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With the current trend of multiprocessor machines towards more and more hierarchical architectures, exploiting the full computational power requires careful distribution of execution threads and data so as to limit expensive remote memory…

分布式、并行与集群计算 · 计算机科学 2007-05-23 Samuel Thibault

Daily activity recognition has gained prominence due to its applications in context-aware computing. Current methods primarily rely on supervised learning for detecting simple, repetitive activities. This paper introduces LayeredSense, a…

人机交互 · 计算机科学 2025-02-14 Chak Man Lam

Hospitals around the world collect massive amounts of physiological data from their patients every day. Recently, there has been an increase in research interest to subject this data to statistical analysis to gain more insights and provide…

分布式、并行与集群计算 · 计算机科学 2021-03-04 Anand Jayarajan , Kimberly Hau , Andrew Goodwin , Gennady Pekhimenko

Sequence models in reinforcement learning require task knowledge to estimate the task policy. This paper presents a hierarchical algorithm for learning a sequence model from demonstrations. The high-level mechanism guides the low-level…

机器学习 · 计算机科学 2022-09-22 André Correia , Luís A. Alexandre

We aim to model unknown file processing. As the content of log files often evolves over time, we established a dynamic statistical model which learns and adapts processing and parsing rules. First, we limit the amount of unstructured text…

机器学习 · 计算机科学 2020-01-07 Nadine Kuhnert , Andreas Maier

Multi-level Hierarchical Classification (MLHC) tackles the challenge of categorizing items within a complex, multi-layered class structure. However, traditional MLHC classifiers often rely on a backbone model with independent output layers,…

Many prediction tasks of real-world applications need to model multi-order feature interactions in user's event sequence for better detection performance. However, existing popular solutions usually suffer two key issues: 1) only focusing…

机器学习 · 计算机科学 2022-01-03 Dongbo Xi , Fuzhen Zhuang , Bowen Song , Yongchun Zhu , Shuai Chen , Dan Hong , Tao Chen , Xi Gu , Qing He

This thesis focuses on process mining on event data where such a normative specification is absent and, as a result, the event data is less structured. The thesis puts special emphasis on one application domain that fits this description:…

人工智能 · 计算机科学 2019-09-05 Niek Tax

One of the most valuable assets of an organization is its organizational data. The analysis and mining of this potential hidden treasure can lead to much added-value for the organization. Process mining is an emerging area that can be…

软件工程 · 计算机科学 2016-07-05 Asef Pourmasoumi , Ebrahim Bagheri

Hashing has been widely adopted for large-scale data retrieval in many domains, due to its low storage cost and high retrieval speed. Existing cross-modal hashing methods optimistically assume that the correspondence between training…

机器学习 · 计算机科学 2019-05-30 Xuanwu Liu , Jun Wang , Guoxian Yu , Carlotta Domeniconi , Xiangliang Zhang

This demo showcases a platform for developing human activity recognition (AR) systems, focusing on daily activities using sensor data, like binary sensors. With a data-driven approach, this platform, named FlowAR, features a three-step…

机器学习 · 计算机科学 2025-02-14 Ali Ncibi , Luc Bouganim , Philippe Pucheral

Process mining aims to extract and analyze insights from event logs, yet algorithm metric results vary widely depending on structural event log characteristics. Existing work often evaluates algorithms on a fixed set of real-world event…

Pretraining has proven to be a powerful technique in natural language processing (NLP), exhibiting remarkable success in various NLP downstream tasks. However, in the medical domain, existing pretrained models on electronic health records…

人工智能 · 计算机科学 2023-10-23 Xiaochen Wang , Junyu Luo , Jiaqi Wang , Ziyi Yin , Suhan Cui , Yuan Zhong , Yaqing Wang , Fenglong Ma

Fully Homomorphic Encryption (FHE) imposes substantial memory bandwidth demands, presenting significant challenges for efficient hardware acceleration. Near-memory Processing (NMP) has emerged as a promising architectural solution to…

硬件体系结构 · 计算机科学 2025-04-01 Shangyi Shi , Husheng Han , Jianan Mu , Xinyao Zheng , Ling Liang , Hang Lu , Zidong Du , Xiaowei Li , Xing Hu , Qi Guo

In this paper, we report a hierarchical deep learning model for classification of complex human activities using motion sensors. In contrast to traditional Human Activity Recognition (HAR) models used for event-based activity recognition,…

机器学习 · 计算机科学 2022-07-19 Eric Rosen , Doruk Senkal

MadMiner is a Python package that implements a powerful family of multivariate inference techniques that leverage matrix element information and machine learning. This multivariate approach neither requires the reduction of high-dimensional…

高能物理 - 实验 · 物理学 2023-04-13 Irina Espejo , Sinclert Pérez , Kenyi Hurtado , Lukas Heinrich , Kyle Cranmer

Process mining provides techniques to improve the performance and compliance of operational processes. Although sometimes the term "workflow mining" is used, the application in the context of Workflow Management (WFM) and Business Process…

软件工程 · 计算机科学 2020-09-15 Alessandro Berti , Wil van der Aalst , David Zang , Magdalena Lang

Autonomous Market Makers (AMMs) rely on arbitrage to facilitate passive price updates. Liquidity fragmentation poses a complex challenge across different blockchain networks. This paper proposes FluxLayer, a solution to mitigate fragmented…

计算金融 · 定量金融 2025-05-15 Xin Lao , Shiping Chen , Qin Wang

We consider enhancing large language models (LLMs) for complex planning tasks. While existing methods allow LLMs to explore intermediate steps to make plans, they either depend on unreliable self-verification or external verifiers to…

Computer-based scientific experiments are becoming increasingly data-intensive, necessitating the use of High-Performance Computing (HPC) clusters to handle large scientific workflows. These workflows result in complex data and control…

数据库 · 计算机科学 2025-02-17 Zahra Sadeghibogar , Alessandro Berti , Marco Pegoraro , Wil M. P. van der Aalst