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Wyszukujesz frazę "Heidari, S." wg kryterium: Wszystkie pola


Wyświetlanie 1-3 z 3
Tytuł:
Feature selection using particle swarm optimization in text categorization
Autorzy:
Aghdam, M. H.
Heidari, S.
Powiązania:
https://bibliotekanauki.pl/articles/91792.pdf
Data publikacji:
2015
Wydawca:
Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:
classification system
feature selection
text categorization
particle swarm optimization (PSO)
system klasyfikacji
wybór funkcji
kategoryzacja tekstu
optymalizacja rojem cząstek
Opis:
Feature selection is the main step in classification systems, a procedure that selects a subset from original features. Feature selection is one of major challenges in text categorization. The high dimensionality of feature space increases the complexity of text categorization process, because it plays a key role in this process. This paper presents a novel feature selection method based on particle swarm optimization to improve the performance of text categorization. Particle swarm optimization inspired by social behavior of fish schooling or bird flocking. The complexity of the proposed method is very low due to application of a simple classifier. The performance of the proposed method is compared with performance of other methods on the Reuters-21578 data set. Experimental results display the superiority of the proposed method.
Źródło:
Journal of Artificial Intelligence and Soft Computing Research; 2015, 5, 4; 231-238
2083-2567
2449-6499
Pojawia się w:
Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the Female Sexual Objectification in Tennessee Williams’s A Streetcar Named Desire
Autorzy:
Heidari, Himan
Mohammedi, Salahaddin
Powiązania:
https://bibliotekanauki.pl/articles/1188100.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
A Streetcar Named Desire
female self-objectification
sexual objectification
Tennessee Williams
Opis:
Objectification theory, sexual objectification of women, and female self-objectification are new trends in gender studies. When a woman is observed only through her body parts, i.e. as an instrument, she is believed to be sexually objectified. Likewise, when a woman exploits her sexuality, either through wearing revealing clothing or displaying lustful behavior, she is engaged in self-objectification. This paper focuses its attention on the female characters in Tennessee Williams’ A Streetcar Named Desire based on the female objectification theory. It examines Blanche’s past and present behavior and argues that Blanche has undergone sexual objectification and consequently self-objectification. She unconsciously suffers from psychological repercussions resulting from her objectification, namely, her drinking problem and her immersion in a false sense of reality. Furthermore, this paper narrows its scope of analysis down to Stanley’s character as an agent of violence and women subordination and examines his relationship with women objectification.
Źródło:
World Scientific News; 2016, 56; 229-238
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of Headspace Solid Phase Microextraction Procedure for Trace Analysis of Toluene
Autorzy:
Heidari, H. R.
Shahtaheri, S. J.
Golbabaei, F.
Alimohammadi, M.
Rahimi-Froushani, A.
Powiązania:
https://bibliotekanauki.pl/articles/90998.pdf
Data publikacji:
2008
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
headspace
solid phase microextraction
gas chromatography
toluene
Opis:
This study describes optimization of headspace solid phase microextraction followed by gas chromatography equipped with a flame ionization detector for toluene at trace level in spiked urine. The parameters affecting the extraction and gas chromatographic determination of analytes were studied: extraction time and temperature; desorption time and temperature; addition of NaCl; and pH, volume and agitation of the sample. Optimized headspace extraction was carried out at 30 °C for 6 min in the presence of 0.2 g⋅m–1of NaCl in the sample solution. Also, sample volume and sample pH were optimized at 5 ml and 7 (neutral pH), respectively. Desorption of the analytes was carried out at 250 °C for 60 s. The optimized procedure was validated with 3 different pools of spiked urine; it showed good reproducibility over 6 consecutive days and 6 within-day experiments. The study also determined the accuracy, linearity and detection limits of this method.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2008, 14, 4; 395-405
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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