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2021 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE)最新文献

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Towards a Federated Fuzzy Learning System 一种联邦模糊学习系统
Pub Date : 2021-07-11 DOI: 10.1109/FUZZ45933.2021.9494392
A. Wilbik, P. Grefen
The abundant availability of data allows the construction of predictive systems that support decision makers in business and society. A problem arises if an organization does not have a large enough data set by itself to construct a system of adequate quality. In this case, data across organizations has to be used, which introduces risks of data sharing. To overcome these risks, federated learning is getting increasingly popular to enable automated learning in distributed networks of autonomous partners without sharing raw data. So far, only crisp systems have been used in this context. The use of a fuzzy inference system can bring advantages to deal with vagueness and uncertainty in predictive systems. Therefore, in this paper we explore the (hopefully) happy marriage of federated learning and fuzzy inference mechanisms. We show that it is indeed possible to build a fuzzy inference model in a federated learning setting, resulting in a Federated Fuzzy Learning System (F2LS). We also show that this combination brings advantages to decision making that cannot be achieved with either mechanism in isolation.
数据的丰富可用性允许构建支持商业和社会决策者的预测系统。如果一个组织本身没有足够大的数据集来构建一个足够质量的系统,就会出现问题。在这种情况下,必须使用跨组织的数据,这引入了数据共享的风险。为了克服这些风险,联邦学习正变得越来越流行,可以在不共享原始数据的情况下,在自主合作伙伴的分布式网络中实现自动学习。到目前为止,在这种情况下只使用了脆系统。模糊推理系统的使用可以为处理预测系统中的模糊性和不确定性带来优势。因此,在本文中,我们探索(希望)联邦学习和模糊推理机制的幸福结合。我们表明,在联邦学习设置中构建模糊推理模型确实是可能的,从而产生联邦模糊学习系统(F2LS)。我们还表明,这种组合为决策带来了单独使用任何一种机制都无法实现的优势。
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引用次数: 9
Towards innovation focused fuzzy decision making by consensus 走向以创新为中心的共识模糊决策
Pub Date : 2021-07-11 DOI: 10.1109/FUZZ45933.2021.9494531
J. Kacprzyk, S. Zadrożny, H. Nurmi, A. Bozhenyuk
A new class of group decision making model under fuzzy preferences and a fuzzy majority is proposed which combines the traditional, widely employed and successful decision (making) by consensus, and the new idea, based on recent results from decision and, cognitive sciences, management science, psychology, etc. suggesting that decision by consensus may often lead to noninnovative enough decisions, and a different approach based on individuals (agents) who are not consensory but express different, maybe dissensory opinions, with a higher innovation potential, may be better. Here, in the new model, after the first phase of traditional decision by consensus, we use the concepts of Kacprzyk and Zadrożny's [28] consensory and dissensory agents, and then use primarily testimonies of dissensory agents which can imply innovative options to be chosen by using Kacprzyk [17], [18], and Kacprzyk, Zadrożny, Fedrizzi and Nurmi [29] group decision solution concepts, notably various fuzzy cores (i.e. fuzzy sets of options preferred over most other options).
基于决策科学、认知科学、管理科学、心理学等学科的最新研究成果,提出了一种新的模糊偏好和模糊多数下的群体决策模型,该模型将传统的、广泛应用的、成功的共识决策与共识决策相结合,认为共识决策往往导致决策不够创新。而另一种基于个体(代理人)的不同方法可能更好,这些个体(代理人)没有共识,但表达了不同的,也许是不理智的意见,具有更高的创新潜力。在这里,在新模型中,在传统共识决策的第一阶段之后,我们使用了Kacprzyk和Zadrożny[28]的感知和感知代理的概念,然后主要使用感知代理的证词,这些证词可以暗示通过使用Kacprzyk[17],[18]和Kacprzyk, Zadrożny, Fedrizzi和Nurmi[29]群体决策解决方案概念来选择创新的选项,特别是各种模糊核心(即优选于大多数其他选项的模糊集)。
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引用次数: 3
Towards Optimization of Triangular Norms in Weighted Fuzzy Petri Nets for Hierarchical Applications in Subject Area of Passenger Transport Logistics 加权模糊Petri网三角规范优化在客运物流学科领域的分层应用
Pub Date : 2021-07-11 DOI: 10.1109/FUZZ45933.2021.9494587
Yurii Bloshko, Z. Suraj, Oksana Olar
The paper presents a comparison of classical (ZtN, GtN, ZsN) and optimized (ZtN, ZtN, LsN) triples of functions for solving the hierarchical structure of the problem of passenger transport logistics. It covers the description of the subject area and its hierarchical scheme, the creation of production rules based on the knowledge of the experts, the creation of a weighted fuzzy Petri nets model with different triples, and the following analysis of the results. In order to illustrate the obtained results, a simulation was used in special software - PNeS®. The results of the experiment showed the development of the hierarchy and the following observation on calculations: the optimized triple of functions achieves higher output values, but at the same time, it can lead to an alternative decision.
本文比较了经典的(ZtN、GtN、ZsN)和优化的(ZtN、ZtN、LsN)三元函数,用于求解客运物流的层次结构问题。它涵盖了主题领域及其层次结构的描述,基于专家知识的生成规则的创建,具有不同三元组的加权模糊Petri网模型的创建,以及对结果的以下分析。为了说明得到的结果,在专用软件PNeS®中进行了仿真。实验结果显示了层次结构的发展,并在计算上观察到:优化后的三组函数获得了更高的输出值,但同时也会导致备选决策。
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引用次数: 0
Switched Control and Tracking Application in Aeropendulum System using Fuzzy Models 模糊模型在气悬架系统中的切换控制与跟踪应用
Pub Date : 2021-07-11 DOI: 10.1109/FUZZ45933.2021.9494543
Hyago R. M. Silva, R. Cardim, M. Teixeira, E. Assunção, Igor T. M. Ramos
Switched robust controllers are presented and applied to an aeropendulum system made at the Control Research Laboratory from DEE-FEIS-UNESP in Brazil. The system has nonlinear dynamics and it is approximated by Takagi-Sugeno fuzzy systems using linear local models for different operation points. Integrators are used in implementation to eliminate the steady-state error. The method consists of including a new state space variable in the system in order to obtain zero steady-state error. The switched control eliminates the need of finding the membership functions which are used to combine the local linear models of the Takagi-Sugeno fuzzy system. It is based on the minimization of the time derivative of the Lyapunov function and it is designed by means of linear matrix inequalities. Actuator saturation is also considered for the design of the controllers. At the end, implementations of the aforementioned controllers in the aeropendulum systems are presented considering the specifications of the decay rate and norm constraints of the controller gains.
介绍了切换鲁棒控制器,并将其应用于巴西DEE-FEIS-UNESP控制研究实验室制造的气悬架系统。该系统具有非线性动力学特性,采用Takagi-Sugeno模糊系统对不同工作点采用线性局部模型进行逼近。在实现中使用积分器来消除稳态误差。该方法包括在系统中加入一个新的状态空间变量,以获得零稳态误差。切换控制消除了寻找隶属函数的需要,该隶属函数用于组合Takagi-Sugeno模糊系统的局部线性模型。它基于Lyapunov函数时间导数的最小化,并利用线性矩阵不等式进行设计。控制器的设计还考虑了执行器的饱和。最后,考虑了控制器增益的衰减率规范和范数约束,给出了上述控制器在气悬架系统中的实现。
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引用次数: 3
A Fall from Height prevention proposal for construction sites based on Fuzzy Markup Language, JFML and IoT solutions 基于模糊标记语言、JFML和物联网解决方案的建筑工地防坠方案
Pub Date : 2021-07-11 DOI: 10.1109/FUZZ45933.2021.9494548
M. C. Rey-Merchán, Antonio López Arquillos, J. M. Soto-Hidalgo
With the increasing complexity of problems in the construction sector, fall from height is one of the most worrying in this sector. An appropriate use of a harness can be the difference between an incident or a critical accident. Traditionally, safety training, safety communication and onsite inspections are the habitual tools to manage the adequate use of harness. Despite on the availability of some technological solutions to monitor workers safety, their use are not frequent because some construction conditions. For this reason, the integration of technology and security expert knowledge in this task are a key issue. Different technological solutions, mainly based on computer vision approaches, have been proposed in this context. Nevertheless, these solutions lack ubiquitous computing, real time decisions capacity and expert knowledge management being crucial in this sector. In this context, Internet of Things (IoT) and Fuzzy Logic Systems (FLS) can provide several advantages: acquired data from sensors and real time decisions based on FLS. In this paper, the definition and use of an IoT infrastructure integrated with JFML, an open source library to FLS according to the IEEE std 1855, to support experts' decision making in fall from height are presented.
随着建筑行业问题的日益复杂,从高处坠落是最令人担忧的问题之一。安全带的正确使用可能是一个事故或严重事故之间的区别。传统上,安全培训、安全沟通和现场检查是管理安全带充分使用的常用工具。尽管有一些技术解决方案可以监测工人的安全,但由于某些施工条件,它们的使用并不频繁。因此,技术与安全专家知识的融合是该任务中的一个关键问题。在此背景下,已经提出了不同的技术解决方案,主要基于计算机视觉方法。然而,这些解决方案缺乏无处不在的计算,实时决策能力和专家知识管理,这在这个领域至关重要。在这种情况下,物联网(IoT)和模糊逻辑系统(FLS)可以提供几个优势:从传感器获取数据和基于FLS的实时决策。本文介绍了基于IEEE标准1855的物联网基础设施与FLS开源库JFML的定义和使用,以支持专家在高空坠落时的决策。
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引用次数: 4
Question-Answering System with Linguistic Summarization 具有语言摘要的问答系统
Pub Date : 2021-07-11 DOI: 10.1109/FUZZ45933.2021.9494389
Nhuan D. To, M. Reformat, R. Yager
The increased popularity of Linked Open Data (LOD) and advances in Natural Language Processing techniques have led to the development of Question Answering Systems (QASs) that utilize Knowledge Graphs as data sources. QASs perform well on simple questions providing precise and concise answers. Yet, most of them cannot process answers that contain a large volume of numerical values and are not able to provide users with answers in a human-friendly format. In this paper, we propose a user-defined method for constructing linguistic summarization of multi-feature data. It selects suitable summarizers and quantifiers and works with linguistic constraints imposed on the data. The method relies on definitions of linguistic terms constructed by users using an easy and simple graphical interface. Additionally, we introduce a Context-based User-defined Weighted Averaging (CUWA) operator. It allows determining an average value of data that satisfies multiple constraints that are account for the context defined by the user. We include several illustrative examples.
链接开放数据(LOD)的日益普及和自然语言处理技术的进步导致了利用知识图作为数据源的问答系统(QASs)的发展。QASs在简单的问题上表现出色,提供了精确而简洁的答案。然而,它们大多无法处理包含大量数值的答案,也无法以人性化的格式为用户提供答案。本文提出了一种用户自定义的多特征数据语言摘要构建方法。它选择合适的总结词和量词,并与强加在数据上的语言约束一起工作。该方法依赖于用户使用简单易用的图形界面构建的语言术语定义。此外,我们引入了一个基于上下文的用户自定义加权平均(CUWA)算子。它允许确定满足用户定义的上下文的多个约束的数据平均值。我们包括几个说明性的例子。
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引用次数: 0
Fuzzy Prediction Model to Measure Chatbot Quality of Service 衡量聊天机器人服务质量的模糊预测模型
Pub Date : 2021-07-11 DOI: 10.1109/FUZZ45933.2021.9494346
E. H. Almansor, F. Hussain
Detecting breakdown is a common phenomenon in the conversational system, which is referred to when the system fails to provide appropriate responses to the user. Existing studies are detect breakdown using different features such as word similarity, topic transition, and clustering. In this paper, we focus on the different important feature, which is human thinking and reasoning. We use this feature to model chatbot quality of services (CQoS) based on detecting the breakdown. Thus we introduce the fuzzy prediction rule-based framework to measure chatbot quality of service by detecting the breakdown utterance considering end-user and chatbot points of view. Inputs utilized in the proposed fuzzy logic-based model are multiple useful features extracted from utterances. The outputs are the degrees of relevance for each utterance to the quality of services. Several fuzzy rules are designed, and the defuzzification method is used in order to achieve desired CQoS results. Based on the outputs from the fuzzy model, the handover mechanism will activate. We evaluate the proposed formwork with other state-of-the-art models.
检测故障是会话系统中的一种常见现象,它指的是系统无法向用户提供适当的响应。现有的研究是利用词相似度、主题转换和聚类等不同特征来检测故障。在本文中,我们关注的是不同的重要特征,即人类的思维和推理。我们利用这一特征在检测故障的基础上对聊天机器人服务质量(CQoS)进行建模。因此,我们引入基于模糊预测规则的框架,从终端用户和聊天机器人的角度出发,通过检测故障话语来衡量聊天机器人的服务质量。所提出的基于模糊逻辑的模型中使用的输入是从话语中提取的多个有用特征。输出是每个话语与服务质量的相关程度。设计了若干模糊规则,并采用去模糊化方法,以达到期望的CQoS效果。根据模糊模型的输出,启动切换机制。我们用其他最先进的模型来评估建议的模板。
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引用次数: 1
Preference and weak interval-valued operator in decision making problem 决策问题中的偏好与弱区间值算子
Pub Date : 2021-07-11 DOI: 10.1109/FUZZ45933.2021.9494565
Barbara Pekala, P. Drygas, M. Knap, Dorota Gil, Bogdan Kwiatkowski
In this paper, we concentrate on study interval-valued fuzzy relations in decision problems based on preference relations, and a preference structure making up of the strict preference relation, indifference relation, and incomparability relation which may be defined with the use of interval-valued aggregation and interval-valued fuzzy negation function. We analyze the influence of some new types of fusion functions on the effectiveness of the decision process. The studies concern different aggregation classes due to the type of monotonicity/order used.
本文主要研究了基于偏好关系的决策问题中的区间值模糊关系,以及一种由严格偏好关系、无差异关系和不可比较关系组成的偏好结构,这种偏好结构可以用区间值聚合和区间值模糊否定函数来定义。分析了几种新型的融合函数对决策过程有效性的影响。由于使用的单调性/顺序类型不同,研究涉及不同的聚合类。
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引用次数: 1
Application of entropy measures with uncertainty in classification methods with missing data problem 不确定性熵测度在缺失数据分类方法中的应用
Pub Date : 2021-07-11 DOI: 10.1109/FUZZ45933.2021.9494498
Barbara Pekala, Dawid Kosior, Krzysztof Dyczkowski, Jaroslaw Szkola
The problem of measuring the degree of entropy based on precedence indicator and similarity measures under conditions of uncertainty or imprecision was studied. So we call back to the notion of precedence and similarity measures of interval-valued fuzzy sets (IVFSs) and we construct an entropy measure with uncertainty by applying for IVFSs of different orders. In addition, we discuss the impact of entropy measures reflecting the uncertainty in the decision-making problem that employed these new measures in the problem of missing values.
研究了不确定或不精确条件下基于优先指标和相似测度的熵度度量问题。因此,我们回到区间值模糊集的优先度和相似性度量的概念,并通过应用于不同阶次的区间值模糊集,构造了一个具有不确定性的熵测度。此外,我们还讨论了熵测度在缺失值问题中反映决策问题不确定性的影响。
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引用次数: 2
A Path-based Fuzzy Approach to Color Image Segmentation 基于路径的彩色图像模糊分割方法
Pub Date : 2021-07-11 DOI: 10.1109/FUZZ45933.2021.9494488
J. Chamorro-Martínez, Míriam Mengíbar-Rodríguez, P. Martínez-Jiménez
Color is one of the most used features for image segmentation. However, two uncertainty problems arise in this scope: the color feature is imprecise by nature, and the boundaries between regions in real images are usually blurred. In this paper, we propose a fuzzy color-based image segmentation, where not only the obtained regions are fuzzy, but also the color feature used in this process. This way, our approach takes into account the blurriness of boundaries between regions, as well as the uncertainty associated to the color feature. On the one hand, colors are modeled through fuzzy sets related to the linguistic terms used by humans, providing membership degrees associated to them. On the other hand, we propose a path-based fuzzy segmentation technique, where the relationship between two pixels is quantified by means of fuzzy connectivity. This way, given a seed point, the connectivity between this point and the rest of pixels in the image can be used to obtain the corresponding fuzzy region.
颜色是图像分割中最常用的特征之一。然而,在这个范围内出现了两个不确定性问题:颜色特征本质上是不精确的,真实图像中区域之间的边界通常是模糊的。在本文中,我们提出了一种基于模糊颜色的图像分割方法,不仅得到的区域是模糊的,而且在这个过程中使用的颜色特征也是模糊的。这样,我们的方法考虑了区域之间边界的模糊性,以及与颜色特征相关的不确定性。一方面,通过与人类使用的语言术语相关的模糊集对颜色进行建模,并提供与之相关的隶属度。另一方面,我们提出了一种基于路径的模糊分割技术,其中两个像素之间的关系通过模糊连通性来量化。这样,给定一个种子点,就可以利用这个点与图像中其他像素点之间的连通性来得到相应的模糊区域。
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引用次数: 2
期刊
2021 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE)
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