NAFIPS 2007 - 2007 Annual Meeting of the North American Fuzzy Information Processing Society最新文献

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Fuzzy Classification of Genome Sequences Prior to Assembly Based on Similarity Measures 基于相似性度量的基因组序列装配前模糊分类
S. Nasser, G. Vert, A. Breland, M. Nicolescu
{"title":"Fuzzy Classification of Genome Sequences Prior to Assembly Based on Similarity Measures","authors":"S. Nasser, G. Vert, A. Breland, M. Nicolescu","doi":"10.1109/NAFIPS.2007.383864","DOIUrl":"https://doi.org/10.1109/NAFIPS.2007.383864","url":null,"abstract":"Nucleotide sequencing of genomic data is an important step towards building understanding of gene expression. Current limitations in sequencing limit the number of base pairs that can be processed to only several hundred at a time. Consequently, these sequenced substrings need to be assembled into the overall genome. However, the existence of insertions, deletions and substitutions can complicate the assembly of subsequences and confuse existing methods. What has been needed is an approach that deals with ambiguity in trying to match and assemble a genome from its sequenced subsequences. This research develops fuzzy similarity measures between subsequences that are then incorporated into an assembler based on fuzzy logic and fuzzy similarity measures. The research addresses the problem of extensive computation required by clustering data into meaningful groups. Preliminary evaluation of this approach in conjunction with K-Means clustering suggests that this approach is at least as good as standard approaches and in some cases better.","PeriodicalId":292853,"journal":{"name":"NAFIPS 2007 - 2007 Annual Meeting of the North American Fuzzy Information Processing Society","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129596157","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
An Automated Domain-Specific Answer Ontology Construction 一个自动化的领域特定答案本体构建
Wei-Min Ko, Huan-ChungLi
{"title":"An Automated Domain-Specific Answer Ontology Construction","authors":"Wei-Min Ko, Huan-ChungLi","doi":"10.1109/NAFIPS.2007.383868","DOIUrl":"https://doi.org/10.1109/NAFIPS.2007.383868","url":null,"abstract":"Recently, with the fast development of interactive information sharing on the internet, the query-oriented answer search services are more and more popular, such as Yahoo Answers, Google Answers and so on. Their common advantages are high precision, domain-specific search, clear format, etc. However towards domain-specific search, people usually are unable to determine suitable concept terms as queries to submit on account of their lack of domain knowledge. In this paper, we propose an approach for constructing a domain-specific answer ontology automatically in respect of Chinese queries to solve the said problem. First, queries and their answers are collected from a web search space. Second, for extracting implicated concept terms from collected queries and answers, the CKIP system is utilized to make a Chinese part-of-speech tagging procedure to segment. Thirdly, use a similarity measure to converge duplicate queries with their corresponding answers and take fuzzy clustering method and degree of membership to describe the relationships between converged queries and their corresponding answers. Finally, to generate a domain-specific ontology is based on an improved hierarchical agglomerative clustering algorithm to hierarchically group queries.","PeriodicalId":292853,"journal":{"name":"NAFIPS 2007 - 2007 Annual Meeting of the North American Fuzzy Information Processing Society","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133937237","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
Using Consensus to Measure Weighted Targeted Agreement 用共识衡量加权目标协议
W. J. Tastle, M. J. Wierman
{"title":"Using Consensus to Measure Weighted Targeted Agreement","authors":"W. J. Tastle, M. J. Wierman","doi":"10.1109/NAFIPS.2007.383806","DOIUrl":"https://doi.org/10.1109/NAFIPS.2007.383806","url":null,"abstract":"The information-theoretic measures of consensus, dissent and agreement are used to address the problem of the assignment of weights in recognition of expert opinions, and interval weights to reflect categorical weights. All measures are bounded in the 0 to 1 interval. Dissent is also interpreted as an indicator of dispersion. Thus, the values selected by a panel of experts is calculated for each targeted category and the category with the highest resulting value is the one chosen to represent the overall expert judgment. Further, the distances between threat levels can be calculated and the dispersion for the distribution may also be calculated. This is different from the standard statistical measures of variance for categorical values are based on an ordinal scale of ordered categories and the standard deviation requires the presence of an interval or ratio scale. Illustrations are shown to describe the functionality of the measures.","PeriodicalId":292853,"journal":{"name":"NAFIPS 2007 - 2007 Annual Meeting of the North American Fuzzy Information Processing Society","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134510551","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: 15
Applying Novel Resampling Strategies To Software Defect Prediction 重新采样策略在软件缺陷预测中的应用
Lourdes Pelayo, S. Dick
{"title":"Applying Novel Resampling Strategies To Software Defect Prediction","authors":"Lourdes Pelayo, S. Dick","doi":"10.1109/NAFIPS.2007.383813","DOIUrl":"https://doi.org/10.1109/NAFIPS.2007.383813","url":null,"abstract":"Due to the tremendous complexity and sophistication of software, improving software reliability is an enormously difficult task. We study the software defect prediction problem, which focuses on predicting which modules will experience a failure during operation. Numerous studies have applied machine learning to software defect prediction; however, skewness in defect-prediction datasets usually undermines the learning algorithms. The resulting classifiers will often never predict the faulty minority class. This problem is well known in machine learning and is often referred to as learning from unbalanced datasets. We examine stratification, a widely used technique for learning unbalanced data that has received little attention in software defect prediction. Our experiments are focused on the SMOTE technique, which is a method of over-sampling minority-class examples. Our goal is to determine if SMOTE can improve recognition of defect-prone modules, and at what cost. Our experiments demonstrate that after SMOTE resampling, we have a more balanced classification. We found an improvement of at least 23% in the average geometric mean classification accuracy on four benchmark datasets.","PeriodicalId":292853,"journal":{"name":"NAFIPS 2007 - 2007 Annual Meeting of the North American Fuzzy Information Processing Society","volume":"206 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133892509","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: 136
Heuristic Algorithm for Interpretation of Non-Atomic Categorical Attributes in Similarity-based Fuzzy Databases Scalability Evaluation 基于相似度的模糊数据库可扩展性评价中非原子分类属性解释的启发式算法
M. S. Hossain, R. Angryk
{"title":"Heuristic Algorithm for Interpretation of Non-Atomic Categorical Attributes in Similarity-based Fuzzy Databases Scalability Evaluation","authors":"M. S. Hossain, R. Angryk","doi":"10.1109/NAFIPS.2007.383843","DOIUrl":"https://doi.org/10.1109/NAFIPS.2007.383843","url":null,"abstract":"In this work we are analyzing scalability of the heuristic algorithm we used in the past [1-4] to discover knowledge from multi-valued symbolic attributes in fuzzy databases. The non-atomic descriptors, characterizing a single attribute of a database record, are commonly used in fuzzy databases to reflect uncertainty about the recorded observation. In this paper, we present implementation details and scalability tests of the algorithm, which we developed to precisely interpret such non-atomic values and to transfer (i.e. de fuzzify) the fuzzy tuples to the forms acceptable for many regular (i.e. atomic values based) data mining algorithms. Important advantages of our approach are: (1) its linear scalability, and (2) its unique capability of incorporating background knowledge, implicitly stored in the fuzzy database models in the form of fuzzy similarity hierarchy, into the interpretation/defuzzification process.","PeriodicalId":292853,"journal":{"name":"NAFIPS 2007 - 2007 Annual Meeting of the North American Fuzzy Information Processing Society","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134295742","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
A Fuzzy Associative Memory for the Classification of Chemical Warfare Agent Simulants 基于模糊联想记忆的化学战剂模拟物分类
R. Hammell, R. J. Schafer
{"title":"A Fuzzy Associative Memory for the Classification of Chemical Warfare Agent Simulants","authors":"R. Hammell, R. J. Schafer","doi":"10.1109/NAFIPS.2007.383837","DOIUrl":"https://doi.org/10.1109/NAFIPS.2007.383837","url":null,"abstract":"This paper presents the development and testing of a fuzzy associative memory (FAM) architecture for use in the classification of chemical warfare agent simulants. A hybrid ion mobility spectrometry time-of-flight mass spectrometry (IMS(tof)MS) instrument was used to collect data for two chemical warfare agent simulants: dimethyl methyl phosphonate (DMMP) and tributyl phosphate (TBP). A preprocessor was developed to convert the raw IMS(tof)MS data file into a set of triplets containing the values for the mass, K0 (reduced mobility), and intensity for each point in the original 2-dimensional data set. Due to the small amount of available real data, synthetic data sets were also created. A classification system was constructed consisting of a FAM trained by either DMMP data or TBP data. Repeated experiments were run using different sample set configurations for training and testing. Experiment scenarios included instances where real data sets were used for training, and cases where synthetic data were used for training; the test sets contained a mixture of both real and synthetic data each time. Training was done with training sets as small as only a single sample. The results were excellent: the system was able to correctly classify the DMMP and TBP data, both real and simulated, 100% of the time.","PeriodicalId":292853,"journal":{"name":"NAFIPS 2007 - 2007 Annual Meeting of the North American Fuzzy Information Processing Society","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129605306","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
Design of Hybrid Intelligent Systems 混合智能系统的设计
P. Melin, Oscar Castillo, Janusz Kacprzyk, Witold Pedrycz
{"title":"Design of Hybrid Intelligent Systems","authors":"P. Melin, Oscar Castillo, Janusz Kacprzyk, Witold Pedrycz","doi":"10.1109/NAFIPS.2007.383905","DOIUrl":"https://doi.org/10.1109/NAFIPS.2007.383905","url":null,"abstract":"In this paper a brief introduction to hybrid intelligent systems is presented. Hybrid intelligent systems can be developed by a suitable combination of soft computing methodologies. In particular, the applications of hybrid intelligent systems to pattern recognition and intelligent manufacturing are briefly described. The importance of designing and implementing hybrid intelligent systems for real-world applications is highlighted.","PeriodicalId":292853,"journal":{"name":"NAFIPS 2007 - 2007 Annual Meeting of the North American Fuzzy Information Processing Society","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133755514","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
Interval Type-2 Fuzzy Logic for Intelligent Control Applications 区间2型模糊逻辑在智能控制中的应用
J. R. Castro, O. Castillo
{"title":"Interval Type-2 Fuzzy Logic for Intelligent Control Applications","authors":"J. R. Castro, O. Castillo","doi":"10.1109/NAFIPS.2007.383907","DOIUrl":"https://doi.org/10.1109/NAFIPS.2007.383907","url":null,"abstract":"This paper presents the development and design of a graphical user interface and a command line programming Toolbox for construction, edition and simulation of Interval Type-2 Fuzzy Inference Systems. The Interval Type-2 Fuzzy Logic System Toolbox (IT2FLS), is an environment for interval type-2 fuzzy logic inference system development. Tools that cover the different phases of the fuzzy system design process, from the initial description phase, to the final implementation phase, constitute the Toolbox. The Toolbox's best qualities are the capacity to develop complex systems and the flexibility that allows the user to extend the availability of functions for working with the use of type-2 fuzzy operators, linguistic variables, interval type-2 membership functions, defuzzification methods and the evaluation of Interval Type-2 Fuzzy Inference Systems.","PeriodicalId":292853,"journal":{"name":"NAFIPS 2007 - 2007 Annual Meeting of the North American Fuzzy Information Processing Society","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130141746","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: 17
Influence of the Migration Process on the Learning Performances of Fuzzy Knowledge Bases 迁移过程对模糊知识库学习性能的影响
Khaled Akrout, L. Baron, M. Balazinski, S. Achiche
{"title":"Influence of the Migration Process on the Learning Performances of Fuzzy Knowledge Bases","authors":"Khaled Akrout, L. Baron, M. Balazinski, S. Achiche","doi":"10.1109/NAFIPS.2007.383887","DOIUrl":"https://doi.org/10.1109/NAFIPS.2007.383887","url":null,"abstract":"This paper presents the influence of the process of migration between populations in GENO-FLOU, which is an environment of learning of fuzzy knowledge bases by genetic algorithms. Initially the algorithm did not use the process of migration. For the learning, the algorithm uses a hybrid coding, binary for the base of rules and real for the data base. This hybrid coding used with a set of specialized operators of reproduction proven to be an effective environment of learning. Simulations were made in this environment by adding a process of migration. While varying the number of populations, the number of generations and the rate of migration or simply the migration of the best elements, on various types of problems. In general, simulations show a significant improvement of the results obtained with migration. The variation of these parameters makes it possible to conclude on the dominating importance of the number of migrant generations.","PeriodicalId":292853,"journal":{"name":"NAFIPS 2007 - 2007 Annual Meeting of the North American Fuzzy Information Processing Society","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133213323","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
Relational Factor Analysis with o-Matrix Decomposition 基于0矩阵分解的相关因子分析
R. Belohlávek, Vilém Vychodil
{"title":"Relational Factor Analysis with o-Matrix Decomposition","authors":"R. Belohlávek, Vilém Vychodil","doi":"10.1109/NAFIPS.2007.383828","DOIUrl":"https://doi.org/10.1109/NAFIPS.2007.383828","url":null,"abstract":"The paper presents results on factorization of matrices describing objects and their fuzzy attributes. Entries of the matrices are truth degrees, e.g., numbers from the real unit interval [0, 1]. In general, matrix entries can be elements from a complete residuated lattice. We propose a novel method to factorize such matrices which is based on using so-called formal concepts as factors. To factorize an n times m object-attribute matrix I means to decompose I into a product A omicron B of an n times k object-factor matrix A and an k times m factor-attribute matrix B. In addition, we want the number k of factors as small as possible. The product o we consider in this paper is the well-known product corresponding to max-t-norm composition of fuzzy relations. We focus on theoretical analysis of the method we propose. We prove several results, e.g., a result which says that our method provides the best factorization in that it leads to the smallest number of factors. In addition, we present an illustrative example.","PeriodicalId":292853,"journal":{"name":"NAFIPS 2007 - 2007 Annual Meeting of the North American Fuzzy Information Processing Society","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125922837","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
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