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<HTML> <HEAD> <!--SCRIPT LANGUAGE="JavaScript" SRC="http://a1835.g.akamai.net/f/1835/276/3h/www.netlibrary.com/include/js/dictionary_library.js"></SCRIPT> <SCRIPT LANGUAGE="JavaScript"> if (!opener){document.onkeyup=parent.turnBookPage;} </SCRIPT!--> <META HTTP-EQUIV="Cache-Control" CONTENT="no-cache"> <META HTTP-EQUIV="Pragma" CONTENT="no-cache"> <META HTTP-EQUIV="Expires" CONTENT="-1"><META http-equiv="Content-Type" content="text/html; charset=windows-1252"><SCRIPT>var PrevPage="Page_334";var NextPage="Page_336";var CurPage="Page_335";var PageOrder="342";</SCRIPT> <TITLE>Document</TITLE> </HEAD> <BODY BGCOLOR="#FFFFFF"><CENTER><TABLE BORDER=0 WIDTH=100% CELLPADDING=0><TR><TD ALIGN=CENTER> <TABLE BORDER=0 CELLPADDING=2 CELLSPACING=0 WIDTH=100%> <TR> <TD ALIGN=LEFT><A HREF='Page_334.html'>Previous</A></TD> <TD ALIGN=RIGHT><A HREF='Page_336.html'>Next</A></TD> </TR> </TABLE></TD></TR><TR><TD ALIGN=LEFT><P><A NAME='JUMPDEST_Page_335'/><A NAME='{AFC}'/><TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH='100%'><TR><TD ALIGN=RIGHT><FONT FACE='Times New Roman, Times, Serif' SIZE=2 COLOR=#FF0000>Page 335</FONT></TD></TR></TABLE><A NAME='{AFD}'/><TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0><TR> <TD ROWSPAN=5></TD> <TD COLSPAN=3 HEIGHT=17></TD> <TD ROWSPAN=5></TD></TR><TR> <TD COLSPAN=3></TD></TR><TR><TD></TD> <TD><FONT FACE='Times New Roman, Times, Serif' SIZE=3><B>Visualization</B></FONT></TD><TD></TD></TR><TR> <TD COLSPAN=3></TD></TR><TR> <TD COLSPAN=3 HEIGHT=1></TD></TR></TABLE><A NAME='{AFE}'/><TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0><TR> <TD ROWSPAN=5></TD> <TD COLSPAN=3 HEIGHT=12></TD> <TD ROWSPAN=5></TD></TR><TR> <TD COLSPAN=3></TD></TR><TR><TD></TD> <TD><FONT FACE='Times New Roman, Times, Serif' SIZE=3>Having the ability to get close to your data is very important. The ability to use one of the most powerful instruments of perception—the human eye—is critical in the mining of your website data. A data mining analysis using a machine-learning algorithm, which generates a decision tree, can offer you an insightful view of your website customer database. The tree illustrated in Figure 9-33 provides a segmented view of factors affecting the number of sales at this website.</FONT></TD><TD></TD></TR><TR> <TD COLSPAN=3></TD></TR><TR> <TD COLSPAN=3 HEIGHT=1></TD></TR></TABLE><A NAME='{AFF}'/><TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0><TR> <TD ROWSPAN=5></TD> <TD COLSPAN=3 HEIGHT=12></TD> <TD ROWSPAN=5></TD></TR><TR> <TD COLSPAN=3></TD></TR><TR><TD></TD> <TD><FONT FACE='Times New Roman, Times, Serif' SIZE=3>This decision tree in Figure 9-33 revealed several interesting market segments impacting the number of sales at this website. It discovered that the number of children and additional household and demographic variables impacted the number of sales, which averaged 1.6. The most significant rules discovered were as follows:</FONT><FONT FACE='Times New Roman, Times, Serif' SIZE=3 COLOR=#FFFF00><!-- break --></FONT></TD><TD></TD></TR><TR> <TD COLSPAN=3></TD></TR><TR> <TD COLSPAN=3 HEIGHT=1></TD></TR></TABLE><A NAME='{B00}'/><TABLE CELLPADDING=0 CELLSPACING=0 BORDER=0 WIDTH='100%'><TR><TD HEIGHT=12></TD></TR><TR><TD><TABLE CELLSPACING=0 WIDTH=583 CELLPADDING=5><TR><TD WIDTH=133 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>IF</FONT></TD><TD WIDTH=450 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>Number of Children is greater than or equal to 1.2</FONT></TD></TR><TR><TD WIDTH=133 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>THEN</FONT></TD><TD WIDTH=450 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>Number of Sales was 2.8 for 38% of the sample</FONT></TD></TR><TR><TD WIDTH=133 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>IF</FONT></TD><TD WIDTH=450 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>Number of Children is greater than or equal to 1.2</FONT></TD></TR><TR><TD WIDTH=133 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>AND</FONT></TD><TD WIDTH=450 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>Vehicle Value is Luxury or Unknown</FONT></TD></TR><TR><TD WIDTH=133 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>THEN</FONT></TD><TD WIDTH=450 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>Number of Sales was 2.8 for 23.8% of the sample</FONT></TD></TR><TR><TD WIDTH=133 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>IF</FONT></TD><TD WIDTH=450 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>Number of Children is greater than or equal to 1.2</FONT></TD></TR><TR><TD WIDTH=133 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>AND</FONT></TD><TD WIDTH=450 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>Vehicle Value is Luxury or Unknown</FONT></TD></TR><TR><TD WIDTH=133 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>AND</FONT></TD><TD WIDTH=450 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>Southwestern Families ZIP code is greater than or equal to 40%</FONT></TD></TR><TR><TD WIDTH=133 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>THEN</FONT></TD><TD WIDTH=450 VALIGN=TOP><FONT FACE='Times New Roman, Times, Serif' SIZE=2>Number of Sales was 3.4% for 0.6% of the sample</FONT></TD></TR></TABLE></TD></TR></TABLE><BR><A NAME='{B01}'/><TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH='100%'><TR> <TD ROWSPAN=5></TD> <TD COLSPAN=3 HEIGHT=12></TD> <TD ROWSPAN=5></TD></TR><TR> <TD COLSPAN=3></TD></TR><TR><TD></TD> <TD ALIGN=CENTER><FONT FACE='Times New Roman, Times, Serif' SIZE=3><IMG SRC='0335-01.GIF' BORDER=0 ALT='0335-01.gif' WIDTH=438 HEIGHT=212></FONT></TD><TD></TD></TR><TR> <TD COLSPAN=3></TD></TR><TR> <TD COLSPAN=3 HEIGHT=1></TD></TR></TABLE><A NAME='{B02}'/><TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH='100%'><TR> <TD ROWSPAN=5></TD> <TD COLSPAN=3 HEIGHT=12></TD> <TD ROWSPAN=5></TD></TR><TR> <TD COLSPAN=3></TD></TR><TR><TD></TD> <TD ALIGN=CENTER><FONT FACE='Times New Roman, Times, Serif' SIZE=2>Figure 9-33 <BR>This view highlights the factors resulting in higher sales levels.</FONT></TD><TD></TD></TR><TR> <TD COLSPAN=3></TD></TR><TR> <TD COLSPAN=3 HEIGHT=1></TD></TR></TABLE><A NAME='{B03}'/></FORM></P></TD></TR></TABLE><P><FONT SIZE=0 COLOR=WHITE></CENTER><A NAME="bottom"> </A><!-- netLibrary.com Copyright Notice --> </BODY></HTML>⌨️ 快捷键说明
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