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Journal articles on the topic 'The distance and the Kemeny median'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Nikitin, B. E., M. N. Ivliev, K. V. Chekudaev, E. S. Akatov, Y. V. Bugaev, and I. I. Vorona. "The organizations management multi-criteria objects aggregate rating construction." Proceedings of the Voronezh State University of Engineering Technologies 83, no. 2 (2021): 251–58. http://dx.doi.org/10.20914/2310-1202-2021-2-251-258.

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The article deals with the higher education institutions national aggregate rating constructing problem. This task is relevant in terms of improving management processes in educational organizations. This problem is formulated as a collective choice problem. Proposed to use voting in small groups as aggregation procedures, which satisfies the Condorcet principle. Three collective choice rules description is given in the paper. Obtained on the Bord, Copeland and Kemeny basis procedure salternatives final orderings stability is illustrated by concrete examples. The empirical mean is considered a

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Khubaev, G. "Methods of forming the agreed collective choice in the expertise process (on an example of ranking methods of solving complex problems)." Bulletin of Science and Practice, no. 7 (July 15, 2017): 59–77. https://doi.org/10.5281/zenodo.826483.

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The methods of forming a collective choice in the ordering of expert solutions to complex problems. It is shown that the use of methods increases the reliability of the evaluation. Experts: don’t know who participated in the survey; do not know who decided which; don't know who and what gave the rationale for the decision and may not know about the true purpose of the organizers of the expert survey. At the same time experts can justify their answers and receive as a result of simulation of the statistical characteristics of the search target.

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3

Can, Burak, and Ton Storcken. "A re-characterization of the Kemeny distance." Journal of Mathematical Economics 79 (December 2018): 112–16. http://dx.doi.org/10.1016/j.jmateco.2018.04.007.

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Kalach, A. V., Yu V. Bugaev, and B. E. Nikitin. "METHODS OF SEARCHING FOR THE KEMENY MEDIAN FOR NON-STRICT AND PARTIAL ORDERINGS OF ALTERNATIVES." Bulletin of the South Ural State University series "Mathematics. Mechanics. Physics" 16, no. 1 (2024): 13–22. https://doi.org/10.14529/mmph240102.

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This article describes an approximate algorithm for finding the Kemeny median for a set of non-strict orderings of alternatives. The study was carried out for choosing alternatives involving making an informed decision on the completion of the analysis and generalization of incoming information and reaching a threshold value for the decision criterion. The article offers a justification for choosing solutions to multi-criteria tasks in planning and management from an existing set of alternatives using expert assessments. Two algorithms for searching for the Kemeny median are proposed in the pr

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Kosareva, Natalja, Edmundas Kazimieras Zavadskas, Aleksandras Krylovas, and Stanislav Dadelo. "Personnel Ranking and Selection Problem Solution by Application of KEMIRA Method." International Journal of Computers Communications & Control 11, no. 1 (2015): 51. http://dx.doi.org/10.15837/ijccc.2016.1.2159.

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In this study KEmeny Median Indicator Rank Accordance (KEMIRA) method is applied for solving personnel ranking and selection problem when there are two subgroups of evaluating criteria. Each stage of KEMIRA method illustrated with the examples. In the first stage Kemeny median method is applied to generalize experts’ opinions for setting criteria priorities. Medians were calculated for all experts opinions generalization and for experts majority opinions generalization. In the second stage criteria weights calculated and alternatives ranking accomplished simultaneously by Indicator Rank Accord

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Krylovas, Aleksandras, Edmundas Kazimieras Zavadskas, Natalja Kosareva, and Stanislav Dadelo. "New KEMIRA Method for Determining Criteria Priority and Weights in Solving MCDM Problem." International Journal of Information Technology & Decision Making 13, no. 06 (2014): 1119–33. http://dx.doi.org/10.1142/s0219622014500825.

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This study presents a new KEmeny Median Indicator Ranks Accordance (KEMIRA) method for determining criteria priority and selection criteria weights in the case of two separate groups of criteria for solving multiple criteria decision making (MCDM) problem. Kemeny median method is proposed to generalize experts' opinion. Medians are calculated applying three different measure functions. Criteria weights are calculated and alternatives ranking accomplished by solving optimization problem — minimization of ranks discrepancy function calculated for two groups of criteria. A numerical example for s

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Shin, Min-Ji, Tarmo Veskioja, Tiina Titma, and Ago Samoson. "Kemeny–Snell Distance in Nuclear Magnetic Resonance Metabolomics." Applied Magnetic Resonance 51, no. 12 (2020): 1637–45. http://dx.doi.org/10.1007/s00723-020-01282-2.

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Zhurakovska, Oksana, and Illa Kochubey. "Use of Kemeny median in the algorithm of forming recommendation." System research and information technologies, no. 4 (December 29, 2020): 59–69. http://dx.doi.org/10.20535/srit.2308-8893.2020.4.05.

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The relevant nowadays question of development of the algorithmic support of recommender systems is considered. The article is devoted to the solution of the problem of forming recommendations to new users, which is based on the ideas of transition from the matrix "user-object" to the ranking of objects and the formation of recommendations to the user of the active cluster based on the construction of the resulting ranking, which is a Kemeny median on a set of rankings. The choice of Kemeny median as the resulting ranking and the choice of algorithm for its construction are justified. To reduce

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Azzini, Ivano, and Giuseppe Munda. "A new approach for identifying the Kemeny median ranking." European Journal of Operational Research 281, no. 2 (2020): 388–401. http://dx.doi.org/10.1016/j.ejor.2019.08.033.

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Dvoenko, S. D. "A Developing of the Kemeny Median: New Types and Algorithms." Pattern Recognition and Image Analysis 31, no. 3 (2021): 376–80. http://dx.doi.org/10.1134/s105466182103007x.

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11

Faliszewski, Piotr, Piotr Skowron, Arkadii Slinko, Stanisław Szufa, and Nimrod Talmon. "How Similar Are Two Elections?" Proceedings of the AAAI Conference on Artificial Intelligence 33 (July 17, 2019): 1909–16. http://dx.doi.org/10.1609/aaai.v33i01.33011909.

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We introduce the ELECTION ISOMORPHISM problem and a family of its approximate variants, which we refer to as dISOMORPHISM DISTANCE (d-ID) problems (where d is a metric between preference orders). We show that ELECTION ISOMORPHISM is polynomial-time solvable, and that the d-ISOMORPHISM DISTANCE problems generalize various classic rank-aggregation methods (e.g., those of Kemeny and Litvak). We establish the complexity of our problems (including their inapproximability) and provide initial experiments regarding the ability to solve them in practice.

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D'Ambrosio, A., and W.J.A. Heiser. "A distribution-free soft-clustering method for preference rankings." Behaviormetrika 46 (October 1, 2019): 333–51. https://doi.org/10.1007/s41237-018-0069-5.

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Typically, ranking data consist of a set of individuals, or judges, who have ordered a set of items—or objects—according to their overall preference or some pre-specified criterion. When each judge has expressed his or her preferences according to his own best judgment, such data are characterized by systematic individual differences. In the literature, several approaches have been proposed to decompose heterogeneous populations of judges into a defined number of homogeneous groups. Often, these approaches work by assuming that the ranking process is governed by some distance-based

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D’Ambrosio, Antonio, Giulio Mazzeo, Carmela Iorio, and Roberta Siciliano. "A differential evolution algorithm for finding the median ranking under the Kemeny axiomatic approach." Computers & Operations Research 82 (June 2017): 126–38. http://dx.doi.org/10.1016/j.cor.2017.01.017.

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Elkind, Edith, Piotr Faliszewski, and Arkadii Slinko. "Good Rationalizations of Voting Rules." Proceedings of the AAAI Conference on Artificial Intelligence 24, no. 1 (2010): 774–79. http://dx.doi.org/10.1609/aaai.v24i1.7607.

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We explore the relationship between two approaches to rationalizing voting rules: the maximum likelihood estimation (MLE) framework originally suggested by Condorcet and recently studied by Conitzer, Rognlie, and Xia, and the distance rationalizability (DR) framework of Elkind, Faliszewski, and Slinko. The former views voting as an attempt to reconstruct the correct ordering of the candidates given noisy estimates (i.e., votes), while the latter explains voting as search for the nearest consensus outcome. We provide conditions under which an MLE interpretation of a voting rule coincides with i

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Manusov, Vadim, Aysulu Kalanakova, Javod Ahyoev, Inga Zicmane, Seepana Praveenkumar, and Murodbek Safaraliev. "Analysis of Mathematical Methods of Integral Expert Evaluation for Predictive Diagnostics of Technical Systems Based on the Kemeny Median." Inventions 8, no. 1 (2023): 28. http://dx.doi.org/10.3390/inventions8010028.

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At present, diagnostics of the current technical condition of high-voltage power equipment in power systems have become more important. This allows the estimation of the real technical condition of power equipment more accurately with its removal into repair based on the results of the diagnostics. This paper presents the comparative analysis of expert evaluations with the use of the arithmetical mean and median values of expert evaluations. In this case, individual expert opinions, influenced by a level of competence, correspond to each other in a different manner, depending on the applied ap

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Jiebo Luo, S. P. Etz, R. T. Gray, and A. Singhal. "Normalized Kemeny and Snell distance: a novel metric for quantitative evaluation of rank-order similarity of images." IEEE Transactions on Pattern Analysis and Machine Intelligence 24, no. 8 (2002): 1147–51. http://dx.doi.org/10.1109/tpami.2002.1023811.

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Esmaeili, Seyed A., Darshan Chakrabarti, Hayley Grape, and Brian Brubach. "Implications of Distance over Redistricting Maps: Central and Outlier Maps." Proceedings of the AAAI Conference on Artificial Intelligence 38, no. 9 (2024): 9679–87. http://dx.doi.org/10.1609/aaai.v38i9.28825.

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In representative democracy, a redistricting map is chosen to partition an electorate into districts which each elects a representative. A valid redistricting map must satisfy a collection of constraints such as being compact, contiguous, and of almost-equal population. However, these constraints are loose enough to enable an enormous ensemble of valid redistricting maps. This enables a partisan legislature to gerrymander by choosing a map which unfairly favors it. In this paper, we introduce an interpretable and tractable distance measure over redistricting maps which does not use election re

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Amodio, S., A. D’Ambrosio, and R. Siciliano. "Accurate algorithms for identifying the median ranking when dealing with weak and partial rankings under the Kemeny axiomatic approach." European Journal of Operational Research 249, no. 2 (2016): 667–76. http://dx.doi.org/10.1016/j.ejor.2015.08.048.

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19

Pravas, K., and A. Vijayakumar. "Convex median and anti-median at prescribed distance." Journal of Combinatorial Optimization 33, no. 3 (2016): 1021–29. http://dx.doi.org/10.1007/s10878-016-0022-z.

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20

Simić, Nikola, Marjan Milenkov, Vladimir Milovanović, Vlada Sokolović, Pavel Foltin, and Balaž Takšas. "Logistics support planning model in the conditions of limited resources." Vojnotehnicki glasnik 70, no. 1 (2022): 109–39. http://dx.doi.org/10.5937/vojtehg70-33079.

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Introduction/purpose: The paper presents a model of logistics support planning in the conditions of limited logistic resources based on the prioritization of customer requirements and resource allocation. Decisionmakers play a crucial role in the efficient and equitable allocation of resources as they prioritize among different user requirements. Methods: Requirement prioritization techniques that use nominal scale, ordinal scale, and ratio scale, and five methods for converting ranks into weighting coefficients have been applied to determine the degree of significance of user requirements. Th

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Toktaş, Pelin, and Gülin Feryal Can. "Stochastic KEMIRA-M Approach with Consistent Weightings." International Journal of Information Technology & Decision Making 18, no. 03 (2019): 793–831. http://dx.doi.org/10.1142/s0219622019500123.

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This study proposes an advanced Modified KEmeny Median Indicator Rank Accordance (KEMIRA-M) approach based on stochastic evaluation process considering consistent weights to improve effective usage of KEMIRA-M. In the proposed approach, tasks related to the decision issue are performed by decision makers to ensure the understanding sufficiency of alternatives in terms of criteria more clearly. The weighting procedure of Analytic Hierarchy Process (AHP) is implemented in a stochastic manner benefited from discrete uniform distribution to provide obtaining consistent criteria weights considering

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Freedman, David S., Jessica G. Woo, Cynthia L. Ogden, Ji H. Xu, and Tim J. Cole. "Distance and percentage distance from median BMI as alternatives to BMI z score." British Journal of Nutrition 124, no. 5 (2019): 493–500. http://dx.doi.org/10.1017/s0007114519002046.

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AbstractBMI z (BMIz) score based on the Centers for Disease Control and Prevention growth charts is widely used, but it is inaccurate above the 97th percentile. We explored the performance of alternative metrics based on the absolute distance or % distance of a child’s BMI from the median BMI for sex and age. We used longitudinal data from 5628 children who were first examined <12 years to compare the tracking of three BMI metrics: distance from median, % distance from median and % distance from median on a log scale. We also explored the effects of adjusting these metrics for age differenc

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23

Park, Dongryeon. "Robustness Weight by Weighted Median Distance." Computational Statistics 19, no. 3 (2004): 367–83. http://dx.doi.org/10.1007/bf03372102.

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24

Kamiyama, Naoyuki. "The Distance-Constrained Matroid Median Problem." Algorithmica 82, no. 7 (2020): 2087–106. http://dx.doi.org/10.1007/s00453-020-00688-5.

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Tao, Zhuolin, Qingjing Zheng, and Hui Kong. "A Modified Gravity p-Median Model for Optimizing Facility Locations." Journal of Systems Science and Information 6, no. 5 (2018): 421–34. http://dx.doi.org/10.21078/jssi-2018-421-14.

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AbstractThe gravityp-median model is an important improvement to the widely-usedp-median model. However, there is still a debate on its validity in empirical applications. Previous studies even doubt the significance of the gravityp-median model. Using a case study of tertiary hospitals in Shenzhen, China, this study re-examines the difference between the gravityp-median model with thep-median model, by decomposing the difference between the two models into gravity rule and variant attraction. This study also proposes a modified gravityp-median model by incorporating a distance threshold. The

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Ang, Celina, Alexandra N. Gewirtz, Joanne F. Chou, Marinela Capanu, Efsevia Vakiani, and Nancy E. Kemeny. "Impact of KRAS on outcomes of patients with unresectable colorectal liver metastases (CRLM)." Journal of Clinical Oncology 32, no. 3_suppl (2014): 510. http://dx.doi.org/10.1200/jco.2014.32.3_suppl.510.

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510 Background: In patients with resected CRLM, mutant (MUT) KRAS may confer a worse prognosis than wild-type (WT) KRAS (Karagkounis et al., ASCO 2012, abs 3616; Kemeny et al., ASCO 2013, abs 3609). We analyzed the impact of KRAS on the outcomes of patients with unresectable CRLM treated with hepatic arterial infusion (HAI) + systemic chemotherapy. Methods: Median overall survival (OS) and progression-free survival (PFS) were estimated by Kaplan Meier methods. The log rank test was used to examine the association of patient demographics and disease-related factors including KRAS mutation statu

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Shen, Mengjiao, and Peide Liu. "Risk Assessment of Logistics Enterprises Using FMEA Under Free Double Hierarchy Hesitant Fuzzy Linguistic Environments." International Journal of Information Technology & Decision Making 20, no. 04 (2021): 1221–59. http://dx.doi.org/10.1142/s0219622021500218.

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Failure Mode and Effects Analysis (FMEA) is an effective tool for prioritization of the failures by identifying and eliminating potential risks, free double hierarchy hesitant fuzzy linguistic term set (FDHHFLTS) can describe the hesitation more accurately and reasonably by adding the free second hierarchy hesitant fuzzy linguistic terms, and multiattribute decision-making (MADM) methods have advantages in ranking and selecting different alternatives. By considering the advantages of MADM methods and FMEA model, in this paper, we propose a novel model to evaluate the risk failure modes (FMs) u

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Jin, Lianghai. "Improved adaptive spatial distance-weighted median filter." Optical Engineering 46, no. 3 (2007): 037003. http://dx.doi.org/10.1117/1.2713400.

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Segura, Rossana Lazcano, Santhoshi Krishnan, Morgan Oneka, et al. "547 Identification of the immune landscape in penile squamous cell carcinoma using multiplex immunofluorescence and spatial image analysis." Journal for ImmunoTherapy of Cancer 8, Suppl 3 (2020): A583—A584. http://dx.doi.org/10.1136/jitc-2020-sitc2020.0547.

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BackgroundPenile squamous cell carcinoma (PSCC) is rare in the US accounting for 0.7% of the total cancer incidence. Around 50% of PSCC cases are associated with HPV infection and between 40–60% have high PD-L1 expression. The identification of the immune landscape in PSCC using the spatial proximity between tumor cells and immune phenotypes has not been described yet.MethodsWe performed multiplex immunofluorescence (mIF) on 54 formalin-fixed, paraffin-embedded tissue sections of PSCC. The staining was performed with the opal-7 kit (Akoya/PerkinElmer) in the Leica Bond RX autostainer using 7 m

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Marchand, Bertrand, Yoann Anselmetti, Manuel Lafond, and Aïda Ouangraoua. "Median and small parsimony problems on RNA trees." Bioinformatics 40, Supplement_1 (2024): i237—i246. http://dx.doi.org/10.1093/bioinformatics/btae229.

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Abstract Motivation Noncoding RNAs (ncRNAs) express their functions by adopting molecular structures. Specifically, RNA secondary structures serve as a relatively stable intermediate step before tertiary structures, offering a reliable signature of molecular function. Consequently, within an RNA functional family, secondary structures are generally more evolutionarily conserved than sequences. Conversely, homologous RNA families grouped within an RNA clan share ancestors but typically exhibit structural differences. Inferring the evolution of RNA structures within RNA families and clans is cru

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Rackers, Nicholas, Sofia Splawska, and Bharat Ratra. "Median Statistics Estimate of the Distance to M87." Publications of the Astronomical Society of the Pacific 136, no. 2 (2024): 024101. http://dx.doi.org/10.1088/1538-3873/ad220e.

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Abstract de Grijs & Bono compiled 211 independent measurements of the distance to galaxy M87 in the Virgo cluster from 15 different tracers and reported 31.03 ± 0.14 mag as the arithmetic mean of a subset of this compilation as the best estimate of the distance. We compute three different central estimates—the arithmetic mean, weighted mean, and the median—and corresponding statistical uncertainty for the full data set as well as three sub-compilations. We find that for all three central estimates the error distributions show that the data sets are significantly non-Gaussian. As a result,

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Nieminen, Juhani. "Distance center and centroid of a median graph." Journal of the Franklin Institute 323, no. 1 (1987): 89–94. http://dx.doi.org/10.1016/0016-0032(87)90042-1.

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Brimberg, Jack, Robert Schieweck, and Anita Schöbel. "Locating a median line with partial coverage distance." Journal of Global Optimization 62, no. 2 (2014): 371–89. http://dx.doi.org/10.1007/s10898-014-0239-2.

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Kantacarini, Tania, Dyah Erny Herwindiati, and Janson Hendryli. "KINERJA METODE MAHALANOBIS DISTANCE YANG DIBENTUK DARI DUA UKURAN PUSAT DAN DUA DISPERSI MULTIVARIAT (UNTUK UKURAN SIMILARITAS KLASIFIKASI IMAGE)." Jurnal Ilmu Komputer dan Sistem Informasi 9, no. 1 (2021): 248. http://dx.doi.org/10.24912/jiksi.v9i1.12667.

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Distance is a space that connects two points or two locations which can be calculated by length and time. Distance is used to measure the similarity of two objects (for example, an image object). An image can be considered to be similar to another image if the similarity size value is small. On the contrary, if the value of the similarity distance between the training object and the object being tested is large, the object can be said to be different or not. In this design, the image classification of Lakes, Forests and Settlements will be carried out by taking the Color feature using the Colo

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Leicht, P., J. Beck Mikkelsen, and C. Falck Larsen. "Scapholunate Distance in Children." Acta Radiologica 37, no. 3P2 (1996): 625–26. http://dx.doi.org/10.1177/02841851960373p241.

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Purpose: To measure the scapholunate distance in normal wrists in a child population. Material and Methods: In 79 children with unilateral wrist trauma boths wrists were radiographed in p.a. and lateral views. Results: The median scapholunate distance ranged from 9 mm in the 7-year-old to 3 mm in the 15-year-old children. Baseline values are presented.

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Bowman, Jeff. "Is dispersal distance of birds proportional to territory size?" Canadian Journal of Zoology 81, no. 2 (2003): 195–202. http://dx.doi.org/10.1139/z02-237.

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Recent research has demonstrated that dispersal distance and the square root of home-range size covary proportionately across mammal species. I tested whether these findings could be generalized to another taxon. Breeding territories of some bird species are analogous to mammalian home ranges, so I tested whether dispersal distance and territory size in these birds covaried and were proportional. Variables were log10-transformed before analysis. When considered independently of body mass, median natal dispersal distance and breeding territory size were positively related (F[1,29] = 8.91, R2 =

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Patterson, J. Megan M., Marissa M. Jaggars, and Martin I. Boyer. "Ulnar and Median Nerve Palsy in Long-distance Cyclists." American Journal of Sports Medicine 31, no. 4 (2003): 585–89. http://dx.doi.org/10.1177/03635465030310041801.

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Background Although case reports have identified the presence of distal ulnar nerve sensory and motor dysfunction in long-distance cyclists, the actual incidence of this condition, referred to as “cyclist's palsy,” is unknown. Purpose To determine the incidence of distal ulnar nerve compression in cyclists. Study Design Prospective study. Methods Twenty-five road or mountain bike riders responded to a questionnaire and were then physically examined and interviewed before and after a 600-km bicycle ride. Results Twenty-three of the 25 cyclists experienced either motor or sensory symptoms, or bo

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Song, Chengfang, Zhiqiang Pang, Xiaoyuan Jing, and Chunxia Xiao. "Distance field guided $$L_1$$ L 1 -median skeleton extraction." Visual Computer 34, no. 2 (2016): 243–55. http://dx.doi.org/10.1007/s00371-016-1331-z.

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Yu, Cathy Y., Timothy Blaine, Peter Panagos, and Akash P. Kansagra. "00001 Demographic disparities in proximity to stroke care in the United States." Journal of Clinical and Translational Science 5, s1 (2021): 26. http://dx.doi.org/10.1017/cts.2021.471.

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ABSTRACT IMPACT: Given the association between lower time to treatment and better clinical outcomes in stroke patients, identifying factors correlated with reduced proximity and thus greater time to stroke care can aid efforts to reduce disparities in stroke outcomes. OBJECTIVES/GOALS: The objective of this study is to quantify the relationship between distance to the nearest certified stroke hospital and census-derived demographics of age, race/ethnicity, income, and insurance status. METHODS/STUDY POPULATION: This is a cross-sectional study. Population data for all census tracts in the conti

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Planellas, Pere, Lídia Cornejo, Aram Ehsan, et al. "Urethral Injury in Rectal Cancer Surgery: A Comprehensive Study Using Cadaveric Dissection, Imaging Analyses, and Clinical Series." Cancers 15, no. 20 (2023): 4955. http://dx.doi.org/10.3390/cancers15204955.

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Male urethral injury during rectal cancer surgery is rare but significant. Scant information is available about the distances between the rectourethral space and neighboring structures. The aim of this study is to describe the anatomical relations of the male urethra. This three-pronged study included cadaveric dissection, retrospective MRI analysis, and clinical cases. Measurements included the R-Mu distance (shortest distance between the rectum and the membranous urethra), R-Am distance (distance from the anterior rectal wall to anal margin nearest to the membranous urethra), and the anal ca

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Xu, Lei, Tao Ma, Min Zhang, Linjie Zhou, and Caizhi Hu. "Effect of Wrist Dorsiflexion/Palmar Flexion on Median Nerve Deviation and Cross-Sectional Area in Patients with Carpal Tunnel Syndrome." Disease Markers 2023 (February 1, 2023): 1–5. http://dx.doi.org/10.1155/2023/3631193.

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Objective. To evaluate the effect of wrist dorsiflexion/palmar flexion on median nerve excursion and cross-sectional area in patients with carpal tunnel syndrome. Methods. From November 2019 to December 2021, 85 patients (110 affected wrists) who presented to our department and were diagnosed with carpal tunnel syndrome were collected and classified by severity as mild to moderate. Twenty-five healthy controls were selected during the same period, with a total of 50 healthy wrists. All patients and healthy volunteers underwent high-frequency ultrasonography to measure the vertical deviation be

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Reva, O. M., V. V. Kamyshyn, S. P. Borsuk, and S. V. Yarotskyi. "Optimization of the systems of preferences of specialists on the set of features of investment attractiveness of the objects of expertise." Science, technologies, innovation, no. 4(32) (2025): 71–82. https://doi.org/10.35668/2520-6524-2024-4-08.

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The object of research: The central object of the study is potential investment objects that require a detailed analysis for the restoration and modernization of the national economy in the post-conflict period. The problem to be solved: The study addresses the need to apply advanced system and information technologies to objectively and effectively assess the investment attractiveness of objects. The main focus is on identifying and analyzing the characteristics that influence investors’ decision-making. Results: аs a result of the study, new methods for optimizing the group preference system

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Shu, Di, Yulin Peng, Ziyu Zhang, et al. "Distance Decay of Urban Park Visitation: Roles of Personal Characteristics and Visitation Patterns." Forests 15, no. 9 (2024): 1589. http://dx.doi.org/10.3390/f15091589.

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Distance decay of urban park visitation (e.g., visitation number and visitation frequency) has been widely acknowledged and is increasingly integrated into urban park planning and management considering spatial accessibility and service equity. However, thorough understandings especially concerning the variations among visitors with different personal characteristics and visitation patterns are still scarce. Taking Changsha, China as an example, we collected data on visitation distance (i.e., the distance between urban parks and visitor’s homes) and visitation frequency of 2535 urban park visi

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Sai Balaji, Areti, and Sushma Ladi. "Comparison of Median and Paramedian Approach in Spinal Anaesthesia Using Whitacre Spinal Needle in Cesarean Surgery." Indian Journal of Anesthesia and Analgesia 8, no. 1 (2021): 21–25. http://dx.doi.org/10.21088/ijaa.2349.8471.8121.3.

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Background: Spinal anaesthesia is the most common anaesthesia techniques used for Caesarean surgeries, median and paramedian approaches are two common techniques used for spinal anaesthesia. The present study was conducted to compare both median and paramedian approach in spinal anaesthesia in pregnant patients undergoing caesarean surgery in terms of incidence of PDPH, ease of each approach and skin to subarachnoid distance in both the approaches. Materials and Methods: A total of 100 obstetric patients, undergoing cesarean surgery were included in the study. Patients were randomly allocated

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Yu, Cathy Y., Timothy Blaine, Peter D. Panagos, and Akash P. Kansagra. "Demographic Disparities in Proximity to Certified Stroke Care in the United States." Stroke 52, no. 8 (2021): 2571–79. http://dx.doi.org/10.1161/strokeaha.121.034493.

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Background and Purpose: Demographic disparities in proximity to stroke care influence time to treatment and clinical outcome but remain understudied at the national level. This study quantifies the relationship between distance to the nearest certified stroke hospital and census-derived demographics. Methods: This cross-sectional study included population data by census tract from the United States Census Bureau’s 2014–2018 American Community Survey, stroke hospitals certified by a state or national body and providing intravenous thrombolysis, and geographic data from a public mapping service.

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LYAUDET, LAURENT, PAULIN MELATAGIA YONTA, MAURICE TCHUENTE, and RENÉ NDOUNDAM. "DISTANCE PRESERVING SUBTREES IN MINIMUM AVERAGE DISTANCE SPANNING TREES." Discrete Mathematics, Algorithms and Applications 05, no. 03 (2013): 1350010. http://dx.doi.org/10.1142/s1793830913500109.

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Given an undirected graph G = (V, E) with n vertices and a positive length w(e) on each edge e ∈ E, we consider Minimum Average Distance (MAD) spanning trees i.e., trees that minimize the path length summed over all pairs of vertices. One of the first results on this problem is due to Wong who showed in 1980 that a Distance Preserving (DP) spanning tree rooted at the median of G is a 2-approximate solution. On the other hand, Dankelmann has exhibited in 2000 a class of graphs where no MAD spanning tree is distance preserving from a vertex. We establish here a new relation between MAD and DP tr

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Kochanek, C. S., John C. Raymond, and Nelson Caldwell. "The Distance to the S147 Supernova Remnant." Astrophysical Journal 968, no. 2 (2024): 94. http://dx.doi.org/10.3847/1538-4357/ad4493.

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Abstract In the absence of a parallax distance to a pulsar or a surviving binary in a supernova remnant (SNR), distances to Galactic SNRs are generally very uncertain. However, by combining Gaia data with wide-field, multifiber echelle spectroscopy, it is now possible to obtain accurate distances to many SNRs with limited extinction by searching for the appearance of high-velocity Ca ii or Na i absorption lines in hot stars as a function of distance. We demonstrate this for the SNR S147 using the spectra of 259 luminous blue stars. We obtain a median distance of 1.37 kpc (1.30–1.47 kpc at 90%

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ZHANG Hong, 张弘, and 范九伦 FAN Jiulun. "Medianbased Square Distance Symmetrical Cooccurrence Matrix Thresholding Method." ACTA PHOTONICA SINICA 43, no. 6 (2014): 610001. http://dx.doi.org/10.3788/gzxb20144306.0610001.

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LU, Hongyun, Mengmeng ZHANG, Hongyuan JING, and Zhi LIU. "Improving Sliced Wasserstein Distance with Geometric Median for Knowledge Distillation." IEICE Transactions on Information and Systems E107.D, no. 7 (2024): 890–93. http://dx.doi.org/10.1587/transinf.2023edl8083.

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Hagauer, Johann. "Skeletons, recognition algorithm and distance matrix of quasi-median graphs." International Journal of Computer Mathematics 55, no. 3-4 (1995): 155–71. http://dx.doi.org/10.1080/00207169508804371.

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