数学テクノロジー先端研究部門

研究成果 1981 2019

フィルター
会議での発言
2018

On the complexity of stable fractional hypergraph matching

Ishizuka, T. & Kamiyama, N., 12 1 2018, 29th International Symposium on Algorithms and Computation, ISAAC 2018. Liao, C-S., Lee, D-T. & Hsu, W-L. (版). Schloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing, (Leibniz International Proceedings in Informatics, LIPIcs; 巻数 123).

研究成果: 著書/レポートタイプへの貢献会議での発言

Polynomials

Submodular function minimization with submodular set covering constraints and precedence constraints

Kamiyama, N., 1 1 2018, Approximation and Online Algorithms - 15th International Workshop, WAOA 2017, Revised Selected Papers. Solis-Oba, R. & Fleischer, R. (版). Springer Verlag, p. 90-101 12 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); 巻数 10787 LNCS).

研究成果: 著書/レポートタイプへの貢献会議での発言

Function Minimization
Submodular Function
Set Covering
Precedence Constraints
Covering Problem

The B-branching problem in digraphs

Kakimura, N., Kamiyama, N. & Takazawa, K., 8 1 2018, 43rd International Symposium on Mathematical Foundations of Computer Science, MFCS 2018. Potapov, I., Worrell, J. & Spirakis, P. (版). Schloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing, 12. (Leibniz International Proceedings in Informatics, LIPIcs; 巻数 117).

研究成果: 著書/レポートタイプへの貢献会議での発言

Polynomials
Decomposition

Tight approximability of the server allocation problem for real-time applications

Ito, T., Kakimura, N., Kamiyama, N., Kobayashi, Y., Okamoto, Y. & Shiitada, T., 1 1 2018, Algorithmic Aspects of Cloud Computing - 3rd International Workshop, ALGOCLOUD 2017, Revised Selected Papers. Springer Verlag, p. 41-55 15 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); 巻数 10739 LNCS).

研究成果: 著書/レポートタイプへの貢献会議での発言

Approximability
Servers
Server
Real-time
Approximation algorithms
2017

A multigrid-balancing preconditioner of domain decomposition methods for magnetic field problems

Tagami, D., 1 12 2017, IEEE CEFC 2016 - 17th Biennial Conference on Electromagnetic Field Computation. Institute of Electrical and Electronics Engineers Inc., 7816393. (IEEE CEFC 2016 - 17th Biennial Conference on Electromagnetic Field Computation).

研究成果: 著書/レポートタイプへの貢献会議での発言

Domain decomposition methods
Domain Decomposition Method
Preconditioner
Balancing
Magnetic Field

Modeling and managing airport passenger flow under uncertainty: A case of fukuoka airport in Japan

Yamada, H., Ohori, K., Iwao, T., Kira, A., Kamiyama, N., Yoshida, H. & Anai, H., 1 1 2017, Social Informatics - 9th International Conference, SocInfo 2017, Proceedings. Ciampaglia, G. L., Yasseri, T. & Mashhadi, A. (版). Springer Verlag, p. 419-430 12 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); 巻数 10540 LNCS).

研究成果: 著書/レポートタイプへの貢献会議での発言

Airports
Japan
Congestion
Uncertainty
Modeling
2 引用 (Scopus)

Reconfiguration of maximum-weight b-matchings in a graph

Ito, T., Kakimura, N., Kamiyama, N., Kobayashi, Y. & Okamoto, Y., 1 1 2017, Computing and Combinatorics - 23rd International Conference, COCOON 2017, Proceedings. Springer Verlag, 巻 10392 LNCS. p. 287-296 10 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); 巻数 10392 LNCS).

研究成果: 著書/レポートタイプへの貢献会議での発言

Reconfiguration
Polynomials
Graph in graph theory
Bipartite Graph
Integer
2016
3 引用 (Scopus)

Efficient stabilization of cooperative matching games

Ito, T., Kakimura, N., Kamiyama, N., Kobayashi, Y. & Okamoto, Y., 1 1 2016, AAMAS 2016 - Proceedings of the 2016 International Conference on Autonomous Agents and Multiagent Systems. International Foundation for Autonomous Agents and Multiagent Systems (IFAAMAS), p. 41-49 9 p. (Proceedings of the International Joint Conference on Autonomous Agents and Multiagent Systems, AAMAS).

研究成果: 著書/レポートタイプへの貢献会議での発言

Stabilization
Combinatorial optimization
Polynomials
3 引用 (Scopus)

Exact and approximation algorithms for weighted matroid intersection

Huang, C. C., Kakimura, N. & Kamiyama, N., 2016, 27th Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2016. Association for Computing Machinery, 巻 1. p. 430-444 15 p.

研究成果: 著書/レポートタイプへの貢献会議での発言

Matroid Intersection
Approximation algorithms
Exact Algorithms
Approximation Algorithms
Matroid
2 引用 (Scopus)

The mixed evacuation problem

Hanawa, Y., Higashikawa, Y., Kamiyama, N., Katoh, N. & Takizawa, A., 1 1 2016, Combinatorial Optimization and Applications - 10th International Conference, COCOA 2016, Proceedings. Li, M., Wang, L. & Chan, T-H. H. (版). Springer Verlag, p. 18-52 35 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); 巻数 10043 LNCS).

研究成果: 著書/レポートタイプへの貢献会議での発言

Evacuation
Polynomials
Directed graphs
Railroad cars
Hardness
2015
7 引用 (Scopus)

Analytical estimation of the convergence point of populations

Murata, N., Nishii, R., Takagi, H. & Pei, Y., 9 10 2015, 2015 IEEE Congress on Evolutionary Computation, CEC 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., p. 2619-2624 6 p. 7257211

研究成果: 著書/レポートタイプへの貢献会議での発言

Evolutionary algorithms
Fitness Landscape
Evolutionary Computation
Experimental Evaluation
Fitness
1 引用 (Scopus)

Incorporation of gridded data into the analysis of remotely-sensed images: Basic quantitative strategy to analyze defoerestation by population growth

Tanaka, S. & Nishii, R., 11 10 2015, 2015 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., p. 2548-2551 4 p. 7326331. (International Geoscience and Remote Sensing Symposium (IGARSS); 巻数 2015-November).

研究成果: 著書/レポートタイプへの貢献会議での発言

Deforestation
population growth
land cover
deforestation
population density
3 引用 (Scopus)

Stable matchings with ties, master preference lists, and matroid constraints

Kamiyama, N., 1 1 2015, Algorithmic Game Theory - 8th International Symposium, SAGT 2015. Hoefer, M. & Hoefer, M. (版). Springer Verlag, p. 3-14 12 p. A1. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); 巻数 9347).

研究成果: 著書/レポートタイプへの貢献会議での発言

Stable Matching
Tie
Matroid
Capacity Constraints
Polynomial-time Algorithm
1 引用 (Scopus)

Unified modeling based on SVM and SVR for prediction of forest area ratio by human population density and relief energy

Nishii, R. & Tanaka, S., 11 10 2015, 2015 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 巻 2015-November. p. 2552-2555 4 p. 7326332

研究成果: 著書/レポートタイプへの貢献会議での発言

population density
relief
prediction
modeling
Deforestation
2014

Contextual unmixing of geospatial data based on Bayesian modeling

Nishii, R., Qin, P. & Uchi, D., 11 4 2014, International Geoscience and Remote Sensing Symposium (IGARSS). Institute of Electrical and Electronics Engineers Inc., p. 1631-1634 4 p. 6946760

研究成果: 著書/レポートタイプへの貢献会議での発言

Image classification
Normal distribution
Learning systems
Classifiers
Statistics
1 引用 (Scopus)

Re-evaluation of topographic attributes with human population in deforestation framework with spatial dependency

Tanaka, S. & Nishii, R., 11 4 2014, International Geoscience and Remote Sensing Symposium (IGARSS). Institute of Electrical and Electronics Engineers Inc., p. 3502-3505 4 p. 6947237. (International Geoscience and Remote Sensing Symposium (IGARSS)).

研究成果: 著書/レポートタイプへの貢献会議での発言

Deforestation
deforestation
climax
desert
methodology
2013
1 引用 (Scopus)

An inductive construction of minimally rigid body-hinge simple graphs

Higashikawa, Y., Kamiyama, N., Katoh, N. & Kobayashi, Y., 12 1 2013, Combinatorial Optimization and Applications - 7th International Conference, COCOA 2013, Proceedings. p. 165-177 13 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); 巻数 8287 LNCS).

研究成果: 著書/レポートタイプへの貢献会議での発言

Hinges
Simple Graph
Rigid Body
Combinatorial optimization
Combinatorial Optimization
2 引用 (Scopus)

Effect evaluation of topographic attributes on forest coverage ratios based on digital elevation model

Tanaka, S. & Nishii, R., 12 1 2013, 2013 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2013 - Proceedings. p. 2661-2664 4 p. 6723370. (International Geoscience and Remote Sensing Symposium (IGARSS)).

研究成果: 著書/レポートタイプへの貢献会議での発言

Deforestation
digital elevation model
deforestation
Akaike information criterion
Identification (control systems)

Nonlinear Bayesian unmixing of geospatial data based on GIBBS sampling

Nishii, R., Qin, P. & Uchi, D., 2013, 2013 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2013 - Proceedings. p. 3104-3107 4 p. 6723483

研究成果: 著書/レポートタイプへの貢献会議での発言

Image classification
Normal distribution
Learning systems
Classifiers
Statistics
2012
4 引用 (Scopus)

Statistical frameworking of deforestation models based on human population density and relief energy

Nishii, R., Miyata, D. & Tanaka, S., 12 1 2012, Earth Resources and Environmental Remote Sensing/GIS Applications III. 巻 8538. 85380K

研究成果: 著書/レポートタイプへの貢献会議での発言

deforestation
Deforestation
Model-based
Logistics
Likelihood
2011
2 引用 (Scopus)

Robustness of minimum cost arborescences

Kamiyama, N., 12 26 2011, Algorithms and Computation - 22nd International Symposium, ISAAC 2011, Proceedings. p. 130-139 10 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); 巻数 7074 LNCS).

研究成果: 著書/レポートタイプへの貢献会議での発言

Directed graphs
Robustness
Costs
Graph in graph theory
Directed Graph
2010
4 引用 (Scopus)

An application of novel zero-one inflated distributions with spatial dependence for the deforestation modeling

Nishii, R. & Tanaka, S., 12 1 2010, 2010 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010. p. 3442-3445 4 p. 5654397. (International Geoscience and Remote Sensing Symposium (IGARSS)).

研究成果: 著書/レポートタイプへの貢献会議での発言

Deforestation
deforestation
Logistics
logistics
modeling

An iterative domain decomposition method of magnetostatic problems based on a mixed formulation

Tagami, D., 2010, Proceedings - 2010 International Conference on Broadband, Wireless Computing Communication and Applications, BWCCA 2010. p. 301-303 3 p. 5633408

研究成果: 著書/レポートタイプへの貢献会議での発言

Domain decomposition methods
Magnetostatics
Lagrange multipliers
2009
2 引用 (Scopus)

Contextual unmixing of geospatial data based on Markov random fields and conditional random fields

Nishii, R. & Ozaki, T., 2009, WHISPERS '09 - 1st Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing. 5289004

研究成果: 著書/レポートタイプへの貢献会議での発言

Image classification
Stochastic models
Classifiers
4 引用 (Scopus)

Predictive control for dual-rate systems based on lifted state-space model identified by N4SID method

Qin, P., Yang, Z. J. & Nishii, R., 12 1 2009, Proceedings of the 48th IEEE Conference on Decision and Control held jointly with 2009 28th Chinese Control Conference, CDC/CCC 2009. p. 7369-7374 6 p. 5400855. (Proceedings of the IEEE Conference on Decision and Control).

研究成果: 著書/レポートタイプへの貢献会議での発言

Predictive Control
State-space Model
Control Strategy
Predictors
Function Minimization
1 引用 (Scopus)

Semi-supervised contextual classification and unmixing of hyperspectral data based on mixture distributions

Nishii, R., Ozaki, T. & Sawamura, Y., 2009, 2009 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2009 - Proceedings. 巻 2. 5418071

研究成果: 著書/レポートタイプへの貢献会議での発言

image classification
method
distribution
2008
4 引用 (Scopus)

Contextual unmixing of geospatial data based on gaussian mixture models and markov random fields

Nishii, R., Sawamura, Y., Nakamoto, A. & Kawaguchi, S., 12 1 2008, 2008 IEEE International Geoscience and Remote Sensing Symposium - Proceedings. 1 版 4779660. (International Geoscience and Remote Sensing Symposium (IGARSS); 巻数 4, 番号 1).

研究成果: 著書/レポートタイプへの貢献会議での発言

unsupervised classification
Image classification
Classifiers
method
supervised image classification
1 引用 (Scopus)

Covering directed graphs by in-trees

Kamiyama, N. & Katoh, N., 8 4 2008, Computing and Combinatorics - 14th Annual International Conference, COCOON 2008, Proceedings. p. 444-457 14 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); 巻数 5092 LNCS).

研究成果: 著書/レポートタイプへの貢献会議での発言

Covering Graph
Directed graphs
Directed Graph
Polynomials
Covering
1 引用 (Scopus)

Non-linear regression models to identify functional forms of deforestation

Tanaka, S. & Nishii, R., 2008, 2008 IEEE International Geoscience and Remote Sensing Symposium - Proceedings. 1 版 巻 4. 4779653

研究成果: 著書/レポートタイプへの貢献会議での発言

Deforestation
deforestation
Human engineering
Identification (control systems)
relief
2007
2 引用 (Scopus)

An efficient algorithm for the evacuation problem in a certain class of a network with uniform path-lengths

Kamiyama, N., Katoh, N. & Takizawa, A., 12 1 2007, Algorithmic Aspects in Information and Management - Third International Conference, AAIM 2007, Proceedings. p. 178-190 13 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); 巻数 4508 LNCS).

研究成果: 著書/レポートタイプへの貢献会議での発言

Evacuation
Path Length
Efficient Algorithms
Arc of a curve
Polynomials
2 引用 (Scopus)

Deforestation due to population and relief energy through spatially-correlated logit models

Tanaka, S. & Nishii, R., 12 1 2007, 2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007. p. 2310-2313 4 p. 4423303

研究成果: 著書/レポートタイプへの貢献会議での発言

Deforestation
deforestation
relief
Human engineering
energy

Hyperspectral image classification by recursive spatial boosting based on the bootstrap method

Kawaguchi, S. & Nishii, R., 2007, 2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007. p. 1751-1754 4 p. 4423158

研究成果: 著書/レポートタイプへの貢献会議での発言

bootstrapping
Image classification
image classification
AVIRIS
Adaptive boosting
2006

AdaBoost with different costs for misclassification and its applications to contextual image classification

Nishii, R. & Kawaguchi, S., 12 1 2006, Image and Signal Processing for Remote Sensing XII. 巻 6365. 63650S

研究成果: 著書/レポートタイプへの貢献会議での発言

image classification
Adaptive boosting
Misclassification
AdaBoost
Image classification

Contextual image classification based on spatial boosting

Nishii, R., 12 1 2006, 2006 IEEE International Geoscience and Remote Sensing Symposium, IGARSS. p. 2137-2140 4 p. 4241700. (International Geoscience and Remote Sensing Symposium (IGARSS)).

研究成果: 著書/レポートタイプへの貢献会議での発言

Image classification
image classification
Voting machines
Classifiers
Adaptive boosting

Contextual unsupervised classification of remotely sensed imagery with mixels

Kawaguchi, S. & Nishii, R., 12 1 2006, Image and Signal Processing for Remote Sensing XII. 巻 6365. 63650R

研究成果: 著書/レポートタイプへの貢献会議での発言

Unsupervised Classification
imagery
Pixel
Pixels
pixels
1 引用 (Scopus)

Extended spatial logit models of deforestation due to population and relief energy in East Asia

Tanaka, S. & Nishii, R., 12 27 2006, Remote Sensing for Agriculture, Ecosystems, and Hydrology VIII. 巻 6359. 63590G

研究成果: 著書/レポートタイプへの貢献会議での発言

deforestation
Deforestation
Logit Model
Spatial Model
regression analysis
2 引用 (Scopus)

Hyperspectral image classification by AdaBoost with decision stumps based on composed feature variables

Kawaguchi, S. & Nishii, R., 2006, 2006 IEEE International Geoscience and Remote Sensing Symposium, IGARSS. p. 936-939 4 p. 4241388

研究成果: 著書/レポートタイプへの貢献会議での発言

Adaptive boosting
Image classification
image classification
AVIRIS
Classifiers
2005
2 引用 (Scopus)

Spatio-temporal contextual image classification based on spatial AdaBoost

Nishii, R. & Eguchi, S., 2005, 25th Anniversary IGARSS 2005: IEEE International Geoscience and Remote Sensing Symposium. 巻 1. p. 172-175 4 p. 1526132

研究成果: 著書/レポートタイプへの貢献会議での発言

Adaptive boosting
Image classification
image classification
Classifiers
land cover
2004

A new series of rotation invariant moments by Lie transformation group theory

Sakata, T., Nishii, R., Chin, T. S. & Sawae, R., 12 1 2004, Proceedings - Ninth International Workshop on Frontiers in Handwriting Recognition, IWFHR-9 2004. Kimura, F. & Fujisawa, H. (版). p. 377-381 5 p. (Proceedings - International Workshop on Frontiers in Handwriting Recognition, IWFHR).

研究成果: 著書/レポートタイプへの貢献会議での発言

Group theory
3 引用 (Scopus)

Incompressible viscous flow analysis by a domain decomposition method

Kanayama, H., Kume, H. & Tagami, D., 2004, ECCOMAS 2004 - European Congress on Computational Methods in Applied Sciences and Engineering.

研究成果: 著書/レポートタイプへの貢献会議での発言

Domain decomposition methods
Incompressible Viscous Flow
Domain Decomposition Method
Viscous flow
Newton Iteration
5 引用 (Scopus)

Supervised image classification based on AdaBoost with contextual weak classifiers

Nishii, R. & Eguchi, S., 2004, 2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings: Science for Society: Exploring and Managing a Changing Planet. IGARSS 2004. 巻 2. p. 1467-1470 4 p.

研究成果: 著書/レポートタイプへの貢献会議での発言

Adaptive boosting
Image classification
pixel
Classifiers
multispectral image
2000

A domain decomposition approach for magnetic field problems

Hiroshi, K., Ryuji, S., Tagami, D., Takeshi, N. & Masahiro, S., 12 1 2000, European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2000. (European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2000).

研究成果: 著書/レポートタイプへの貢献会議での発言

Domain decomposition methods
Domain Decomposition Method
Domain Decomposition
Magnetic Field
Magnetic fields