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            <front>

                <journal-meta>
                                                                <journal-id>bilturk</journal-id>
            <journal-title-group>
                                                                                    <journal-title>BİLTÜRK Ekonomi ve İlişkili Çalışmalar Dergisi</journal-title>
            </journal-title-group>
                                        <issn pub-type="epub">2667-5927</issn>
                                                                                            <publisher>
                    <publisher-name>Fatih DEYNELİ</publisher-name>
                </publisher>
                    </journal-meta>
                <article-meta>
                                        <article-id pub-id-type="doi">10.47103/bilturk.1039669</article-id>
                                                                <article-categories>
                                            <subj-group  xml:lang="en">
                                                            <subject>Economics</subject>
                                                            <subject>Business Administration</subject>
                                                    </subj-group>
                                            <subj-group  xml:lang="tr">
                                                            <subject>Ekonomi</subject>
                                                            <subject>İşletme </subject>
                                                    </subj-group>
                                    </article-categories>
                                                                                                                                                        <title-group>
                                                                                                                        <article-title>Forecasting BIST 100 Index with Artificial Neural Networks and Regression Analysis</article-title>
                                                                                                                                                                                                <trans-title-group xml:lang="tr">
                                    <trans-title>Forecasting BIST 100 Index with Artificial Neural Networks and Regression Analysis</trans-title>
                                </trans-title-group>
                                                                                                    </title-group>
            
                                                    <contrib-group content-type="authors">
                                                                        <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0002-0983-1455</contrib-id>
                                                                <name>
                                    <surname>Ünvan</surname>
                                    <given-names>Yüksel Akay</given-names>
                                </name>
                                                                    <aff>Ankara Yıldırım Beyazıt Üniversitesi</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0002-4722-0911</contrib-id>
                                                                <name>
                                    <surname>Ergenç</surname>
                                    <given-names>Cansu</given-names>
                                </name>
                                                                    <aff>ANKARA YILDIRIM BEYAZIT ÜNİVERSİTESİ</aff>
                                                            </contrib>
                                                                                </contrib-group>
                        
                                        <pub-date pub-type="pub" iso-8601-date="20220131">
                    <day>01</day>
                    <month>31</month>
                    <year>2022</year>
                </pub-date>
                                        <volume>4</volume>
                                        <issue>1</issue>
                                        <fpage>20</fpage>
                                        <lpage>32</lpage>
                        
                        <history>
                                    <date date-type="received" iso-8601-date="20211222">
                        <day>12</day>
                        <month>22</month>
                        <year>2021</year>
                    </date>
                                                    <date date-type="accepted" iso-8601-date="20220110">
                        <day>01</day>
                        <month>10</month>
                        <year>2022</year>
                    </date>
                            </history>
                                        <permissions>
                    <copyright-statement>Copyright © 2019, BİLTÜRK Ekonomi ve İlişkili Çalışmalar Dergisi</copyright-statement>
                    <copyright-year>2019</copyright-year>
                    <copyright-holder>BİLTÜRK Ekonomi ve İlişkili Çalışmalar Dergisi</copyright-holder>
                </permissions>
            
                                                                                                <abstract><p>Making reliable forecasts is very important for financial analysis. For this reason, financial analysts make analyzes using different models. Financial analysts try to make the most accurate estimation in these analyzes. The artificial neural network model is a widely used method in the field of finance.  In this study, BIST 100 index was estimated using artificial neural networks and regression model. By using the closing prices of the BIST 100 index between 2010 and 2020, the closing values of the BIST 100 index for 2021 were estimated. Moreover, the regression model and artificial neural network model predictions were obtained. The mean square error of the neural networks and regression model was also found. Finally, according to the result of the mean of error squares, the performance of the models was compared and seen that the artificial neural network model was better.</p></abstract>
                                                                                                                                    <trans-abstract xml:lang="tr">
                            <p>Making reliable forecasts is very important for financial analysis. For this reason, financial analysts make analyzes using different models. Financial analysts try to make the most accurate estimation in these analyzes. The artificial neural network model is a widely used method in the field of finance.  In this study, BIST 100 index was estimated using artificial neural networks and regression model. By using the closing prices of the BIST 100 index between 2010 and 2020, the closing values of the BIST 100 index for 2021 were estimated. Moreover, the regression model and artificial neural network model predictions were obtained. The mean square error of the neural networks and regression model was also found. Finally, according to the result of the mean of error squares, the performance of the models was compared and seen that the artificial neural network model was better.</p></trans-abstract>
                                                            
            
                                                            <kwd-group>
                                                    <kwd>Artificial Neural Network</kwd>
                                                    <kwd>  Regression</kwd>
                                                    <kwd>  BIST 100</kwd>
                                                    <kwd>  Forecasts</kwd>
                                            </kwd-group>
                                                        
                                                                            <kwd-group xml:lang="tr">
                                                    <kwd>Artificial Neural Network</kwd>
                                                    <kwd>  Regression</kwd>
                                                    <kwd>  BIST 100</kwd>
                                                    <kwd>  Forecasts</kwd>
                                            </kwd-group>
                                                                                                            </article-meta>
    </front>
    <back>
                            <ref-list>
                                    <ref id="ref1">
                        <label>1</label>
                        <mixed-citation publication-type="journal">Aiken, L. S., &amp; West, S. G. Reno., RR (1991). Multiple regression: Testing and interpreting interactions.</mixed-citation>
                    </ref>
                                    <ref id="ref2">
                        <label>2</label>
                        <mixed-citation publication-type="journal">Altan, A., &amp; Karasu, S. (2019). The effect of kernel values in support vector machine to forecasting performance of financial time series. The Journal of Cognitive Systems, 4(1), 17-21.</mixed-citation>
                    </ref>
                                    <ref id="ref3">
                        <label>3</label>
                        <mixed-citation publication-type="journal">Benrhmach, G., Namir, K., Namir, A., &amp; Bouyaghroumni, J. (2020). Nonlinear autoregressive neural network and extended Kalman filters for prediction of financial time series. Journal of Applied Mathematics, 2020.</mixed-citation>
                    </ref>
                                    <ref id="ref4">
                        <label>4</label>
                        <mixed-citation publication-type="journal">Cao, J., Li, Z., &amp; Li, J. (2019). Financial time series forecasting model based on CEEMDAN and LSTM. Physica A: Statistical Mechanics and its Applications, 519, 127-139.</mixed-citation>
                    </ref>
                                    <ref id="ref5">
                        <label>5</label>
                        <mixed-citation publication-type="journal">Cao, Q., Parry, M. E., &amp; Leggio, K. B. (2011). The three-factor model and artificial neural networks: predicting stock price movement in China. Annals of Operations Research, 185(1), 25-44.</mixed-citation>
                    </ref>
                                    <ref id="ref6">
                        <label>6</label>
                        <mixed-citation publication-type="journal">Carvalhal, A., &amp; Ribeiro, T. (2008). Do artificial neural networks provide better forecasts? Evidence from Latin American stock indexes. Latin American Business Review, 8(3), 92-110.</mixed-citation>
                    </ref>
                                    <ref id="ref7">
                        <label>7</label>
                        <mixed-citation publication-type="journal">Diaz, J. F., &amp; Nguyen, T. T. (2021). Application of grey relational analysis and artificial neural networks on corporate social responsibility (CSR) indices. Journal of Sustainable Finance &amp; Investment, 1-19.</mixed-citation>
                    </ref>
                                    <ref id="ref8">
                        <label>8</label>
                        <mixed-citation publication-type="journal">Elliott, G., &amp; Timmermann, A. (2008). Economic forecasting. Journal of Economic Literature, 46(1), 3-56.
	
KangaraniFarahani, M., &amp; Mehralian, S. (2013, August). Comparison between artificial neural network and neuro-fuzzy for gold price prediction. In 2013 13th Iranian Conference on Fuzzy Systems (IFSC) (pp. 1-5). IEEE.</mixed-citation>
                    </ref>
                                    <ref id="ref9">
                        <label>9</label>
                        <mixed-citation publication-type="journal">Fisher, R. A. (1922). The goodness of fit of regression formulae, and the distribution of regression coefficients. Journal of the Royal Statistical Society, 85(4), 597-612.
	
Gauss, C. F. (1809). Theoria motus corporum coelestium in sectionibus conicis solem ambientium auctore Carolo Friderico Gauss. sumtibus Frid. Perthes et IH Besser.
	
Lawrence, R. (1997). Using neural networks to forecast stock market prices. University of Manitoba, 333, 2006-2013.</mixed-citation>
                    </ref>
                                    <ref id="ref10">
                        <label>10</label>
                        <mixed-citation publication-type="journal">Lenel, L., Köster, R., &amp; Fritsche, U. (2020). Introduction (Futures Past. Economic Forecasting in the 20th and 21st Century). Futures Past. Economic Forecasting in the 20th and 21st Century.</mixed-citation>
                    </ref>
                                    <ref id="ref11">
                        <label>11</label>
                        <mixed-citation publication-type="journal">Maciel, L. S., &amp; Ballini, R. (2008). Design a neural network for time series financial forecasting: Accuracy and robustness analysis. Anales do 9º Encontro Brasileiro de Finanças, Sao Pablo, Brazil.</mixed-citation>
                    </ref>
                                    <ref id="ref12">
                        <label>12</label>
                        <mixed-citation publication-type="journal">Maind, S. B., &amp; Wankar, P. (2014). Research paper on basic of artificial neural network. International Journal on Recent and Innovation Trends in Computing and Communication, 2(1), 96-100.</mixed-citation>
                    </ref>
                                    <ref id="ref13">
                        <label>13</label>
                        <mixed-citation publication-type="journal">Molla, B., Cagil, G., &amp; Uyaroglu, Y. (2021). Chaotic analysis of BIST 100 return time series and short-term predictability with ANFIS.</mixed-citation>
                    </ref>
                                    <ref id="ref14">
                        <label>14</label>
                        <mixed-citation publication-type="journal">Montgomery, D. C., Peck, E. A., &amp; Vining, G. G. (2021). Introduction to linear regression analysis. John Wiley &amp; Sons.</mixed-citation>
                    </ref>
                                    <ref id="ref15">
                        <label>15</label>
                        <mixed-citation publication-type="journal">Ozbey, F., &amp; Paksoy, S. (2020). GARCH Ailesi Modelleri ve ANN Entegrasyonu ile BİST 100 Endeks Getirisinin Volatilite Tahmini 1. Business and Economics Research Journal, 11(2), 385-396.
	
Patel, L., &amp; Gaurav, K. A. (2020). Introduction to Machine Learning and Its Application. In Applications of Artificial Intelligence in Electrical Engineering (pp. 262-290). IGI Global.</mixed-citation>
                    </ref>
                                    <ref id="ref16">
                        <label>16</label>
                        <mixed-citation publication-type="journal">Pradeepkumar, D., &amp; Ravi, V. (2017). Forecasting financial time series volatility using particle swarm optimization trained quantile regression neural network. Applied Soft Computing, 58, 35-52.</mixed-citation>
                    </ref>
                                    <ref id="ref17">
                        <label>17</label>
                        <mixed-citation publication-type="journal">Schroeder, L. D., Sjoquist, D. L., &amp; Stephan, P. E. (2016). Understanding regression analysis: An introductory guide (Vol. 57). Sage Publications.</mixed-citation>
                    </ref>
                                    <ref id="ref18">
                        <label>18</label>
                        <mixed-citation publication-type="journal">Seber, G. A., &amp; Lee, A. J. (2012). Linear regression analysis (Vol. 329). John Wiley &amp; Sons.</mixed-citation>
                    </ref>
                                    <ref id="ref19">
                        <label>19</label>
                        <mixed-citation publication-type="journal">Siami-Namini, S., &amp; Namin, A. S. (2018). Forecasting economics and financial time series: ARIMA vs. LSTM. arXiv preprint arXiv:1803.06386.</mixed-citation>
                    </ref>
                                    <ref id="ref20">
                        <label>20</label>
                        <mixed-citation publication-type="journal">Wieland, V., &amp; Wolters, M. (2013). Forecasting and policy making. In Handbook of economic forecasting (Vol. 2, pp. 239-325). Elsevier.</mixed-citation>
                    </ref>
                                    <ref id="ref21">
                        <label>21</label>
                        <mixed-citation publication-type="journal">Xiong, T., Bao, Y., &amp; Hu, Z. (2014). Multiple-output support vector regression with a firefly algorithm for interval-valued stock price index forecasting. Knowledge-Based Systems, 55, 87-100.</mixed-citation>
                    </ref>
                                    <ref id="ref22">
                        <label>22</label>
                        <mixed-citation publication-type="journal">Yule, G. U. (1897). On the theory of correlation. Journal of the Royal Statistical Society, 60(4), 812-854.</mixed-citation>
                    </ref>
                                    <ref id="ref23">
                        <label>23</label>
                        <mixed-citation publication-type="journal">Zhang, G. P., &amp; Berardi, V. L. (2001). Time series forecasting with neural network ensembles: an application for exchange rate prediction. Journal of the operational research society, 52(6), 652-664.</mixed-citation>
                    </ref>
                            </ref-list>
                    </back>
    </article>
