AKYOL Z., 2009, J DISTANCE ED, V23;ANDERSON T., 2001, J ASYNCHRONOUS LEARN, V5, P1, DOI 10.24059/OLJ.V5I2.1875, DOI 10.24059/OLJ.V5I2.1875;ANDERSON T, 2011, INT REV RES OPEN DIS, V12, P80, DOI 10.19173/IRRODL.V12I3.890;ARBAUGH JB, 2010, INTERNET HIGH EDUC, V13, P37, DOI 10.1016/J.IHEDUC.2009.10.006;ARBAUGH JB, 2008, INTERNET HIGH EDUC, V11, P133, DOI 10.1016/J.IHEDUC.2008.06.003;ARCHER W., 2001, AM J DISTANCE ED, V15, P7, DOI 10.1080/08923640109527071, DOI 10.1080/08923640109527071;BREIMAN L, 2001, MACH LEARN, V45, P5, DOI 10.1023/A:1010933404324;BUTLER DL, 1995, REV EDUC RES, V65, P245, DOI 10.2307/1170684;CHAWLA NV, 2002, J ARTIF INTELL RES, V16, P321, DOI 10.1613/JAIR.953;CORICH S., 2012, J E LEARNING KNOWLED, V2;DE WEVER B, 2006, COMPUT EDUC, V46, P6, DOI 10.1016/J.COMPEDU.2005.04.005;DEERWESTER S, 1990, J AM SOC INFORM SCI, V41, P391, DOI 10.1002/(SICI)1097-4571(199009)41:6<391::AID-ASI1>3.0.CO;2-9;DEWEY J, 1897, EARLY WORKS, V54, P77, DOI DOI 10.1086/651519;DONMEZ P, 2005, CSCL 2005: COMPUTER SUPPORTED COLLABORATIVE LEARNING 2005: THE NEXT 10 YEARS, PROCEEDINGS, P125;DONNELLY R, 2011, INTERACT LEARN ENVIR, V19, P303, DOI 10.1080/10494820903075722;DOWELL, 2015, P 8 INT C ED DAT MIN;FERNANDEZ-DELGADO M, 2014, J MACH LEARN RES, V15, P3133;FERRAGINA P, 2012, IEEE SOFTWARE, V29, P70, DOI 10.1109/MS.2011.122;FOLTZ PW, 1998, DISCOURSE PROCESS, V25, P285, DOI 10.1080/01638539809545029;GABRILOVICH E, 2007, 20TH INTERNATIONAL JOINT CONFERENCE ON ARTIFICIAL INTELLIGENCE, P1606;GARRISON D. R., 1999, INTERNET AND HIGHER EDUCATION, V2, P87, DOI 10.1016/S1096-7516(00)00016-6;GARRISON DR, 2010, INTERNET HIGH EDUC, V13, P31, DOI 10.1016/J.IHEDUC.2009.10.002;GARRISON DR, 2010, INTERNET HIGH EDUC, V13, P5, DOI 10.1016/J.IHEDUC.2009.10.003;GASEVIC D, 2015, INTERNET HIGH EDUC, V24, P53, DOI 10.1016/J.IHEDUC.2014.09.006;GETOOR L, 2007, INTRO STAT RELATIONA;GORSKY P, 2012, INT REV RES OPEN DIS, V13, P17, DOI 10.19173/IRRODL.V13I1.1073;GRAESSER AC, 2011, EDUC RESEARCHER, V40, P223, DOI 10.3102/0013189X11413260;HOLSTI OR, 1969, CONTENT ANAL SOCIAL;JOKSIMOVI S., 2015, P 5 INT C LEARN AN K, P156, DOI DOI 10.1145/2723576.2723609;JOKSIMOVIC S., 2015, EXPLORING ACCU UNPUB;JOKSIMOVIC S, 2014, INTERNET HIGH EDUC, V22, P1, DOI 10.1016/J.IHEDUC.2014.03.001;KOTCZ, 2004, ACM SIGKDD EXPLORATI, V6, P1, DOI 10.1145/1007730.1007733, DOI 10.1145/1007730.1007733;KOVANOVIC V., 2015, HDB LEARNING ANAL;KOVANOVIC VITOMIR, 2014, P WORKSH LAK 2014 C;KRIPPENDORFF, 2003, CONTENT ANAL INTRO I;LAFFERTY J., 2001, P 18 INT C MACH LEAR;LANDIS JR, 1977, BIOMETRICS, V33, P159, DOI 10.2307/2529310;LIAW A., 2002, R NEWS, V2, P18;LOUPPE G., 2013, ADV NEURAL INFORM PR, V26;LUPPICINI R, 2007, INSTR SCI, V35, P141, DOI 10.1007/S11251-006-9001-6;MAYFIELD E., 2010, P 12 ANN C GEN EV CO, P1299;MCKLIN TOM, 2004, THESIS;MCNAMARA DS, 2014, AUTOMATED EVALUATION OF TEXT AND DISCOURSE WITH COH-METRIX, P1, DOI 10.1017/CBO9780511894664;MU J, 2012, INT J COMP-SUPP COLL, V7, P285, DOI 10.1007/S11412-012-9147-Y;PABLO N. M., 2011, P 7 INT C SEM SYST, P1, DOI DOI 10.1145/2063518.2063519;PAGE EB, 1995, PHI DELTA KAPPAN, V76, P561;PARK CL, 2009, J INTERACT ONLINE LE, V8, P140;ROURKE L, 1999, J DISTANCE ED, V14, P50;ROURKE L., 2001, INT J ARTIFICIAL INT, V12, P8;STONE P. J., 1966, GEN INQUIRER COMPUTE;STRIJBOS JW, 2011, IEEE T LEARN TECHNOL, V4, P59, DOI 10.1109/TLT.2010.37;STRIJBOS JW, 2006, COMPUT EDUC, V46, P29, DOI 10.1016/J.COMPEDU.2005.04.002;STRUBE M., 2006, WIKIRELATE COMPUTING, V6, P1419;TAN P., 2005, INTRO DATA MINING;TAUSCZIK YR, 2010, J LANG SOC PSYCHOL, V29, P24, DOI 10.1177/0261927X09351676;VAPNIK V. N., 1998, STAT LEARNING THEORY;VASSILEVA J, 2008, IEEE T LEARN TECHNOL, V1, P199, DOI 10.1109/TLT.2009.4;VAUGHAN N., 2005, INTERNET AND HIGHER EDUCATION, V8, P1, DOI 10.1016/J.IHEDUC.2004.11.001;WATERS Z., 2015, P 11 AS INF RETR SOC;WESTON S., 2015, CARET CLASSIFICATION;WITTEN IH, 2011, MOR KAUF D, P1;ZOUAQ A, 2008, IEEE T LEARN TECHNOL, V1, P49, DOI 10.1109/TLT.2008.12