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Modern stateful web services and distributed SDN controllers rely on log replication to omit data loss in case of fail-stop failures. In single-leader execution, the leader replica is responsible for ordering log updates and the initiation…

Networking and Internet Architecture · Computer Science 2021-04-06 Ermin Sakic , Petra Vizarreta , Wolfgang Kellerer

This paper presents V-Guard, a new permissioned blockchain that achieves consensus for vehicular data under changing memberships, targeting the problem in V2X networks where vehicles are often intermittently connected on the roads. To…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-04-05 Gengrui Zhang , Yunhao Mao , Shiquan Zhang , Shashank Motepalli , Fei Pan , Hans-Arno Jacobsen

Applying Large Language Models (LLMs) to heterogeneous enterprise systems is hindered by hallucinations and failures in multi-hop, n-ary reasoning. Existing paradigms (e.g., GraphRAG, NL2SQL) lack the semantic grounding and auditable…

Artificial Intelligence · Computer Science 2026-05-21 Ling Wang , Xin Liu , Songnan Liu , Jianan Wang , Cheng Cheng , Yihan Zhu , Enyu Li , Yu Xiao , Jiangyong Xie , Duogong Yan , Jiangyi Chen

Efficiently harnessing GPU compute is critical to improving user experience and reducing operational costs in large language model (LLM) services. However, current inference engine schedulers overlook the attention backend's sensitivity to…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-18 Yitao Yuan , Chenqi Zhao , Bohan Zhao , Zane Cao , Yongchao He , Wenfei Wu

In blockchain systems, especially cryptographic currencies such as Bitcoin, the double-spending and Byzantine-general-like problem are solved by reaching consensus protocols among all nodes. The state-of-the-art protocols include…

Cryptography and Security · Computer Science 2018-08-02 Jianwen Chen , Kai Duan , Rumin Zhang , Liaoyuan Zeng , Wenyi Wang

With the growing adoption of Distributed Ledger Technologies and the subsequent scaling of these networks, there is an inherent need for efficient and resilient communication used by the underlying consensus and replication mechanisms.…

Networking and Internet Architecture · Computer Science 2023-01-25 Lucian Trestioreanu , Wazen M. Shbair , Flaviene Scheidt de Cristo , Radu State

The theory community has proposed several new heap variants in the recent past which have remained largely untested experimentally. We take the field back to the drawing board, with straightforward implementations of both classic and novel…

Data Structures and Algorithms · Computer Science 2014-03-04 Daniel H. Larkin , Siddhartha Sen , Robert E. Tarjan

Reliability in cloud AI infrastructure is crucial for cloud service providers, prompting the widespread use of hardware redundancies. However, these redundancies can inadvertently lead to hidden degradation, so called "gray failure", for AI…

A blockchain is a distributed ledger for recording transactions, maintained by many nodes without central authority through a distributed cryptographic protocol. All nodes validate the information to be appended to the blockchain, and a…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-07-10 Christian Cachin , Marko Vukolić

The increasing parallelism of many-core systems demands for efficient strategies for the run-time system management. Due to the large number of cores the management overhead has a rising impact to the overall system performance. This work…

Distributed, Parallel, and Cluster Computing · Computer Science 2015-02-11 Daniel Gregorek , Robert Schmidt , Alberto Garcia-Ortiz

Hybrid parallelism underpins large-scale LLM training across tens of thousands of GPUs. At such scale, hardware failures on individual devices lead to performance skew across devices, diminishing overall training efficiency. Existing…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-12 Tenghui Ma , Jihu Guo , Wei Gao , Sitian Lu , Zhisheng Ye , Hanjing Wang , Dahua Lin

Bitcoin is a decentralised digital currency that serves as an alternative to existing transaction systems based on an external central authority for security. Although Bitcoin has many desirable properties, one of its fundamental…

Cryptography and Security · Computer Science 2019-10-07 Georgios Birmpas , Elias Koutsoupias , Philip Lazos , Francisco J. Marmolejo-Cossío

The rapid advancement of large language models (LLMs) demands increasingly reliable evaluation, yet current centralized evaluation suffers from opacity, overfitting, and hardware-induced variance. Our empirical analysis reveals an alarming…

Artificial Intelligence · Computer Science 2026-02-10 Yifan Yang , Jinjia Li , Kunxi Li , Puhao Zheng , Yuanyi Wang , Zheyan Qu , Yang Yu , Jianmin Wu , Ming Li , Hongxia Yang

With the development of decentralized consensus protocols, permissionless blockchains have been envisioned as a promising enabler for the general-purpose transaction-driven, autonomous systems. However, most of the prevalent blockchain…

Computer Science and Game Theory · Computer Science 2018-11-19 Zhengwei Ni , Wenbo Wang , Dong In Kim , Ping Wang , Dusit Niyato

Autonomous AI agents on embedded platforms require real-time, risk-aware scheduling under resource and thermal constraints. Classical heuristics struggle with workload irregularity, tabular regressors discard structural information, and…

Machine Learning · Computer Science 2026-01-22 Mohammad Pivezhandi , Mahdi Banisharif , Saeed Bakhshan , Abusayeed Saifullah , Ali Jannesari

This paper presents $\mathit{wChain}$, a blockchain protocol specifically designed for multihop wireless networks that deeply integrates wireless communication properties and blockchain technologies under the realistic SINR model. We adopt…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-02-03 Minghui Xu , Chunchi Liu , Yifei Zou , Feng Zhao , Jiguo Yu , Xiuzhen Cheng

This paper investigates how pricing schemes can achieve efficient allocations in blockchain systems featuring multiple transaction queues under a global capacity constraint. I model a capacity-constrained blockchain where users submit…

General Economics · Economics 2025-02-26 Abdoulaye Ndiaye

Large-scale labeled dataset is the indispensable fuel that ignites the AI revolution as we see today. Most such datasets are constructed using crowdsourcing services such as Amazon Mechanical Turk which provides noisy labels from…

Human-Computer Interaction · Computer Science 2022-03-15 Chong Liu , Yu-Xiang Wang

Many prominent smart-contract applications such as payment channels, auctions, and voting systems often involve a mechanism in which some party must respond to a challenge or appeal some action within a fixed time limit. This pattern of…

Cryptography and Security · Computer Science 2022-09-27 Ayelet Lotem , Sarah Azouvi , Patrick McCorry , Aviv Zohar

A blockchain is a database of sequential events that is maintained by a distributed group of nodes. A key consensus problem in blockchains is that of determining the next block (data element) in the sequence. Many blockchains address this…

Cryptography and Security · Computer Science 2019-09-20 Giulia Fanti , Jiantao Jiao , Ashok Makkuva , Sewoong Oh , Ranvir Rana , Pramod Viswanath