A point on the distinction between design and science is given and the connotanons of aeslgn science are discussed in the paper. Design should be understood as the first step of all human＇ s purposeful activity, whic...A point on the distinction between design and science is given and the connotanons of aeslgn science are discussed in the paper. Design should be understood as the first step of all human＇ s purposeful activity, which is a daily behavior for everyone. Four laws are summarized, which describe the basic patterns of design and are the constituents of design science. They are the law of design based on existed knowledge, law of in- completeness of design knowledge, law of design centered on new knowledge acquirement and law of competi- tiveness of design knowledge. The four basic laws show the knowledge essence of design. To enrich the existed knowledge, to make it convenient to be used, to teach designers with high intuition and inspiration in picking useful elements of existed knowledge and shaping competitive ideas and to have strong new knowledge acquire- ment facility are the basic conditions of good designs. Study of design science will promote the structure of tra- ditional engineering education. An important conclusion is derived that there will be no successful innovation without good design.展开更多
Multiorganizational response to emergencies and disasters requires collaboration.How to improve the collective response is therefore an essential question,but not easy to answer.In disaster research,normative research...Multiorganizational response to emergencies and disasters requires collaboration.How to improve the collective response is therefore an essential question,but not easy to answer.In disaster research,normative research with a focus on providing evidence for how to improve professional practice has traditionally received less attention than explanatory ones.The aim of this article,using insights from design science where normative research is more common,is to suggest a complementary approach to response management research.Our approach,which combines experimental and explanatory research,is applied to a study of goal alignment.Goal alignment among response actors is often recommended despite literature’s contradictory evidence regarding its effect.We conducted an experiment with 111 participants,who,in groups of three,played a computer game under one of two conditions(goal alignment or not).Our results show that aligning goals did not improve the outcome in the game.Although this may serve as a counterargument to implementing goal alignment interventions,there are concerns with such conclusions.These reservations include,but are not limited to,the lack of validated models to use in experiments.Nevertheless,our suggested research approach and the goal alignment experiment highlight the importance of testing interventions and their effectiveness before implementation.展开更多
The paper is a part of an ongoing study, labelled as ＂Designing out wicked problems＂ - a design science research （DSR） study with the purpose of developing, implementing, and evaluating a methodology framework for...The paper is a part of an ongoing study, labelled as ＂Designing out wicked problems＂ - a design science research （DSR） study with the purpose of developing, implementing, and evaluating a methodology framework for designing multi-stakeholder business models. The objective of the current paper is to evaluate the business model design framework within a DSR framework. The research is conducted as three-year case study at three sites： The Danish police, with a key player in the Danish energy sector, and the municipality of the Danish capital, Copenhagen. The research method is action research, with a structure of planning-action-evaluation process conducted with the case owners - as well as design science methodology, where an artifact （the multi-stakeholder business model design concept） is created, evaluated and altered to improve its functionality. The finding of this study is that the maturity of the application domain - the type of problem the concept is trying to solve - as well as of the concept itself, is low. The conclusion is thus that the knowledge contribution of the study is of a unique invention character which will lay the foundation for further evaluation and research.展开更多
This article presents the scenario of programming use by architects and engineers,creating their own unique tools.The goal is to emulate and understand the phenomenon of Building Information Modeling(BIM)software cust...This article presents the scenario of programming use by architects and engineers,creating their own unique tools.The goal is to emulate and understand the phenomenon of Building Information Modeling(BIM)software customization by developing plug-ins that can explore the human-environment relationship.Demonstrate the process for building a plugin that seeks to equalize the theory of accessibility technical standards,visually impaired and architects.Use Design Science Research methodologies to guide the construction of artifacts for specific practical problems and the Collaborative Design/Co-design to understand and know the users’expertise.It is argued that the low quality of projects that include elements for the orientation of the visually impaired in Brazil is often related to an unstructured methodology in which important aspects such as the real needs of this group and the human-environment relationship are neglected.展开更多
Based on the background of the revitalization of Northeast China and industrial transformation,with the goal of serving society with design,leading the future with design,and revitalizing the economy with design,we ad...Based on the background of the revitalization of Northeast China and industrial transformation,with the goal of serving society with design,leading the future with design,and revitalizing the economy with design,we adhere to the innovative,comprehensive and cultural design talent cultivation concept,fully practice the“student-centered,output-oriented,continuously-improving”educational philosophy taking quality as the first priority,and continuously improve the theoretical system and implementation path for cultivation of postgraduate talents in design science,hoping to optimize the entire process of talent cultivation.Meanwhile,on the basis of“fostering character and civic virtue,cultivating people in a three-all manner,and cultivating people from five aspects simultaneously”,we cultivate high-quality design talents with brand-new models and ideas,through a series of educational reform measures,such as strategic cooperation,resource integration,systematic sorting,quality improvement,standard formulation,strengthening characteristics,platform construction,so that the quality of talents and social development can be perfectly integrated and mutually assist each other to achieve a win-win effect,and the training of design talents can be implemented and serve the society.展开更多
This paper reports the developed mobile application through the use of advanced technologies such as mobile computing, cloud computing and Global Positioning System (GPS) in order to solve the challenges. The purpose ...This paper reports the developed mobile application through the use of advanced technologies such as mobile computing, cloud computing and Global Positioning System (GPS) in order to solve the challenges. The purpose of this study is to find out how the recent advances and mass adoption of ICT by the public can best be leveraged to enhance the performance of Civil Society Organizations (CSOs) in East Africa. The data collection techniques used are through questionnaires, observations and conducting interviews with different stakeholders in the civil society arena i.e., the donors, the CSOs and the people in society that are given a voice by civil societies. In the system development phase, agile development methodology was used. Analysis of the data collected showed that there is a gap in the availability of a single or a centralized platform which can be easily accessed, user-friendly and reliable where different actors can readily get reliable and up-to-date information about the available CSOs they are interested in. To address this problem, an interactive online directory of CSOs has been developed. The platform is mobile based and enables CSOs to register and fill up their current details, thus ensuring that there is always correct and updated information. The platform is equipped with, among other features, a geo-mapping facility which enables users of the system to correctly geo-locate their civil societies of interest on a map view. The results of system evaluation showed that 88.125% of users were satisfied with the system basing on the evaluation criteria.展开更多
Solar cells made from perovskites have experienced rapid development as examples of third-generation solar cells in recent years. The traditional trial-and-error method is inefficient, and the search space is incredib...Solar cells made from perovskites have experienced rapid development as examples of third-generation solar cells in recent years. The traditional trial-and-error method is inefficient, and the search space is incredibly large. This makes developing advanced perovskite materials, as well as high conversion efficiencies and stability of perovskite solar cells (PSCs), a challenging task. A growing number of data-driven machine learning (ML) applications are being developed in the materials science field, due to the availability of large databases and increased computing power. There are many advantages associated with the use of machine learning to predict the properties of potential perovskite materials, as well as provide additional knowledge on how these materials work to fast-track their progress. Thus, the purpose of this paper is to develop a conceptual model to improve the efficiency of a perovskite solar cell using machine learning techniques in order to improve its performance. This study relies on the application of design science as a method to conduct the research as part of the study. The developed model consists of six phases: Data collection and preprocessing, feature selection and engineering, model training and evaluation, performance assessment, optimization and fine-tuning, and deployment and application. As a result of this model, there is a great deal of promise in advancing the field of perovskite solar cells as well as providing a basis for developing more efficient and cost-effective solar energy technologies in the future.展开更多
In recent years, there has been a revolution in the way that we transmit information through optical communication systems, allowing for fast and high-capacity data transmission using optical communication systems. Du...In recent years, there has been a revolution in the way that we transmit information through optical communication systems, allowing for fast and high-capacity data transmission using optical communication systems. Due to the growing demand for higher-capacity and faster networks, traditional optical communication systems are reaching their limits due to the increasing demand for faster and higher-capacity networks. The advent of machine learning and deep learning approaches has led to the emergence of powerful tools that can dramatically enhance the performance of optical communication systems with significant efficiency improvements. In this paper, we provide an overview of the role that machine learning (ML) and deep learning can play in enhancing the performance of various aspects of optical communication systems, including modulation techniques, channel modelling, equalization, and system optimization methods. The paper discusses the advantages of these approaches, such as improved spectral efficiency, reduced latency, and improved robustness to impairments in the channel, such as spectrum degradation. Additionally, a discussion is made regarding the potential challenges and limitations associated with using machine learning and deep learning in optical communication systems as well as their potential benefits. The purpose of this paper is to provide insight and highlight the potential of these approaches to improve optical communication in the future.展开更多
Saudi Arabian banks are deeply concerned about how to effectively monitor and control security threats. In recent years, the country has taken several steps towards restructuring its organizational security and, conse...Saudi Arabian banks are deeply concerned about how to effectively monitor and control security threats. In recent years, the country has taken several steps towards restructuring its organizational security and, consequently, protecting financial institutions and their clients. However, there are still several challenges left to be addressed. Accordingly, this article aims to address this problem by proposing an abstract framework based on the National Institute of Standards and Technology (NIST) Cybersecurity Framework and International Organization for Standardization/International Electrotechnical Commission (ISO/IEC 27001). The framework proposed in this paper considers the following factors involved in the security policy of Saudi banks: safety, Saudi information bank, operations and security of Saudi banks, Saudi banks’ supplier relationships, risk assessment, risk mitigation, monitoring and detection, incident response, Saudi banks’ business continuity, compliance, education, and awareness about all factors contributing to the framework implementation. This way, the proposed framework provides a comprehensive, unified approach to managing bank security threats. Not only does the proposed framework provide effective guidance on how to identify, assess, and mitigate security threats, but it also instructs how to develop policy and procedure documents relating to security issues.展开更多
Security risk assessment refers to the process of identifying, analyzing, and evaluating potential security risks for an organization. An organization’s assets, personnel, and operations are protected through it as p...Security risk assessment refers to the process of identifying, analyzing, and evaluating potential security risks for an organization. An organization’s assets, personnel, and operations are protected through it as part of a comprehensive security program. Various security assessments models have been published in the literature to protect the Saudi organization’s assets, personnel, and operations. However, these models are redundant and were developed for specific purposes. Hence, the comprehensive security risk assessment model used to safeguard Saudi organizations’ assets, personnel, and operations is still omitted. Using a design science methodology, the objective of this study is to develop a comprehensive security risk assessment model called CSRAM to assess security risks in Saudi Arabian organizations based on the International Organization for Standardization and the International Electrotechnical Commission/Information security risk management (ISO/IEC 27005 ISRM) standard. CSRAM is made up of six stages: threat identification, vulnerability assessment, risk analysis, risk evaluation, risk treatment, and monitoring and review of the risk. The stages have many activities and tasks that need to be accomplished at each stage. Based on the results of the validation of the completeness of the CSRAM, we can say that the CSRAM covers the whole ISO/IEC 27005 ISRM standard, and it is complete.展开更多
With the ongoing advancements in sensor networks and data acquisition technologies across various systems like manufacturing,aviation,and healthcare,the data driven vibration control(DDVC)has attracted broad interests...With the ongoing advancements in sensor networks and data acquisition technologies across various systems like manufacturing,aviation,and healthcare,the data driven vibration control(DDVC)has attracted broad interests from both the industrial and academic communities.Input shaping(IS),as a simple and effective feedforward method,is greatly demanded in DDVC methods.It convolves the desired input command with impulse sequence without requiring parametric dynamics and the closed-loop system structure,thereby suppressing the residual vibration separately.Based on a thorough investigation into the state-of-the-art DDVC methods,this survey has made the following efforts:1)Introducing the IS theory and typical input shapers;2)Categorizing recent progress of DDVC methods;3)Summarizing commonly adopted metrics for DDVC;and 4)Discussing the engineering applications and future trends of DDVC.By doing so,this study provides a systematic and comprehensive overview of existing DDVC methods from designing to optimizing perspectives,aiming at promoting future research regarding this emerging and vital issue.展开更多
Data Science(DS)as defined by Jim Gray is an emerging paradigm in all research areas to help finding non-obvious patterns of relevance in large distributed data collections.“Open Science by Design”(OSD),i.e.,making ...Data Science(DS)as defined by Jim Gray is an emerging paradigm in all research areas to help finding non-obvious patterns of relevance in large distributed data collections.“Open Science by Design”(OSD),i.e.,making artefacts such as data,metadata,models,and algorithms available and re-usable to peers and beyond as early as possible,is a pre-requisite for a flourishing DS landscape.However,a few major aspects can be identified hampering a fast transition:(1)The classical“Open Science by Publication”(OSP)is not sufficient any longer since it serves different functions,leads to non-acceptable delays and is associated with high curation costs.Changing data lab practices towards OSD requires more fundamental changes than OSP.(2)The classical publication-oriented models for metrics,mainly informed by citations,will not work anymore since the roles of contributors are more difficult to assess and will often change,i.e.,other ways for assigning incentives and recognition need to be found.(3)The huge investments in developing DS skills and capacities by some global companies and strong countries is leading to imbalances and fears by different stakeholders hampering the acceptance of Open Science(OS).(4)Finally,OSD will depend on the availability of a global infrastructure fostering an integrated and interoperable data domain-“one data-domain”as George Strawn calls it-which is still not visible due to differences about the technological key pillars.OS therefore is a need for DS,but it will take much more time to implement it than we may have expected.展开更多
While blockchain technology is commonly considered potentially disruptive in various regards,there is a lack of understanding where and how blockchain technology is effectively applicable and where it has remarkable p...While blockchain technology is commonly considered potentially disruptive in various regards,there is a lack of understanding where and how blockchain technology is effectively applicable and where it has remarkable practical effects~([1]).Against this background,we present and discuss a case study at length on the impact of this technology in the concrete setting of small short-term loans in retail banking.We propose to banks a robust and scalable blockchain technology with proof of stake and limited energy consumption used to streamline their processes,resulting in lower transaction and administration costs.This is made possible by smart contracts.Thereby,we facilitate small scale lending at high frequencies and short-term duration as well as an easier and more efficient way to connect small borrowers and lenders.展开更多
Due to urban expansion,agriculture,and the long history of the cadastre in Finland,the cadastral index map has millions of border markers that have low spatial accuracy,incomplete feature properties or both.The low qu...Due to urban expansion,agriculture,and the long history of the cadastre in Finland,the cadastral index map has millions of border markers that have low spatial accuracy,incomplete feature properties or both.The low quality of the border markers creates issues,such as forest cutting machines cutting from the wrong side of the border.As it is unfeasible for the national mapping agency to remeasure all these border markers,crowdsourcing is seen as a solution.However,the task of locating and measuring border markers requires motivated citizens.Therefore,in this study,a gamified map-based artefact enabling citizens to refine the quality of border markers in the cadastral index map was created.The artefact was designed,developed,demonstrated,and evaluated following the design science research approach.This study demonstrated with high sample size that gamified crowdsourcing is viable for motivating citizens to perform even challenging tasks.Of the applied gamification affordances,progression,points,and leaderboard were the most motivating.It was also found that involving stakeholders early in the creation process and focusing on usability of the artefact resulted in a pleasing user experience for the citizens.The artefact even spun a self-organised mapping party during its demonstration.展开更多
基金National Natural Science Foundation of China(No.50935004)
文摘A point on the distinction between design and science is given and the connotanons of aeslgn science are discussed in the paper. Design should be understood as the first step of all human＇ s purposeful activity, which is a daily behavior for everyone. Four laws are summarized, which describe the basic patterns of design and are the constituents of design science. They are the law of design based on existed knowledge, law of in- completeness of design knowledge, law of design centered on new knowledge acquirement and law of competi- tiveness of design knowledge. The four basic laws show the knowledge essence of design. To enrich the existed knowledge, to make it convenient to be used, to teach designers with high intuition and inspiration in picking useful elements of existed knowledge and shaping competitive ideas and to have strong new knowledge acquire- ment facility are the basic conditions of good designs. Study of design science will promote the structure of tra- ditional engineering education. An important conclusion is derived that there will be no successful innovation without good design.
基金The research for this article was financially supported by the Swedish Civil Contingencies Agency.
文摘Multiorganizational response to emergencies and disasters requires collaboration.How to improve the collective response is therefore an essential question,but not easy to answer.In disaster research,normative research with a focus on providing evidence for how to improve professional practice has traditionally received less attention than explanatory ones.The aim of this article,using insights from design science where normative research is more common,is to suggest a complementary approach to response management research.Our approach,which combines experimental and explanatory research,is applied to a study of goal alignment.Goal alignment among response actors is often recommended despite literature’s contradictory evidence regarding its effect.We conducted an experiment with 111 participants,who,in groups of three,played a computer game under one of two conditions(goal alignment or not).Our results show that aligning goals did not improve the outcome in the game.Although this may serve as a counterargument to implementing goal alignment interventions,there are concerns with such conclusions.These reservations include,but are not limited to,the lack of validated models to use in experiments.Nevertheless,our suggested research approach and the goal alignment experiment highlight the importance of testing interventions and their effectiveness before implementation.
文摘The paper is a part of an ongoing study, labelled as ＂Designing out wicked problems＂ - a design science research （DSR） study with the purpose of developing, implementing, and evaluating a methodology framework for designing multi-stakeholder business models. The objective of the current paper is to evaluate the business model design framework within a DSR framework. The research is conducted as three-year case study at three sites： The Danish police, with a key player in the Danish energy sector, and the municipality of the Danish capital, Copenhagen. The research method is action research, with a structure of planning-action-evaluation process conducted with the case owners - as well as design science methodology, where an artifact （the multi-stakeholder business model design concept） is created, evaluated and altered to improve its functionality. The finding of this study is that the maturity of the application domain - the type of problem the concept is trying to solve - as well as of the concept itself, is low. The conclusion is thus that the knowledge contribution of the study is of a unique invention character which will lay the foundation for further evaluation and research.
基金financed in part by the Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior-Brasil(CAPES)-Finance Code 001 and National Council for Scientific and Technological Development-CNPq.
文摘This article presents the scenario of programming use by architects and engineers,creating their own unique tools.The goal is to emulate and understand the phenomenon of Building Information Modeling(BIM)software customization by developing plug-ins that can explore the human-environment relationship.Demonstrate the process for building a plugin that seeks to equalize the theory of accessibility technical standards,visually impaired and architects.Use Design Science Research methodologies to guide the construction of artifacts for specific practical problems and the Collaborative Design/Co-design to understand and know the users’expertise.It is argued that the low quality of projects that include elements for the orientation of the visually impaired in Brazil is often related to an unstructured methodology in which important aspects such as the real needs of this group and the human-environment relationship are neglected.
基金Postgraduate Education and Teaching Reform Research Project of Liaoning Province in 2022(LNYJG2022131)Postgraduate Education and Teaching Reform Research Project of University of Science and Technology Liaoning in 2022(2022YJSCX07).
文摘Based on the background of the revitalization of Northeast China and industrial transformation,with the goal of serving society with design,leading the future with design,and revitalizing the economy with design,we adhere to the innovative,comprehensive and cultural design talent cultivation concept,fully practice the“student-centered,output-oriented,continuously-improving”educational philosophy taking quality as the first priority,and continuously improve the theoretical system and implementation path for cultivation of postgraduate talents in design science,hoping to optimize the entire process of talent cultivation.Meanwhile,on the basis of“fostering character and civic virtue,cultivating people in a three-all manner,and cultivating people from five aspects simultaneously”,we cultivate high-quality design talents with brand-new models and ideas,through a series of educational reform measures,such as strategic cooperation,resource integration,systematic sorting,quality improvement,standard formulation,strengthening characteristics,platform construction,so that the quality of talents and social development can be perfectly integrated and mutually assist each other to achieve a win-win effect,and the training of design talents can be implemented and serve the society.
文摘This paper reports the developed mobile application through the use of advanced technologies such as mobile computing, cloud computing and Global Positioning System (GPS) in order to solve the challenges. The purpose of this study is to find out how the recent advances and mass adoption of ICT by the public can best be leveraged to enhance the performance of Civil Society Organizations (CSOs) in East Africa. The data collection techniques used are through questionnaires, observations and conducting interviews with different stakeholders in the civil society arena i.e., the donors, the CSOs and the people in society that are given a voice by civil societies. In the system development phase, agile development methodology was used. Analysis of the data collected showed that there is a gap in the availability of a single or a centralized platform which can be easily accessed, user-friendly and reliable where different actors can readily get reliable and up-to-date information about the available CSOs they are interested in. To address this problem, an interactive online directory of CSOs has been developed. The platform is mobile based and enables CSOs to register and fill up their current details, thus ensuring that there is always correct and updated information. The platform is equipped with, among other features, a geo-mapping facility which enables users of the system to correctly geo-locate their civil societies of interest on a map view. The results of system evaluation showed that 88.125% of users were satisfied with the system basing on the evaluation criteria.
文摘Solar cells made from perovskites have experienced rapid development as examples of third-generation solar cells in recent years. The traditional trial-and-error method is inefficient, and the search space is incredibly large. This makes developing advanced perovskite materials, as well as high conversion efficiencies and stability of perovskite solar cells (PSCs), a challenging task. A growing number of data-driven machine learning (ML) applications are being developed in the materials science field, due to the availability of large databases and increased computing power. There are many advantages associated with the use of machine learning to predict the properties of potential perovskite materials, as well as provide additional knowledge on how these materials work to fast-track their progress. Thus, the purpose of this paper is to develop a conceptual model to improve the efficiency of a perovskite solar cell using machine learning techniques in order to improve its performance. This study relies on the application of design science as a method to conduct the research as part of the study. The developed model consists of six phases: Data collection and preprocessing, feature selection and engineering, model training and evaluation, performance assessment, optimization and fine-tuning, and deployment and application. As a result of this model, there is a great deal of promise in advancing the field of perovskite solar cells as well as providing a basis for developing more efficient and cost-effective solar energy technologies in the future.
文摘In recent years, there has been a revolution in the way that we transmit information through optical communication systems, allowing for fast and high-capacity data transmission using optical communication systems. Due to the growing demand for higher-capacity and faster networks, traditional optical communication systems are reaching their limits due to the increasing demand for faster and higher-capacity networks. The advent of machine learning and deep learning approaches has led to the emergence of powerful tools that can dramatically enhance the performance of optical communication systems with significant efficiency improvements. In this paper, we provide an overview of the role that machine learning (ML) and deep learning can play in enhancing the performance of various aspects of optical communication systems, including modulation techniques, channel modelling, equalization, and system optimization methods. The paper discusses the advantages of these approaches, such as improved spectral efficiency, reduced latency, and improved robustness to impairments in the channel, such as spectrum degradation. Additionally, a discussion is made regarding the potential challenges and limitations associated with using machine learning and deep learning in optical communication systems as well as their potential benefits. The purpose of this paper is to provide insight and highlight the potential of these approaches to improve optical communication in the future.
文摘Saudi Arabian banks are deeply concerned about how to effectively monitor and control security threats. In recent years, the country has taken several steps towards restructuring its organizational security and, consequently, protecting financial institutions and their clients. However, there are still several challenges left to be addressed. Accordingly, this article aims to address this problem by proposing an abstract framework based on the National Institute of Standards and Technology (NIST) Cybersecurity Framework and International Organization for Standardization/International Electrotechnical Commission (ISO/IEC 27001). The framework proposed in this paper considers the following factors involved in the security policy of Saudi banks: safety, Saudi information bank, operations and security of Saudi banks, Saudi banks’ supplier relationships, risk assessment, risk mitigation, monitoring and detection, incident response, Saudi banks’ business continuity, compliance, education, and awareness about all factors contributing to the framework implementation. This way, the proposed framework provides a comprehensive, unified approach to managing bank security threats. Not only does the proposed framework provide effective guidance on how to identify, assess, and mitigate security threats, but it also instructs how to develop policy and procedure documents relating to security issues.
文摘Security risk assessment refers to the process of identifying, analyzing, and evaluating potential security risks for an organization. An organization’s assets, personnel, and operations are protected through it as part of a comprehensive security program. Various security assessments models have been published in the literature to protect the Saudi organization’s assets, personnel, and operations. However, these models are redundant and were developed for specific purposes. Hence, the comprehensive security risk assessment model used to safeguard Saudi organizations’ assets, personnel, and operations is still omitted. Using a design science methodology, the objective of this study is to develop a comprehensive security risk assessment model called CSRAM to assess security risks in Saudi Arabian organizations based on the International Organization for Standardization and the International Electrotechnical Commission/Information security risk management (ISO/IEC 27005 ISRM) standard. CSRAM is made up of six stages: threat identification, vulnerability assessment, risk analysis, risk evaluation, risk treatment, and monitoring and review of the risk. The stages have many activities and tasks that need to be accomplished at each stage. Based on the results of the validation of the completeness of the CSRAM, we can say that the CSRAM covers the whole ISO/IEC 27005 ISRM standard, and it is complete.
基金supported by the National Natural Science Foundation of China (62272078)。
文摘With the ongoing advancements in sensor networks and data acquisition technologies across various systems like manufacturing,aviation,and healthcare,the data driven vibration control(DDVC)has attracted broad interests from both the industrial and academic communities.Input shaping(IS),as a simple and effective feedforward method,is greatly demanded in DDVC methods.It convolves the desired input command with impulse sequence without requiring parametric dynamics and the closed-loop system structure,thereby suppressing the residual vibration separately.Based on a thorough investigation into the state-of-the-art DDVC methods,this survey has made the following efforts:1)Introducing the IS theory and typical input shapers;2)Categorizing recent progress of DDVC methods;3)Summarizing commonly adopted metrics for DDVC;and 4)Discussing the engineering applications and future trends of DDVC.By doing so,this study provides a systematic and comprehensive overview of existing DDVC methods from designing to optimizing perspectives,aiming at promoting future research regarding this emerging and vital issue.
文摘Data Science(DS)as defined by Jim Gray is an emerging paradigm in all research areas to help finding non-obvious patterns of relevance in large distributed data collections.“Open Science by Design”(OSD),i.e.,making artefacts such as data,metadata,models,and algorithms available and re-usable to peers and beyond as early as possible,is a pre-requisite for a flourishing DS landscape.However,a few major aspects can be identified hampering a fast transition:(1)The classical“Open Science by Publication”(OSP)is not sufficient any longer since it serves different functions,leads to non-acceptable delays and is associated with high curation costs.Changing data lab practices towards OSD requires more fundamental changes than OSP.(2)The classical publication-oriented models for metrics,mainly informed by citations,will not work anymore since the roles of contributors are more difficult to assess and will often change,i.e.,other ways for assigning incentives and recognition need to be found.(3)The huge investments in developing DS skills and capacities by some global companies and strong countries is leading to imbalances and fears by different stakeholders hampering the acceptance of Open Science(OS).(4)Finally,OSD will depend on the availability of a global infrastructure fostering an integrated and interoperable data domain-“one data-domain”as George Strawn calls it-which is still not visible due to differences about the technological key pillars.OS therefore is a need for DS,but it will take much more time to implement it than we may have expected.
文摘While blockchain technology is commonly considered potentially disruptive in various regards,there is a lack of understanding where and how blockchain technology is effectively applicable and where it has remarkable practical effects~([1]).Against this background,we present and discuss a case study at length on the impact of this technology in the concrete setting of small short-term loans in retail banking.We propose to banks a robust and scalable blockchain technology with proof of stake and limited energy consumption used to streamline their processes,resulting in lower transaction and administration costs.This is made possible by smart contracts.Thereby,we facilitate small scale lending at high frequencies and short-term duration as well as an easier and more efficient way to connect small borrowers and lenders.
文摘Due to urban expansion,agriculture,and the long history of the cadastre in Finland,the cadastral index map has millions of border markers that have low spatial accuracy,incomplete feature properties or both.The low quality of the border markers creates issues,such as forest cutting machines cutting from the wrong side of the border.As it is unfeasible for the national mapping agency to remeasure all these border markers,crowdsourcing is seen as a solution.However,the task of locating and measuring border markers requires motivated citizens.Therefore,in this study,a gamified map-based artefact enabling citizens to refine the quality of border markers in the cadastral index map was created.The artefact was designed,developed,demonstrated,and evaluated following the design science research approach.This study demonstrated with high sample size that gamified crowdsourcing is viable for motivating citizens to perform even challenging tasks.Of the applied gamification affordances,progression,points,and leaderboard were the most motivating.It was also found that involving stakeholders early in the creation process and focusing on usability of the artefact resulted in a pleasing user experience for the citizens.The artefact even spun a self-organised mapping party during its demonstration.
