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The Log-Structured Merge-Tree (LSM-tree) has been widely adopted for use in modern NoSQL systems for its superior write performance. Despite the popularity of LSM-trees, they have been criticized for suffering from write stalls and large…

数据库 · 计算机科学 2020-04-14 Chen Luo , Michael J. Carey

Transformers have been established as the de-facto backbones for most recent advances in sequence modeling, mainly due to their growing memory capacity that scales with the context length. While plausible for retrieval tasks, it causes…

机器学习 · 计算机科学 2026-03-02 Ali Behrouz , Zeman Li , Yuan Deng , Peilin Zhong , Meisam Razaviyayn , Vahab Mirrokni

Non-volatile Memory (NVM) could bridge the gap between memory and storage. However, NVMs are susceptible to data remanence attacks. Thus, multiple security metadata must persist along with the data to protect the confidentiality and…

硬件体系结构 · 计算机科学 2024-07-15 Rajat Jain , Aravinda Prasad , Sreenivas Subramoney , Arkaprava Basu

Containment-based trees encompass various handy structures such as B+-trees, R-trees and M-trees. They are widely used to build data indexes, range-queryable overlays, publish/subscribe systems both in centralized and distributed contexts.…

分布式、并行与集群计算 · 计算机科学 2012-12-17 Evangelos Bampas , Anissa Lamani , Franck Petit , Mathieu Valero

A $B$-tree is a type of search tree where every node (except possibly for the root) contains between $m$ and $2m$ keys for some positive integer $m$, and all leaves have the same distance to the root. We study sequences of $B$-trees that…

组合数学 · 数学 2024-06-11 Fabian Burghart , Stephan Wagner

In this paper, we extend the theory CCS for trees (CCTS) to value-passing CCTS (VCCTS), of which symbols have the capacity for receiving and sending data values, and a nonsequential semantics is proposed in an operational approach. In this…

计算机科学中的逻辑 · 计算机科学 2016-04-26 Shichao Liu , Ying Jiang

The advent of non-volatile memory (NVM) technologies like PCM, STT, memristors and Fe-RAM is believed to enhance the system performance by getting rid of the traditional memory hierarchy by reducing the gap between memory and storage. This…

分布式、并行与集群计算 · 计算机科学 2017-12-15 Ajay Singh , Marc Shapiro , Gael Thomas

We initiate the study of tree structures in the context of scenario-based robust optimization. Specifically, we study Binary Search Trees (BSTs) and Huffman coding, two fundamental techniques for efficiently managing and encoding data based…

数据结构与算法 · 计算机科学 2024-08-22 Spyros Angelopoulos , Christoph Dürr , Alex Elenter , Georgii Melidi

PQ-trees and PC-trees are data structures that represent sets of linear and circular orders, respectively, subject to constraints that specific subsets of elements have to be consecutive. While equivalent to each other, PC-trees are…

数据结构与算法 · 计算机科学 2021-06-29 Simon D. Fink , Matthias Pfretzschner , Ignaz Rutter

Knob tuning plays a critical role in improving the performance of permissioned blockchains. However, efficient tuning remains challenging due to the architectural complexity of blockchains and the semantic gap between knob-specific logic…

数据库 · 计算机科学 2026-05-25 Yaoyi Deng , Chongyang Tao , Mingxuan Li , Xuelian Lin , Han Sun , Mingchao Wan , Shuai Ma

Non-volatile memory (NVM) technologies such as spin-transfer torque magnetic random access memory (STT-MRAM) and spin-orbit torque magnetic random access memory (SOT-MRAM) have significant advantages compared to conventional SRAM due to…

硬件体系结构 · 计算机科学 2022-05-23 Ahmet Inci , Mehmet Meric Isgenc , Diana Marculescu

Superconductor electronics (SCE) is a promising complementary and beyond CMOS technology. However, despite its practical benefits, the realization of SCE logic faces a significant challenge due to the absence of dense and scalable…

In-memory ordered key-value stores are an important building block in modern distributed applications. We present Honeycomb, a hybrid software-hardware system for accelerating read-dominated workloads on ordered key-value stores that…

分布式、并行与集群计算 · 计算机科学 2023-04-07 Junyi Liu , Aleksandar Dragojevic , Shane Flemming , Antonios Katsarakis , Dario Korolija , Igor Zablotchi , Ho-cheung Ng , Anuj Kalia , Miguel Castro

Battery-less technology evolved to replace battery technology. Non-volatile memory (NVM) based processors were explored to store the program state during a power failure. The energy stored in a capacitor is used for a backup during a power…

硬件体系结构 · 计算机科学 2023-05-02 SatyaJaswanth Badri , Mukesh Saini , Neeraj Goel

LSM-tree based key-value (KV) stores organize data in a multi-level structure for high-speed writes. Range queries on traditional LSM-trees must seek and sort-merge data from multiple table files on the fly, which is expensive and often…

数据库 · 计算机科学 2021-01-27 Wenshao Zhong , Chen Chen , Xingbo Wu , Song Jiang

Brain extraction is one of the first steps of pre-processing 3D brain MRI data and a prerequisite for any forthcoming brain imaging analyses. However, it is not a simple segmentation problem due to the complex structure of the brain and…

图像与视频处理 · 电气工程与系统科学 2023-01-09 Jong Sung Park , Shreyas Fadnavis , Eleftherios Garyfallidis

As deep neural network (DNN) models are growing exponentially in size, their deployment on resource-constrained edge platforms is becoming increasingly challenging. In-memory-computing (IMC) with non-volatile memories (NVMs) has emerged as…

新兴技术 · 计算机科学 2026-04-07 Imtiaz Ahmed , Sumeet Kumar Gupta

Phase-change memory (PCM) is a scalable and low latency non-volatile memory (NVM) technology that has been proposed to serve as storage class memory (SCM), providing low access latency similar to DRAM and often approaching or exceeding the…

硬件体系结构 · 计算机科学 2020-12-01 Shihao Song , Anup Das

We develop hybrid memory architectures for general-purpose sequence processing neural networks, that combine key-value memory using softmax attention (KV-memory) with fast weight memory through dynamic synaptic modulation (FW-memory) -- the…

机器学习 · 计算机科学 2025-10-24 Kazuki Irie , Morris Yau , Samuel J. Gershman

Machine Learning (ML) techniques have been successfully applied to design various learned database index structures for both the one- and multi-dimensional spaces. Particularly, a class of traditional multi-dimensional indexes has been…

数据库 · 计算机科学 2025-02-17 Abdullah Al-Mamun , Ch. Md. Rakin Haider , Jianguo Wang , Walid G. Aref