WorldCat Identities

小林泉 1948-

Overview
Works: 38 works in 62 publications in 4 languages and 115 library holdings
Genres: Biography  History  Dictionaries 
Roles: Author, Illustrator, Performer
Publication Timeline
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Most widely held works by 小林泉
Minami no shima no Nihonjin : mō hitotsu no sengoshi by Izumi Kobayashi( Book )

2 editions published in 2010 in Japanese and held by 18 WorldCat member libraries worldwide

Tai ping yang dao yu ge bang jian guo shi by Izumi Kobayashi( Book )

4 editions published between 1994 and 1997 in Japanese and Chinese and held by 10 WorldCat member libraries worldwide

Sensitivity analysis of the topology of classification trees by Izumi Kobayashi( )

1 edition published in 1999 in Undetermined and held by 8 WorldCat member libraries worldwide

The use of classification trees is one of the most widely used techniques in classification. It is well known that classification trees are not stable in their topology, in contrast to their robustness with respect to misclassification rate. This thesis defines a measure that compares the topology of two trees and studies how a tree's topology changes when the dependent (y) variable or the independent (x) variables are perturbed. This allows us to examine the "robustness" of tree topology under perturbation and to compare it to the robustness with respect to the misclassification rate under the same perturbations. We show that the tree topology can change significantly even for small perturbations in many sets of data. This suggests that even small measurement errors in the variables can affect the tree topology greatly. Because data are often measured with error, it follows that splitting rules in trees may not be suitable for use in making policy decisions. We propose a measure for tree topology, and show that tree topology changes faster than the misclassification rate does under mild perturbations. This finding formalizes the concept that tree models are more stable in terms of misclassification rate than in terms of topology
Amerika gokuhi bunsho to shintaku tōchi no shūen : Soromon hōkoku, Mikuroneshia no dokuritsu by Izumi Kobayashi( Book )

2 editions published in 1994 in Japanese and held by 7 WorldCat member libraries worldwide

Wild and lonely by Associates (Rock group)( Recording )

in Undetermined and held by 6 WorldCat member libraries worldwide

Oseania o shiru jiten = Cyclopedia of Oceania( Book )

2 editions published in 2010 in Japanese and held by 6 WorldCat member libraries worldwide

Izumi Kobayashi - Bilder( Book )

3 editions published between 1992 and 1995 in German and held by 5 WorldCat member libraries worldwide

Mikuroneshia no Nikkeijin : Nikkeijin Dainshūchō Aizawa monogatari by Izumi Kobayashi( Book )

1 edition published in 2007 in Japanese and held by 5 WorldCat member libraries worldwide

Sensitivity Analysis of the Topology of Classification Trees by Izumi Kobayashi( Book )

4 editions published in 1999 in English and held by 4 WorldCat member libraries worldwide

The use of classification trees is one of the most widely used techniques in classification. It is well known that classification trees are not stable in their topology, in contrast to their robustness with respect to misclassification rate. This thesis defines a measure that compares the topology of two trees and studies how a tree's topology changes when the dependent (y) variable or the independent (x) variables are perturbed. This allows us to examine the "robustness" of tree topology under perturbation and to compare it to the robustness with respect to the misclassification rate under the same perturbations. We show that the tree topology can change significantly even for small perturbations in many sets of data. This suggests that even small measurement errors in the variables can affect the tree topology greatly. Because data are often measured with error, it follows that splitting rules in trees may not be suitable for use in making policy decisions. We propose a measure for tree topology, and show that tree topology changes faster than the misclassification rate does under mild perturbations. This finding formalizes the concept that tree models are more stable in terms of misclassification rate than in terms of topology
Chiiki kenkyū gairon by Izumi Kobayashi( Book )

2 editions published in 2002 in Japanese and held by 4 WorldCat member libraries worldwide

Mikuroneshia no chiisana kuniguni( Book )

2 editions published in 1982 in Japanese and held by 4 WorldCat member libraries worldwide

Randomized Ensemble Methods for Classification Trees by Izumi Kobayashi( Book )

4 editions published in 2002 in English and held by 3 WorldCat member libraries worldwide

We propose two methods of constructing ensembles of classifiers, One method directly injects randomness into classification tree algorithms by choosing a split randomly at each node with probabilities proportional to the measure of goodness for a split We combine this method with a stopping rule which uses permutation of the outputs The other method perturbs the output and constructs a classifier using the perturbed data, In both methods, the final classifier is given by an unweighted vote of the individual classifiers, These methods are compared with bagging, Adaboost, and random forests on thirteen commonly used data sets, The results show that our methods perform better than bagging, and comparably to Adaboost and random forests on average, Additional computation shows that our perturbation method could improve its performance by perturbing both the inputs and with the outputs, and combining a sufficiently large number of trees, Plots of strength and correlation show an interesting relationship, We also explore combining sampling subsets of the training set with our proposed methods, The results of a few trials show that the performance of our proposed methods could be improved by combining sampling subsets of the training set
Tateshinayama to zaisan kumiai( Book )

3 editions published in 1957 in Japanese and held by 3 WorldCat member libraries worldwide

The Pacific way : a memoir by Kamisese Mara( Book )

3 editions published in 2000 in Japanese and held by 3 WorldCat member libraries worldwide

Now, as the appointed President of Fiji, he is sustained by wide popular acclaim and affection. Very few Pacific leaders have published their opinions and perspectives on such a wide range of issues and topics. His memoir will be of interest to Pacific historians, political scientists, and anthropologists, as well as the general reader
Indoneshia buyō kōen tabisuru maijin : dentō kara gendai e( Book )

1 edition published in 1999 in Japanese and held by 2 WorldCat member libraries worldwide

Chūgoku taiwan no gekitotsu : Taiheiyō o meguru kokusai kankei( Book )

1 edition published in 2009 in Japanese and held by 2 WorldCat member libraries worldwide

Mikuroneshia renpō kasereria( Book )

2 editions published in 1986 in Japanese and held by 2 WorldCat member libraries worldwide

Oseania( Book )

1 edition published in 2008 in Japanese and held by 2 WorldCat member libraries worldwide

Mikuroneshia no nikkeijin : Nikkei daishūchō aizawa monogatari( Book )

1 edition published in 2007 in Japanese and held by 2 WorldCat member libraries worldwide

Sangyō kaihatsu to dentō no hen'yō : Mikuroneshia renpō no keizai jijō( Book )

1 edition published in 2007 in Japanese and held by 2 WorldCat member libraries worldwide

 
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Audience level: 0.79 (from 0.32 for Sensitivit ... to 0.94 for Izumi Koba ...)

Alternative Names
Kobayashi, Izumi

Kobayashi, Izumi 1948-

Kobayasi, Izumi

Кобаяси, Идзуми

コバヤシ, イズミ

コバヤシ, イズミ 1948-

小林泉 1948-

Languages