Pub Date : 2009-12-28DOI: 10.1504/IJIDSS.2009.030584
Kate Gill
The problem faced by most systems organisations is how to develop and sustain staff with the appropriate systems skills and experience. To date, much has been made of the delineation of systems thinking and systems engineering. In this research, the partitioning of 'thinking' and 'engineering' has been explored using Discourse Analysis (DA) of interviews with a small systems team working within the Defence Science and Technology Laboratory (Dstl). The research explores the perceptions of staff that are working and delivering in systems roles, and was undertaken to support systems capability development within Dstl and to answer the question "what do we need to do know, to set the scene for the future?".
{"title":"Systems thinking or systems engineering","authors":"Kate Gill","doi":"10.1504/IJIDSS.2009.030584","DOIUrl":"https://doi.org/10.1504/IJIDSS.2009.030584","url":null,"abstract":"The problem faced by most systems organisations is how to develop and sustain staff with the appropriate systems skills and experience. To date, much has been made of the delineation of systems thinking and systems engineering. In this research, the partitioning of 'thinking' and 'engineering' has been explored using Discourse Analysis (DA) of interviews with a small systems team working within the Defence Science and Technology Laboratory (Dstl). The research explores the perceptions of staff that are working and delivering in systems roles, and was undertaken to support systems capability development within Dstl and to answer the question \"what do we need to do know, to set the scene for the future?\".","PeriodicalId":311979,"journal":{"name":"Int. J. Intell. Def. Support Syst.","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125215712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-09-22DOI: 10.1504/IJIDSS.2009.028646
Jun Feng, Chunyan Lu, Shimin Xu, Toyohide Watanabe
Recently, many spatio-temporal applications pay attention to the summarised information of moving objects in road networks (e.g., the number of vehicles, the average speed). Existing sketch method can solve the distinct counting problem, but without provable guarantees on the approximate quality of aggregate queries over moving objects in road networks in all situations. This paper proposes a dynamic sketch method (DynSketch index) by using existing histogram technique to intelligently partition the sketch method, and to improve the quality of the approximation. Evaluation shows this new method outperforms the sketch method in space consumption, queries efficiency, approximate errors control, and does well in small region queries especially.
{"title":"DynSketch: a spatio-temporal aggregate index for moving objects in road networks","authors":"Jun Feng, Chunyan Lu, Shimin Xu, Toyohide Watanabe","doi":"10.1504/IJIDSS.2009.028646","DOIUrl":"https://doi.org/10.1504/IJIDSS.2009.028646","url":null,"abstract":"Recently, many spatio-temporal applications pay attention to the summarised information of moving objects in road networks (e.g., the number of vehicles, the average speed). Existing sketch method can solve the distinct counting problem, but without provable guarantees on the approximate quality of aggregate queries over moving objects in road networks in all situations. This paper proposes a dynamic sketch method (DynSketch index) by using existing histogram technique to intelligently partition the sketch method, and to improve the quality of the approximation. Evaluation shows this new method outperforms the sketch method in space consumption, queries efficiency, approximate errors control, and does well in small region queries especially.","PeriodicalId":311979,"journal":{"name":"Int. J. Intell. Def. Support Syst.","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122569843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-09-22DOI: 10.1504/IJIDSS.2009.028644
J. Morio, F. Muller
This paper presents a method for estimating orbital parameters of spatial objects detected with a ground based radar dedicated to space surveillance. The radar objective are twofold: detection; classification of the detected objects. We firstly describe how the orbit determination is performed using radar acquisitions (right ascension, declination, range and Doppler). We then present the procedure of differentiation between different spatial objects (satellites, ballistic weapons...) on real time applications. An analysis of the influence of noise and of the samples number in the accuracy of this procedure is also presented.
{"title":"Radar measurements analysis for spatial object classification","authors":"J. Morio, F. Muller","doi":"10.1504/IJIDSS.2009.028644","DOIUrl":"https://doi.org/10.1504/IJIDSS.2009.028644","url":null,"abstract":"This paper presents a method for estimating orbital parameters of spatial objects detected with a ground based radar dedicated to space surveillance. The radar objective are twofold: detection; classification of the detected objects. We firstly describe how the orbit determination is performed using radar acquisitions (right ascension, declination, range and Doppler). We then present the procedure of differentiation between different spatial objects (satellites, ballistic weapons...) on real time applications. An analysis of the influence of noise and of the samples number in the accuracy of this procedure is also presented.","PeriodicalId":311979,"journal":{"name":"Int. J. Intell. Def. Support Syst.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115810637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-09-22DOI: 10.1504/IJIDSS.2009.028643
Patrick T. Hester, A. Tolk
This paper documents an innovative method for analysing multiple sequential interactions between two forces engaged in battle, to assist military strategists in deploying forces appropriately. It builds on previous combat models for the calculation of probabilistic distributions of battle results and permits analysis of repeated opposing force interactions. The goal is to provide military decision-makers with a more applicable method, enabling better decision-support tools to aid in military planning and operations. The paper makes several recommendations for suggested strategies in sequential battles based on the results of example problems.
{"title":"Using Lanchester equations for sequential battle prediction enabling better military decision support","authors":"Patrick T. Hester, A. Tolk","doi":"10.1504/IJIDSS.2009.028643","DOIUrl":"https://doi.org/10.1504/IJIDSS.2009.028643","url":null,"abstract":"This paper documents an innovative method for analysing multiple sequential interactions between two forces engaged in battle, to assist military strategists in deploying forces appropriately. It builds on previous combat models for the calculation of probabilistic distributions of battle results and permits analysis of repeated opposing force interactions. The goal is to provide military decision-makers with a more applicable method, enabling better decision-support tools to aid in military planning and operations. The paper makes several recommendations for suggested strategies in sequential battles based on the results of example problems.","PeriodicalId":311979,"journal":{"name":"Int. J. Intell. Def. Support Syst.","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116536299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-09-22DOI: 10.1504/IJIDSS.2009.028645
Georg Peters, R. Weber
Many real life applications are characterised by changing data structures. For example, the buying patterns of retail customers may change due to changing economical parameters (increasing oil prices motivate to buy smaller cars) or a technological break-through (replacement of analogue by digital cameras). In such dynamic environments the parameters obtained in data mining projects need to be updated to adequately describe the actual real life situation. Dynamic data mining addresses such situations. It has been applied successfully in many projects, like in traffic data analysis. In our paper, we apply the concepts of dynamic data mining to rough k-means.
{"title":"Intelligent cluster algorithms for changing data structures","authors":"Georg Peters, R. Weber","doi":"10.1504/IJIDSS.2009.028645","DOIUrl":"https://doi.org/10.1504/IJIDSS.2009.028645","url":null,"abstract":"Many real life applications are characterised by changing data structures. For example, the buying patterns of retail customers may change due to changing economical parameters (increasing oil prices motivate to buy smaller cars) or a technological break-through (replacement of analogue by digital cameras). In such dynamic environments the parameters obtained in data mining projects need to be updated to adequately describe the actual real life situation. Dynamic data mining addresses such situations. It has been applied successfully in many projects, like in traffic data analysis. In our paper, we apply the concepts of dynamic data mining to rough k-means.","PeriodicalId":311979,"journal":{"name":"Int. J. Intell. Def. Support Syst.","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125751700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-08-03DOI: 10.1504/IJIDSS.2009.027548
Anne Håkansson
The paper presents a User-Centred Knowledge (t-UCK) model for consulting and disseminating knowledge by modelling knowledge, reasoning strategies and other functionality in systems, like knowledge-management systems. The quality of system's contents is of decisive importance for making good decisions. Models are needed to assure that required knowledge is present without introducing validation or verification problems. Current models tend to be large, presenting problems with knowledge comprehension. Moreover, some models are difficult to employ and apply correctly without expertise. To minimise these problems, t-UCK supports different users to identify, create, model, implement and test knowledge directly into systems through UML diagrams.
{"title":"T-UCK: The User-Centred Knowledge Model","authors":"Anne Håkansson","doi":"10.1504/IJIDSS.2009.027548","DOIUrl":"https://doi.org/10.1504/IJIDSS.2009.027548","url":null,"abstract":"The paper presents a User-Centred Knowledge (t-UCK) model for consulting and disseminating knowledge by modelling knowledge, reasoning strategies and other functionality in systems, like knowledge-management systems. The quality of system's contents is of decisive importance for making good decisions. Models are needed to assure that required knowledge is present without introducing validation or verification problems. Current models tend to be large, presenting problems with knowledge comprehension. Moreover, some models are difficult to employ and apply correctly without expertise. To minimise these problems, t-UCK supports different users to identify, create, model, implement and test knowledge directly into systems through UML diagrams.","PeriodicalId":311979,"journal":{"name":"Int. J. Intell. Def. Support Syst.","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115705744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-08-03DOI: 10.1504/IJIDSS.2009.027551
E. Moradian
Businesses interchange information internally and manage electronic transactions with trading partners over internet. The success factor is integration of e-business processes with the existing internal infrastructure and applications, as well as with business partner's systems. It is essential to provide correct and relevant information to the right receiver. In this paper, we present an approach of transmission and processing of information in the organisations systems by intelligent agents to improve information flow, provide availability and protect confidential information from being disclosed, modified and lost. To monitor and control information flow in e-business processes, we propose using Multi-Agent Systems (MASs).
{"title":"Secure transmission and processing of information in organisations systems","authors":"E. Moradian","doi":"10.1504/IJIDSS.2009.027551","DOIUrl":"https://doi.org/10.1504/IJIDSS.2009.027551","url":null,"abstract":"Businesses interchange information internally and manage electronic transactions with trading partners over internet. The success factor is integration of e-business processes with the existing internal infrastructure and applications, as well as with business partner's systems. It is essential to provide correct and relevant information to the right receiver. In this paper, we present an approach of transmission and processing of information in the organisations systems by intelligent agents to improve information flow, provide availability and protect confidential information from being disclosed, modified and lost. To monitor and control information flow in e-business processes, we propose using Multi-Agent Systems (MASs).","PeriodicalId":311979,"journal":{"name":"Int. J. Intell. Def. Support Syst.","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121888223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We propose a three-layered structure model for handling broadly spreading geographic events successfully in the distributed environment. In our model, event data and geographic objects are represented independently in the 1st layer, and they are associated dynamically according to a query in the 2nd layer by using regular expression for attribute changes and spatio-temporal relation. In the 3rd layer, data propagated from the 2nd layer are aggregated to be used in application systems. Based on this framework, event data and geographic objects could be represented independently, and event data computed in the 2nd layer would be shared and re-used.
{"title":"Three-layered structure for sharing event information in distributed environment","authors":"Masakazu Ikezaki, Toyohide Watanabe, Taketoshi Ushiama","doi":"10.1504/IJIDSS.2009.027550","DOIUrl":"https://doi.org/10.1504/IJIDSS.2009.027550","url":null,"abstract":"We propose a three-layered structure model for handling broadly spreading geographic events successfully in the distributed environment. In our model, event data and geographic objects are represented independently in the 1st layer, and they are associated dynamically according to a query in the 2nd layer by using regular expression for attribute changes and spatio-temporal relation. In the 3rd layer, data propagated from the 2nd layer are aggregated to be used in application systems. Based on this framework, event data and geographic objects could be represented independently, and event data computed in the 2nd layer would be shared and re-used.","PeriodicalId":311979,"journal":{"name":"Int. J. Intell. Def. Support Syst.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129768693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-08-03DOI: 10.1504/IJIDSS.2009.027549
S. Babenyshev, V. Rybakov
In most popular logics from the field of Artificial Intelligence (AI), knowledge is usually combined with other logical operations (e.g., awareness). We present a Logic of Plausibility for Discovery (LPD) combining agents' knowledge operations, linear time, operations for discovering information and plausibility operation. LPD is introduced via semantic models based on special Kripke frames. The main problem we focus on is finding an algorithm for recognising satisfiable in LPD formulas. We propose such an algorithm (so we show that LPD is decidable w.r.t. satisfiability). The paper is concluded with a short discussion on the essence and features of this algorithm.
{"title":"Logic of Plausibility for Discovery in multi-agent environment. Decision algorithms","authors":"S. Babenyshev, V. Rybakov","doi":"10.1504/IJIDSS.2009.027549","DOIUrl":"https://doi.org/10.1504/IJIDSS.2009.027549","url":null,"abstract":"In most popular logics from the field of Artificial Intelligence (AI), knowledge is usually combined with other logical operations (e.g., awareness). We present a Logic of Plausibility for Discovery (LPD) combining agents' knowledge operations, linear time, operations for discovering information and plausibility operation. LPD is introduced via semantic models based on special Kripke frames. The main problem we focus on is finding an algorithm for recognising satisfiable in LPD formulas. We propose such an algorithm (so we show that LPD is decidable w.r.t. satisfiability). The paper is concluded with a short discussion on the essence and features of this algorithm.","PeriodicalId":311979,"journal":{"name":"Int. J. Intell. Def. Support Syst.","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127190828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-06-01DOI: 10.1504/IJIDSS.2010.033680
T. Petković, Z. Kostanjčar, A. Sovic
With the online resources becoming common, one can ask what the limitations are when applied to online examinations. Standardised multiple-choice questions (MCQs) test are commonly used either as a tool to enable student self-examination or as a tool to test large number of students in a more efficient way. However, the means of delivery and what one intends the tests to measure should be carefully considered. During last two years in teaching, the course 'Signals and Systems', both online and written, proctored and non-proctored, MCQs test were used in production environment (in vivo). Obtained data suggest that test delivery method strongly influences test accuracy when measuring the knowledge students gained. Online non proctored delivery, although being the simplest, yields strongly biased results and is suitable only as a tool to enable student self-assessment of the gained knowledge, while the online or written (non-strictly) proctored tests are still the method of choice if one wants to objectively measure the knowledge gained by students.
{"title":"Online vs. written multiple-choice questions tests: accuracy and usefulness","authors":"T. Petković, Z. Kostanjčar, A. Sovic","doi":"10.1504/IJIDSS.2010.033680","DOIUrl":"https://doi.org/10.1504/IJIDSS.2010.033680","url":null,"abstract":"With the online resources becoming common, one can ask what the limitations are when applied to online examinations. Standardised multiple-choice questions (MCQs) test are commonly used either as a tool to enable student self-examination or as a tool to test large number of students in a more efficient way. However, the means of delivery and what one intends the tests to measure should be carefully considered. During last two years in teaching, the course 'Signals and Systems', both online and written, proctored and non-proctored, MCQs test were used in production environment (in vivo). Obtained data suggest that test delivery method strongly influences test accuracy when measuring the knowledge students gained. Online non proctored delivery, although being the simplest, yields strongly biased results and is suitable only as a tool to enable student self-assessment of the gained knowledge, while the online or written (non-strictly) proctored tests are still the method of choice if one wants to objectively measure the knowledge gained by students.","PeriodicalId":311979,"journal":{"name":"Int. J. Intell. Def. Support Syst.","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125056268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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