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2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622)最新文献

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Fuzzy adaptive logic networks 模糊自适应逻辑网络
2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622) Pub Date : 2002-08-07 DOI: 10.1109/NAFIPS.2002.1018110
W. Pedrycz, N. Pizzi
{"title":"Fuzzy adaptive logic networks","authors":"W. Pedrycz, N. Pizzi","doi":"10.1109/NAFIPS.2002.1018110","DOIUrl":"https://doi.org/10.1109/NAFIPS.2002.1018110","url":null,"abstract":"In this study, we elaborate on an important synergy between geometry and fuzzy logic in pattern recognition and show it translates into a coherent architecture of a classifier. The crux of the proposed topology lies in a collection of simple linear classifiers (perceptrons) being combined into a logically coherent topology. In a nutshell: perceptrons come with a simple geometrical interpretation while processing based on fuzzy operators (AND and OR logic units-fuzzy neurons) results in highly transparent and interpretable results. When combined together, forming a fuzzy adaptive logic network they give rise to the computing construct that retains the advantages of these two paradigms of information processing. We discuss a comprehensive development environment of adaptive logic networks and show their application to several classification problems.","PeriodicalId":348314,"journal":{"name":"2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115874517","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}
引用次数: 6
Fuzziness in adaptive hypermedia models 自适应超媒体模型的模糊性
2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622) Pub Date : 2002-08-07 DOI: 10.1109/NAFIPS.2002.1018068
Miguel-Ángel Sicilia, P. Díaz, I. Aedo, E. García
{"title":"Fuzziness in adaptive hypermedia models","authors":"Miguel-Ángel Sicilia, P. Díaz, I. Aedo, E. García","doi":"10.1109/NAFIPS.2002.1018068","DOIUrl":"https://doi.org/10.1109/NAFIPS.2002.1018068","url":null,"abstract":"Diverse forms of imperfect information arise in the context of adaptive hypermedia systems, and especially in personalized Web applications, where the user population is fairly diverse. Several adaptive hypermedia systems have been developed that deal explicitly with some form of uncertainty or imprecision, but hypermedia models largely ignore these aspects. In this paper, an extension of the static part of a hypermedia model is described, to address some forms of extended information. Specifically, fuzzy set theory is used to extend some of the model elements, including user categories and links, resulting in more realistic information definitions and also in novel concepts, like fuzzy links, that are generalizations of well-known adaptive techniques. An extension of the UML notation is also described, to visually represent imprecision when modeling an adaptive system.","PeriodicalId":348314,"journal":{"name":"2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131989903","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}
引用次数: 16
On the lattice of fuzzy weak subalgebras of a fuzzy partial algebra 一类模糊偏代数的模糊弱子代数的格
2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622) Pub Date : 2002-08-07 DOI: 10.1109/NAFIPS.2002.1018026
W. Bartol, J. Casasnovas, F. Rosselló
{"title":"On the lattice of fuzzy weak subalgebras of a fuzzy partial algebra","authors":"W. Bartol, J. Casasnovas, F. Rosselló","doi":"10.1109/NAFIPS.2002.1018026","DOIUrl":"https://doi.org/10.1109/NAFIPS.2002.1018026","url":null,"abstract":"Fuzzy partial algebras can be understood as incomplete algebraic structures whose elements are uncertain or imprecise, and thus fuzzy weak subalgebras of a fuzzy algebra correspond to structural approximations of the knowledge represented by the fuzzy algebra. In this paper we characterize those lattices that are isomorphic to the lattice of fuzzy weak subalgebras of a fuzzy partial algebra, and we discuss what information about a fuzzy monounary partial algebra can be extracted from its lattice of fuzzy weak subalgebras.","PeriodicalId":348314,"journal":{"name":"2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133475965","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}
引用次数: 1
Fuzzy spatial querying with inexact inference 具有不精确推理的模糊空间查询
2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622) Pub Date : 2002-08-07 DOI: 10.1109/NAFIPS.2002.1018089
Huiqing Yang, Maria Seale, Dia Ali, S. Rahimi, F. Petry, K. Shaw
{"title":"Fuzzy spatial querying with inexact inference","authors":"Huiqing Yang, Maria Seale, Dia Ali, S. Rahimi, F. Petry, K. Shaw","doi":"10.1109/NAFIPS.2002.1018089","DOIUrl":"https://doi.org/10.1109/NAFIPS.2002.1018089","url":null,"abstract":"The issue of spatial querying accuracy has been viewed as critical to the successful implementation and long-term viability of the GIS technology. In order to improve the spatial querying accuracy and quality, the problems associated with the areas of fuzziness and uncertainty are of great concern in the spatial database community. There has been a strong demand to provide approaches that deal with inaccuracy and uncertainty in GIS. In this paper, we are dedicated to develop an approach that can perform fuzzy spatial querying under uncertainty. An inexact inferring strategy is investigated. The study shows that the fuzzy set and the certainty factor can work together to deal with spatial querying. Querying examples implemented by FuzzyClips are also provided.","PeriodicalId":348314,"journal":{"name":"2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115353250","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}
引用次数: 6
Fuzzy spatial data mining 模糊空间数据挖掘
2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622) Pub Date : 2002-08-07 DOI: 10.1109/NAFIPS.2002.1018052
G. B. Smith, S. Bridges
{"title":"Fuzzy spatial data mining","authors":"G. B. Smith, S. Bridges","doi":"10.1109/NAFIPS.2002.1018052","DOIUrl":"https://doi.org/10.1109/NAFIPS.2002.1018052","url":null,"abstract":"A fuzzy spatial data mining technique has been developed to extract relationships describing relative position of classes of objects from raster images. Several different rule forms are described which represent different types of directional relationships between classes of objects. The method has been tested with hand-generated, synthetic, and sonar imagery.","PeriodicalId":348314,"journal":{"name":"2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124207747","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}
引用次数: 16
Representation of hand written English characters by a sequence of fuzzy sets 用模糊集合序列表示手写英文字符
2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622) Pub Date : 2002-08-07 DOI: 10.1109/NAFIPS.2002.1018078
B. Moon, C. Chung, I. Hwang, Y.K. Kim
{"title":"Representation of hand written English characters by a sequence of fuzzy sets","authors":"B. Moon, C. Chung, I. Hwang, Y.K. Kim","doi":"10.1109/NAFIPS.2002.1018078","DOIUrl":"https://doi.org/10.1109/NAFIPS.2002.1018078","url":null,"abstract":"In this paper, we describe how to represent lower-case English letters by a sequence of one to seven fuzzy sets. Each fuzzy set represents an arc segment of the character and is a Cartesian product of four fuzzy sets: the first set represents the direction of the arc segment, the second represents the shape of the segment, the third represents the arc length and the fourth represents the direction of change from the previous segment. Starting from a gray-scale image of a character, we describe procedures for thinning the image, extracting a curve describing the writing sequence, smoothing the curve and determining which fuzzy sets it belongs to.","PeriodicalId":348314,"journal":{"name":"2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622)","volume":"445 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129806568","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}
引用次数: 0
Fuzzy logic regulated power supply for a UHF digital television transmission 一种用于超高频数字电视传输的模糊逻辑稳压电源
2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622) Pub Date : 2002-08-07 DOI: 10.1109/NAFIPS.2002.1018022
H. Ying, A. Haj-Ali, A. Morris, I. Burhan Turksen, A. Esper, Kiran Patel, S. Starks, V. Kreinovich, J. Casasnovas, W. Bartol, F. Rossello, Dan Meng, Yang Xu, K. Qin, Thomas Whalen, Mika Sato-Ilic
{"title":"Fuzzy logic regulated power supply for a UHF digital television transmission","authors":"H. Ying, A. Haj-Ali, A. Morris, I. Burhan Turksen, A. Esper, Kiran Patel, S. Starks, V. Kreinovich, J. Casasnovas, W. Bartol, F. Rossello, Dan Meng, Yang Xu, K. Qin, Thomas Whalen, Mika Sato-Ilic","doi":"10.1109/NAFIPS.2002.1018022","DOIUrl":"https://doi.org/10.1109/NAFIPS.2002.1018022","url":null,"abstract":"In this work, we show that the fuzzy logic controller can be used to significantly improve the performance of a power supply regulator over conventional control techniques. The existing linear regulator circuit used in the current design has excessive overshoot and ringing in response to step changes, particularly during initial turn-on into a cold (very low impedance) filament. The linear regulator compensates for gradual changes in the load, but an external system must apply the reference voltage gradually to prevent excessive overshoot. For these reasons, a fuzzy controller is an excellent choice to provide the needed nonlinear regulation. This regulator is used in high power amplifiers produced by Thales Broadcast and Multimedia, a manufacturer of UHF television transmitters located in Southwick, Massachusetts.","PeriodicalId":348314,"journal":{"name":"2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128345056","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}
引用次数: 1
Bipolar fuzzy cognitive mapping and bipolar visualization for OLAP/OLAM OLAP/OLAM双相模糊认知映射与双相可视化
2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622) Pub Date : 2002-08-07 DOI: 10.1109/NAFIPS.2002.1018076
Wen-Ran Zhang
{"title":"Bipolar fuzzy cognitive mapping and bipolar visualization for OLAP/OLAM","authors":"Wen-Ran Zhang","doi":"10.1109/NAFIPS.2002.1018076","DOIUrl":"https://doi.org/10.1109/NAFIPS.2002.1018076","url":null,"abstract":"Bipolar fuzzy sets and bipolar fuzzy cognitive maps (FCMs) are introduced for online analytical processing (OLAP) and online analytical mining (OLAM). As cognitive models CMs hold great potential for visualization in OLAP and OLAM. Due to the lack of formal mathematical basis, however, CM-based OLAP and OLAM have not become popular. Compared with existing approaches, bipolar fuzzy sets and CMs have a number of advantages. First, they are formal logical as well as cognitive models. Secondly, strict bipolarity leads to the notions of fuzzy equilibrium that provides a theoretical basis for bipolar information or knowledge fusion, clustering, and coordination. Thirdly, a fuzzy equilibrium relation or FCM induces bipolar fuzzy clusters that distinguish fuzzy coalition, fuzzy conflict and fuzzy harmony subsets. Fourthly, equilibrium energy and stability analysis provides perspectives and support for strategic decision-making. Basic ideas are illustrated with FCMs in international relations.","PeriodicalId":348314,"journal":{"name":"2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128908177","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}
引用次数: 2
Global stability of fuzzy systems based variable structure control 基于变结构控制的模糊系统全局稳定性
2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622) Pub Date : 2002-08-07 DOI: 10.1109/NAFIPS.2002.1018057
B. M. Al-Hadithi, F. Matía, A. Jiménez
{"title":"Global stability of fuzzy systems based variable structure control","authors":"B. M. Al-Hadithi, F. Matía, A. Jiménez","doi":"10.1109/NAFIPS.2002.1018057","DOIUrl":"https://doi.org/10.1109/NAFIPS.2002.1018057","url":null,"abstract":"Global and asymptotic stability of a fuzzy system represented by the Affine Takagi-Sugeno (T-S) model controlled by a fuzzy variable structure controller (VSC) is presented. In this paper, new conditions for the global stability, are developed. A design of a robust fuzzy based Variable Structure Controller is presented to stabilize and improve the response of non-linear unstable systems. Both the fuzzy controller (FC) and the controlled system are represented by the affine T-S fuzzy model. A control strategy is proposed to reduce the chattering problem which is considered the main drawback of the VSC by introducing a boundary layer around the switching surface. A simulation study for an inverted pendulum mounted on a cart is used to demonstrate the design procedure. The results obtained show a robust and stable behaviour when the system is subjected to an impulse and perturbation effect.","PeriodicalId":348314,"journal":{"name":"2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127889736","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}
引用次数: 5
Activity profiles for intrusion detection 用于入侵检测的活动配置文件
2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622) Pub Date : 2002-08-07 DOI: 10.1109/NAFIPS.2002.1018104
L. J. Kohout, Alec Yasinsac, E. Mcduffie
{"title":"Activity profiles for intrusion detection","authors":"L. J. Kohout, Alec Yasinsac, E. Mcduffie","doi":"10.1109/NAFIPS.2002.1018104","DOIUrl":"https://doi.org/10.1109/NAFIPS.2002.1018104","url":null,"abstract":"We propose a methodology to perform behavior-based intrusion detection on security protocols using fuzzy relational methods. Fuzzified Allen temporal algebra plays an important role in capturing the time dimension of concurrent activities of principals as well as of intruders.","PeriodicalId":348314,"journal":{"name":"2002 Annual Meeting of the North American Fuzzy Information Processing Society Proceedings. NAFIPS-FLINT 2002 (Cat. No. 02TH8622)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125449437","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}
引用次数: 13
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