Linguistic description of the human gait quality
Engineering Applications of Artificial IntelligencePublished 22 February 2012
Alberto Alvarez-Alvarez, Gracián Triviño
Citations43
SJR quartileQ1
SJR score1.65
SNIP1.89
Generate an AI Snapshot to get a quick, structured summary of this paper.
Study Snapshot
ObjectiveStudy objective
MethodsResearch methodology
PopulationPopulation studied
Sample sizeSample sizes
OutcomesStudy outcomes here
ResultsStudy results comes here
LimitationsResearch study limitations comes here
A concise AI-generated summary of the paper will appear here once you click Generate AI Snapshot.
TL;DR
This paper used the previous work on both, Granular Linguistic Models of Phenomena and Fuzzy Finite State Machines, to create a basic linguistic model of the human gait and has used this model to generate a human friendly linguistic description of this phenomenon focused on the assessment of the gait quality.
Abstract
The human gait is a complex phenomenon that is repeated in time following an approximated pattern. Using a three-axial accelerometer fixed in the waist, we can obtain a temporal series of measures that contains a numerical description of this phenomenon. Nevertheless, even when we represent graphically these data, it is difficult to interpret them due to the complexity of the phenomenon and the huge amount of available data. This paper describes our research on designing a computational system able to generate linguistic descriptions of this type of quasi-periodic complex phenomena. We used our previous work on both, Granular Linguistic Models of Phenomena and Fuzzy Finite State Machines, to create a basic linguistic model of the human gait. We have used this model to generate a human friendly linguistic description of this phenomenon focused on the assessment of the gait quality. We include a practical application where we analyze the gait quality of healthy individuals and people with lesions in their limbs.
Keywords
Computer Science
Information SciencesThe concept of a linguistic variable and its application to approximate reasoning-III
12,148 Citations1975L. A. Zadeh
Much of what constitutes the core of scientific knowledge may be regarded as a reservoir of concepts and techniques which can be drawn upon to construct mathematical models of various types of systems and thereby yield quantitative information concerning their behavior.
Information SciencesThe concept of a linguistic variable and its application to approximate reasoning—I
12,036 Citations1975Lotfi A. Zadeh
It is shown that probabilities, too, can be treated as linguistic variables with values such as likely, very likely, unlikely, etc.
IEEE Transactions on Systems Man and CyberneticsOn ordered weighted averaging aggregation operators in multicriteria decisionmaking
7,125 Citations1988Ronald R. Yager
A type of operator for aggregation called an ordered weighted aggregation (OWA) operator is introduced and its performance is found to be between those obtained using the AND operator and the OR operator.
JAMAGait Analysis: Normal and Pathological Function
3,913 Citations1992Jacquelin Perry, Judith M. Burnfield +1 more
Fuzzy Sets and SystemsToward a theory of fuzzy information granulation and its centrality in human reasoning and fuzzy logic
2,875 Citations1997Lotfi A. Zadeh
M Modes of information granulation (IG) in which the granules are crisp (c-granular) play important roles in a wide variety of methods, approaches and techniques, but this does not reflect the fact that in almost all of human reasoning and concept formation thegranules are fuzzy (f- Granular).
Information SciencesThe concept of a linguistic variable and its application to approximate reasoning—II
2,509 Citations1975Lotfi A. Zadeh
The nonrestricted nonfuzzy variable u constitutes the base variable for X and R(X;u) is a fuzzy subset of U which represents a fuzzy restriction on the values of u imposed by X.
From Computing with Numbers to Computing with Words — from Manipulation of Measurements to Manipulation of Perceptions
1,038 Citations1999L. A. Zadeh
IEEE Transactions on Circuits and Systems I Fundamental Theory and ApplicationsFrom computing with numbers to computing with words. From manipulation of measurements to manipulation of perceptions
1,036 Citations1999L. A. ZADEH
Information SciencesA review of fuzzy set aggregation connectives
925 Citations1985Didier Dubois, Henri Prade
An extensive survey on fuzzy set-theoretic operations is provided, and the relevance of the theory of functional equations in the axiomatical construction of classes of such operations and the derivation of functional representations is emphasized.
IEEE Transactions on Biomedical EngineeringAmbulatory system for human motion analysis using a kinematic sensor: monitoring of daily physical activity in the elderly
766 Citations2003Bijan Najafi, Kamiar Aminian +4 more
The ambulatory system showed a very high accuracy (> 99%) in identifying the 62 transfers or rolling out of bed, as well as 144 different posture changes to the back, ventral, right and left sides, in both first and second studies.
IEEE SpectrumThe fast Fourier transform
575 Citations1967E. Oran Brigham, R. E. Morrow
A computer algorithm that computes the discrete Fourier transform much faster than other algorithms, is explained and examples and detailed procedures are provided to assist the reader in learning how to use the algorithm.
WORLD SCIENTIFIC eBooksAssociative Functions: Triangular Norms and Copulas
438 Citations2006Claudi Alsina, Maurice Frank +1 more
This book presents the foundations of the subject of associative functions on real intervals and brings together results that have been widely scattered in the literature and adds much new material.
Journal of The Royal Society InterfaceKinematic measures for assessing gait stability in elderly individuals: a systematic review
397 Citations2011Dennis Hamacher, Navrag B. Singh +3 more
Information Processing & ManagementSimilarity measures in scientometric research: The Jaccard index versus Salton's cosine formula
373 Citations1989Lieve Hamers, Yves Hemeryck +5 more
It is shown that in most practical cases Salton's cosine formula yields a numerical value that is twice Jaccard's index.
Gait & PostureEfficacy of clinical gait analysis: A systematic review
299 Citations2011Tishya A.L. Wren, George E. Gorton +2 more
The existing evidence indicates efficacy at the higher levels of patient outcomes and societal cost-effectiveness, but this evidence is more sparse and does not include any randomized controlled trials.
IEEE Computational Intelligence MagazineToward Human Level Machine Intelligence - Is It Achievable? The Need for a Paradigm Shift
164 Citations2008Lotfi Zadeh
IEEE Transactions on Information Technology in BiomedicineComputational Intelligence in Gait Research: A Perspective on Current Applications and Future Challenges
151 Citations2009Daniel Lai, Rezaul Begg +1 more
Current signal processing and CI methodologies followed by gait applications ranging from normal gait studies and disorder detection to artificial gait simulation are surveyed to result in more cost-effective, efficient, and easy-to-use systems, which would address global shortages in medical personnel and rising medical costs.
Engineering Applications of Artificial IntelligenceModel-based human gait recognition using leg and arm movements
150 Citations2010Faezeh Tafazzoli, Reza Safabakhsh
A model-based approach for human gait recognition, which is based on analyzing the leg and arm movements, and the main focus of this paper is on increasing the discrimination capability of the model through extra features produced from the motion of the arms.
Computational Intelligence in Biomedical Engineering
93 Citations2007Rezaul Begg, Daniel Lai +1 more
Computational Intelligence in Bioengineering provides a comprehensive account of the recent research efforts in this emerging area and brings together cutting-edge research and applications of computational intelligence in a single volume.
IEEE Transactions on Biomedical EngineeringA new measure of movement symmetry in early Parkinson's disease patients using symbolic processing of inertial sensor data
88 Citations2011Anita Sant’Anna, A. Salarian +1 more
A novel symbol based symmetry index calculated from inertial sensor data is introduced, explained, evaluated, and compared to six other symmetry measures and suggests that the proposed symmetry index is appropriate for this particular group of patients.
IEEE Transactions on Fuzzy SystemsHuman Gait Modeling Using a Genetic Fuzzy Finite State Machine
81 Citations2011Alberto Alvarez-Alvarez, Gracián Triviño +1 more
An automatic method to learn the model parameters that are based on the hybridization of fuzzy finite state machines and genetic algorithms leading to genetic fuzzy finiteState machines is presented.
Engineering Applications of Artificial IntelligenceApplication of wearable sensors for human gait analysis using fuzzy computational algorithm
63 Citations2011Murad Alaqtash, Huiying Yu +3 more
A wearable inertial sensor system for the acquisition of gait features provides a quantitative assessment of mobility state of the impaired subject and may be helpful to the clinician in the identification of pathological gait impairments, prescribe treatment, and assess the improvements in response to therapeutic intervention.
Pattern RecognitionApplication of the computational theory of perceptions to human gait pattern recognition
61 Citations2010Gracián Triviño, Alberto Alvarez-Alvarez +1 more
This model differs significantly from others, e.g., based on machine learning techniques, because it uses a linguistic model to represent the subjective designer's perceptions of the human gait process.
Medical Engineering & PhysicsA fuzzy decision tree-based SVM classifier for assessing osteoarthritis severity using ground reaction force measurements
36 Citations2010Serafeim Moustakidis, John B. Theocharis +1 more
A novel fuzzy decision tree-based SVM (FDT-SVM) classifier is proposed in this paper, to distinguish between asymptotic and osteoarthritis knee gait patterns and to investigate OA severity using 3-D ground reaction force (GRF) measurements.
Body posture recognition by means of a genetic fuzzy finite state machine
33 Citations2011Alberto Alvarez-Alvarez, Gracián Triviño +1 more
A genetic fuzzy finite state machine is proposed for body posture recognition as a basis for the detection of user's behavior in real-world application.
Linguistic description of traffic in a roundabout
30 Citations2010Gracián Triviño, Ángel Sánchez +4 more
This paper builds a model of the observed phenomenon that allows us to interpret the content of images using techniques from Computer Vision and ideas from the Zadeh's Computational Theory of Perceptions to generate linguistic descriptions from images captured by a video camera.
Combining Semantic Web technologies and Computational Theory of Perceptions for text generation in financial analysis
29 Citations2010Sheila Mendez-Nunez, Gracián Triviño
This work proposes a first approach to a computational framework to generate short reports that consist of few but meaningful Natural Language sentences designed to solve the user needs in a specific context of meaning defined with the help of an ontology.
Human activity recognition applying computational intelligence techniques for fusing information related to WiFi positioning and body posture
18 Citations2010Alberto Alvarez-Alvarez, José M. Alonso +5 more
This work presents a general framework for people indoor activity recognition that relies on the WiFi access points widely available in most public and private buildings and a Fuzzy Finite State Machine (FFSM) for human body posture recognition.
Linguistic reporting of driver behavior: Summary and event description
12 Citations2011Luka Eciolaza, Gracián Triviño
This application paper deals with the development of a computational system capable of automatically generating linguistic descriptions of driving activity from vehicle simulator data with a focus on granular linguistic models of phenomena.
Automatic linguistic description about relevant features of the Mars' surface
12 Citations2011Alberto Alvarez-Alvarez, Daniel Sanchez-Valdes +1 more
A computational application able to generate simple linguistic descriptions of circular structures on the Mars' surface as a result of research on Computational Theory of Perceptions is described.