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Mixture Complexity and Its Application to Gradual Clustering Change Detection [article]

Shunki Kyoya, Kenji Yamanishi
2020 arXiv   pre-print
Subsequently, we apply MC to the issue of gradual clustering change detection.  ...  Meanwhile, we consider the clustering changes to be gradual in terms of MC; it has the benefits of finding the changes earlier and discerning the significant and insignificant changes.  ...  Acknowledgement The marketing dataset was provided by Hakuhodo, Inc. and M-CUBE, inc. This work was partially supported by JST KAKENHI 191400000190 and JST-AIP JPMJCR19U4.  ... 
arXiv:2007.07467v1 fatcat:esc7lk6sxfcmtj5if4wvxptgli

Guest editorial: Integrated spatio-temporal analysis and data mining

Tao Cheng
2012 Geoinformatica  
It emerged out of a need to create effective and efficient techniques in order to turn massive data into meaningful information and knowledge and is a key tool in analysing Big Data with spatiotemporal  ...  STSSP uses a scanning window, moving across space and time, to detect abnormal events in specific areas over a certain period of time.  ...  It makes use of random coefficient modelling and bootstrapping approaches to overcome this issue, and a gradual advance in the onset of spring is suggested by the results of the analysis.  ... 
doi:10.1007/s10707-012-0167-6 fatcat:4mwsawkwvfholpralomsrvk76e

Selective Visual Detection of TNT at the Sub-Zeptomole Level

Ammu Mathew, P. R. Sajanlal, Thalappil Pradeep
2012 Angewandte Chemie  
This may either be attributed to the anionic s complex formed and the subsequent sensitivity of the cluster to its immediate environment, or as a result of the fluorescence resonance energy transfer between  ...  E) Effect on the emission spectra of the bare cluster upon mixing with FITC dye and subsequent exposure to TNT solutions of varying concentrations; inset shows photographs of a solution containing a mixture  ...  The visual detection of 2,4,6-trinitrotoluene and Hg 2+ at the sub-zeptomole level is demonstrated.  ... 
doi:10.1002/ange.201203810 fatcat:jkzrjzjg2vh5divmq326hxzbdi

Selective Visual Detection of TNT at the Sub-Zeptomole Level

Ammu Mathew, P. R. Sajanlal, Thalappil Pradeep
2012 Angewandte Chemie International Edition  
This may either be attributed to the anionic s complex formed and the subsequent sensitivity of the cluster to its immediate environment, or as a result of the fluorescence resonance energy transfer between  ...  E) Effect on the emission spectra of the bare cluster upon mixing with FITC dye and subsequent exposure to TNT solutions of varying concentrations; inset shows photographs of a solution containing a mixture  ...  The visual detection of 2,4,6-trinitrotoluene and Hg 2+ at the sub-zeptomole level is demonstrated.  ... 
doi:10.1002/anie.201203810 pmid:22915324 fatcat:q273a3gtevgopm5gpigubeljqu

Novelty detection based on extensions of GMMs for industrial gas turbines

Yu Zhang, Chris Bingham, Michael Gallimore, Darren Cox
2015 2015 IEEE International Conference on Computational Intelligence and Virtual Environments for Measurement Systems and Applications (CIVEMSA)  
The paper applies the application of Gaussian mixture models (GMMs) for operational pattern discrimination and novelty/fault detection for an industrial gas turbine (IGT).  ...  Variational Bayesian GMM (VBGMM) is used to automatically cluster operational data into steady-state and transient responses, where extraction of steady-state data is an important preprocessing scenario  ...  ACKNOWLEDGMENT The authors would like to thank Siemens Industrial Turbomachinery, Lincoln, U.K., for providing research support and access to real-time data to support the research outcomes.  ... 
doi:10.1109/civemsa.2015.7158591 fatcat:rxpf4isvmfdgjncfmin2li26em

Complexing properties of the b metallothionein domain with cadmium and/or zinc, studied by differential pulse polarography

M. Dabrio, A. R. Rodríguez
2000 Analusis  
In the case of binary mixtures, Cd + β or Zn + β, pure complexes with a probable stoichiometry of Cd 3 β and Zn 3 β are formed, whereas in the case of tertiary mixtures, β + [Cd + Zn] mixed cadmium and  ...  and disappears at [β] ad > 0.15, the peak potential of free Zn 2+ shifts to more negative values and its intensity 374 ANALUSIS, 2000, 28, N°5 Figure 3.  ...  Vas L ák (University of Zurich) for giving us information about availability of α and β MT domains and Dr.  ... 
doi:10.1051/analusis:2000280370 fatcat:bgpckmaqmzdmzdixe5m2mwxqxe

A Statistical Mechanical Model of Cholesterol/Phospholipid Mixtures: Linking Condensed Complexes, Superlattices, and the Phase Diagram

István P. Sugár, Parkson L.-G. Chong
2011 Journal of the American Chemical Society  
This model is able to explain how cholesterol superlattices and cholesterol-phospholipid condensed complexes are inter-related.  ...  and aggregates of rigid clusters.  ...  Acknowledgments We are very thankful for Professor Olle Edholm for the MD simulations on DMPC/cholesterol mixtures.  ... 
doi:10.1021/ja2092322 pmid:22196210 pmcid:PMC4120115 fatcat:lu34olimjfg6royyw2df3snhuy

CORRECTING FALSE SEGMENTATION IN VIDEO USING IMAGE OVER-SEGMENTATION

SHAILAJA SURKUTLAWAR SURKUTLAWAR, RAMESH K KULKARNI
2013 International Journal of Image Processing and Vision Science  
A colour clustering based on k-means and image over-segmentation are used to segment the input frame into patches and shadow suppression done by HSV colour space, the outputs of mixture of Gaussians are  ...  When scene exhibits pertinent dynamism method based on mixture of Gaussians is a good balance between accuracy and complexity, but fails due to two kinds of false segmentations i.e moving shadows incorrectly  ...  Gaussian Mixture Model (GMM) is thought to be one of the best background modeling methods and works well when gradual changes appear in the scene .  ... 
doi:10.47893/ijipvs.2013.1032 fatcat:mezlh6z5tfdoznjadaaw2craea

Unsupervised speaker segmentation and tracking in real-time audio content analysis

Lie Lu, Hong-Jiang Zhang
2005 Multimedia Systems  
Speaker segmentation is to detect the speaker change boundaries in a speech stream. It is performed by a two-step algorithm, which includes potential change detection and refinement.  ...  In our approach, incremental speaker model updating and segmental clustering is proposed, which makes the unsupervised speaker segmentation and tracking feasible in real-time processing.  ...  Because of the real-time processing requirement, it is not affordable to use complex audio features and complex clustering methods.  ... 
doi:10.1007/s00530-004-0160-5 fatcat:3ccwowz66ng6jk5muwy73nx67u

Data Mining Models of High Dimensional Data Streams, and Contemporary Concept Drift Detection Methods: a Comprehensive Review

M Sankara Prasanna Kumar, A P. Siva Kumar, K Prasanna
2018 International Journal of Engineering & Technology  
The emergence of concept drift in data streams leads to increase misclassification and performing degradation of data streams.  ...  The insight of the manuscript is probing the inbuilt difficulties of existing contemporary change-detection methods when they encounter during data dimensions scales.  ...  It also supplies several approaches to detect univariate change.  ... 
doi:10.14419/ijet.v7i3.6.14959 fatcat:5tntlnlysngutcf3v2g4kg4bl4

Speaker change detection and tracking in real-time news broadcasting analysis

Lie Lu, Hong-Jiang Zhang
2002 Proceedings of the tenth ACM international conference on Multimedia - MULTIMEDIA '02  
In such a case, both speaker identities and number of speakers are assumed unknown. A two-step speaker change detection algorithm, including potential change detection and refinement, is proposed.  ...  Speaker tracking is performed based on the results of speaker change detection. A Bayesian Fusion method is used to fuse multiple audio features to get a more reliable result.  ...  As the process accumulates more data, the speaker model should become more accurate. (2) Because of real-time limitation, it is not affordable to use complex audio features and complex clustering methods  ... 
doi:10.1145/641007.641127 dblp:conf/mm/LuZ02 fatcat:s52emjd2u5eghgdzoulgw2gk3i

Speaker change detection and tracking in real-time news broadcasting analysis

Lie Lu, Hong-Jiang Zhang
2002 Proceedings of the tenth ACM international conference on Multimedia - MULTIMEDIA '02  
In such a case, both speaker identities and number of speakers are assumed unknown. A two-step speaker change detection algorithm, including potential change detection and refinement, is proposed.  ...  Speaker tracking is performed based on the results of speaker change detection. A Bayesian Fusion method is used to fuse multiple audio features to get a more reliable result.  ...  As the process accumulates more data, the speaker model should become more accurate. (2) Because of real-time limitation, it is not affordable to use complex audio features and complex clustering methods  ... 
doi:10.1145/641124.641127 fatcat:wjyaydsmqvgq7ptp5oed25pvbi

Disposable and Low-Cost Colorimetric Sensors for Environmental Analysis

Giancarla Alberti, Camilla Zanoni, Lisa Rita Magnaghi, Raffaela Biesuz
2020 International Journal of Environmental Research and Public Health  
Colorimetric sensors deliver quick, naked-eye detection, low-cost, and adequate determination of environmental analytes.  ...  In particular, disposable sensors are cheap and easy-to-use devices for single-shot measurements.  ...  (a) The complex between the amine group and TNT molecule and (b) a gradual change in color as the TNT concentration increases [98] .  ... 
doi:10.3390/ijerph17228331 pmid:33187161 fatcat:gedu7ttofjbrzkkcxkwclnbe3u

Determination of target detection limits in hyperspectral data using band selection and dimensionality reduction

W. Gross, J. Boehler, K. Twizer, B. Kedem, A. Lenz, M. Kneubuehler, P. Wellig, R. Oechslin, H. Schilling, S. Rotman, W. Middelmann, Karin U. Stein (+1 others)
2016 Target and Background Signatures II  
Hyperspectral remote sensing data can be used for civil and military applications to robustly detect and classify" "target objects.  ...  ABSTRACT Hyperspectral remote sensing data can be used for civil and military applications to robustly detect and classify target objects.  ...  We thank our colleagues from Fraunhofer IOSB and University of Zurich and University of Be'er-Sheba who provided insight and expertise that greatly assisted the research.  ... 
doi:10.1117/12.2240931 fatcat:mocvrwzna5d3plukpnjdnzmlaq

Moving Pixels in Static Cameras: Detecting Dangerous Situations due to Environment or People [chapter]

Simone Calderara, Rita Cucchiara, Andrea Prati
2010 Studies in Computational Intelligence  
When the sensor is a camera, motion is the key element to detect changes and moving objects must be correctly classified according to their nature.  ...  Well known techniques exist to cope with this problem that is commonly referred as "change detection".  ...  The mixture component reweighting process is able to catch slow and gradual variations of energy ratio.  ... 
doi:10.1007/978-3-642-11756-5_1 fatcat:rhlbtuv26nbifbndgc6z3qo64e
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