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The Point Nuisance Method as a decision-support system based on bayesian inference approach

Rusek Janusz

Archives of Mining Sciences

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2020

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Vol. 65, no. 1

117--127

EN

The article attempts to transfer information from the Point Nuisance Method (PNM) used in Poland in the issue of protection of buildings in mining areas, to the system of inference based on Bayesian formalism. For this purpose, all possible combinations occurring in PNM were selected. The number of numerically generated patterns was 6,718,464 cases. Then, based on Python package Scikit-Learn, a classification model was created in the form of the Naïve Bayes Classifier (NBC). The effectiveness of three methods used to build this type of decision-support system was analysed, from which the Categorical Multinomial Naive Bayes (CMNB) approach was finally selected. With the created classifier, its properties were verified in terms of quality of classify and generalization. For this purpose a general approach was used, analysing the level of accuracy of the model in relation to training and teaching data, and detailed, based on the analysis of the confusion matrix. Additionally, the operation of the created classifier was simulated to determine the optimal Laplace smoothing parameter α. The article ends with conclusions from the carried out calculations, in which an attempt was made to answer the question concerning potential reasons for incorrect classification of the created CMNB model. The discussion ends with a reference to the planned research, in which, among other things, the use of more complex Bayesian belief networks (BBN) is planned.

2

Ocena odporności budynków na wpływ wstrząsów górniczych

Muszyński L.

Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa

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2008

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Wyd. spec. nr 6

315-330

PL

W artykule omówiono sposoby wyznaczania odporności dynamicznej budynków na wpływ wstrząsów górniczych, wykorzystywane najczęściej w krajowym górnictwie podziemnym, głównie na terenach GZW i LGOM. Przedstawione sposoby znajdują zastosowanie w odniesieniu do budynków, które nie były projektowane z uwzględnieniem wpływu wstrząsów górniczych. W referacie odniesiono się również do zagadnienia odporności dynamicznej budynków projektowanych z uwzględnieniem wpływu wstrząsów górniczych.

EN

In the paper, the ways of determining the dynamic resistance of buildings on impact of mining shocks were discussed, used most often in national underground mining, mainly on GZW (Upper Silesian Coal Basin) and LGOM (Copper Region of Legnica and Głogów) terrains. The presented methods find use in relation to buildings, which have not been designed regarding the impact of mining shocks. The paper is also referring to the question of dynamic resistance of buildings, being designed regarding the impact of mining locks.

3

Ocena odporności budynków na ciągłe deformacje powierzchni

Mika W.

Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa

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2008

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Wyd. spec. nr 6

285-302

PL

Artykuł dotyczy oceny odporności budynków na ciągłe deformacje powierzchni, wywołane wpływami eksploatacji górniczej. Omówiono kryteria oceny odporności budynków, stosowane metody oceny oraz ich wady i zalety. Podano także ogólne zasady postępowania w zakresie oceny odporności istniejących obiektów budowlanych.

EN

The paper concerns assessment of resistance of buildings to continuous deformations of surface caused by mining exploitation. Criteria of the assessment of buildings' resistance, applied methods of assessment, as well as their weak sides and advantages were discussed. General rules of proceeding concerning assessment of the resistance of existing building objects were also presented.