scholarly journals Recent Progress of Anomaly Detection

Complexity ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Xiaodan Xu ◽  
Huawen Liu ◽  
Minghai Yao
Keyword(s):  
Anomaly Detection ◽  
Credit Card ◽  
Critical Role ◽  
Detection Methods ◽  
Future Research ◽  
Comprehensive Overview ◽  
Wide Range ◽  
Pros And Cons ◽  
Anomaly Analysis ◽  
Public Datasets

Anomaly analysis is of great interest to diverse fields, including data mining and machine learning, and plays a critical role in a wide range of applications, such as medical health, credit card fraud, and intrusion detection. Recently, a significant number of anomaly detection methods with a variety of types have been witnessed. This paper intends to provide a comprehensive overview of the existing work on anomaly detection, especially for the data with high dimensionalities and mixed types, where identifying anomalous patterns or behaviours is a nontrivial work. Specifically, we first present recent advances in anomaly detection, discussing the pros and cons of the detection methods. Then we conduct extensive experiments on public datasets to evaluate several typical and popular anomaly detection methods. The purpose of this paper is to offer a better understanding of the state-of-the-art techniques of anomaly detection for practitioners. Finally, we conclude by providing some directions for future research.

scholarly journals Impact of Housing Environment on the Immune System in Chickens: A Review

Animals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1138 ◽  
Author(s):  
Tanja Hofmann ◽  
Sonja S. Schmucker ◽  
Werner Bessei ◽  
Michael Grashorn ◽  
Volker Stefanski
Keyword(s):  
Immune System ◽  
Allostatic Load ◽  
Current Knowledge ◽  
Future Research ◽  
Poultry Production ◽  
Negative Consequences ◽  
Comprehensive Overview ◽  
Housing Environment ◽  
Wide Range ◽  
The Impact

During their lifespan, chickens are confronted with a wide range of acute and chronic stressors in their housing environment that may threaten their welfare and health by modulating the immune system. Especially chronic stressful conditions can exceed the individual’s allostatic load, with negative consequences for immunity. A fully functional immune system is mandatory for health and welfare and, consequently, also for high productivity and safe animal products. This review provides a comprehensive overview of the impact of housing form, light regime as well as aerial ammonia and hydrogen sulfide concentrations on the immune system in chickens. Certain housing conditions are clearly associated with immunological alterations which potentially impair the success of vaccinations or affect disease susceptibility. Such poor conditions counteract sustainable poultry production. This review also outlines current knowledge gaps and provides recommendations for future research.

Caregiving for ageing parents: A literature review on the experience of adult children

2019 ◽  
pp. 096973301988171
Author(s):  
Ina Luichies ◽  
Anne Goossensen ◽  
Hanneke van der Meide
Keyword(s):  
Literature Review ◽  
Adult Children ◽  
Research Process ◽  
Qualitative Studies ◽  
Future Research ◽  
Comprehensive Overview ◽  
Eligibility Criteria ◽  
Wide Range ◽  
Ageing Parents

Background: More and more adults in their fifties and sixties are confronted with the need to support their ageing parents. Although many aspects of filial caregiving have been researched, a well-documented and comprehensive overview of the caregiving experience is lacking. Aim: This study aims for a better understanding of the caregiving experience of adult children by generating an overview of main themes in international research. Method: A literature review of qualitative studies, focusing on the experiences of adult children caring for their ageing parents, was performed. The electronic EBSCO databases Academic Search Premier, CINAHL and PsycINFO, and Google Scholar were searched to identify relevant qualitative studies published between 2000 and 2017. The ‘SPIDER’ eligibility criteria directed the approach. The quality of studies included was screened with the assessment sheet designed by Hawker and colleagues. The experiences reported were analysed and themes were synthesized. Ethical consideration: Ethical requirements were respected in every phase of the research process. Findings: Nineteen qualitative studies met the inclusion criteria. The quality of the relationship with the parent appears to be an important determinant of the children’s caregiving experience. Within this context, three themes were found: caregiving as an emotional rollercoaster, a normatively demanding experience and an opportunity for personal development. Discussion: Children caring for their ageing parents have to deal with a wide range of contradicting and conflicting norms and values. Implications for healthcare professionals and future research have been discussed. Conclusion: Caring for ageing parents is a continuous quest for giving the best possible care and living up to one’s personal values, within the context of the parent’s declining health. Professionals who support filial caregivers should address not only practical responsibilities but also the normative questions and moral considerations caregivers are dealing with.

A Unified Perspective for Disinformation Detection and Truth Discovery in Social Sensing: A Survey

2023 ◽  
Vol 55 (1) ◽  
pp. 1-33
Author(s):  
Fan Xu ◽  
Victor S. Sheng ◽  
Mingwen Wang
Keyword(s):  
Online Social Networks ◽  
Low Cost ◽  
Future Research ◽  
Data Sets ◽  
Real World Data ◽  
Comprehensive Overview ◽  
Social Sensing ◽  
Source Codes ◽  
Truth Discovery ◽  
Pros And Cons

With the proliferation of social sensing, large amounts of observation are contributed by people or devices. However, these observations contain disinformation. Disinformation can propagate across online social networks at a relatively low cost, but result in a series of major problems in our society. In this survey, we provide a comprehensive overview of disinformation and truth discovery in social sensing under a unified perspective, including basic concepts and the taxonomy of existing methodologies. Furthermore, we summarize the mechanism of disinformation from four different perspectives (i.e., text only, text with image/multi-modal, text with propagation, and fusion models). In addition, we review existing solutions based on these requirements and compare their pros and cons and give a sort of guide to usage based on a detailed lesson learned. To facilitate future studies in this field, we summarize related publicly accessible real-world data sets and open source codes. Last but the most important, we emphasize potential future research topics and challenges in this domain through a deep analysis of most recent methods.

scholarly journals Recent Advancement in Anomaly Detection in Surveillance Videos

2019 ◽  
Vol 8 (2) ◽  
pp. 964-970
Keyword(s):  
Computer Vision ◽  
Anomaly Detection ◽  
Video Data ◽  
Detection Methods ◽  
Future Research ◽  
Detection Techniques ◽  
Advantages And Disadvantages ◽  
Recent Computer ◽  
Banking Education ◽  
To Come

Detection of Anomaly is of a notable and emergent problem into many diverse fields like information theory, deep learning, computer vision, machine learning, and statistics that have been researched within the various application from diverse domains including agriculture, health care, banking, education, and transport anomaly detection. Newly, numbers of important anomaly detection techniques along with diverseness of sort have been watched. The main aim of this paper to come up with a broad summary of the present development on detection of an anomaly, exclusively for video data with mixed types and high dimensionalities, where identifying the anomalous behaviors and event or anomalous patterns is a significant task. The paper expresses the advantages and disadvantages of the detection methods the experiments tried on the publically available benchmark dataset to assess numerous popular and classical methods and models. The objective of this analysis is to furnish an understanding of recent computer vision and machine algorithms methods and also state-of-the-art deep learnings techniques to detect anomalies for researchers. At last, the paper delivered roughly directions for future research on an anomalies detection.

Deep Learning-based Anomaly Detection in Cyber-physical Systems

2021 ◽  
Vol 54 (5) ◽  
pp. 1-36
Author(s):  
Yuan Luo ◽  
Ya Xiao ◽  
Long Cheng ◽  
Guojun Peng ◽  
Danfeng (Daphne) Yao
Keyword(s):  
Deep Learning ◽  
Anomaly Detection ◽  
Cyber Physical Systems ◽  
Detection Methods ◽  
Future Research ◽  
Open Problems ◽  
Physical Systems ◽  
Domain Specific ◽  
Domain Specific Knowledge ◽  
Review State

Anomaly detection is crucial to ensure the security of cyber-physical systems (CPS). However, due to the increasing complexity of CPSs and more sophisticated attacks, conventional anomaly detection methods, which face the growing volume of data and need domain-specific knowledge, cannot be directly applied to address these challenges. To this end, deep learning-based anomaly detection (DLAD) methods have been proposed. In this article, we review state-of-the-art DLAD methods in CPSs. We propose a taxonomy in terms of the type of anomalies, strategies, implementation, and evaluation metrics to understand the essential properties of current methods. Further, we utilize this taxonomy to identify and highlight new characteristics and designs in each CPS domain. Also, we discuss the limitations and open problems of these methods. Moreover, to give users insights into choosing proper DLAD methods in practice, we experimentally explore the characteristics of typical neural models, the workflow of DLAD methods, and the running performance of DL models. Finally, we discuss the deficiencies of DL approaches, our findings, and possible directions to improve DLAD methods and motivate future research.

scholarly journals A Conceptual Review of Positive Teacher Interpersonal Communication Behaviors in the Instructional Context

2021 ◽  
Vol 12 ◽  
Author(s):  
Fei Xie ◽  
Ali Derakhshan
Keyword(s):  
General Education ◽  
Interpersonal Communication ◽  
Academic Outcomes ◽  
Teacher Educators ◽  
Critical Role ◽  
Instructional Communication ◽  
Future Research ◽  
Communication Behaviors ◽  
Wide Range

Following the recent special issue in Frontiers in Psychology, entitled “The Role of Teacher Interpersonal Variables in Students’ Academic Engagement, Success, and Motivation,” calling educational researchers worldwide to examine different teacher interpersonal communication behaviors that contribute to student-related academic outcomes, this conceptual review article is written to familiarize educational researchers, teachers, and students with main concepts in instructional communication and their role as the main pillar of successful teaching and learning processes. To this aim, by drawing on the positive psychology movement and the rhetorical and relational goal theory in instructional communication, we argue that positive teacher interpersonal communication behaviors are facilitators of a wide range of desirable student-related academic outcomes. Then, to support our argument, we provide empirical evidence. In doing so, we introduce and define seven instances of positive teacher interpersonal communication behaviors, namely teacher care, clarity, credibility, rapport with students, stroke, immediacy, and confirmation, and expound how they positively predict academic outcomes such as motivation, learning, engagement, involvement, class attendance, willingness to communicate, performance, and success in students. Subsequently, we highlight the critical role of teacher interpersonal variables in the foreign/second language classroom context. Next, we suggest some pedagogical implications with the potential to enlighten the practice of key educational stakeholders (i.e., teachers, students, teacher educators, materials developers, administrators, and teacher recruiters). At the end, the limitations in this line of research are identified, and avenues for future research on teacher interpersonal communication in both general education and language education domains are put forward for interested researchers.

scholarly journals Reading and Deafness: State of the Evidence and Implications for Research and Practice

2019 ◽  
Vol 9 (3) ◽  
pp. 216 ◽  
Author(s):  
Beverly Trezek ◽  
Connie Mayer
Keyword(s):  
Critical Role ◽  
Future Research ◽  
Language Abilities ◽  
Deaf Students ◽  
Phonological Skills ◽  
Research And Practice ◽  
Deaf Readers ◽  
Wide Range ◽  
Research Findings ◽  
Age Appropriate

Over the years, persistently low achievement levels have led scholars to question whether reading skill development is different for deaf readers. Research findings suggest that in order for deaf students to become proficient readers, they must master the same fundamental abilities that are well established for hearing learners, regardless of the degree of hearing loss or communication modality used (e.g., spoken or signed). The simple view of reading (SVR), which hypothesizes the critical role both language abilities and phonological skills play in development of reading comprehension, provides a model for understanding the reading process for a wide range of students and has the potential to shed light on the challenges deaf students have historically experienced in achieving age-appropriate outcomes. Therefore, the purpose of this paper is to review the components of the SVR and use this conceptual model as the basis for exploring and discussing both historical and current research evidence in reading and deafness, with a particular focus on phonological skills. Recommendations for future research and practice based on the existing body of literature will also be provided.

scholarly journals A Review of Temporary Housing Management Modeling: Trends in Design Strategies, Optimization Models, and Decision-Making Methods

2020 ◽  
Vol 12 (24) ◽  
pp. 10388
Author(s):  
Daniel Perrucci ◽  
Hiba Baroud
Keyword(s):  
Disaster Response ◽  
Critical Role ◽  
Future Research ◽  
Design Strategies ◽  
Temporary Housing ◽  
Comprehensive Overview ◽  
Housing Management ◽  
Proactive Management ◽  
Displaced People ◽  
Design Type

Temporary housing plays a critical role in disaster response and recovery by providing a temporary home for displaced people before they return to their permanent residence. In recent years, temporary housing has faced three primary dilemmas related to design type, site selection, and cost. Significant contributions have been made in research and in practice to improve temporary housing management. However, gaps still exist in resolving the dilemmas, and a critical review and evaluation of current methods is needed to determine the path forward and identify priorities of future research. This paper presents a comprehensive overview of prior methods developed and applied towards temporary housing management and identifies future pathways for success in temporary housing research and implementation. The literature review reveals that temporary housing requires further research in proactive management, storage, sustainability, and community resilience to effectively enhance post-disaster temporary housing. This study finds that programs such as the Leadership in Energy and Environmental Design (LEED) and the Sheltering and Temporary Essential Power (STEP) program provide methodologies which can benefit temporary housing implementation, designs, and modeling. In addition, circular economy thinking can enable the recyclability of temporary housing to reduce economic and environmental impacts.

scholarly journals Person-following by autonomous robots: A categorical overview

2019 ◽  
Vol 38 (14) ◽  
pp. 1581-1618 ◽  
Author(s):  
Md Jahidul Islam ◽  
Jungseok Hong ◽  
Junaed Sattar
Keyword(s):  
Social Interactions ◽  
Autonomous Robots ◽  
Large Body ◽  
Future Research ◽  
Comprehensive Overview ◽  
Open Problems ◽  
Working Environments ◽  
Person Following ◽  
Wide Range ◽  
Prospective Application

A wide range of human–robot collaborative applications in diverse domains, such as manufacturing, health care, the entertainment industry, and social interactions, require an autonomous robot to follow its human companion. Different working environments and applications pose diverse challenges by adding constraints on the choice of sensors, degree of autonomy, and dynamics of a person-following robot. Researchers have addressed these challenges in many ways and contributed to the development of a large body of literature. This paper provides a comprehensive overview of the literature by categorizing different aspects of person-following by autonomous robots. Also, the corresponding operational challenges are identified based on various design choices for ground, underwater, and aerial scenarios. In addition, state-of-the-art methods for perception, planning, control, and interaction are elaborately discussed and their applicability in varied operational scenarios is presented. Then some of the prominent methods are qualitatively compared, corresponding practicalities are illustrated, and their feasibility is analyzed for various use cases. Furthermore, several prospective application areas are identified, and open problems are highlighted for future research.

scholarly journals Application of PEDOT:PSS and Its Composites in Electrochemical and Electronic Chemosensors

Chemosensors ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 79
Author(s):  
Nan Gao ◽  
Jiarui Yu ◽  
Qingyun Tian ◽  
Jiangfan Shi ◽  
Miao Zhang ◽  
...  
Keyword(s):  
Electrochemical Stability ◽  
Research Progress ◽  
Future Research ◽  
Polystyrene Sulfonate ◽  
Fabrication Technology ◽  
Comprehensive Overview ◽  
Wide Range ◽  
Varying Environments ◽  
Electronic Sensors ◽  
Gaseous Chemical

Poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) is a highly important and attractive conducting polymer as well as commercially available in organic electronics, including electrochemical and electronic chemosensors, due to its unique features such as excellent solution-fabrication capability and miscibility, high and controllable conductivity, excellent chemical and electrochemical stability, good optical transparency and biocompatibility. In this review, we present a comprehensive overview of the recent research progress of PEDOT:PSS and its composites, and the application in electrochemical and electronic sensors for detecting liquid-phase or gaseous chemical analytes, including inorganic or organic ions, pH, humidity, hydrogen peroxide (H2O2), ammonia (NH3), CO, CO2, NO2, and organic solvent vapors like methanol, acetone, etc. We will discuss in detail the structural, architectural and morphological optimization of PEDOT:PSS and its composites with other additives, as well as the fabrication technology of diverse sensor systems in response to a wide range of analytes in varying environments. At the end of the review will be given a perspective summary covering both the key challenges and potential solutions in the future research of PEDOT:PSS-based chemosensors, especially those in a flexible or wearable format.

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