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Our modern world relies on a growing number of interconnected and interacting devices, leading to a plethora of logs establishing audit trails for all kinds of events. Simultaneously, logs become increasingly important for forensic…

Cryptography and Security · Computer Science 2023-08-11 David Koisser , Ahmad-Reza Sadeghi

Log-structured merge (LSM) trees offer efficient ingestion by appending incoming data, and thus, are widely used as the storage layer of production NoSQL data stores. To enable competitive read performance, LSM-trees periodically…

Databases · Computer Science 2022-03-01 Subhadeep Sarkar , Dimitris Staratzis , Zichen Zhu , Manos Athanassoulis

Data management systems have traditionally been designed to support either long-running analytics queries or short-lived transactions, but an increasing number of applications need both. For example, online games, socio-mobile apps, and…

Databases · Computer Science 2012-05-31 Benjamin Sowell , Wojciech Golab , Mehul A. Shah

Reliable storage emulations from fault-prone components have established themselves as an algorithmic foundation of modern storage services and applications. Most existing reliable storage emulations are built from storage services…

Distributed, Parallel, and Cluster Computing · Computer Science 2015-08-18 Gregory Chockler , Dan Dobre , Alexander Shraer , Alexander Spiegelman

Compaction is a necessary, but often costly background process in write-optimized data structures like LSM-trees that reorganizes incoming data that is sequentially appended to logs. In this paper, we introduce Transformation-Embedded…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-06-11 Holly Casaletto , Jeff Lefevre , Aldrin Montana , Peter Alvaro

The current large blockchain systems (BTC Lightning network, Ethereum, etc.) are generally facing the problems of low persistence rates and high storage costs. Therefore, users tend to store single modal (textual) information on the…

Multimedia · Computer Science 2023-03-07 Zhijie Tan , Xiang Yuan , Shengwei Meng , Yakun Huang , Weiping Li , Zhonghai Wu , Tong Mo

Data structures used in software development have inbuilt redundancy to improve software reliability and to speed up performance. Examples include a Doubly Linked List which allows a faster deletion due to the presence of the previous…

Databases · Computer Science 2025-08-05 Pratyush Mahapatra , Mark D. Hill , Michael M. Swift

Blockchain uses the idea of storing transaction data in the form of a distributed ledger wherein each node in the network stores a current copy of the sequence of transactions in the form of a hash chain. This requirement of storing the…

Information Theory · Computer Science 2018-01-09 Ravi Kiran Raman , Lav R. Varshney

Log-Structured-Merge (LSM) tree-based key value stores are facing critical challenges of fully leveraging the dramatic performance improvements of the underlying storage devices, which makes the compaction operations of LSM key value stores…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-04-08 Peng Xu , Jiguang Wan , Ping Huang , Xiaogang Yang , Chenlei Tang , Fei Wu , Changsheng Xie

Long-horizon conversational agents have to manage ever-growing interaction histories that quickly exceed the finite context windows of large language models (LLMs). Existing memory frameworks provide limited support for temporally…

Computation and Language · Computer Science 2026-05-01 Kai Li , Xuanqing Yu , Ziyi Ni , Yi Zeng , Yao Xu , Zheqing Zhang , Xin Li , Jitao Sang , Xiaogang Duan , Xuelei Wang , Chengbao Liu , Jie Tan

Efficient vector search is essential for powering large-scale AI applications, such as LLMs. Existing solutions are designed for monolithic architectures where compute and memory are tightly coupled. Recently, disaggregated architecture…

Databases · Computer Science 2026-03-17 Fei Fang , Yi Liu , Chen Qian

Blockchain systems face significant scalability challenges due to growing data volumes and increasing transaction demands, necessitating more efficient data structures and verification mechanisms. Verkle trees, a novel data structure…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-12 Zhikai Li , Xuekai Liu , Boyuan Xu , Eric Chen , Bhaskar Krishnamachari

As data volumes continue to grow rapidly, traditional search algorithms, like the red-black tree and B+ Tree, face increasing challenges in performance, especially in big data scenarios with intensive storage access. This paper presents the…

Databases · Computer Science 2025-04-02 Songpeng Liu

Authenticated data storage on an untrusted platform is an important computing paradigm for cloud applications ranging from big-data outsourcing, to cryptocurrency and certificate transparency log. These modern applications increasingly…

Cryptography and Security · Computer Science 2019-11-11 Yuzhe Tang , Ju Chen , Kai Li , Jianliang Xu , Qi Zhang

We address the problem of compactly storing a large number of versions (snapshots) of a collection of keyed documents or records in a distributed environment, while efficiently answering a variety of retrieval queries over those, including…

Databases · Computer Science 2018-02-26 Souvik Bhattacherjee , Amol Deshpande

Large language models (LLMs) rely on Key-Value (KV) cache to reduce time-to-first-token (TTFT) latency, but existing disk-based KV cache systems using file-per-object layouts suffer from severe scalability bottlenecks due to file system…

Databases · Computer Science 2025-11-26 Weiping Yu , Ye Jiarui , He Mengke , Junfeng Liu , Siqiang Luo

As a result of RAM becoming cheaper, there has been a trend in key-value store design towards maintaining a fast in-memory index (such as a hash table) while logging user operations to disk, allowing high performance under failure-free…

Databases · Computer Science 2021-07-23 Maofan Yin , Hongbo Zhang , Robbert van Renesse , Emin Gün Sirer

As its price per bit drops, SSD is increasingly becoming the default storage medium for cloud application databases. However, it has not become the preferred storage medium for key-value caches, even though SSD offers more than 10x lower…

Operating Systems · Computer Science 2017-02-10 Assaf Eisenman , Asaf Cidon , Evgenya Pergament , Or Haimovich , Ryan Stutsman , Mohammad Alizadeh , Sachin Katti

In this paper, we give theoretically and practically efficient implementations of Big Atomics, i.e., $k$-word linearizable registers that support the load, store, and compare-and-swap (CAS) operations. While modern hardware supports $k = 1$…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-01-14 Daniel Anderson , Guy E. Blelloch , Siddhartha Jayanti

The exponential growth of artificial intelligence (AI) and machine learning (ML) applications has necessitated the development of efficient storage solutions for vector and tensor data. This paper presents a novel approach for tensor…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-05-14 Zhiwei Bao , Liu Liao-Liao , Zhiyu Wu , Yifan Zhou , Dan Fan , Michal Aibin , Yvonne Coady , Andrew Brownsword