Toward Humanoid Robots: The Role of Fuzzy Sets

2021 ◽  
Keyword(s):  
Fuzzy Sets ◽  
Humanoid Robots

ZMP: A REVIEW OF SOME BASIC MISUNDERSTANDINGS

2006 ◽  
Vol 03 (02) ◽  
pp. 153-175 ◽  
Author(s):  
MIOMIR VUKOBRATOVIĆ ◽  
BRANISLAV BOROVAC ◽  
VELJKO POTKONJAK
Keyword(s):  
Degrees Of Freedom ◽  
Dynamic Balance ◽  
Decisive Role ◽  
Humanoid Robots ◽  
Ground Contact ◽  
Science And Engineering ◽  
Theoretical Assumptions ◽  
Zero Moment ◽  
Basic Characteristics

One of basic characteristics of the regular bipedal walk of humanoid robots is the maintenance of their dynamic balance during the walk, whereby a decisive role is played by the unpowered degrees of freedom arising at the foot–ground contact. Hence, the role of the Zero-Moment Point (ZMP) as an indicator of dynamic balance is indispensable. This paper gives a detailed discussion of some basic theoretical assumptions related to the ZMP in the light of imprecise, and even incorrect, interpretations that have recently appeared, and which have led to some erroneous conclusions. Examples are given to show some erroneous basic attitudes and the genesis of some of them is indicated. It is also pointed out that in the domain of bipedal walk there are still notions that are not clearly defined and their meanings differentiated in some related branches of science and engineering. One of the examples is dynamic balance and stability, which are often used interchangeably.

scholarly journals Novel Parameterized Distance Measures on Hesitant Fuzzy Sets with Credibility Degree and Their Application in Decision-Making

Symmetry ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 557 ◽  
Author(s):  
Jiaru Li ◽  
Fangwei Zhang ◽  
Qiang Li ◽  
Jing Sun ◽  
Janney Yee ◽  
...  
Keyword(s):  
Decision Making ◽  
Fuzzy Sets ◽  
Cardinal Number ◽  
Decision Makers ◽  
Distance Measures ◽  
Hesitant Fuzzy Set ◽  
Hesitant Fuzzy Sets ◽  
The Subject ◽  
The Relationship

The subject of this study is to explore the role of cardinality of hesitant fuzzy element (HFE) in distance measures on hesitant fuzzy sets (HFSs). Firstly, three parameters, i.e., credibility factor, conservative factor, and a risk factor are introduced, thereafter, a series of novel distance measures on HFSs are proposed using these three parameters. These newly proposed distance measures handle the relationship between the cardinal number and the element values of hesitant fuzzy set well, and are suitable to combine subjective and objective decision-making information. When using these functions, decision makers with different risk preferences are allowed to give different values for these three parameters. In particular, this study transfers the hesitance degree index to a credibility of the values in HFEs, which is consistent with people’s intuition. Finally, the practicability of the newly proposed distance measures is verified by two examples.

The effects of multiculturalism and mechanistic disdain for robots in human-to-robot communication scenarios

2013 ◽  
Vol 14 (1) ◽  
pp. 81-106 ◽  
Author(s):  
Hyun-Hee Heo ◽  
Min-Sun Kim
Keyword(s):  
Structural Equation ◽  
Online Survey ◽  
Cultural Orientation ◽  
Humanoid Robots ◽  
Two Dimensions ◽  
Equation Modeling ◽  
Mediating Role ◽  
Computer Based ◽  
Robot Communication

This study investigates the effects of cultural orientation and the degree of disdain for robots on the preferred conversational styles in human-to-robot interactions. 203 participants self-reported on questionnaires through a computer-based online survey. The two requesting situations were intended to simulate the participants’ interactions with humanoid social robots through an Internet video-phone medium of communication. Structural equation modeling was performed to examine the mediating role of mechanistic disdain between multicultural orientation and conversational constraints. The findings reveal that between the two dimensions of multicultural orientation, only open-mindedness inversely influences mechanistic disdain. Mechanistic disdain, in turn, negatively affects three face-related conversational constraints, thereby leading to a lesser concern for robots’ feelings, for minimizing impositions on robots, and for avoiding robots’ negative evaluations. The implications of our findings on humans’ relations with virtual robot entities and on the future development of humanoid robots are discussed.

scholarly journals How attitudes generated by humanoid robots shape human brain activity

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
G. Di Cesare ◽  
F. Vannucci ◽  
F. Rea ◽  
A. Sciutti ◽  
G. Sandini
Keyword(s):  
Human Brain ◽  
Humanoid Robot ◽  
Brain Activity ◽  
Negative Attitude ◽  
Humanoid Robots ◽  
Bold Signal ◽  
Future Perspectives ◽  
Soft Or ◽  
Forms Of Vitality

Abstract During interpersonal interactions, people perform actions with different forms of vitality, communicating their positive or negative attitude toward others. For example, a handshake can be “soft” or “vigorous”, a caress can be ‘kind’ or ‘rushed’. While previous studies have shown that the dorso-central insula is a key area for the processing of human vitality forms, there is no information on the perception of vitality forms generated by a humanoid robot. In this study, two fMRI experiments were conducted in order to investigate whether and how the observation of actions generated by a humanoid robot (iCub) with low and fast velocities (Study 1) or replicating gentle and rude human forms (Study 2) may convey vitality forms eliciting the activation of the dorso-central insula. These studies showed that the observation of robotic actions, generated with low and high velocities, resulted in activation of the parieto-frontal circuit typically involved in the recognition and the execution of human actions but not of the insula (Study 1). Most interestingly, the observation of robotic actions, generated by replicating gentle and rude human vitality forms, produced a BOLD signal increase in the dorso-central insula (Study 2). In conclusion, these data highlight the selective role of dorso-central insula in the processing of vitality forms opening future perspectives on the perception and understanding of actions performed by humanoid robots.

Role of Fuzzy Sets in Power System State Estimation

ENERGYO ◽  
2018 ◽  
Author(s):  
Mohammad Shahidehpour ◽  
Muhammad Marwali
Keyword(s):  
Power System ◽  
Fuzzy Sets ◽  
State Estimation ◽  
System State ◽  
Power System State Estimation

The Design of Questionnaire of Students' Perceived Gender and Role of Humanoid Robots in Education

2017 ◽  
Author(s):  
Mojibola Abioye ◽  
Maiga Chang ◽  
Shi-Jer Lou ◽  
Ru-Chu Shih ◽  
Tzu-Chien Liu ◽  
...  
Keyword(s):  
Humanoid Robots

The role of fuzzy sets in civil engineering

1979 ◽  
Vol 2 (4) ◽  
pp. 267-278 ◽  
Author(s):  
D.I. Blockley
Keyword(s):  
Fuzzy Sets ◽  
Civil Engineering

scholarly journals Fuzzy functions: a fuzzy extension of the category SET and some related categories

2000 ◽  
Vol 1 (1) ◽  
pp. 115 ◽  
Author(s):  
Ulrich Höhle ◽  
Hans-E. Porst ◽  
Alexander P. Sostak
Keyword(s):  
Fuzzy Sets ◽  
The Other ◽  
Basic Properties ◽  
And Topology ◽  
Other Hand

<p>In research Works where fuzzy sets are used, mostly certain usual functions are taken as morphisms. On the other hand, the aim of this paper is to fuzzify the concept of a function itself. Namely, a certain class of L-relations F : X x Y -&gt; L is distinguished which could be considered as fuzzy functions from an L-valued set (X,Ex) to an L-valued set (Y,Ey). We study basic properties of these functions, consider some properties of the corresponding category of L-valued sets and fuzzy functions as well as briefly describe some categories related to algebra and topology with fuzzy functions in the role of morphisms.</p>

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