Fribourg, Switzerland · iCoSys Institute, University of Applied Sciences and Arts Western Switzerland · Department of Computational Linguistics, University of Zurich, Switzerland

Sep 29, 2026, cs.AIJ/K move · Enter open · S save

Geometry-Conditioned Fixed-Scaffold Encoders for Time-Warp Robust Sequence Retrieval

Cassandra Yang, Yufan Tang

New York University · Fudan University

Temporal IR Invariant Representation Learning Time Series Representation Learning

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Embedding-based retrieval is attractive for long sequence collections because each item can be encoded once and searched by nearest-neighbor ranking. The difficulty is that the objects being indexed are often observed under a noncanonical clock: cardiac cycles stretch with rate, speech changes with tempo, and sensor traces reach comparable states at different speeds. This paper studies a specific source of instability in patch-based encoders for this regime. If patch boundaries are chosen from signal geometry, then the tokenization can change under the same temporal deformation that the representation is expected to tolerate. We propose GeoPatch, a fixed-scaffold patch encoder that keeps token support independent of geometry and uses slope, curvature, acceleration, affine-residual, and confidence descriptors only as continuous conditioning variables. The design turns boundary variation into feature modulation: geometry can change the embedding through a controlled pathway, but it cannot change the number, order, or support of local tokens. We formalize this distinction through a mechanism-level stability analysis that separates boundary drift, affine timing variation, confidence-weighted geometry perturbation, and retrieval-margin effects. The same local tokens support global embedding retrieval and late-interaction scoring, so the scoring rule can be matched to the evaluation protocol. Across ECG, speech, and multivariate time-series retrieval tasks, GeoPatch improves early-rank retrieval under timing variation while exposing a clear trade-off between local surface matching and strict non-overlap retrieval.

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