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Experimental Estimation Of Number Of Clusters Based On Cluster Quality

G. Hannah Grace, Kalyani Desikan
2014 Journal of Mathematics and Computer Science  
The main aim of text clustering is to minimize intra-cluster distance between documents, and maximize the inter-cluster distance using an appropriate distance or similarity measure.  ...  Most clustering methods require an object representation and also a distance or similarity measure between objects.  ... 
doi:10.22436/jmcs.012.04.06 fatcat:fna2l4xjgjazvplv3mi3g47toa

Featureless classification of light curves

S. D. Kügler, N. Gianniotis, K. L. Polsterer
2015 Monthly notices of the Royal Astronomical Society  
Subsequently, a distance matrix is created, by measuring the similarity of each pair of light curves with an according distance. This distance matrix is then made available to several classifiers.  ...  suited for tasks beyond classification, e.g. unsupervised learning.  ...  Subsequently, a distance matrix is created, by measuring the similarity of each pair of light curves with an according distance. This distance matrix is then made available to several classifiers.  ... 
doi:10.1093/mnras/stv1181 fatcat:2hurgqkajbcizlg4pr6dx35gde

Treadmill walking improves walking speed and distance in ambulatory people after stroke and is not inferior to overground walking: a systematic review

Lucas R Nascimento, Augusto Boening, Abílio Galli, Janaine C Polese, Louise Ada
2021 Journal of Physiotherapy  
Treadmill walking had a similar or better effect on walking speed (MD 0.07 m/s, 95% CI 0.00 to 0.13) and distance (MD 18 m, 95% CI 1 to 36) compared with overground walking.  ...  Treadmill walking increased walking speed by 0.13 m/s (95% CI 0.08 to 0.19) and distance by 46 m (95% CI 24 to 68) compared with no/non-walking intervention; these effects were largely maintained beyond  ...  Assessment of Life Habits). 10 The timing of the measurements and the procedure used to measure the outcomes were recorded to assess the similarity of the studies.  ... 
doi:10.1016/j.jphys.2021.02.014 pmid:33744188 fatcat:ryyagaoqgng6fezfdi5zfyg4re

Distance perception in real and virtual environments

Jodie M. Plumert, Joseph K. Kearney, James F. Cremer, Kara Recker
2005 ACM Transactions on Applied Perception  
Adults underestimated time to walk in both environments for distances of 60 to 80 ft and beyond.  ...  We found that people underestimated time to walk in both environments for distances of 40 to 60 ft and beyond.  ...  Each distance was measured using a large tape measure. When the second experimenter was in position, he or she retracted the tape measure.  ... 
doi:10.1145/1077399.1077402 fatcat:qli2pdsywrd43b6zkfbxpx2vzi

Distance perception in real and virtual environments

Jodie M. Plumert, Joseph K. Kearney, James F. Cremer
2004 Proceedings of the 1st Symposium on Applied perception in graphics and visualization - APGV '04  
Adults underestimated time to walk in both environments for distances of 60 to 80 ft and beyond.  ...  We found that people underestimated time to walk in both environments for distances of 40 to 60 ft and beyond.  ...  Each distance was measured using a large tape measure. When the second experimenter was in position, he or she retracted the tape measure.  ... 
doi:10.1145/1012551.1012557 dblp:conf/apgv/PlumertKC04 fatcat:lpejxm4aiben5dznoqotrqissa

Establishment of Quercus marilandica Muenchh. and Juniperus virginiana L. in the Tallgrass Prairie of Oklahoma, USA Increases Litter Inputs and Soil Organic Carbon

Vanessa C. Nunes Biral, Rodney E. Will, Chris B. Zou
2019 Forests  
However, the foliage of trees decomposed more quickly than grass foliage when measured both beneath and beyond the tree canopy (25% faster).  ...  encroachment by two native tree species (Quercus marilandica Muenchh. and Juniperus virginiana L.) into a tallgrass prairie in northcentral Oklahoma, and related it to spatial heterogeneity in soil carbon by measuring  ...  Following a similar protocol, we also would not have found differences, i.e., point 3 (at the edge of the canopy) and point 4 (beyond the canopy) were similar in our study, emphasizing the relatively fine  ... 
doi:10.3390/f10040329 fatcat:knrygtmuabg27jwvjzdban345i

An Optimal Transport Approach to Deep Metric Learning (Student Abstract)

Jason Xiaotian Dou, Lei Luo, Raymond Mingrui Yang
2022 PROCEEDINGS OF THE THIRTIETH AAAI CONFERENCE ON ARTIFICIAL INTELLIGENCE AND THE TWENTY-EIGHTH INNOVATIVE APPLICATIONS OF ARTIFICIAL INTELLIGENCE CONFERENCE  
Most research in the area has been mainly focusing on improving the loss functions and similarity measures.  ...  Furthermore, we introduce a new efficient algorithm using Sinkhorn approximation and Wasserstein measure coreset.  ...  The framework takes advantage of two new ranking based loss functions: wtriplet loss and wcontrastive loss, which are formulated to capture image similarities via Wasserstein distance.  ... 
doi:10.1609/aaai.v36i11.21604 fatcat:3q22kd5thfbbpf7duxw3fq67ii

Treadmill training is effective for ambulatory adults with stroke: a systematic review

Janaine C. Polese, Louise Ada, Catherine M. Dean, Lucas R. Nascimento, Luci F. Teixeira-Salmela
2013 Journal of Physiotherapy  
Outcome measures: Walking speed measured in m/s during the 10-m Walk Test and walking distance measured in m during the 6-min Walk Test.  ...  It also resulted in greater walking distance immediately after the intervention period (MD 40 m, 95% CI 27 to 53) and this was also maintained beyond the intervention period (MD 40 m, 95% CI 24 to 55).  ...  The timing of the measurements of outcomes and the procedure used to measure walking speed and distance were recorded in order to assess the similarity of the studies.  ... 
doi:10.1016/s1836-9553(13)70159-0 pmid:23663792 fatcat:gvvmpayesza53ftaz4biqzr4lu

Reaching measures and feedback effects in auditory peripersonal space

Mercedes X. Hüg, Ramiro O. Vergara, Fabián C. Tommasini, Pablo E. Etchemendy, Fernando Bermejo, Laura G. Fernandez
2019 Scientific Reports  
We analyse the effects of exploration feedback on reaching measures of perceived auditory peripersonal space (APS) boundary and the auditory distance perception (ADP) of sound sources located within it  ...  We conducted an experiment in which the participants had to estimate if a sound source was (or not) reachable and to estimate its distance (40 to 150 cm in 5-cm steps) by reaching to a small loudspeaker  ...  To our knowledge, only Brungart et al. 23 measured ADP in the peripersonal space using real sound sources located at near distances and by response methods similar to the one used here.  ... 
doi:10.1038/s41598-019-45755-2 pmid:31263231 pmcid:PMC6603038 fatcat:exkav344jnfzpkpee5eqgq4luu

Muthukrishna_Supplemental_Material_rev – Supplemental material for Beyond Western, Educated, Industrial, Rich, and Democratic (WEIRD) Psychology: Measuring and Mapping Scales of Cultural and Psychological Distance

Michael Muthukrishna, Adrian V. Bell, Joseph Henrich, Cameron M. Curtin, Alexander Gedranovich, Jason McInerney, Braden Thue
2020 Figshare  
Supplemental material, Muthukrishna_Supplemental_Material_rev for Beyond Western, Educated, Industrial, Rich, and Democratic (WEIRD) Psychology: Measuring and Mapping Scales of Cultural and Psychological  ...  Distance by Michael Muthukrishna, Adrian V.  ...  Note that similar distance from the United States (i.e. two countries that are close to each other on the line above) do not imply that these countries are culturally similar, only that they are equally  ... 
doi:10.25384/sage.12357185.v1 fatcat:koqoob6dqrg4dhpf5cbrbvwrnm

Ranging of songs with the song type on use of different cues in Carolina wrens: effects of familiarity

Marc Naguib
1997 Behavioral Ecology and Sociobiology  
Playbacks consisting of only one song prevented subjects' closerange experience with the loudspeaker, and¯ights beyond the loudspeaker provided direct evidence for over-assessment of distance when songs  ...  In order to assess degradation in a song the receiver needs to compare the characteristics of the received song to its characteristics at the source or at dierent distances.  ...  the loudspeaker, distance the loudspeaker was over-¯own, and approach distance (closest approach measured from the loudspeaker in the subjects' original direction for those subjects that did not¯y beyond  ... 
doi:10.1007/s002650050354 fatcat:d24fkpfzpfhrfdhw4fdntuwaru

Page 486 of Geological Society of America Bulletin Vol. 67, Issue 4 [page]

1956 Geological Society of America Bulletin  
Distance was measured directly to 13 and 29 seconds on the two halves and calculated beyond.  ...  Distance was measured from the direct water wave to 19 and 29 seconds on the two halves and calculated beyond.  ... 

DKPro Similarity: An Open Source Framework for Text Similarity

Daniel Bär, Torsten Zesch, Iryna Gurevych
2013 Annual Meeting of the Association for Computational Linguistics  
Our goal is to provide a comprehensive repository of text similarity measures which are implemented using standardized interfaces.  ...  DKPro Similarity comprises a wide variety of measures ranging from ones based on simple n-grams and common subsequences to high-dimensional vector comparisons and structural, stylistic, and phonetic measures  ...  Semantic Similarity Measures DKPro Similarity also contains several measures which go beyond simple character sequences and compute text similarity on a semantic level.  ... 
dblp:conf/acl/BarZG13 fatcat:pd2vmc4v3ngdjblupowwlomz7y

Page 203 of The Astrophysical Journal Vol. 25, Issue 3 [page]

1907 The Astrophysical Journal  
For let d,, Fig. 1, be the distance between the pencils at the scale-reading A, within the focus, d, the distance at the scale- reading A, beyond the focus.  ...  the two positions and measuring the distances between the resulting images by a measuring microscope.  ... 

Page 339 of Astronomy and Astrophysics Vol. 316, Issue 2 [page]

1996 Astronomy and Astrophysics  
Therefore, Helios measurements of the breakpoint scale at 0.3 AU may be similar to those in po- lar data at the same distance.  ...  An extrapolation of the Ulysses data in Fig.4 to smaller radial distances suggests that the polar and near-ecliptic high speed stream breakpoints might be similar at some distance less than | AU.  ... 
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