The Experts below are selected from a list of 150 Experts worldwide ranked by ideXlab platform
M Kowalski - One of the best experts on this subject based on the ideXlab platform.
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transient processing and analysis using ampel Alert Management photometry and evaluation of light curves
Astronomy and Astrophysics, 2019Co-Authors: J Nordin, V Brinnel, J Van Santen, Mattia Bulla, U Feindt, Anna Franckowiak, C Fremling, A Galyam, M Giomi, M KowalskiAbstract:Context. Both multi-messenger astronomy and new high-throughput wide-field surveys require flexible tools for the selection and analysis of astrophysical transients.Aims. Here we introduce the Alert Management, photometry, and evaluation of light curves (AMPEL) system, an analysis framework designed for high-throughput surveys and suited for streamed data. AMPEL combines the functionality of an Alert broker with a generic framework capable of hosting user-contributed code; it encourages provenance and keeps track of the varying information states that a transient displays. The latter concept includes information gathered over time and data policies such as access or calibration levels.Methods. We describe a novel ongoing real-time multi-messenger analysis using AMPEL to combine IceCube neutrino data with the Alert streams of the Zwicky Transient Facility (ZTF). We also reprocess the first four months of ZTF public Alerts, and compare the yields of more than 200 different transient selection functions to quantify efficiencies for selecting Type Ia supernovae that were reported to the Transient Name Server (TNS).Results. We highlight three channels suitable for (1) the collection of a complete sample of extragalactic transients, (2) immediate follow-up of nearby transients, and (3) follow-up campaigns targeting young, extragalactic transients. We confirm ZTF completeness in that all TNS supernovae positioned on active CCD regions were detected.Conclusions. AMPEL can assist in filtering transients in real time, running Alert reaction simulations, the reprocessing of full datasets as well as in the final scientific analysis of transient data. This is made possible by a novel way of capturing transient information through sequences of evolving states, and interfaces that allow new code to be natively applied to a full stream of Alerts. This text also introduces a method by which users can design their own channels for inclusion in the AMPEL live instance that parses the ZTF stream and the real-time submission of high-quality extragalactic supernova candidates to the TNS.Key words: methods: data analysis / astronomical databases: miscellaneous / virtual observatory tools / supernovae: general / cosmology: observations⋆ Table A.1 is only available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/631/A147
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transient processing and analysis using texttt ampel Alert Management photometry and evaluation of lightcurves
arXiv: Instrumentation and Methods for Astrophysics, 2019Co-Authors: J Nordin, V Brinnel, J Van Santen, Mattia Bulla, U Feindt, Anna Franckowiak, C Fremling, A Galyam, M Giomi, M KowalskiAbstract:Both multi-messenger astronomy and new high-throughput wide-field surveys require flexible tools for the selection and analysis of astrophysical transients. We here introduce the Alert Management, Photometry and Evaluation of Lightcurves (AMPEL) system, an analysis framework designed for high-throughput surveys and suited for streamed data. AMPEL combines the functionality of an Alert broker with a generic framework capable of hosting user-contributed code, that encourages provenance and keeps track of the varying information states that a transient displays. The latter concept includes information gathered over time and data policies such as access or calibration levels. We describe a novel ongoing real-time multi-messenger analysis using AMPEL to combine IceCube neutrino data with the Alert streams of the Zwicky Transient Facility (ZTF). We also reprocess the first four months of ZTF public Alerts, and compare the yields of more than 200 different transient selection functions to quantify efficiencies for selecting Type Ia supernovae that were reported to the Transient Name Server (TNS). We highlight three channels suitable for (1) the collection of a complete sample of extragalactic transients, (2) immediate follow-up of nearby transients and (3) follow-up campaigns targeting young, extragalactic transients. We confirm ZTF completeness in that all TNS supernovae positioned on active CCD regions were detected. AMPEL can assist in filtering transients in real time, running Alert reaction simulations, the reprocessing of full datasets as well as in the final scientific analysis of transient data. This text introduces how users can design their own channels for inclusion in the AMPEL live instance that parses the ZTF stream and the real-time submission of high quality extragalactic supernova candidates to the TNS.
Dickson K.w. Chiu - One of the best experts on this subject based on the ideXlab platform.
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Alert driven communications Management for children music learning based on suzuki method
International Journal of Systems and Service-oriented Engineering, 2015Co-Authors: Cheukting Chan, Kiko Tsz Lan Cheng, Dickson K.w. ChiuAbstract:It is widely believed that parents' involvement in students' music learning is vital to their success. Shinichi Suzuki not only provided teachers with useful and logical teaching skills, but also stressed on the importance of the parents as a "home teacher". To enhance the interactions among parents, students, and teachers as well as encourage parental participation, this paper proposes a Web 2.0 learning platform WASSAP with an Alert Management System AMS as a solution to tackle problems of busy parents who do not have adequate time to involve in students' music learning. The system can facilitate busy parents to pay more attention to students' learning progress, with the AMS managing the underlining communication among various parties involved.
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security Alert Management system for internet data center based on iso iec 27001 ontology
International Conference on e-Business Engineering, 2010Co-Authors: Terry M F Tsang, Dickson K.w. Chiu, Thomas M W Yeung, Haiyang Hu, Yi Zhuang, Hua HuAbstract:Internet Data Centers (IDC) emerge as a major network service platform to converge Internet related services and applications to one location, managing servers, networks, together with valuable and sensitive data of many enterprises. Therefore, an appropriate security approach is essential. Intrusion Detection Systems (IDS) are often deployed in IDC as a security measure to detect real-time intrusions and Alert system administrators to take proper handling actions. However, a large number of low-level Alerts lacking of classification make their Management difficult. To tackle this problem, we propose a Security Alert Management System (SAMS) in which Alerts generated by each IDS undergo Alert aggregation. By incorporating ISO/IEC 27001 requirements into the ontology, our system classifies and aggregates Alerts from multiple sources, providing a consolidated view of security incidents which are compliant with the ISO/IEC 27001 standard. We further facilitate effective handling of security Alerts with different urgency classifications via an Alert Management System (AMS).
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Alerts in healthcare applications process and data integration
International Journal of Healthcare Information Systems and Informatics, 2009Co-Authors: Dickson K.w. Chiu, Eleanna Kafeza, B W C Kwok, S C Cheung, Raymond Wong, Marina Kafeza, Patrick C K HungAbstract:Urgent requests and critical messages in healthcare applications must be delivered and handled timely instead of in an ad-hoc manner for most current systems. Therefore, we extend a sophisticated Alert Management system (AMS) to handle process and data integration in healthcare chain workflow Management under urgency constraints. Alerts are associated with healthcare tasks to capture the parameters for their routing and urgency requirements in order to match them with the specialties of healthcare personnel or the functionalities of Web Services providers. Monitoring is essential to ensure the timeliness and availability of services as well as to ensure the identification of exceptions. We outline our implementation framework with Web Services for the communications among healthcare service providers together with mobile devices for medical professionals. We demonstrate the applicability of our approach with a prototype medical house-call system (MHCS) and evaluate our approach with medical professionals and various stakeholders.
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towards ubiquitous communication support for distance education with Alert Management
Educational Technology & Society, 2008Co-Authors: Dickson K.w. Chiu, Samuel P M Choi, M Wang, Eleanna KafezaAbstract:In distance education, communications among students, educators, and administrators have been one of the most important problems. The distance education programs in The Open University of Hong Kong (OUHK) span not only Hong Kong but also many cities over a large area in China. To improve and monitor the quality of communications among students, tutors, and staff, we propose a communications Management infrastructure based on an Alert mechanism. Requests and messages in these systems (referred to as Alerts) have to be delivered and handled timely to provide ubiquitous distance education communication support and Management. We also propose using this platform for the integration of partners in China with the OUHK offices. Presently, most systems cannot address urgency and Alerts are often handled in an ad-hoc manner. In this paper, we propose a sophisticated Alert Management system (AMS) for ubiquitous communications Management in distance education under various requirements. We develop a model for managing Alerts, in which Alerts are associated with communication tasks and a set of parameters are captured for message routing and urgency Management. The AMS matches the specialties of the educators and staff who receive an Alert, based on the Alert specification. We then propose a routing mechanism that is initiated when the Alert message is not acknowledged or handled within the deadline, so that the Alert can be re-routed if necessary. Monitoring is especially essential to ensure timeliness and availability of consultation or decision, otherwise suitable exceptions should be raised and handled. We outline our implementation framework for communications among education administrators, education staff, students, and system administrators, enhanced by alter Management via various communication devices for ubiquitous support of communication in distance education.
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An Alert Management System for Concrete Batching Plant
2007 IEEE Conference on Emerging Technologies and Factory Automation (EFTA 2007), 2007Co-Authors: Jason C.s. Chung, Dickson K.w. Chiu, Eleanna KafezaAbstract:Efficient and effective Management is a key to business success. In particular, process Management technologies can help smoothen and enhance the production. In this paper, we propose a sophisticated Alert Management system (AMS) for workflow Management in particular for concrete batching plant. For concrete batching plant, there are challenges in monitoring schedules and handling their changes. An AMS can help monitor the whole production process and keep track of any exceptions by sending Alerts and receiving responses in order to assist in resources planning and production scheduling of relevant stakeholders. We develop a model for specifying Alerts and outlining the mechanism of the AMS. The applicability of the AMS for workflow integration, data integration, and exception handling is also examined by studying the stakeholders ' requirements.
Eleanna Kafeza - One of the best experts on this subject based on the ideXlab platform.
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Alerts in healthcare applications process and data integration
International Journal of Healthcare Information Systems and Informatics, 2009Co-Authors: Dickson K.w. Chiu, Eleanna Kafeza, B W C Kwok, S C Cheung, Raymond Wong, Marina Kafeza, Patrick C K HungAbstract:Urgent requests and critical messages in healthcare applications must be delivered and handled timely instead of in an ad-hoc manner for most current systems. Therefore, we extend a sophisticated Alert Management system (AMS) to handle process and data integration in healthcare chain workflow Management under urgency constraints. Alerts are associated with healthcare tasks to capture the parameters for their routing and urgency requirements in order to match them with the specialties of healthcare personnel or the functionalities of Web Services providers. Monitoring is essential to ensure the timeliness and availability of services as well as to ensure the identification of exceptions. We outline our implementation framework with Web Services for the communications among healthcare service providers together with mobile devices for medical professionals. We demonstrate the applicability of our approach with a prototype medical house-call system (MHCS) and evaluate our approach with medical professionals and various stakeholders.
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towards ubiquitous communication support for distance education with Alert Management
Educational Technology & Society, 2008Co-Authors: Dickson K.w. Chiu, Samuel P M Choi, M Wang, Eleanna KafezaAbstract:In distance education, communications among students, educators, and administrators have been one of the most important problems. The distance education programs in The Open University of Hong Kong (OUHK) span not only Hong Kong but also many cities over a large area in China. To improve and monitor the quality of communications among students, tutors, and staff, we propose a communications Management infrastructure based on an Alert mechanism. Requests and messages in these systems (referred to as Alerts) have to be delivered and handled timely to provide ubiquitous distance education communication support and Management. We also propose using this platform for the integration of partners in China with the OUHK offices. Presently, most systems cannot address urgency and Alerts are often handled in an ad-hoc manner. In this paper, we propose a sophisticated Alert Management system (AMS) for ubiquitous communications Management in distance education under various requirements. We develop a model for managing Alerts, in which Alerts are associated with communication tasks and a set of parameters are captured for message routing and urgency Management. The AMS matches the specialties of the educators and staff who receive an Alert, based on the Alert specification. We then propose a routing mechanism that is initiated when the Alert message is not acknowledged or handled within the deadline, so that the Alert can be re-routed if necessary. Monitoring is especially essential to ensure timeliness and availability of consultation or decision, otherwise suitable exceptions should be raised and handled. We outline our implementation framework for communications among education administrators, education staff, students, and system administrators, enhanced by alter Management via various communication devices for ubiquitous support of communication in distance education.
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An Alert Management System for Concrete Batching Plant
2007 IEEE Conference on Emerging Technologies and Factory Automation (EFTA 2007), 2007Co-Authors: Jason C.s. Chung, Dickson K.w. Chiu, Eleanna KafezaAbstract:Efficient and effective Management is a key to business success. In particular, process Management technologies can help smoothen and enhance the production. In this paper, we propose a sophisticated Alert Management system (AMS) for workflow Management in particular for concrete batching plant. For concrete batching plant, there are challenges in monitoring schedules and handling their changes. An AMS can help monitor the whole production process and keep track of any exceptions by sending Alerts and receiving responses in order to assist in resources planning and production scheduling of relevant stakeholders. We develop a model for specifying Alerts and outlining the mechanism of the AMS. The applicability of the AMS for workflow integration, data integration, and exception handling is also examined by studying the stakeholders ' requirements.
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Alert driven e service Management
Hawaii International Conference on System Sciences, 2004Co-Authors: Dickson K.w. Chiu, B W C Kwok, R L S Wong, S C Cheung, Eleanna KafezaAbstract:Process Management technology has recently been employed not only within businesses but also in provision of e-services over the Internet. Urgent requests and critical messages in these systems (referred to as Alerts) should be delivered and handled timely. In particular, humans are often involved in critical conditions. Presently, most e-service systems cannot address these requirements, and Alerts are often handled in an ad-hoc manner. In this paper, we propose a sophisticated Alert Management system for effective e-service integration under urgent constraints. We develop a model for specifying Alerts, in which Alerts are associated with service requests and a set of parameters are captured for their routing. The Alert monitor matches the service provider to receive an Alert, based on the Alert specification. We then propose a routing mechanism that is initiated when the Alert message is not acknowledged or serviced within the deadline, so that the Alert can be forwarded to other suitable services if necessary. Monitoring is especially essential to ensure timeliness and availability of services, otherwise suitable exceptions should be raised and handled. We outline our implementation framework of an Alert Management system (AMS) which includes Web services for B2B interactions, together with multiple-platform support for human users. We demonstrate our approach with an example medical house-call AMS.
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Alerts for healthcare process and data integration
Hawaii International Conference on System Sciences, 2004Co-Authors: Dickson K.w. Chiu, Eleanna Kafeza, B W C Kwok, R L S Wong, S C Cheung, Marina KafezaAbstract:In healthcare chain workflow Management, urgent requests and critical messages in these systems (referred to as Alerts) have to be delivered and handled timely. Presently, most systems cannot address urgency and Alerts are often handled in an ad-hoc manner. In this paper, we propose a sophisticated Alert Management system (AMS) for effective healthcare chain workflow Management under urgent constraints. We develop a model for specifying Alerts, in which Alerts are associated with healthcare tasks and a set of parameters are captured for their routing and urgency requirements. Further, Alerts also serve as a mechanism for both process and data integration. The AMS matches the specialties of healthcare personnel and functionalities of Web Services providers to receive an Alert, based on the Alert specification. We then propose a routing mechanism that is initiated when the Alert message is not acknowledged or serviced within the deadline, so that the Alert can be re-routed if necessary. Monitoring is especially essential to ensure timeliness and availability of services, otherwise suitable exceptions should be raised and handled. We outline our implementation framework with Web Services for communications among healthcare service providers and mobile devices for medical professionals. We demonstrate the applicability of our approach with a pilot prototype medical house-call system (MHCS) with evaluations of medical professionals.
J Nordin - One of the best experts on this subject based on the ideXlab platform.
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transient processing and analysis using ampel Alert Management photometry and evaluation of light curves
Astronomy and Astrophysics, 2019Co-Authors: J Nordin, V Brinnel, J Van Santen, Mattia Bulla, U Feindt, Anna Franckowiak, C Fremling, A Galyam, M Giomi, M KowalskiAbstract:Context. Both multi-messenger astronomy and new high-throughput wide-field surveys require flexible tools for the selection and analysis of astrophysical transients.Aims. Here we introduce the Alert Management, photometry, and evaluation of light curves (AMPEL) system, an analysis framework designed for high-throughput surveys and suited for streamed data. AMPEL combines the functionality of an Alert broker with a generic framework capable of hosting user-contributed code; it encourages provenance and keeps track of the varying information states that a transient displays. The latter concept includes information gathered over time and data policies such as access or calibration levels.Methods. We describe a novel ongoing real-time multi-messenger analysis using AMPEL to combine IceCube neutrino data with the Alert streams of the Zwicky Transient Facility (ZTF). We also reprocess the first four months of ZTF public Alerts, and compare the yields of more than 200 different transient selection functions to quantify efficiencies for selecting Type Ia supernovae that were reported to the Transient Name Server (TNS).Results. We highlight three channels suitable for (1) the collection of a complete sample of extragalactic transients, (2) immediate follow-up of nearby transients, and (3) follow-up campaigns targeting young, extragalactic transients. We confirm ZTF completeness in that all TNS supernovae positioned on active CCD regions were detected.Conclusions. AMPEL can assist in filtering transients in real time, running Alert reaction simulations, the reprocessing of full datasets as well as in the final scientific analysis of transient data. This is made possible by a novel way of capturing transient information through sequences of evolving states, and interfaces that allow new code to be natively applied to a full stream of Alerts. This text also introduces a method by which users can design their own channels for inclusion in the AMPEL live instance that parses the ZTF stream and the real-time submission of high-quality extragalactic supernova candidates to the TNS.Key words: methods: data analysis / astronomical databases: miscellaneous / virtual observatory tools / supernovae: general / cosmology: observations⋆ Table A.1 is only available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/631/A147
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transient processing and analysis using texttt ampel Alert Management photometry and evaluation of lightcurves
arXiv: Instrumentation and Methods for Astrophysics, 2019Co-Authors: J Nordin, V Brinnel, J Van Santen, Mattia Bulla, U Feindt, Anna Franckowiak, C Fremling, A Galyam, M Giomi, M KowalskiAbstract:Both multi-messenger astronomy and new high-throughput wide-field surveys require flexible tools for the selection and analysis of astrophysical transients. We here introduce the Alert Management, Photometry and Evaluation of Lightcurves (AMPEL) system, an analysis framework designed for high-throughput surveys and suited for streamed data. AMPEL combines the functionality of an Alert broker with a generic framework capable of hosting user-contributed code, that encourages provenance and keeps track of the varying information states that a transient displays. The latter concept includes information gathered over time and data policies such as access or calibration levels. We describe a novel ongoing real-time multi-messenger analysis using AMPEL to combine IceCube neutrino data with the Alert streams of the Zwicky Transient Facility (ZTF). We also reprocess the first four months of ZTF public Alerts, and compare the yields of more than 200 different transient selection functions to quantify efficiencies for selecting Type Ia supernovae that were reported to the Transient Name Server (TNS). We highlight three channels suitable for (1) the collection of a complete sample of extragalactic transients, (2) immediate follow-up of nearby transients and (3) follow-up campaigns targeting young, extragalactic transients. We confirm ZTF completeness in that all TNS supernovae positioned on active CCD regions were detected. AMPEL can assist in filtering transients in real time, running Alert reaction simulations, the reprocessing of full datasets as well as in the final scientific analysis of transient data. This text introduces how users can design their own channels for inclusion in the AMPEL live instance that parses the ZTF stream and the real-time submission of high quality extragalactic supernova candidates to the TNS.
James Jose - One of the best experts on this subject based on the ideXlab platform.
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medical Alert Management a real time adaptive decision support tool to reduce Alert fatigue
American Medical Informatics Association Annual Symposium, 2014Co-Authors: Eva K Lee, James JoseAbstract:With the adoption of electronic medical records (EMRs), drug safety Alerts are increasingly recognized as valuable tools for reducing adverse drug events and improving patient safety. However, even with proper tuning of the EMR Alert parameters, the volume of unfiltered Alerts can be overwhelming to users. In this paper, we design an adaptive decision support tool in which past cognitive overriding decisions of users are learned, adapted and used for filtering actions to be performed on current Alerts. The filters are designed and learned based on a moving time window, number of Alerts, overriding rates, and monthly overriding fluctuations. Using Alerts from two separate years to derive filters and test performance, predictive accuracy rates of 91.3%–100% are achieved. The moving time window works better than a static training approach. It allows continuous learning and capturing of the most recent decision characteristics and seasonal variations in drug usage. The decision support system facilitates filtering of non-essential Alerts and adaptively learns critical Alerts and highlights them prominently to catch providers’ attention. The tool can be plugged into an existing EMR system as an add-on, allowing real-time decision support to users without interfering with existing EMR functionalities. By automatically filtering the Alerts, the decision support tool mitigates Alert fatigue and allows users to focus resources on potentially vital Alerts, thus reducing the occurrence of adverse drug events.
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Improving Patient Safety through Medical Alert Management: An Automated Decision Tool to Reduce Alert Fatigue
AMIA ... Annual Symposium proceedings. AMIA Symposium, 2010Co-Authors: Amanda F. Mejia, Tal Senior, James JoseAbstract:Drug safety Alerts, a feature of electronic medical records (EMRs), are increasingly recognized as valuable tools for reducing adverse drug events and improving patient safety. However, there has also been increased understanding that Alert fatigue, a state in which users become overwhelmed and unresponsive to Alerts in general, is a threat to patient safety. In this paper, we seek to mitigate Alert fatigue by filtering superfluous Alerts. We design a method of predicting Alert overrides based on past Alert override rate, range in override rate, and sample size. Using a dataset from a large pediatric network, we retroactively test and validate our method. For the test implementation, Alerts are filtered with 91-96% accuracy, depending on the parameter values selected. By filtering these Alerts, we reduce Alert fatigue and allow users to refocus resources to potentially vital Alerts, reducing the occurrence of adverse drug events. *Corresponding author.