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Distributed Hash Tables (DHTs) are pivotal in numerous high-impact key-value applications built on distributed networked systems, offering a decentralized architecture that avoids single points of failure and improves data availability.…

Networking and Internet Architecture · Computer Science 2025-08-21 Shengze Wang , Yi Liu , Xiaoxue Zhang , Liting Hu , Chen Qian

To benefit the learning of a new task, meta-learning has been proposed to transfer a well-generalized meta-model learned from various meta-training tasks. Existing meta-learning algorithms randomly sample meta-training tasks with a uniform…

Machine Learning · Computer Science 2021-10-28 Huaxiu Yao , Yu Wang , Ying Wei , Peilin Zhao , Mehrdad Mahdavi , Defu Lian , Chelsea Finn

In meta-learning, the knowledge learned from previous tasks is transferred to new ones, but this transfer only works if tasks are related. Sharing information between unrelated tasks might hurt performance, and it is unclear how to transfer…

Monte Carlo Tree Search (MCTS) is a powerful algorithm for solving complex decision-making problems. This paper presents an optimized MCTS implementation applied to the FrozenLake environment, a classic reinforcement learning task…

Artificial Intelligence · Computer Science 2024-09-26 Esteban Aldana Guerra

We present Model Predictive Trees (MPT), a receding horizon tree search algorithm that improves its performance by reusing information efficiently. Whereas existing solvers reuse only the highest-quality trajectory from the previous…

Robotics · Computer Science 2024-11-26 John Lathrop , Benjamin Rivi`ere , Jedidiah Alindogan , Soon-Jo Chung

The ability of a robot to plan complex behaviors with real-time computation, rather than adhering to predesigned or offline-learned routines, alleviates the need for specialized algorithms or training for each problem instance. Monte Carlo…

Robotics · Computer Science 2024-12-17 Benjamin Riviere , John Lathrop , Soon-Jo Chung

Modern big data applications integrate data from various sources. As a result, these datasets may not satisfy perfect constraints, leading to sparse schema information and non-optimal query performance. The existing approach of PatchIndexes…

Databases · Computer Science 2021-02-15 Steffen Kläbe , Kai-Uwe Sattler , Stephan Baumann

Write-optimized dictionaries are a class of cache-efficient data structures that buffer updates and apply them in batches to optimize the amortized cache misses per update. For example, a B^epsilon tree inserts updates as messages at the…

Data Structures and Algorithms · Computer Science 2024-04-29 Christopher Chung , William Jannen , Samuel McCauley , Bertrand Simon

Smart databases are adopting artificial intelligence (AI) technologies to achieve {\em instance optimality}, and in the future, databases will come with prepackaged AI models within their core components. The reason is that every database…

Databases · Computer Science 2021-05-27 Debjyoti Paul , Jie Cao , Feifei Li , Vivek Srikumar

Existing RAG benchmarks often overlook query difficulty, leading to inflated performance on simpler questions and unreliable evaluations. A robust benchmark dataset must satisfy three key criteria: quality, diversity, and difficulty, which…

Information Retrieval · Computer Science 2025-06-02 Jeongsoo Lee , Daeyong Kwon , Kyohoon Jin , Junnyeong Jeong , Minwoo Sim , Minwoo Kim

Many applications require efficient management of large sets of intervals because many objects are associated with intervals (e.g., time and price intervals). In such interval management systems, range search is a primitive operator for…

Databases · Computer Science 2024-05-24 Daichi Amagata

Multi-task learning (MTL) aims at improving the generalization performance of several related tasks by leveraging useful information contained in them. However, in industrial scenarios, interpretability is always demanded, and the data of…

Machine Learning · Computer Science 2020-03-17 Ya-Lin Zhang , Longfei Li

Efficient and flexible information matching over wireless networks has become increasingly important and challenging with the popularity of smart devices and the growth of social-network-based applications. Some existing approaches designed…

Networking and Internet Architecture · Computer Science 2014-10-06 Ying Li , Xin Wang

Indexes are critical for efficient data retrieval and updates in modern databases. Recent advances in machine learning have led to the development of learned indexes, which model the cumulative distribution function of data to predict…

Databases · Computer Science 2026-04-27 Xinyi Zhang , Liang Liang , Anastasia Ailamaki , Jianliang Xu

Current language model training commonly applies multi-task Supervised Fine-Tuning (SFT) using a homogeneous compute budget across all sub-datasets. This approach is fundamentally sub-optimal: heterogeneous learning dynamics cause…

Machine Learning · Computer Science 2026-03-30 Woosung Koh , Jeyoung Jeon , Youngjin Song , Yujin Cheon , Soowon Oh , Jaehyeong Choi , Se-Young Yun

Treemaps have been used in information visualisation for over two decades. They make use of nested filled areas to represent information hierarchies such as file systems, library catalogues, etc. Recent years have witnessed the emergence of…

Human-Computer Interaction · Computer Science 2019-09-23 Patrick Cheong-Iao Pang , Robert P. Biuk-Aghai , Simon Fong , Yain-Whar Si

Updating and querying on a range is a classical algorithmic problem with a multitude of applications. The Segment Tree data structure is particularly notable in handling the range query and update operations. A Segment Tree divides the…

Data Structures and Algorithms · Computer Science 2020-12-08 Nabil Ibtehaz , M. Kaykobad , M. Sohel Rahman

In distributed applications, such as energy demand forecasting at the substation level or federated learning, a large number of related tasks must be learned by different models, while the exact task relationships are unknown. We propose…

Machine Learning · Computer Science 2026-05-25 Eloi Campagne , Yvenn Amara-Ouali , Yannig Goude , Mathilde Mougeot , Argyris Kalogeratos

We introduce OpSets, an executable framework for specifying and reasoning about the semantics of replicated datatypes that provide eventual consistency in a distributed system, and for mechanically verifying algorithms that implement these…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-05-15 Martin Kleppmann , Victor B. F. Gomes , Dominic P. Mulligan , Alastair R. Beresford

The growing popularity of shared-memory multiprocessor machines has caused significant changes in the design of concurrent software. In this approach, the concurrently running threads communicate and synchronize with each other through data…

Data Structures and Algorithms · Computer Science 2015-09-24 Konrad Kułakowski