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  • Review
  • Open Access
37 Citations
4,810 Views
33 Pages

1 October 2020

Mesoporous silicas have enjoyed great interest among scientists practically from the moment of their discovery thanks to their unique attractive properties. Many types of mesoporous silicas have been described in literature, the most thoroughly MCM-4...

  • Article
  • Open Access
2 Citations
2,307 Views
17 Pages

23 May 2022

The cutterhead torque and thrust, reflecting the obstruction degree of the geological environment and the behavior of excavation, are the key operating parameters for the tunneling of tunnel boring machines (TBMs). In this paper, a hybrid hidden Mark...

  • Article
  • Open Access
16 Citations
8,526 Views
13 Pages

HMM Adaptation for Improving a Human Activity Recognition System

  • Rubén San-Segundo,
  • Juan M. Montero,
  • José Moreno-Pimentel and
  • José M. Pardo

2 September 2016

When developing a fully automatic system for evaluating motor activities performed by a person, it is necessary to segment and recognize the different activities in order to focus the analysis. This process must be carried out by a Human Activity Rec...

  • Article
  • Open Access
2 Citations
2,160 Views
15 Pages

Discrete HMM for Visualizing Domiciliary Human Activity Perception and Comprehension

  • Ta-Wen Kuan,
  • Shih-Pang Tseng,
  • Che-Wen Chen,
  • Jhing-Fa Wang and
  • Chieh-An Sun

17 March 2022

Advances in artificial intelligence-based autonomous applications have led to the advent of domestic robots for smart elderly care; the preliminary critical step for such robots involves increasing the comprehension of robotic visualizing of human ac...

  • Article
  • Open Access
2 Citations
3,438 Views
14 Pages

As one of the most important and computationally-intensive parts in bioinformatics analysis, the Pair Hidden Markov Model (Pair-HMM) forward algorithm is widely recognized and has great potential. Therefore, it is important to accelerate the process...

  • Article
  • Open Access
11 Citations
6,301 Views
23 Pages

Time Series Anomaly Detection for KPIs Based on Correlation Analysis and HMM

  • Zijing Shang,
  • Yingjun Zhang,
  • Xiuguo Zhang,
  • Yun Zhao,
  • Zhiying Cao and
  • Xuejie Wang

30 November 2021

KPIs (Key Performance Indicators) in distributed systems may involve a variety of anomalies, which will lead to system failure and huge losses. Detecting KPI anomalies in the system is very important. This paper presents a time series anomaly detecti...

  • Article
  • Open Access
20 Citations
3,552 Views
26 Pages

5 September 2022

The development of convolution neural networks (CNNs) has become a significant means to solve the problem of remote sensing scene image classification. However, well-performing CNNs generally have high complexity and are prone to overfitting. To hand...

  • Article
  • Open Access
10 Citations
10,326 Views
25 Pages

28 November 2018

In the field of network intrusion, malware usually evades anomaly detection by disguising malicious behavior as legitimate access. Therefore, detecting these attacks from network traffic has become a challenge in this an adversarial setting. In this...

  • Article
  • Open Access
18 Citations
3,644 Views
11 Pages

Composite Structure Based on Gold-Nanoparticle Layer and HMM for Surface-Enhanced Raman Spectroscopy Analysis

  • Zirui Wang,
  • Yanyan Huo,
  • Tingyin Ning,
  • Runcheng Liu,
  • Zhipeng Zha,
  • Muhammad Shafi,
  • Can Li,
  • Shuanglu Li,
  • Kunyu Xing and
  • Shouzhen Jiang
  • + 3 authors

26 February 2021

Hyperbolic metamaterials (HMMs), supporting surface plasmon polaritons (SPPs), and highly confined bulk plasmon polaritons (BPPs) possess promising potential for application as surface-enhanced Raman scattering (SERS) substrates. In the present study...

  • Article
  • Open Access
4 Citations
2,150 Views
24 Pages

Bearing Performance Degradation Assessment Based on SC-RMI and Student’s t-HMM

  • Huiming Jiang,
  • Jinhai Luo,
  • Bohua Zhou,
  • Chao Li,
  • Zhongwei Lv,
  • Zhibo Yang and
  • Jin Chen

14 October 2021

Bearing performance degradation assessment (PDA), as an important part of prognostics and health management (PHM), is significant to prevent major accidents and economic losses in industry. For the data-driven PDA, the extraction and selection of fea...

  • Article
  • Open Access
5 Citations
3,059 Views
9 Pages

Assessment of 3D Visual Discomfort Based on Dynamic Functional Connectivity Analysis with HMM in EEG

  • Zhiying Long,
  • Lu Liu,
  • Xuefeng Yuan,
  • Yawen Zheng,
  • Yantong Niu and
  • Li Yao

Stereoscopic displays can induce visual discomfort despite their wide application. Electroencephalography (EEG) technology has been applied to assess 3D visual discomfort, because it can capture brain activities with high temporal resolution. Previou...

  • Article
  • Open Access
30 Citations
5,507 Views
16 Pages

23 August 2018

A data center network is vulnerable to suffer from concealed low-rate distributed denial of service (L-DDoS) attacks because its data flow has the characteristics of data flow delay, diversity, and synchronization. Several studies have proposed addre...

  • Article
  • Open Access
156 Citations
8,568 Views
10 Pages

19 April 2017

Based on the combination of improved Local Mean Decomposition (LMD), Multi-scale Permutation Entropy (MPE) and Hidden Markov Model (HMM), the fault types of bearings are diagnosed. Improved LMD is proposed based on the self-similarity of roller beari...

  • Article
  • Open Access
3 Citations
1,865 Views
20 Pages

10 October 2023

Spatiotemporal data from urban road traffic are pivotal for intelligent transportation systems and urban planning. Nonetheless, missing data in traffic datasets is a common challenge due to equipment failures, communication issues, and monitoring lim...

  • Article
  • Open Access
5 Citations
1,847 Views
19 Pages

14 November 2024

This study proposes an enhanced ship-type classification model that employs a sequential processing methodology integrating hidden Markov model (HMM), deep neural network (DNN), and convolutional neural network (CNN) techniques. Four different ship t...

  • Communication
  • Open Access
3 Citations
2,881 Views
11 Pages

21 March 2023

Practitioners have used hidden Markov models (HMMs) in different problems for about sixty years. Moreover, conditional random fields (CRFs) are an alternative to HMMs and appear in the literature as different and somewhat concurrent models. We propos...

  • Article
  • Open Access
9 Citations
6,207 Views
17 Pages

8 August 2017

Spider venoms are rich cocktails of bioactive peptides, proteins, and enzymes that are being intensively investigated over the years. In order to provide a better comprehension of that richness, we propose a three-level family classification system f...

  • Article
  • Open Access
13 Citations
3,735 Views
31 Pages

21 October 2021

This paper presents an enhanced PDR-BLE compensation mechanism for improving indoor localization, which is considerably resilient against variant uncertainties. The proposed method of ePDR-BLE compensation mechanism (EPBCM) takes advantage of the non...

  • Article
  • Open Access
10 Citations
2,259 Views
26 Pages

The remote control ship is considered to be the most likely implementation of maritime autonomous surface ships (MASS) in the near-term future. With collaborative control from onboard controllers and operators ashore, ships may operate in three navig...

  • Article
  • Open Access
2 Citations
1,189 Views
21 Pages

GMM-HMM-Based Eye Movement Classification for Efficient and Intuitive Dynamic Human–Computer Interaction Systems

  • Jiacheng Xie,
  • Rongfeng Chen,
  • Ziming Liu,
  • Jiahao Zhou,
  • Juan Hou and
  • Zengxiang Zhou

Human–computer interaction (HCI) plays a crucial role across various fields, with eye-tracking technology emerging as a key enabler for intuitive and dynamic control in assistive systems like Assistive Robotic Arms (ARAs). By precisely tracking...

  • Article
  • Open Access
2,003 Views
20 Pages

Ensemble of HMMs for Sequence Prediction on Multivariate Biomedical Data

  • Richard Fechner,
  • Jens Dörpinghaus,
  • Robert Rockenfeller and
  • Jennifer Faber

Background: Biomedical data are usually collections of longitudinal data assessed at certain points in time. Clinical observations assess the presences and severity of symptoms, which are the basis for the description and modeling of disease progress...

  • Article
  • Open Access
1 Citations
1,884 Views
14 Pages

16 May 2024

Single-crystal diamond tools occupy an important position in the field of optical processing as the basis and key to advanced optical manufacturing technology, such as grating manufacturing and optical mirror-turning processing. Single-crystal diamon...

  • Article
  • Open Access
3 Citations
3,530 Views
27 Pages

13 February 2023

Profile hidden Markov models (HMMs) are a powerful way of modeling biological sequence diversity and constitute a very sensitive approach to detecting divergent sequences. Here, we report the development of protocols for the rational design of profil...

  • Article
  • Open Access
24 Citations
7,733 Views
19 Pages

A Hybrid LSSVR/HMM-Based Prognostic Approach

  • Zhijuan Liu,
  • Qing Li,
  • Xianhui Liu and
  • Chundi Mu

26 April 2013

In a health management system, prognostics, which is an engineering discipline that predicts a system’s future health, is an important aspect yet there is currently limited research in this field. In this paper, a hybrid approach for prognostics is p...

  • Article
  • Open Access
1 Citations
1,273 Views
27 Pages

An Identification Method for Road Hypnosis Based on XGBoost-HMM

  • Longfei Chen,
  • Chenyang Jiao,
  • Bin Wang,
  • Xiaoyuan Wang,
  • Jingheng Wang,
  • Han Zhang,
  • Junyan Han,
  • Cheng Shen,
  • Kai Feng and
  • Yi Liu
  • + 1 author

16 March 2025

Human factors are the most important factor in road traffic crashes. Human-caused traffic crashes can be reduced through the active safety system of vehicles. Road hypnosis is an unconscious driving state caused by the combination of external environ...

  • Article
  • Open Access
2 Citations
2,946 Views
24 Pages

Sequence–structure alignment for protein sequences is an important task for the template-based modeling of 3D structures of proteins. Building a reliable sequence–structure alignment is a challenging problem, especially for remote homolog...

  • Article
  • Open Access
3,341 Views
16 Pages

CVAM: CNA Profile Inference of the Spatial Transcriptome Based on the VGAE and HMM

  • Jian Ma,
  • Jingjing Guo,
  • Zhiwei Fan,
  • Weiling Zhao and
  • Xiaobo Zhou

28 April 2023

Tumors are often polyclonal due to copy number alteration (CNA) events. Through the CNA profile, we can understand the tumor heterogeneity and consistency. CNA information is usually obtained through DNA sequencing. However, many existing studies hav...

  • Article
  • Open Access
16 Citations
8,894 Views
17 Pages

11 August 2009

Statistical complexity is a measure of complexity of discrete-time stationary stochastic processes, which has many applications. We investigate its more abstract properties as a non-linear function of the space of processes and show its close relatio...

  • Article
  • Open Access
22 Citations
5,793 Views
13 Pages

26 January 2023

Human activity recognition (HAR) has become an interesting topic in healthcare. This application is important in various domains, such as health monitoring, supporting elders, and disease diagnosis. Considering the increasing improvements in smart de...

  • Article
  • Open Access
3 Citations
3,990 Views
26 Pages

Vision-Based Attentiveness Determination Using Scalable HMM Based on Relevance Theory

  • Prasertsak Tiawongsombat,
  • Mun-Ho Jeong,
  • Alongkorn Pirayawaraporn,
  • Joong-Jae Lee and
  • Joo-Seop Yun

3 December 2019

Attention capability is an essential component of human–robot interaction. Several robot attention models have been proposed which aim to enable a robot to identify the attentiveness of the humans with which it communicates and gives them its a...

  • Article
  • Open Access
236 Views
27 Pages

SEP-HMM: A Flexible Hidden Markov Model Framework for Asymmetric and Non-Mesokurtic Emission Patterns

  • Didik Bani Unggul,
  • Nur Iriawan,
  • Irhamah Irhamah and
  • Andriyas Aryo Prabowo

23 January 2026

This paper proposes a new Hidden Markov Model (HMM) framework integrated with the Skew Exponential Power (SEP) distribution, named SEP-HMM. The primary advantage of this method is its ability to capture and represent asymmetric and non-mesokurtic emi...

  • Article
  • Open Access
4 Citations
3,975 Views
19 Pages

Forward Hand Gesture Spotting and Prediction Using HMM-DNN Model

  • Mahmoud Elmezain,
  • Majed M. Alwateer,
  • Rasha El-Agamy,
  • Elsayed Atlam and
  • Hani M. Ibrahim

Automatic key gesture detection and recognition are difficult tasks in Human–Computer Interaction due to the need to spot the start and the end points of the gesture of interest. By integrating Hidden Markov Models (HMMs) and Deep Neural Networ...

  • Article
  • Open Access
12 Citations
3,103 Views
21 Pages

HMM-Based Action Recognition System for Elderly Healthcare by Colorizing Depth Map

  • Ye Htet,
  • Thi Thi Zin,
  • Pyke Tin,
  • Hiroki Tamura,
  • Kazuhiro Kondo and
  • Etsuo Chosa

Addressing the problems facing the elderly, whether living independently or in managed care facilities, is considered one of the most important applications for action recognition research. However, existing systems are not ready for automation, or f...

  • Article
  • Open Access
15 Citations
4,285 Views
16 Pages

Research on Pig Sound Recognition Based on Deep Neural Network and Hidden Markov Models

  • Weihao Pan,
  • Hualong Li,
  • Xiaobo Zhou,
  • Jun Jiao,
  • Cheng Zhu and
  • Qiang Zhang

16 February 2024

In order to solve the problem of low recognition accuracy of traditional pig sound recognition methods, deep neural network (DNN) and Hidden Markov Model (HMM) theory were used as the basis of pig sound signal recognition in this study. In this study...

  • Article
  • Open Access
7 Citations
4,230 Views
22 Pages

An HMM-DNN-Based System for the Detection and Classification of Low-Frequency Acoustic Signals from Baleen Whales, Earthquakes, and Air Guns off Chile

  • Susannah J. Buchan,
  • Miguel Duran,
  • Constanza Rojas,
  • Jorge Wuth,
  • Rodrigo Mahu,
  • Kathleen M. Stafford and
  • Nestor Becerra Yoma

13 May 2023

Marine passive acoustic monitoring can be used to study biological, geophysical, and anthropogenic phenomena in the ocean. The wide range of characteristics from geophysical, biological, and anthropogenic sounds sources makes the simultaneous automat...

  • Article
  • Open Access
1,020 Views
16 Pages

Trajectory Learning Using HMM: Towards Surgical Robotics Implementation

  • Juliana Manrique-Cordoba,
  • Carlos Martorell-Llobregat,
  • Miguel Ángel de la Casa-Lillo and
  • José María Sabater-Navarro

31 May 2025

Autonomy represents one of the most promising directions in the future development of surgical robotics, and Learning from Demonstration (LfD) is a key methodology for advancing technologies in this field. The proposed approach extends the classical...

  • Article
  • Open Access
6 Citations
2,453 Views
18 Pages

4 October 2024

Wearable gait analysis systems using inertial sensors offer the potential for easy-to-use gait assessment in lab and free-living environments. This can enable objective long-term monitoring and decision making for individuals with gait disabilities....

  • Article
  • Open Access
33 Citations
4,898 Views
14 Pages

A Novel Framework for Road Traffic Risk Assessment with HMM-Based Prediction Model

  • Xunjia Zheng,
  • Di Zhang,
  • Hongbo Gao,
  • Zhiguo Zhao,
  • Heye Huang and
  • Jianqiang Wang

7 December 2018

Over the past decades, there has been significant research effort dedicated to the development of intelligent vehicles and V2X systems. This paper proposes a road traffic risk assessment method for road traffic accident prevention of intelligent vehi...

  • Article
  • Open Access
11 Citations
3,144 Views
16 Pages

Packet Loss Characterization Using Cross Layer Information and HMM for Wi-Fi Networks

  • Carlos Alexandre Gouvea da Silva and
  • Carlos Marcelo Pedroso

8 November 2022

Packet loss is a major problem for wireless networks and has significant effects on the perceived quality of many internet services. Packet loss models are used to understand the behavior of packet losses caused by several reasons, e.g., interference...

  • Article
  • Open Access
1,282 Views
21 Pages

1 September 2025

Nanopore-based DNA sequencing has emerged as a transformative biosensing technology, enabling real-time molecular diagnostics in compact and mobile form factors. However, the computational complexity of the basecalling process—the step that tra...

  • Article
  • Open Access
18 Citations
5,756 Views
28 Pages

Radars, as active detection sensors, are known to play an important role in various intelligent devices. Target recognition based on high-resolution range profile (HRRP) is an important approach for radars to monitor interesting targets. Traditional...

  • Article
  • Open Access
164 Views
28 Pages

Robust HMM-Based Remaining Useful Life Estimation Using a Ridge-Regularized EM Algorithm

  • Halime Beyza Küçükdağ,
  • Gokhan Kirkil and
  • Mustafa Hekimoğlu

18 February 2026

Estimating the remaining useful life (RUL) of engineering systems is crucial for maintenance planning and the reliability of complex mechanical units. Accurate RUL predictions support timely interventions and help to prevent unexpected failures. This...

  • Article
  • Open Access
9 Citations
7,949 Views
16 Pages

Momentum Investment Strategy Using a Hidden Markov Model

  • Hosun Ryou,
  • Han Hee Bae,
  • Hee Soo Lee and
  • Kyong Joo Oh

28 August 2020

There has been a growing demand for portfolio management using artificial intelligence (AI). To sustain a competitive advantage for portfolio management, stock market investors require a strategic investment decision that can realize better returns....

  • Article
  • Open Access
44 Citations
13,479 Views
19 Pages

A Framework for Bioacoustic Vocalization Analysis Using Hidden Markov Models

  • Yao Ren,
  • Michael T. Johnson,
  • Patrick J. Clemins,
  • Michael Darre,
  • Sharon Stuart Glaeser,
  • Tomasz S. Osiejuk and
  • Ebenezer Out-Nyarko

18 November 2009

Using Hidden Markov Models (HMMs) as a recognition framework for automatic classification of animal vocalizations has a number of benefits, including the ability to handle duration variability through nonlinear time alignment, the ability to incorpor...

  • Article
  • Open Access
3 Citations
3,388 Views
11 Pages

Unveiling the Relationship between Ceftobiprole and High-Molecular-Mass (HMM) Penicillin-Binding Proteins (PBPs) in Enterococcus faecalis

  • Paola Conti,
  • Lorenzo Mattia Lazzaro,
  • Fabio Longo,
  • Federica Lenzo,
  • Alessandra Giardina,
  • Sebastiano Alberto Fortuna,
  • Stefania Stefani and
  • Floriana Campanile

Low-affinity PBP4, historically linked to penicillin resistance in Enterococcus faecalis, may still have affinity for novel cephalosporins. Ceftobiprole (BPR) is a common therapeutic choice, even with PBP4-related overexpression and amino acid substi...

  • Article
  • Open Access
23 Citations
4,466 Views
13 Pages

13 October 2021

Over the years, WiFi received signal strength indicator (RSSI) measurements have been widely implemented for determining the location of a user’s position in an indoor environment, where the GPS signal might not be received. This method utilizes a hu...

  • Article
  • Open Access
296 Views
20 Pages

Target Fidelity and Failure: Structure–Activity Relationship of High-Molecular-Mass Penicillin-Binding Proteins (HMM-PBPs) in Refractory Granulicatella adiacens Endocarditis

  • Paola Conti,
  • Alberto Pagotto,
  • Sebastiano A. Fortuna,
  • Alessandra Giardina,
  • Grete F. Privitera,
  • Ester Rosa,
  • Assunta Sartor,
  • Carlo Tascini and
  • Floriana Campanile

Background/Objectives: Granulicatella adiacens infective endocarditis is conventionally managed with penicillin, ampicillin, or ceftriaxone in combination with gentamicin, although double beta-lactam regiments have been proposed a safer alternative t...

  • Review
  • Open Access
230 Citations
28,762 Views
26 Pages

An Overview of End-to-End Automatic Speech Recognition

  • Dong Wang,
  • Xiaodong Wang and
  • Shaohe Lv

7 August 2019

Automatic speech recognition, especially large vocabulary continuous speech recognition, is an important issue in the field of machine learning. For a long time, the hidden Markov model (HMM)-Gaussian mixed model (GMM) has been the mainstream speech...

  • Article
  • Open Access
3 Citations
1,722 Views
23 Pages

18 September 2024

In recent years, time series land cover products have been developed rapidly. However, the traditional classification strategy rarely considers time continuity and spatial consistency, which leads to the existence of unreasonable changes among the mu...

  • Article
  • Open Access
5 Citations
3,558 Views
23 Pages

24 August 2018

The majority of handwritten word recognition strategies are constructed on learning-based generative frameworks from letter or word training samples. Theoretically, constructing recognition models through discriminative learning should be the more ef...

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