scholarly journals A Comprehensive Review on Seismocardiogram: Current Advancements on Acquisition, Annotation, and Applications

Mathematics ◽  
2021 ◽  
Vol 9 (18) ◽  
pp. 2243
Author(s):  
Deepak Rai ◽  
Hiren Kumar Thakkar ◽  
Shyam Singh Rajput ◽  
Jose Santamaria ◽  
Chintan Bhatt ◽  
...  
Keyword(s):  
State Of The Art ◽  
Comprehensive Overview ◽  
Noninvasive Technique ◽  
New Techniques ◽  
Essential Information ◽  
Cardiac Health ◽  
Health Burdens ◽  
Rich Spectrum ◽  
Open Issues ◽  
Critical Aspects

In recent years, cardiovascular diseases are on the rise, and they entail enormous health burdens on global economies. Cardiac vibrations yield a wide and rich spectrum of essential information regarding the functioning of the heart, and thus it is necessary to take advantage of this data to better monitor cardiac health by way of prevention in early stages. Specifically, seismocardiography (SCG) is a noninvasive technique that can record cardiac vibrations by using new cutting-edge devices as accelerometers. Therefore, providing new and reliable data regarding advancements in the field of SCG, i.e., new devices and tools, is necessary to outperform the current understanding of the State-of-the-Art (SoTA). This paper reviews the SoTA on SCG and concentrates on three critical aspects of the SCG approach, i.e., on the acquisition, annotation, and its current applications. Moreover, this comprehensive overview also presents a detailed summary of recent advancements in SCG, such as the adoption of new techniques based on the artificial intelligence field, e.g., machine learning, deep learning, artificial neural networks, and fuzzy logic. Finally, a discussion on the open issues and future investigations regarding the topic is included.

scholarly journals Reconfigurable Intelligent Surface Aided Multi-User Communications: State-of-the-Art Techniques and Open Issues

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 118584-118605
Author(s):  
Munyaradzi Munochiveyi ◽  
Arjun Chakravarthi Pogaku ◽  
Dinh-Thuan Do ◽  
Anh-Tu Le ◽  
Miroslav Voznak ◽  
...  
Keyword(s):  
State Of The Art ◽  
Open Issues ◽  
Art Techniques

scholarly journals Critical Aspects of Person Counting and Density Estimation

2021 ◽  
Vol 7 (2) ◽  
pp. 21
Author(s):  
Roland Perko ◽  
Manfred Klopschitz ◽  
Alexander Almer ◽  
Peter M. Roth
Keyword(s):  
Density Estimation ◽  
Network Architecture ◽  
Reference Data ◽  
State Of The Art ◽  
Limit State ◽  
Ground Truth ◽  
Data Sets ◽  
Ground Truth Generation ◽  
Baseline Approach ◽  
Critical Aspects

Many scientific studies deal with person counting and density estimation from single images. Recently, convolutional neural networks (CNNs) have been applied for these tasks. Even though often better results are reported, it is often not clear where the improvements are resulting from, and if the proposed approaches would generalize. Thus, the main goal of this paper was to identify the critical aspects of these tasks and to show how these limit state-of-the-art approaches. Based on these findings, we show how to mitigate these limitations. To this end, we implemented a CNN-based baseline approach, which we extended to deal with identified problems. These include the discovery of bias in the reference data sets, ambiguity in ground truth generation, and mismatching of evaluation metrics w.r.t. the training loss function. The experimental results show that our modifications allow for significantly outperforming the baseline in terms of the accuracy of person counts and density estimation. In this way, we get a deeper understanding of CNN-based person density estimation beyond the network architecture. Furthermore, our insights would allow to advance the field of person density estimation in general by highlighting current limitations in the evaluation protocols.

Tourism public-private partnership (PPP) projects: an exploratory-sequential approach

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Marwa Ghanem ◽  
Ibrahim Elshaer ◽  
Samar Saad
Keyword(s):  
Interpersonal Relationships ◽  
Service Providers ◽  
Stakeholder Management ◽  
Comprehensive Overview ◽  
Sequential Approach ◽  
Essential Information ◽  
Content Type ◽  
The Government ◽  
The Relationship

Purpose This study aims to address the absence of a thorough understanding of commitment in tourism public-private partnerships (PPP) by exploring antecedents of PPP commitment and their underpinning relationships in regard to the destination management system (DMS). Design/methodology/approach An empirical investigation of the case of the Egyptian DMS, a PPP which was forsaken by the government partner and which subsequently failed. Qualitative and quantitative approaches are used for a comprehensive overview of the researched phenomena pertaining to external and internal stakeholders. Findings The results indicated that stakeholder management, relational capital, perceived benefits and stakeholder capabilities could influence intentions to commit to a tourism PPP project. Also, the latter three factors were found to mediate the relationship between stakeholder management and long-term PPP commitment. The results also shed light on the important aspects of non-contractual, interpersonal relationships between internal and external PPP stakeholders. Originality/value This research pioneers inquiries on the commitment of Tourism PPP/DMS projects and its possible drivers in a non-Western context. Also, this study contributes to knowledge by exploring the relationship within and between internal (partners) and external (e.g. local service providers) stakeholder groups and provided evidence on the crucial role of both on long-term PPP commitment and success. The current study has a few significant contributions to the PPP literature regarding the commitment and success of PPP in the complicated environments in which tourism PPP projects are operated. Moreover, this study offers essential information and practices for improving partner relationships with external stakeholders.

The Regulatory Debate About Energy Storage Systems: State of the Art and Open Issues

2017 ◽  
Vol 15 (5) ◽  
pp. 42-50 ◽  
Author(s):  
Ines Usera ◽  
Pablo Rodilla ◽  
Scott Burger ◽  
Ignacio Herrero ◽  
Carlos Batlle
Keyword(s):  
Energy Storage ◽  
State Of The Art ◽  
Storage Systems ◽  
Energy Storage Systems ◽  
Open Issues

scholarly journals Macroporous materials: microfluidic fabrication, functionalization and applications

2017 ◽  
Vol 46 (3) ◽  
pp. 855-914 ◽  
Author(s):  
Bingjie Wang ◽  
Pepijn Prinsen ◽  
Huizhi Wang ◽  
Zhishan Bai ◽  
Hualin Wang ◽  
...  
Keyword(s):  
State Of The Art ◽  
The State ◽  
Comprehensive Overview ◽  
Macroporous Materials

This article provides an up-to-date highly comprehensive overview (594 references) on the state of the art of the synthesis and design of macroporous materials using microfluidics and their applications in different fields.

scholarly journals A Survey of Graphical Page Object Detection with Deep Neural Networks

2021 ◽  
Author(s):  
Jwalin Bhatt ◽  
Khurram Azeem Hashmi ◽  
Muhammad Zeshan Afzal ◽  
Didier Stricker
Keyword(s):  
Deep Learning ◽  
Object Detection ◽  
Conceptual Understanding ◽  
Deep Neural Networks ◽  
State Of The Art ◽  
Learning Approaches ◽  
Document Images ◽  
Essential Information ◽  
Current State ◽  
High Level

In any document, graphical elements like tables, figures, and formulas contain essential information. The processing and interpretation of such information require specialized algorithms. Off-the-shelf OCR components cannot process this information reliably. Therefore, an essential step in document analysis pipelines is to detect these graphical components. It leads to a high-level conceptual understanding of the documents that makes digitization of documents viable. Since the advent of deep learning, the performance of deep learning-based object detection has improved many folds. In this work, we outline and summarize the deep learning approaches for detecting graphical page objects in the document images. Therefore, we discuss the most relevant deep learning-based approaches and state-of-the-art graphical page object detection in document images. This work provides a comprehensive understanding of the current state-of-the-art and related challenges. Furthermore, we discuss leading datasets along with the quantitative evaluation. Moreover, it discusses briefly the promising directions that can be utilized for further improvements.

International Law Concentrate

2021 ◽  
Author(s):  
Ilias Bantekas ◽  
Efthymios Papastavridis
Keyword(s):  
International Law ◽  
International System ◽  
Comprehensive Overview ◽  
Essential Information ◽  
Peaceful Settlement ◽  
Questions And Answers ◽  
The Law ◽  
Settlement Of Disputes ◽  
The Relationship ◽  
Domestic Law

Each Concentrate revision guide is packed with essential information, key cases, revision tips, exam Q&As, and more. Concentrates show you what to expect in a law exam, what examiners are looking for, and how to achieve extra marks. International Law Concentrate provides a comprehensive overview of international law and includes key information, key cases, revision tips, and exam questions and answers. Topics covered include the nature of international law and the international system, sources of international law, and the law of treaties. The book also looks at the relationship between international and domestic law. It considers personality, statehood, and recognition, as well as sovereignty, jurisdiction, immunity, and the law of the sea. The book describes state responsibility and looks at peaceful settlement of disputes. Finally, it looks at the use of force and human rights.

The Oxford Handbook of Peacebuilding, Statebuilding, and Peace Formation

2021 ◽  
Keyword(s):  
State Of The Art ◽  
Comprehensive Overview ◽  
Political Implications ◽  
Peace And Conflict ◽  
Conceptual Foundations ◽  
Critical Overview ◽  
Local Levels

The Oxford Handbook of Peacebuilding, Statebuilding, and Peace Formation offers an authoritative and comprehensive overview of peacebuilding, statebuilding, and peace formation. With contributions from over thirty distinguished and leading scholars, the Handbook provides a timely, engaging, and critical overview of conceptual foundations, political implications, and tensions at the global, regional, and local levels. It examines the key policies, practices, examples, and discourses underlining various segments of peacebuilding, statebuilding, and peace formation both as discursive formulations and as policy practices. Organized around four major thematic sections, the Handbook offers a state-of-the-art synthesis of the most pressing contemporary peace and conflict issues and charts new pathways for responding to transnational insecurities.

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