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Space-filling Curves for High-performance Data Mining
[article]
2020
arXiv
pre-print
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Space-filling curves like the Hilbert-curve, Peano-curve and Z-order map natural or real numbers from a two or higher dimensional space to a one dimensional space preserving locality. ...
We define the Hilbert-curve in terms of a finite automaton of Mealy-type which determines from the two-dimensional coordinate space the Hilbert order value and vice versa in a logarithmic number of steps ...
The authors of this work take full responsibility for its content. ...
arXiv:2008.01684v1
fatcat:ic3qj2oljngnxnksnbb77zno3q
Design and analysis of a multi-dimensional data sampling service for large scale data analysis applications
2006
Proceedings 20th IEEE International Parallel & Distributed Processing Symposium
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The proposed algorithm leverages Hilbert space-filling curves in order to provide an approximate linear order of multidimensional data while maintaining spatial locality. ...
Sampling is a widely used technique to increase efficiency in database and data mining applications operating on large dataset. ...
Hilbert space filling curve is a one-dimensional curve which visits every point within a n-dimensional space in a specific order [11] . ...
doi:10.1109/ipdps.2006.1639315
dblp:conf/ipps/ZhangKSP06
fatcat:emeykbxpijdtxlqbwdfsid36s4
Support technologies for deep and complex roadways in underground coal mines: a review
2014
International Journal of Coal Science & Technology
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been applied at proper occasions, which have provided reliable technical measures for the safe and high effective construction and mining of underground coal mines. ...
Based on geological and mining characteristics, coal mine roadways under complex conditions were divided into five types, for each type the deformation and damage characteristics of rocks surrounding roadways ...
data for the initial design. ...
doi:10.1007/s40789-014-0043-0
fatcat:yeckwxynk5hblagolmh7gnnczm
Efficient data layouts for a three-dimensional electrostatic Particle-in-Cell code
2018
Journal of Computational Science
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To accurately solve realistic problems, the method requires to use trillions of particles and therefore, there is a strong demand for high performance code on modern architectures. ...
We also note that it is possible to use space-filling curves without using the redundant data structure for E. ...
We thus explored several space-filling curves for the data layout of E and ρ, and different loop transformations for the particle loops, with the aim of improving the cache reuse and achieving efficient ...
doi:10.1016/j.jocs.2018.06.004
fatcat:eztadpep6vd6llqy2r6v4cfibe
Evaluation of pre-jamming indication parameter during blind backfilling technique
2016
Journal of Sustainable Mining
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of filling. ...
Pressure signature graphs and pressure loss curves with bed advancement under different flow conditions are examined. ...
We are also thankful to Department of Mining Engineering, IIT Kharagpur for providing the experimental facilities. ...
doi:10.1016/j.jsm.2016.11.001
fatcat:52bdesnpzzamppjn4afh2iq2da
Fast and Scalable Outlier Detection with Approximate Nearest Neighbor Ensembles
[chapter]
2015
Lecture Notes in Computer Science
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In this article, we present a highly scalable approach to compute the nearest neighbors of objects that instead focuses on preserving neighborhoods well using an ensemble of space-filling curves. ...
This inherently quadratic problem is not scalable to large data sets, making multidimensional outlier detection for big data still an open challenge. ...
If the data dimensionality is low, bulk-loaded R*-trees are excellent. 2. If the exact distances are of importance, PINN is expected to work best. 3. ...
doi:10.1007/978-3-319-18123-3_2
fatcat:jbhn3t6vhrbqdcwwnjdzhaz3zu
Key Technology Research on the Rapid-Molding In-Closed Retaining-Wall in Filling Mining
2022
Shock and Vibration
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Filling mining is a main technology of mining coal resources under buildings, and it has a good effect on preventing ground subsidence. ...
The XV2308 working face was selected for on-site testing and the on-site monitoring of the roof pressure, the roadway deformation, and the stress of the coal body. ...
Optimization and Performance Improvement of High- Water Filling Materials. ...
doi:10.1155/2022/7317247
fatcat:7lybute7ejcujlxy6ctyunr32y
Development of Quick-Solidifying Foamed Concrete for Mine Fires Extinguishment and the Basic Performances Tests
2020
Frontiers in Materials
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The results finally show that the quick-solidifying foamed concrete developed in this study has good performance with regard to filling and fire prevention in the large spaces of a mine. ...
., for engineering filling and coal mine fire extinguishing, has become the first choice for responding to such fires. ...
AUTHOR CONTRIBUTIONS GY and LKD conducted the experiments, data analyses, and characterizations. YKK and YHD drafted the manuscript. ...
doi:10.3389/fmats.2020.587998
fatcat:jpdjzamiajdnxn4wvuav37v5gi
Cemented Backfilling Mining Technology for Gently Inclined Coal Seams Using a Continuous Mining and Continuous Backfilling Method
2021
Shock and Vibration
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The new technology is suitable for cemented-fill mining of gently inclined coal seams. ...
Numerical simulations were performed to investigate the dynamic migration law of surrounding rock stress using CMCB cemented-fill mining technology, and similar simulations were conducted to analyze the ...
(a) One-step mining stress contour and curve. (b) Two-step mining stress contour and curve.
Figure 8 : 8 Filling and mining in the first group. (a) One-step mining stress contour and curve. ...
doi:10.1155/2021/6652309
fatcat:iagrk3e6mfh2pfagjnyjnnegcm
Hilbert Space Clustering based Chronological Backward Search for Effective Web Sequential Pattern Mining
2017
International Journal of Computer Applications
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The clustering of frequent web patterns in web log database helps for minimizing the space and time complexity of web sequential pattern mining. ...
Web sequential pattern mining is an imperative for analyzing the access behavior of web users. Recently, few research works have been designed for mining the web sequential patterns. ...
A Hilbert curve is also termed as Hilbert space-filling curve. The Hilbert space-filling curve of web access patterns for clustering is shown in below Figure 3 . ...
doi:10.5120/ijca2017915609
fatcat:o7cd2jdl45bitbxow26aej5k7e
Evaluation of Operating Performance of Backfilling Hydraulic Support Using Six Hybrid Machine Learning Models
2022
Minerals
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Previously conducted studies have established that surface subsidence is typically avoided by filling coal mined-out areas with solid waste. ...
Backfilling hydraulic supports are critically important devices in solid backfill mining, whose operating performance can directly affect backfill mining efficiency. ...
Acknowledgments: Thanks to =anonymous coal mine for the parameters of the hydraulic support.
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/min12111388
fatcat:l5myntwepba23bhkuepyw7u7na
Parallel Algorithms for High-dimensional Similarity Joins for Data Mining Applications
1997
Very Large Data Bases Conference
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We also examine the effectiveness of the algorithms in the context of a specific data-mining problem, that of finding similar time-series. ...
The empirical results show that our algorithm exhibits good performance and scalability, as well an ability to handle dataskew. ...
This approach in [17] uses a space-filling curve known as the "Z curve"; assigned cell-numbers are called "Z values". Other space-filling curves include the Gray code[6] and the Hilbert curue[l5]. ...
dblp:conf/vldb/ShaferA97
fatcat:3sly4wjfcvhqzczadr6zamgucy
Parameter Optimization and Fragmentation Prediction of Fan-Shaped Deep Hole Blasting in Sanxin Gold and Copper Mine
2022
Minerals
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For San-Xin gold and copper mine, deep blasting large block rate is high resulting in difficulty in transporting the ore out; secondary blasting not only increases blasting costs but is more likely to ...
The result has wide applicability and can provide solutions for underground mines that also have problems with blasting large block rate. ...
the safety of underground workers working under filled bodies and provided experience for reducing mine casualties [3] . ...
doi:10.3390/min12070788
fatcat:ww4xpwt6mvabvhyyjdbvaay3om
Indexing personal image collections: a flexible, scalable solution
2010
IEEE transactions on consumer electronics
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The index is based on the simultaneous use of several moderatedimensional space-filling curves. ...
In this paper we present multicurves, a new indexing method for multimedia descriptors, able to handle high dimensionalities (100 dimensions and over) and large databases (millions of descriptors). ...
This somewhat surprising property of high dimensional data had already been observed in the field of data mining [17] . ...
doi:10.1109/tce.2010.5606242
fatcat:mpwir7pa3bd25arjavg7rwvmce
Experimental Study on the Failure Characteristics of Strata With Different Filling Rates in Long-wall Filling Mining
2018
E3S Web of Conferences
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are staggered, the vertical displacement of rock strata is differentiated obviously,while filling rate is high, the fractures appeared only in low strata, the rock strata displacement main occurs near ...
In order to study the mechanical characteristics including deformation ,displacement and stress distribution of surrounding rock during the process of filling mining with different filling rate, according ...
Literature [8] proposed the theoretical model of continuous curved beam in overburden rock strata for filling and mining, expounded the geometric and mechanical characteristics of continuous curved beam ...
doi:10.1051/e3sconf/20185303043
fatcat:v6k43y72jndxtbykil6wtixw5i
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