Optimization with linguistic variables

2003 ◽  
pp. 113-121
Author(s):  
Christer Carlsson ◽  
Robert Fullér
Keyword(s):  
Linguistic Variables

Design and Simulation of Smart Control System for Internet Traffic Distribution on Servers by Using Fuzzy Logic System

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Raid Daoud ◽  
Yaareb Al-Khashab
Keyword(s):  
Fuzzy Logic ◽  
Control System ◽  
Input Parameter ◽  
Traffic Density ◽  
The Internet ◽  
Linguistic Variables ◽  
Internet Service ◽  
Traffic Distribution ◽  
Smart Control ◽  
High Level

The internet service is provided by a given number of servers located in the main node of internet service provider (ISP). In some cases; the overload problem was occurred because a demand on a given website goes to very high level. In this paper, a fuzzy logic control (FLC) has proposed to distribute the load into the internet servers by a smart and flexible manner. Three effected parameters are tacked into account as input for FLC: link capacity which has three linguistic variables with Gaussian membership function (MF): (small, medium and big), traffic density with linguistic variables (low, normal and high) and channel latency with linguistic variables (empty, half and full); with one output which is the share server status (single, simple and share). The proposed work has been simulated by using MATLAB 2016a, by building a structure in the Fuzzy toolbox. The results were fixed by two manners: the graphical curves and the numerical tables, the surface response was smoothly changed and translates the well-fixed control system. The numerical results of the control system satisfy the idea of the smart rout for the incoming traffics from the users to internet servers. So, the response of the proposed system for the share of server ratio is 0.122, when the input parameter in the smallest levels; and the ratio is 0.879 when the input parameters are in highest level. The smart work and flexible use for the FLC is the main success solution for most of today systems control.

scholarly journals Dimensional Analysis under Linguistic Pythagorean Fuzzy Set

Symmetry ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 440
Author(s):  
Aldo Joel Villa Silva ◽  
Luis Pérez-Domínguez ◽  
Erwin Martínez Gómez ◽  
David Luviano-Cruz ◽  
Delia Valles-Rosales
Keyword(s):  
Decision Making ◽  
Dimensional Analysis ◽  
Fuzzy Set ◽  
Multi Criteria Decision Making ◽  
Linguistic Variables ◽  
Mutual Relationship ◽  
Pythagorean Fuzzy Set ◽  
Cnc Router ◽  
Selection Of

Dimensional analysis under linguistic Pythagorean fuzzy set (DA-LPFS) is a technique to handle qualitative (intangible) as well as the interactions between criteria, by combining dimensional analysis (DA) and Pythagorean fuzzy set (PFS) with linguistic variables. In this paper, a novel DA method is proposed for LPFSs based in a PFS extension, in order to consider the mutual relationship among criteria and handle qualitative (fuzzy) and quantitative (crisp) information usually involved in Multi-criteria decision making (MCDM) problems. Finally, DA-LPFS is applied to handle a case concerning the selection of CNC router to illustrate the applicability of the method.

scholarly journals Extended VIKOR-QUALIFLEX Method Based on Trapezoidal Fuzzy Two-Dimensional Linguistic Information for Multiple Attribute Decision-Making with Unknown Attribute Weight

Mathematics ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 37
Author(s):  
Ye Li ◽  
Yisheng Liu
Keyword(s):  
Decision Making ◽  
Qualitative Evaluation ◽  
Multiple Attribute Decision Making ◽  
Two Dimensional ◽  
Linguistic Variables ◽  
Linguistic Information ◽  
Attribute Weight ◽  
Model Based ◽  
Subjective Weight ◽  
Multiple Attribute

Considering the advantages of trapezoid fuzzy two-dimensional linguistic variables (TrF2DLVs), which can not only accurately describe the qualitative evaluation but also use qualitative linguistic variables (LVs) to describe the confidence level of this evaluation in the second dimension, this paper proposes a novel method based on trapezoidal fuzzy two-dimensional linguistic information to solve multiple attribute decision-making (MADM) problems with unknown attribute weight. First, a combination weight model is constructed, which covers a subjective weight determination model based on the proposed trapezoidal fuzzy two-dimensional linguistic best-worst method (TrF2DL-BWM) and an objective weight determination model based on the proposed CRITIC method. Then, in order to accurately rank the alternatives, an extended VIKOR-QUALIFLEX method is proposed, which can measure the concordance index of each ranking combination by means of group utility and individual maximum regret value of each evaluation alternative. Finally, a practical problem of lean management assessment for industrial residential projects is solved by the proposed method, and the effectiveness and advantages of the method are demonstrated by comparative analysis and discussion.

The role of information structure in the instantiation of objects: Evidence from Amazonian Spanish

2020 ◽  
Vol 13 (1) ◽  
pp. 219-245
Author(s):  
Rosa Vallejos ◽  
Evelyn Fernández-Lizárraga ◽  
Haley Patterson
Keyword(s):  
Regression Analysis ◽  
Information Structure ◽  
Mixed Model ◽  
Linguistic Variables ◽  
Social Variables ◽  
Null Objects ◽  
The Impact ◽  
Role Of Information ◽  
Activation Status

AbstractThis study analyzes the instantiation of objects in Peruvian Amazonian Spanish (PAS) discourse in two communities with distinct linguistic contexts. We examine the impact of two social variables (gender and place) and nine linguistic variables (transitivity, animacy, definiteness, anaphora function, anaphora expression, cataphora function, cataphora expression, activation, topic persistence) on the speech of eight participants. Our findings indicate that null instantiation in PAS is pervasive, occurring with a range of verb lexemes. While neither gender nor place are significant predictors of null objects, various linguistic variables contribute to the instantiation of objects. The five significant variables as determined by a mixed model regression analysis include the following: animacy, definiteness, anaphora expression, cataphora expression, and activation status. Several findings are consistent with previous research (e. g. human and definite referents disfavor null objects), while other results differ (e. g. PAS propositions disfavor null objects). Activation status and anaphora expression are the most significant predictors of null objects in PAS. In particular, highly accessible referents in discourse and anaphoric null objects favored null objects in subsequent clauses. Thus, the results in the present study demonstrate the pivotal role of information structure in object instantiation, furthering the discussion on syntax-discourse interplay phenomena.

Possibility-Based ELECTRE II Method with Uncertain Linguistic Fuzzy Variables

2017 ◽  
Vol 31 (09) ◽  
pp. 1759016 ◽  
Author(s):  
Lidong Wang ◽  
Binquan Liao ◽  
Xiaodong Liu ◽  
Jingxia Liu
Keyword(s):  
Decision Making ◽  
Multiple Attribute Decision Making ◽  
Economic Systems ◽  
Linguistic Variables ◽  
Concordance Index ◽  
Fuzzy Variables ◽  
Numerical Example ◽  
Deviation Index ◽  
Multiple Attribute

Linguistic variables can better approximate the fuzziness of man’s thinking, which are important tools for multiple attribute decision-making problems. This paper establishes the possibility-based ELECTRE II model under the environment of uncertain linguistic fuzzy variables and uncertain weight information. By introducing the degree of possibility to ELECTRE II model, the concordance set, the discordance set and the indifferent set are obtained, respectively. Furthermore, the concordance index is redefined by considering deviation index under the same attribute, by which the strong and weak relationships are constructed, and then the rank of alternatives is obtained. A numerical example about the evaluation of socio-economic systems is employed to illustrate the convenience and applicability of the proposed method.

Adult Chinese as a Second Language Learners' Willingness to Communicate in Chinese: Effects of Cultural, Affective, and Linguistic Variables

2017 ◽  
Vol 120 (3) ◽  
pp. 423-442 ◽  
Author(s):  
Meihua Liu
Keyword(s):  
Second Language ◽  
Length Of Stay ◽  
Language Learners ◽  
Second Language Learners ◽  
Willingness To Communicate ◽  
Anxiety Scale ◽  
Linguistic Variables ◽  
Speaking Anxiety ◽  
Proficiency Level ◽  
Chinese Learning

The present research explored the effects of cultural, affective, and linguistic variables on adult Chinese as a second language learners' willingness to communicate in Chinese. One hundred and sixty-two Chinese as a second language learners from a Chinese university answered the Willingness to Communicate in Chinese Scale, the Intercultural Sensitivity Scale, Chinese Speaking Anxiety Scale, Chinese Learning Motivation Scale, Use of Chinese Profile, as well as the Background Questionnaire. The major findings were as follows: (1) the Willingness to Communicate in Chinese Scales were significantly negatively correlated with Chinese Speaking Anxiety Scale but positively correlated with length of stay in China and (2) Chinese Speaking Anxiety Scale was a powerful negative predictor for the overall willingness to communicate in Chinese and the Willingness to Communicate in Chinese Scales, followed by length of stay in China, Chinese Learning Motivation Scale, interaction attentiveness, and Chinese proficiency level. Apparently, students' willingness to communicate in Chinese is largely determined by their Chinese Speaking Anxiety Scale level and length of stay in China, mediated by other variables such as Chinese proficiency level and intercultural communication sensitivity level.

scholarly journals Variation in Faroese and the development of a spoken standard: In search of corpus evidence

2014 ◽  
Vol 37 (1) ◽  
pp. 87-105 ◽  
Author(s):  
Remco Knooihuizen
Keyword(s):  
Social Change ◽  
Morphological Variation ◽  
Language Change ◽  
Linguistic Variation ◽  
Social Changes ◽  
Linguistic Variables ◽  
Phonological Variation ◽  
Rapid Social Change ◽  
Variationist Sociolinguistics ◽  
Constrained Variation

Although Faroese exhibits extensive linguistic variation and rapid social change, the language is near-uncharted territory in variationist sociolinguistics. This article discusses some recent social changes in Faroese society in connection with language change, focusing in particular on the development of a de facto spoken standard, Central Faroese. Demographic mobility, media and education may be contributing to this development in different ways. Two linguistic variables are analysed as a first step towards uncovering the respective roles of standardisation, dialect levelling and dialect spread as contributing processes in the formation of Central Faroese: morphological variation in -st endings and phonological variation in -ir and -ur endings. The analysis confirms previously described patterns of geographically constrained variation, but no generational or stylistic differences indicative of language change are found, nor are there clear signs that informants use Central Faroese. The results may in part be due to the structure of the corpus used.

scholarly journals Speech Sound Production in 2-Year-Olds Who Are Hard of Hearing

2014 ◽  
Vol 23 (2) ◽  
pp. 91-104 ◽  
Author(s):  
Sophie E. Ambrose ◽  
Lauren M. Unflat Berry ◽  
Elizabeth A. Walker ◽  
Melody Harrison ◽  
Jacob Oleson ◽  
...  
Keyword(s):  
Socioeconomic Status ◽  
Hearing Loss ◽  
Hearing Aids ◽  
Hard Of Hearing ◽  
Sound Production ◽  
Speech Sound ◽  
Linguistic Variables ◽  
Vowel Production ◽  
Severe Hearing Loss ◽  
Children's Speech

Purpose The purpose of the study was to (a) compare the speech sound production abilities of 2-year-old children who are hard of hearing (HH) to children with normal hearing (NH), (b) identify sources of risk for individual children who are HH, and (c) determine whether speech sound production skills at age 2 were predictive of speech sound production skills at age 3. Method Seventy children with bilateral, mild-to-severe hearing loss who use hearing aids and 37 age- and socioeconomic status–matched children with NH participated. Children's speech sound production abilities were assessed at 2 and 3 years of age. Results At age 2, the HH group demonstrated vowel production abilities on par with their NH peers but weaker consonant production abilities. Within the HH group, better outcomes were associated with hearing aid fittings by 6 months of age, hearing loss of less than 45 dB HL, stronger vocabulary scores, and being female. Positive relationships existed between children's speech sound production abilities at 2 and 3 years of age. Conclusion Assessment of early speech sound production abilities in combination with demographic, audiologic, and linguistic variables may be useful in identifying HH children who are at risk for delays in speech sound production.

scholarly journals Extracting Features for the Linguistic Variables of Fuzzy Rules Using Hidden Markov Model

2008 ◽  
Author(s):  
Azizah Suliman ◽  
Md. Nasir Sulaiman ◽  
Mohamed Othman ◽  
Rahmita Wirza ◽  
Theodore E. Simos ◽  
...  
Keyword(s):  
Markov Model ◽  
Hidden Markov Model ◽  
Hidden Markov ◽  
Fuzzy Rules ◽  
Linguistic Variables

scholarly journals A COMPETENCY EVALUATION METHOD OF HUMAN RESOURCES MANAGERS BASED ON MULTI-GRANULARITY LINGUISTIC VARIABLES AND VIKOR METHOD

2012 ◽  
Vol 18 (4) ◽  
pp. 696-710 ◽  
Author(s):  
Peide Liu ◽  
Xingying Wu
Keyword(s):  
Human Resources ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Indicator System ◽  
Entropy Method ◽  
Linguistic Variables ◽  
Vikor Method ◽  
Evaluation Indexes ◽  
Human Resources Managers ◽  
Competency Evaluation

According to the characteristics of human resources managers’ competency and the research of relevant literatures at home and abroad, a competency evaluation method of human resources managers based on multi-granularity linguistic variables and VIKOR method is proposed. Firstly, the evaluation indicator system based on the competency of human resources managers is constructed. Then, by converting the evaluation information of different experts in different granularity to the same granularity by two-semantics, the comprehensive evaluation values can be obtained by integrating information of different experts. Further, the objective weights of the evaluation indexes were determined by the entropy method and an evaluation method were proposed based on the VIKOR method. Finally, an application example is given to illustrate the evaluation procedures of the developed approach and to demonstrate their practicality and effectiveness.

Sign in / Sign up

Export Citation Format

Share Document