An L(2, l)-coloring of a graph G is an assignment of labels from {0,1,..., A} to the vertices of G such that vertices at distance two get different labels and adjacent vertices get labels that are at least two apart. The X-number X(G) of G is the minimum value A such that G admits an L(2,1)-coloring. It is well known that the problem of determining the X-number is NP-hard. The Fibonacci cube network was recently proposed as an alternative to the hypercube network. Three different evolutionary algorithms are presented to find optimal or near optimal L(2,1)-coloring of the Fibonacci cubes. The algorithms are compared with the Petford-Welsh probabilistic algorithm
{"title":"L(2,1)-coloring of the Fibonacci cubes","authors":"A. Taranenko, A. Vesel","doi":"10.1109/ITI.2004.242367","DOIUrl":"https://doi.org/10.1109/ITI.2004.242367","url":null,"abstract":"An L(2, l)-coloring of a graph G is an assignment of labels from {0,1,..., A} to the vertices of G such that vertices at distance two get different labels and adjacent vertices get labels that are at least two apart. The X-number X(G) of G is the minimum value A such that G admits an L(2,1)-coloring. It is well known that the problem of determining the X-number is NP-hard. The Fibonacci cube network was recently proposed as an alternative to the hypercube network. Three different evolutionary algorithms are presented to find optimal or near optimal L(2,1)-coloring of the Fibonacci cubes. The algorithms are compared with the Petford-Welsh probabilistic algorithm","PeriodicalId":320305,"journal":{"name":"26th International Conference on Information Technology Interfaces, 2004.","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133869006","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}
The aim of the paper is to present essential quantitative and statistics parameters determined in a dedicated microscope image processing application. The statistics offer the possibility to consider relevant measurements for assisted diagnosis. Representative quantitative parameters were used in a dedicated medical image processing application, Formdet, for DNAt AgNor, Stereology, Nucleus/Cytoplasm measurements. New facilities concerning the preprocessing, specific quantitative parameter measurements, archiving were considered for medical investigations
{"title":"Essential quantitative and statistics parameters in a dedicated assisted medical image processing application","authors":"M. Vaida","doi":"10.1109/ITI.2004.241695","DOIUrl":"https://doi.org/10.1109/ITI.2004.241695","url":null,"abstract":"The aim of the paper is to present essential quantitative and statistics parameters determined in a dedicated microscope image processing application. The statistics offer the possibility to consider relevant measurements for assisted diagnosis. Representative quantitative parameters were used in a dedicated medical image processing application, Formdet, for DNAt AgNor, Stereology, Nucleus/Cytoplasm measurements. New facilities concerning the preprocessing, specific quantitative parameter measurements, archiving were considered for medical investigations","PeriodicalId":320305,"journal":{"name":"26th International Conference on Information Technology Interfaces, 2004.","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130481220","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}
This paper describes our experiences in teaching a first year object-oriented programming course. We used Java as a vehicle to teach programming principles and BlueJ as a Java development environment. The course was heavily supported by Web-based resources delivered through WebCT. So far we consider the overall students' learning experience as being considerably enriched and a positive one
{"title":"Orienting the teaching of an introductory object-oriented programming to meet the learning objective","authors":"J. Kuljis","doi":"10.2498/CIT.2004.02.09","DOIUrl":"https://doi.org/10.2498/CIT.2004.02.09","url":null,"abstract":"This paper describes our experiences in teaching a first year object-oriented programming course. We used Java as a vehicle to teach programming principles and BlueJ as a Java development environment. The course was heavily supported by Web-based resources delivered through WebCT. So far we consider the overall students' learning experience as being considerably enriched and a positive one","PeriodicalId":320305,"journal":{"name":"26th International Conference on Information Technology Interfaces, 2004.","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132353902","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}
Compiler construction is a difficult task. Therefore more suitable solutions than the existent ones are needed. In this paper a framework (domain-specific visual language) for visual language design is presented. The framework automatically generates the compiler/interpreter by using visual notation. The main advantage of this approach is the use of a more appropriate visual notation and abstractions in comparison to classical textual notation of formal language specifications for compiler generators. Special attention is paid to better flexibility and reusability of the predefined semantic constructs
{"title":"Visual language framework for LISA","authors":"T. Kosar, D. Rebernak, M. Mernik, V. Zumer","doi":"10.1109/ITI.2004.241974","DOIUrl":"https://doi.org/10.1109/ITI.2004.241974","url":null,"abstract":"Compiler construction is a difficult task. Therefore more suitable solutions than the existent ones are needed. In this paper a framework (domain-specific visual language) for visual language design is presented. The framework automatically generates the compiler/interpreter by using visual notation. The main advantage of this approach is the use of a more appropriate visual notation and abstractions in comparison to classical textual notation of formal language specifications for compiler generators. Special attention is paid to better flexibility and reusability of the predefined semantic constructs","PeriodicalId":320305,"journal":{"name":"26th International Conference on Information Technology Interfaces, 2004.","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114966388","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}
E-government, as a segment of e-economy, has attained much interest in order to improve communications and level of services between governments and citizens. It is clear that successful e-government implementation requires not only introduction of modern information technology, but also business renovation, business process reengineering and e-business strategy. The main goal of the paper is to present the characteristics of business renovation efforts and readiness for e-government in Slovenia. The case of business renovation project in one of the Slovene Ministries, where the process modelling, analysis and simulation were extensively used is shown. The simulation modelling proved useful since it shows the process as a whole, drawbacks of the existing process, bottlenecks in the process execution, provides critical insight into process execution etc. The results of the business renovation show in reduced execution times, organizational changes, simplified business processes which represent a good foundation for informatization as a next step towards e-government
{"title":"Reforming the public sector in Slovenia case of Ministry of education, science and sport","authors":"A. Groznik, A. Kovačič, A. Vrh","doi":"10.1109/ITI.2004.242075","DOIUrl":"https://doi.org/10.1109/ITI.2004.242075","url":null,"abstract":"E-government, as a segment of e-economy, has attained much interest in order to improve communications and level of services between governments and citizens. It is clear that successful e-government implementation requires not only introduction of modern information technology, but also business renovation, business process reengineering and e-business strategy. The main goal of the paper is to present the characteristics of business renovation efforts and readiness for e-government in Slovenia. The case of business renovation project in one of the Slovene Ministries, where the process modelling, analysis and simulation were extensively used is shown. The simulation modelling proved useful since it shows the process as a whole, drawbacks of the existing process, bottlenecks in the process execution, provides critical insight into process execution etc. The results of the business renovation show in reduced execution times, organizational changes, simplified business processes which represent a good foundation for informatization as a next step towards e-government","PeriodicalId":320305,"journal":{"name":"26th International Conference on Information Technology Interfaces, 2004.","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115191344","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}
In the field of the architectural heritage, a comprehensive analysis of the historical documentation concerning sites or edifices is an unavoidable step in their understanding. Yet few solutions exist that would bridge the gap between VR techniques and solutions for documentation. In the history of architectural representation, we observe that representation has since the renaissance been understood as a mean to deliver information. Our proposal investigates possibilities opened today to reapply this vision to information visualisation and retrieval. In this paper we present solutions investigated in order to use the 3D representation of architecture as an interface to a heritage documentation. Elements discussed will be an analysis of the information we deal with, as well as the real-time, Web-based solutions developed in order to visualise objects with regards to domain specific issues such as shape uncertainty or hypothesis justification. This research is experimented on the city of Krakow (Poland) and its architectural evolutions
{"title":"Dynamic representations for information visualisation and retrieval: a case study on Krakow' s architectural heritage","authors":"J. Blaise, I. Dudek","doi":"10.1109/ITI.2004.241873","DOIUrl":"https://doi.org/10.1109/ITI.2004.241873","url":null,"abstract":"In the field of the architectural heritage, a comprehensive analysis of the historical documentation concerning sites or edifices is an unavoidable step in their understanding. Yet few solutions exist that would bridge the gap between VR techniques and solutions for documentation. In the history of architectural representation, we observe that representation has since the renaissance been understood as a mean to deliver information. Our proposal investigates possibilities opened today to reapply this vision to information visualisation and retrieval. In this paper we present solutions investigated in order to use the 3D representation of architecture as an interface to a heritage documentation. Elements discussed will be an analysis of the information we deal with, as well as the real-time, Web-based solutions developed in order to visualise objects with regards to domain specific issues such as shape uncertainty or hypothesis justification. This research is experimented on the city of Krakow (Poland) and its architectural evolutions","PeriodicalId":320305,"journal":{"name":"26th International Conference on Information Technology Interfaces, 2004.","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124304626","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}
The motivation for this research stemmed from a desire to create visual aids to help researchers/managers interpret ensembles of decision tree outputs generated by various algorithms. The method employed a simulation experiment (using only bagging) followed by application of the new visualization tools on actual survey data. Simulated data, with a prespecified structure, were "bagged" with the results presented using five graphical tools that recreated (and/or portrayed) the known data structures captured by the bagging algorithm. Then the same methodology was generalized to a structurally unknown, virgin (survey) data set. Results of the research are that five visual aids tools were examined (two of which are new approaches) and found to be useful for making action oriented interpretations from e.g., Web-survey data
{"title":"\"BOF\" trees diagram as a visual way to improve interpretability of tree ensembles","authors":"V. Luzar-Stiffler, C. Stiffler","doi":"10.2498/cit.2004.02.06","DOIUrl":"https://doi.org/10.2498/cit.2004.02.06","url":null,"abstract":"The motivation for this research stemmed from a desire to create visual aids to help researchers/managers interpret ensembles of decision tree outputs generated by various algorithms. The method employed a simulation experiment (using only bagging) followed by application of the new visualization tools on actual survey data. Simulated data, with a prespecified structure, were \"bagged\" with the results presented using five graphical tools that recreated (and/or portrayed) the known data structures captured by the bagging algorithm. Then the same methodology was generalized to a structurally unknown, virgin (survey) data set. Results of the research are that five visual aids tools were examined (two of which are new approaches) and found to be useful for making action oriented interpretations from e.g., Web-survey data","PeriodicalId":320305,"journal":{"name":"26th International Conference on Information Technology Interfaces, 2004.","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114324856","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}
One of the crucial features of transition countries is the insufficiency of funds necessary to start and operate different nonprofit oriented projects. In order to realize their projects, nonprofit organizations in transition countries have to rely mostly on foreign sources, i.e. on donors from the developed countries. The Internet as one of the visually strongest means of global communication is an obvious and reasonable way to achieve transparency of nonprofit projects. A Web portal, which would present projects to potential donors in an interesting and visually attractive way, needs to be developed systematically. Given that the Web is a global information space, when creating project presentation systems, it is necessary to approach data modeling on the basis of the defined information requirements in the function of finding donors
{"title":"Potentials of the Internet in the function of financing humanitarian (non-profit) organizations project in transition countries","authors":"B. Dukic","doi":"10.1109/ITI.2004.242950","DOIUrl":"https://doi.org/10.1109/ITI.2004.242950","url":null,"abstract":"One of the crucial features of transition countries is the insufficiency of funds necessary to start and operate different nonprofit oriented projects. In order to realize their projects, nonprofit organizations in transition countries have to rely mostly on foreign sources, i.e. on donors from the developed countries. The Internet as one of the visually strongest means of global communication is an obvious and reasonable way to achieve transparency of nonprofit projects. A Web portal, which would present projects to potential donors in an interesting and visually attractive way, needs to be developed systematically. Given that the Web is a global information space, when creating project presentation systems, it is necessary to approach data modeling on the basis of the defined information requirements in the function of finding donors","PeriodicalId":320305,"journal":{"name":"26th International Conference on Information Technology Interfaces, 2004.","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117223080","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}
The graphical object query language (GOQL) is a query language that complies with the ODMG standard and which runs on top of the O2 DBMS. The GOQL user interface comprises the user's view (UV) and the folders window (FW). The UV is a graphical representation of an ODMG database scheme, which hides from end-users most of the perplexing details of the object-oriented database model. The FW is a condensed version of the UV that serves as canvas upon which ad-hoc queries are constructed. The paper addresses principles behind the design of user interfaces and discusses features and characteristics of the GOQL user interface
{"title":"Design considerations of the GOQL interface","authors":"E. Keramopoulos, P. Pouyioutas, T. Ptohos","doi":"10.1109/ITI.2004.241877","DOIUrl":"https://doi.org/10.1109/ITI.2004.241877","url":null,"abstract":"The graphical object query language (GOQL) is a query language that complies with the ODMG standard and which runs on top of the O2 DBMS. The GOQL user interface comprises the user's view (UV) and the folders window (FW). The UV is a graphical representation of an ODMG database scheme, which hides from end-users most of the perplexing details of the object-oriented database model. The FW is a condensed version of the UV that serves as canvas upon which ad-hoc queries are constructed. The paper addresses principles behind the design of user interfaces and discusses features and characteristics of the GOQL user interface","PeriodicalId":320305,"journal":{"name":"26th International Conference on Information Technology Interfaces, 2004.","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130084475","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}
Documentation analysis and organisation are vital to the researcher when trying to understand the evolution of patrimonial edifices and sites. But the documentation that serves as source of evidences is far from being exhaustive or nonambiguous. Its very uncertainty is what really matters for researchers, and is therefore what we really need to represent inside 2D or 3D graphics. What solutions can one base on when trying to generate representations what would not say more about an edifice than what is really known? We present experiences in which, at various scales, we investigate the usability and graphical language of 2D/3D representations. We derive from these experiences remarks on how representations in the field of the architectural heritage can adhere to the notion of uncertainty and in the end really mean something for the researcher or practitioner. In conclusion to the paper we underline lessons we have learnt from these experiences on how to produce and exploit sustainable graphics in the field of the architectural heritage
{"title":"Architectural modelling and information interfacing: learning from three case studies","authors":"J. Blaise, F. De Domenico, L. De Luca, I. Dudek","doi":"10.1109/ITI.2004.241874","DOIUrl":"https://doi.org/10.1109/ITI.2004.241874","url":null,"abstract":"Documentation analysis and organisation are vital to the researcher when trying to understand the evolution of patrimonial edifices and sites. But the documentation that serves as source of evidences is far from being exhaustive or nonambiguous. Its very uncertainty is what really matters for researchers, and is therefore what we really need to represent inside 2D or 3D graphics. What solutions can one base on when trying to generate representations what would not say more about an edifice than what is really known? We present experiences in which, at various scales, we investigate the usability and graphical language of 2D/3D representations. We derive from these experiences remarks on how representations in the field of the architectural heritage can adhere to the notion of uncertainty and in the end really mean something for the researcher or practitioner. In conclusion to the paper we underline lessons we have learnt from these experiences on how to produce and exploit sustainable graphics in the field of the architectural heritage","PeriodicalId":320305,"journal":{"name":"26th International Conference on Information Technology Interfaces, 2004.","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116287183","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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