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Recent years have witnessed much interest in temporal reasoning over knowledge graphs (KG) for complex question answering (QA), but there remains a substantial gap in human capabilities. We explore how to generalize relational graph…

Computation and Language · Computer Science 2023-10-09 Aditya Sharma , Apoorv Saxena , Chitrank Gupta , Seyed Mehran Kazemi , Partha Talukdar , Soumen Chakrabarti

Temporal knowledge graphs (TKGs) inherently reflect the transient nature of real-world knowledge, as opposed to static knowledge graphs. Naturally, automatic TKG completion has drawn much research interests for a more realistic modeling of…

Machine Learning · Computer Science 2020-12-22 Jaehun Jung , Jinhong Jung , U Kang

Question answering over knowledge bases (KB-QA) poses challenges in handling complex questions that need to be decomposed into sub-questions. An important case, addressed here, is that of temporal questions, where cues for temporal…

Information Retrieval · Computer Science 2021-01-26 Zhen Jia , Abdalghani Abujabal , Rishiraj Saha Roy , Jannik Stroetgen , Gerhard Weikum

Temporal graphs are widespread in real-world applications such as social networks, as well as trade and transportation networks. Predicting dynamic links within these evolving graphs is a key problem. Many memory-based methods use temporal…

Machine Learning · Computer Science 2025-12-16 Xiaohui Zhang , Yanbo Wang , Xiyuan Wang , Muhan Zhang

In this paper, we propose REASON, a novel framework that enables the automatic discovery of both intra-level (i.e., within-network) and inter-level (i.e., across-network) causal relationships for root cause localization. REASON consists of…

Machine Learning · Computer Science 2023-02-07 Dongjie Wang , Zhengzhang Chen , Jingchao Ni , Liang Tong , Zheng Wang , Yanjie Fu , Haifeng Chen

Temporal link prediction in dynamic graphs is a critical task with applications in diverse domains such as social networks, recommendation systems, and e-commerce platforms. While existing Temporal Graph Neural Networks (T-GNNs) have…

Artificial Intelligence · Computer Science 2025-07-21 Haoyang Li , Yuming Xu , Yiming Li , Hanmo Liu , Darian Li , Chen Jason Zhang , Lei Chen , Qing Li

Quantum error-correcting code (QECC) is the central ingredient in fault-tolerant quantum information processing. An emerging paradigm of dynamical QECC shows that one can robustly encode logical quantum information both temporally and…

Quantum Physics · Physics 2024-05-29 Andrew Tanggara , Mile Gu , Kishor Bharti

Question answering over temporal knowledge graphs (KGs) efficiently uses facts contained in a temporal KG, which records entity relations and when they occur in time, to answer natural language questions (e.g., "Who was the president of the…

Computation and Language · Computer Science 2022-03-02 Chao Shang , Guangtao Wang , Peng Qi , Jing Huang

Temporal action proposal generation aims to estimate temporal intervals of actions in untrimmed videos, which is a challenging yet important task in the video understanding field. The proposals generated by current methods still suffer from…

Computer Vision and Pattern Recognition · Computer Science 2021-03-25 Zhiwu Qing , Haisheng Su , Weihao Gan , Dongliang Wang , Wei Wu , Xiang Wang , Yu Qiao , Junjie Yan , Changxin Gao , Nong Sang

Unsupervised learning of time series data, also known as temporal clustering, is a challenging problem in machine learning. Here we propose a novel algorithm, Deep Temporal Clustering (DTC), to naturally integrate dimensionality reduction…

Machine Learning · Computer Science 2018-02-06 Naveen Sai Madiraju , Seid M. Sadat , Dimitry Fisher , Homa Karimabadi

The Security-Constrained Unit Commitment (SCUC) problem presents formidable computational challenges due to its combinatorial complexity, large-scale network dimensions, and numerous security constraints. While conventional temporal…

Optimization and Control · Mathematics 2025-07-29 Jinxin Xiong , Linxin Yang , Yingxiao Wang , Yanting Huang , Jianghua Wu , Shunbo Lei , Akang Wang

Dynamically adaptive multi-core architectures have been proposed as an effective solution to optimize performance for peak power constrained processors. In processors, the micro-architectural parameters or voltage/frequency of each core to…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-09-22 Yatish Turakhia , Guangshuo Liu , Siddharth Garg , Diana Marculescu

Temporal Knowledge Graph Question Answering (TKGQA) is challenging because it requires multi-hop reasoning under complex temporal constraints. Recent LLM-based approaches have improved semantic modeling for this task, but many still rely on…

Computation and Language · Computer Science 2026-03-26 Xufei Lv , Jiahui Yang , Haoyuan Sun , Xialin Su , Zhiliang Tian , Yifu Gao , Linbo Qiao , Houde Liu

The Diffusion models, widely used for image generation, face significant challenges related to their broad applicability due to prolonged inference times and high memory demands. Efficient Post-Training Quantization (PTQ) is crucial to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Yushi Huang , Ruihao Gong , Xianglong Liu , Jing Liu , Yuhang Li , Jiwen Lu , Dacheng Tao

Distributed quantum computing (DQC) is a promising technique for scaling up quantum systems. While significant progress has been made in DQC for quantum circuit models, there exists much less research on DQC for measurement-based quantum…

Quantum Physics · Physics 2026-01-05 Yecheng Xue , Rui Yang , Zhiding Liang , Tongyang Li

Significant efforts have been expended in the research and development of a database management system (DBMS) that has a wide range of applications for managing an enormous collection of multisource, heterogeneous, complex, or growing data.…

Databases · Computer Science 2021-04-01 Chunkai Zhang , Zilin Du , Quanjian Dai , Wensheng Gan , Jian Weng , Philip S. Yu

Multivariate time series forecasting enables the prediction of future states by leveraging historical data, thereby facilitating decision-making processes. Each data node in a multivariate time series encompasses a sequence of multiple…

Machine Learning · Computer Science 2025-05-02 Xinlong Zhao , Liying Zhang , Tianbo Zou , Yan Zhang

Current approaches for time series forecasting, whether in the time or frequency domain, predominantly use deep learning models based on linear layers or transformers. They often encode time series data in a black-box manner and rely on…

Machine Learning · Computer Science 2025-10-14 Cheng He , Xijie Liang , Zengrong Zheng , Patrick P. C. Lee , Xu Huang , Zhaoyi Li , Hong Xie , Defu Lian , Enhong Chen

The problem of frequent pattern mining from non-temporal databases is studied extensively by various researchers working in areas of data mining, temporal databases and information retrieval. However, Conventional frequent pattern…

Databases · Computer Science 2016-04-19 Vangipuram Radhakrishna , P. V. Kumar , V. Janaki

Pairwise temporal interactions between entities can be represented as temporal networks, which code the propagation of processes such as epidemic spreading or information cascades, evolving on top of them. The largest outcome of these…

Social and Information Networks · Computer Science 2023-07-12 Rémi Vaudaine , Pierre Borgnat , Paulo Goncalves , Rémi Gribonval , Márton Karsai