557 lines
32 KiB
Text
557 lines
32 KiB
Text
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta name="PubMed Logs" content="PubMed logs data">
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<title>PubMed User Behavior Study</title>
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</head>
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<body>
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<table>
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<tr><td valign=top >
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<br>
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<font color=DarkBlue>
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<span style="font-size: 15px; face=arial">COMPUTATIONAL BIOLOGY BRANCH</span><br>
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<span style="font-size: 15px; "><i>Biomedical information retrieval and text analysis</i></span>
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</td>
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<td width = "50%">
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</td>
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<td align="right"> <a href="www.ncbi.nlm.nih.gov"> <img src="left.gif" border="1" ></a><br>
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</td>
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</tr>
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</table>
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<hr style="border-top-width: 1px; border-top-style: solid; border-top-color: rgb(200,120,180);
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border-right-width: 1px; border-right-style: solid; border-right-color: rgb(200,120,180); border-bottom-width: 1px;
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border-bottom-style: solid; border-bottom-color: rgb(200,120,180); border-left-width: 1px; border-left-style: solid;
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border-left-color: rgb(200,120,180); ">
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<table style="border-top-width: 0px; border-top-style: none; border-top-color: -moz-use-text-color; border-right-width: 0px; border-right-style: none; border-right-color: -moz-use-text-color; border-bottom-width: 0px; border-bottom-style: none; border-bottom-color: -moz-use-text-color; border-left-width: 0px; border-left-style: none; border-left-color: -moz-use-text-color; " width="100%">
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<tbody>
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<tr>
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<font color=DarkBlue>
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<td valign="Left" width="20%">
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<a href="#download">Instructions for log data download</a><br><br>
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<a href="#useraction">Results on comparing log data</a>
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<ul>
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<li><a href="#useraction">Comparing user actions</a><br><br>
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<li><a href="#query">Comparing query statistics</a><br><br>
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<li><a href="#rank">Comparing click positions</a><br><br>
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<li><a href="#result">Comparing search result size</a><br><br>
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</td>
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<td valign=top width="60%">
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<font color=DarkBlue>
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<p> <span style="font-size: 20px; ">
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Understanding PubMed® user search behavior through log analysis</p></span>
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<font face="calibri" size="4.5pt">
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Abstract: An investigation of user search behaviors was conducted through the analysis of one month of PubMed logs.
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Each step of users' interactions with PubMed during a biomedical search process is characterized in detail
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with evidence from PubMed logs. Despite sharing many features in common with general Web searches,
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biomedical information searches have unique characteristics that were evidenced in this study.
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An analysis of these characteristics plays a critical role in identifying users' information
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needs and their search habits and, in turn, provides useful insight to improve biomedical information
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retrieval through PubMed. Click <a href="http://database.oxfordjournals.org/cgi/content/full/2009/0/bap018">here</a> for full text.
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<p>
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Authors: Rezarta Islamaj Dogan, G. Craig Murray, Aurélie Névéol <br />
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and Zhiyong Lu</p>
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<p>
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Please use this as a reference when citing this work: Database (2009) Vol. 2009, bap018; doi:10.1093/database/bap018</p>
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Contacts: luzh@ncbi.nlm.nih.gov; islamaj@ncbi.nlm.nih.gov</p>
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</font>
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</td>
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<td valign="Top" align="Right"><img src="researcher_cartoon.png" border="0" width="160" height="200">
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</td>
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</tr>
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</tbody>
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</table>
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</ul></ul>
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<hr style="border-top-width: 1px; border-top-style: solid; border-top-color: rgb(200,120,180);
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border-left-color: rgb(200,120,180); ">
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<p class=MsoTitle3 style='mso-pagination:none'><span lang=en-US
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style='font-size:13.8pt;line-height:113%;font-family:"Trebuchet MS";language:
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en-US;mso-ansi-language:en-US'>Instructions for data download<o:p></o:p></span></p>
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</a>
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<ul>
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<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
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style='font-size:13.0pt;font-family:Calibri;mso-default-font-family:Calibri;
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mso-ascii-font-family:Calibri;mso-latin-font-family:Calibri;mso-greek-font-family:
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Calibri;mso-cyrillic-font-family:Calibri;mso-armenian-font-family:Calibri;
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mso-hebrew-font-family:Calibri;mso-currency-font-family:Calibri;mso-latinext-font-family:
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Calibri;language:en-US;mso-ansi-language:en-US'>This file contains the anonymized PubMed log data for March 01, 2008.</span><span
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lang=en-US style='font-size:13.0pt;language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
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<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
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style='font-size:13.0pt;font-family:Calibri;mso-default-font-family:Calibri;
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mso-ascii-font-family:Calibri;mso-latin-font-family:Calibri;mso-greek-font-family:
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Calibri;mso-cyrillic-font-family:Calibri;mso-armenian-font-family:Calibri;
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mso-hebrew-font-family:Calibri;mso-currency-font-family:Calibri;mso-latinext-font-family:
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Calibri;language:en-US;mso-ansi-language:en-US'>Each line contains tab-delimited fields as follows:<br>
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1. Scrambled user session ID <br>
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2. Time stamp given in the form of seconds from midnight.<br>
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3. User action ("query", "abstract" or "fulltext")<br>
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4. Number of tokens in the query if user action is "query", "-" otherwise<br>
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5. Number of returned citations if user action is "query", "-" otherwise<br>
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6. Ordinal position of the clicked citation if user action is "abstract"<br>
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<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
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style='font-size:13.0pt;font-family:Calibri;mso-default-font-family:Calibri;
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mso-ascii-font-family:Calibri;mso-latin-font-family:Calibri;mso-greek-font-family:
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Calibri;mso-cyrillic-font-family:Calibri;mso-armenian-font-family:Calibri;
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ccccccccew-font-family:Calibri;mso-currency-font-family:Calibri;mso-latinext-font-family:
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Calibri;language:en-US;mso-ansi-language:en-US'>Click <a href="sample.txt">here</a> to see a small sample (10,000 lines) of the anonymized and transformed log data. <br>
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The entire data for March 2008 can be downloaded <a href="march08.tar">here</a> (900M)<span><span lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
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</ul>
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<hr style="border-top-width: 1px; border-top-style: solid; border-top-color: rgb(200,120,180);
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border-right-width: 1px; border-right-style: solid; border-right-color: rgb(200,120,180); border-bottom-width: 1px;
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border-bottom-style: solid; border-bottom-color: rgb(200,120,180); border-left-width: 1px; border-left-style: solid;
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border-left-color: rgb(200,120,180); ">
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<A Name="useraction">
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<p class=MsoTitle3 style='mso-pagination:none'><span lang=en-US
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style='font-size:13.8pt;line-height:113%;font-family:"Trebuchet MS";language:
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en-US;mso-ansi-language:en-US'>Results on comparing log data of March 08 vs. February 09<o:p></o:p></span></p>
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</a>
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<p class=MsoNormal style='mso-pagination:none;margin-left:27.0pt;
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'><span lang=en-US style='language:en-US;mso-ansi-language:
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en-US;mso-bidi-language:ar-SA'>In order to investigate the temporal factor and other ephemeral trends, <br>
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we analyzed same kind of log data for February 2009 and compared <br>
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its results to those based on March, 2008. <o:p></o:p></span></p>
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<p class=MsoAccentText style='mso-pagination:none'><span lang=en-US
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style='language:en-US;mso-ansi-language:en-US'><b>Comparing user actions</b> (note that there are 31 days in March 2008, whereas only 28 days in Feburary 2009)<o:p></o:p></span></p>
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<table style='display:inline' cellpadding=0 cellspacing=0 width=504 height=282
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border=0 dir=ltr style='width:378.12pt;height:211.3944pt;border-collapse:collapse' ID="Table1">
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<tr>
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<td width=168 height=24 valign=Top bgcolor=white style='width:126.04pt;
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height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:white;
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solid #4F81BD 1.0pt;border-bottom:solid #4F81BD 3.0pt'>
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<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
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style='font-size:12.0pt;font-family:Cambria;mso-default-font-family:Cambria;
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mso-ascii-font-family:Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:
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Cambria;color:black;language:en-US;mso-ansi-language:en-US'> </span><span
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lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
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</td>
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<td width=168 height=24 valign=Top bgcolor=white style='width:126.04pt;
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height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:white;
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solid #4F81BD 1.0pt;border-bottom:solid #4F81BD 3.0pt'>
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<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
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style='font-size:12.0pt;font-family:Cambria;mso-default-font-family:Cambria;
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mso-ascii-font-family:Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:
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Cambria;mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;
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Cambria;color:black;language:en-US;mso-ansi-language:en-US'>March 08</span><span
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lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
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</td>
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<td width=168 height=24 valign=Top bgcolor=white style='width:126.04pt;
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height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:white;
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border-left:solid #4F81BD 1.0pt;border-top:solid #4F81BD 1.0pt;border-right:
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solid #4F81BD 1.0pt;border-bottom:solid #4F81BD 3.0pt'>
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<p class=MsoNormal style='mso-pagination:none;margin-bottom:14.0pt'><span
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lang=en-US style='font-size:12.0pt;font-family:Cambria;mso-default-font-family:
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Cambria;mso-ascii-font-family:Cambria;mso-latin-font-family:Cambria;
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mso-greek-font-family:Cambria;mso-cyrillic-font-family:Cambria;mso-armenian-font-family:
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Cambria;mso-hebrew-font-family:Cambria;mso-currency-font-family:Cambria;
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mso-latinext-font-family:Cambria;language:en-US;mso-ansi-language:en-US'>February 09</span><span
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lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
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</td>
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</tr>
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<tr>
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<td width=168 height=24 valign=Top bgcolor=white style='width:126.04pt;
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height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:white;
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border-left:solid #4F81BD 1.0pt;border-top:solid #4F81BD 3.0pt;border-right:
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solid #4F81BD 1.0pt;border-bottom:solid #4F81BD 1.0pt'>
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<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
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style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
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Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
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mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
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Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
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color:black;language:en-US;mso-ansi-language:en-US'>Queries</span><span
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lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
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</td>
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<td width=168 height=24 valign=Top bgcolor="#D3DFEE" style='width:126.04pt;
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height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:#D3DFEE;
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border-left:solid #4F81BD 1.0pt;border-top:solid #4F81BD 3.0pt;border-right:
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solid #4F81BD 1.0pt;border-bottom:solid #4F81BD 1.0pt'>
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<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
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style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
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Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
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mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
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Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
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color:black;language:en-US;mso-ansi-language:en-US'><span dir=ltr></span>58,026,098</span><span
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lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
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</td>
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<td width=168 height=24 valign=Top bgcolor="#D3DFEE" style='width:126.04pt;
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height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:#D3DFEE;
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border-left:solid #4F81BD 1.0pt;border-top:solid #4F81BD 3.0pt;border-right:
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solid #4F81BD 1.0pt;border-bottom:solid #4F81BD 1.0pt'>
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<p class=MsoNormal style='mso-pagination:none;margin-bottom:14.0pt'><span
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lang=en-US style='font-family:Cambria;mso-default-font-family:Cambria;
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mso-ascii-font-family:Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:
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Cambria;mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;
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mso-hebrew-font-family:Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:
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Cambria;language:en-US;mso-ansi-language:en-US'><span dir=ltr></span>58,666,967</span><span
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lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
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</td>
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</tr>
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<tr>
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<td width=168 height=24 valign=Top bgcolor=white style='width:126.04pt;
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height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:white;
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border:solid #4F81BD 1.0pt'>
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<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
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style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
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Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
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mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
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Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
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color:black;language:en-US;mso-ansi-language:en-US'>Abtract View</span><span
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lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
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</td>
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<td width=168 height=24 valign=Top style='width:126.04pt;height:18.0pt;
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padding-left:5.4pt;padding-right:5.4pt;border:solid #4F81BD 1.0pt'>
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<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
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style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
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Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
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mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
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Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
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color:black;language:en-US;mso-ansi-language:en-US'><span dir=ltr></span>67,093,786</span><span
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lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
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</td>
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<td width=168 height=24 valign=Top style='width:126.04pt;height:18.0pt;
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padding-left:5.4pt;padding-right:5.4pt;border:solid #4F81BD 1.0pt'>
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<p class=MsoNormal style='mso-pagination:none;margin-bottom:14.0pt'><span
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lang=en-US style='font-family:Cambria;mso-default-font-family:Cambria;
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mso-ascii-font-family:Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:
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Cambria;mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;
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mso-hebrew-font-family:Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:
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Cambria;language:en-US;mso-ansi-language:en-US'><span dir=ltr></span>65,049,452</span><span
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lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
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</td>
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</tr>
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<tr>
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<td width=168 height=24 valign=Top bgcolor=white style='width:126.04pt;
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height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:white;
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<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
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style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
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Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
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mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
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Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
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color:black;language:en-US;mso-ansi-language:en-US'>Fulltext View</span><span
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lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
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</td>
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<td width=168 height=24 valign=Top bgcolor="#D3DFEE" style='width:126.04pt;
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height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:#D3DFEE;
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border:solid #4F81BD 1.0pt'>
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<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
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style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
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Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
|
|
mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
|
|
Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
|
|
color:black;language:en-US;mso-ansi-language:en-US'><span dir=ltr></span>27,581,850</span><span
|
|
lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
|
|
</td>
|
|
<td width=168 height=24 valign=Top bgcolor="#D3DFEE" style='width:126.04pt;
|
|
height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:#D3DFEE;
|
|
border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none;margin-bottom:14.0pt'><span
|
|
lang=en-US style='font-family:Cambria;mso-default-font-family:Cambria;
|
|
mso-ascii-font-family:Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:
|
|
Cambria;mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;
|
|
mso-hebrew-font-family:Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:
|
|
Cambria;language:en-US;mso-ansi-language:en-US'><span dir=ltr></span>23,507,979</span><span
|
|
lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td width=168 height=24 valign=Top bgcolor=white style='width:126.04pt;
|
|
height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:white;
|
|
border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
|
|
Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
|
|
mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
|
|
Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
|
|
color:black;language:en-US;mso-ansi-language:en-US'> </span><span
|
|
lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
|
|
</td>
|
|
<td width=168 height=24 valign=Top style='width:126.04pt;height:18.0pt;
|
|
padding-left:5.4pt;padding-right:5.4pt;border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
|
|
Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
|
|
mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
|
|
Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
|
|
color:black;language:en-US;mso-ansi-language:en-US'> </span><span
|
|
lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
|
|
</td>
|
|
<td width=168 height=24 valign=Top style='width:126.04pt;height:18.0pt;
|
|
padding-left:5.4pt;padding-right:5.4pt;border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='language:en-US;mso-ansi-language:en-US'> <o:p></o:p></span></p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td width=168 height=24 valign=Top bgcolor=white style='width:126.04pt;
|
|
height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:white;
|
|
border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
|
|
Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
|
|
mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
|
|
Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
|
|
color:black;language:en-US;mso-ansi-language:en-US'>Avg Queries /Day</span><span
|
|
lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
|
|
</td>
|
|
<td width=168 height=24 valign=Top bgcolor="#D3DFEE" style='width:126.04pt;
|
|
height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:#D3DFEE;
|
|
border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
|
|
Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
|
|
mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
|
|
Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
|
|
color:black;language:en-US;mso-ansi-language:en-US'><span dir=ltr></span>1,871,815</span><span
|
|
lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
|
|
</td>
|
|
<td width=168 height=24 valign=Top bgcolor="#D3DFEE" style='width:126.04pt;
|
|
height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:#D3DFEE;
|
|
border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='language:en-US;mso-ansi-language:en-US'>2,095,249<o:p></o:p></span></p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td width=168 height=24 valign=Top bgcolor=white style='width:126.04pt;
|
|
height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:white;
|
|
border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
|
|
Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
|
|
mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
|
|
Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
|
|
color:black;language:en-US;mso-ansi-language:en-US'>Avg Abstract View /Day</span><span
|
|
lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
|
|
</td>
|
|
<td width=168 height=24 valign=Top style='width:126.04pt;height:18.0pt;
|
|
padding-left:5.4pt;padding-right:5.4pt;border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
|
|
Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
|
|
mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
|
|
Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
|
|
color:black;language:en-US;mso-ansi-language:en-US'><span dir=ltr></span>2,164,319</span><span
|
|
lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
|
|
</td>
|
|
<td width=168 height=24 valign=Top style='width:126.04pt;height:18.0pt;
|
|
padding-left:5.4pt;padding-right:5.4pt;border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='language:en-US;mso-ansi-language:en-US'>2,323,195<o:p></o:p></span></p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td width=168 height=24 valign=Top bgcolor=white style='width:126.04pt;
|
|
height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:white;
|
|
border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
|
|
Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
|
|
mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
|
|
Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
|
|
color:black;language:en-US;mso-ansi-language:en-US'>Avg Fulltext View /Day</span><span
|
|
lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
|
|
</td>
|
|
<td width=168 height=24 valign=Top bgcolor="#D3DFEE" style='width:126.04pt;
|
|
height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:#D3DFEE;
|
|
border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
|
|
Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
|
|
mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
|
|
Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
|
|
color:black;language:en-US;mso-ansi-language:en-US'><span dir=ltr></span>889,740</span><span
|
|
lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
|
|
</td>
|
|
<td width=168 height=24 valign=Top bgcolor="#D3DFEE" style='width:126.04pt;
|
|
height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:#D3DFEE;
|
|
border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='language:en-US;mso-ansi-language:en-US'>839,571<o:p></o:p></span></p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td width=168 height=24 valign=Top bgcolor=white style='width:126.04pt;
|
|
height:18.0pt;padding-left:5.4pt;padding-right:5.4pt;background:white;
|
|
border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
|
|
Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
|
|
mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
|
|
Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
|
|
color:black;language:en-US;mso-ansi-language:en-US'> </span><span
|
|
lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
|
|
</td>
|
|
<td width=168 height=24 valign=Top style='width:126.04pt;height:18.0pt;
|
|
padding-left:5.4pt;padding-right:5.4pt;border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
|
|
Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
|
|
mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
|
|
Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
|
|
color:black;language:en-US;mso-ansi-language:en-US'> </span><span
|
|
lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
|
|
</td>
|
|
<td width=168 height=24 valign=Top style='width:126.04pt;height:18.0pt;
|
|
padding-left:5.4pt;padding-right:5.4pt;border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='language:en-US;mso-ansi-language:en-US'> <o:p></o:p></span></p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td width=168 height=32 valign=Top bgcolor=white style='width:126.04pt;
|
|
height:24.4472pt;padding-left:5.4pt;padding-right:5.4pt;background:white;
|
|
border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
|
|
Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
|
|
mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
|
|
Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
|
|
color:black;language:en-US;mso-ansi-language:en-US'>Total Number of User Actions</span><span
|
|
lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
|
|
</td>
|
|
<td width=168 height=32 valign=Top bgcolor="#D3DFEE" style='width:126.04pt;
|
|
height:24.4472pt;padding-left:5.4pt;padding-right:5.4pt;background:#D3DFEE;
|
|
border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
|
|
Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
|
|
mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
|
|
Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
|
|
color:black;mso-bidi-font-weight:bold;language:en-US;mso-ansi-language:en-US'><span
|
|
dir=ltr></span>152,701,734</span><span lang=en-US style='language:en-US;
|
|
mso-ansi-language:en-US'><o:p></o:p></span></p>
|
|
</td>
|
|
<td width=168 height=32 valign=Top bgcolor="#D3DFEE" style='width:126.04pt;
|
|
height:24.4472pt;padding-left:5.4pt;padding-right:5.4pt;background:#D3DFEE;
|
|
border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='language:en-US;mso-ansi-language:en-US'>147,224,398<o:p></o:p></span></p>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td width=168 height=34 valign=Top bgcolor=white style='width:126.04pt;
|
|
height:24.9472pt;padding-left:5.4pt;padding-right:5.4pt;background:white;
|
|
border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
|
|
Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
|
|
mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
|
|
Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
|
|
color:black;language:en-US;mso-ansi-language:en-US'>Total Number of User Sessions</span><span
|
|
lang=en-US style='language:en-US;mso-ansi-language:en-US'><o:p></o:p></span></p>
|
|
</td>
|
|
<td width=168 height=34 valign=Top style='width:126.04pt;height:24.9472pt;
|
|
padding-left:5.4pt;padding-right:5.4pt;border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='font-family:Cambria;mso-default-font-family:Cambria;mso-ascii-font-family:
|
|
Cambria;mso-latin-font-family:Cambria;mso-greek-font-family:Cambria;
|
|
mso-cyrillic-font-family:Cambria;mso-armenian-font-family:Cambria;mso-hebrew-font-family:
|
|
Cambria;mso-currency-font-family:Cambria;mso-latinext-font-family:Cambria;
|
|
color:black;mso-bidi-font-weight:bold;language:en-US;mso-ansi-language:en-US'><span
|
|
dir=ltr></span>23,017,461</span><span lang=en-US style='language:en-US;
|
|
mso-ansi-language:en-US'><o:p></o:p></span></p>
|
|
</td>
|
|
<td width=168 height=34 valign=Top style='width:126.04pt;height:24.9472pt;
|
|
padding-left:5.4pt;padding-right:5.4pt;border:solid #4F81BD 1.0pt'>
|
|
<p class=MsoNormal style='mso-pagination:none'><span lang=en-US
|
|
style='language:en-US;mso-ansi-language:en-US'>28,011,966<o:p></o:p></span></p>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<br>
|
|
<br>
|
|
|
|
<A Name="query">
|
|
|
|
<p class=MsoAccentText style='mso-pagination:none'><span lang=en-US
|
|
style='language:en-US;mso-ansi-language:en-US'><b>Comparing query statistics: </b>
|
|
Here we show the proportion of queries according to
|
|
the number of tokens (white-space separated) for both sets of data.<br>
|
|
As can be seen from the figure below there are no major differences,
|
|
and both results suggest that PubMed queries are short.<o:p></o:p></span></p>
|
|
|
|
<img src="querytokens.jpg" border="1" width = "500">
|
|
<br><br>
|
|
|
|
<A Name="rank">
|
|
|
|
<p class=MsoAccentText style='mso-pagination:none'><span lang=en-US
|
|
style='language:en-US;mso-ansi-language:en-US'><b>Comparing click positions: </b>
|
|
Here we show the proportion of user clicks according to
|
|
the position of returned results for both sets of data.<br>
|
|
<o:p></o:p></span></p>
|
|
|
|
<img src="abstractrank1.jpg" border="1" width ="450">
|
|
<br>
|
|
Figure above shows the click positions on the first result page.</p>
|
|
|
|
<img src="abstractrank2.jpg" border="1" width = "450">
|
|
<br>
|
|
Figure above shows the clicks positions on the other result pages (ratio is computed per page).
|
|
|
|
<br><br>
|
|
<A Name="result">
|
|
|
|
<p class=MsoAccentText style='mso-pagination:none'><span lang=en-US
|
|
style='language:en-US;mso-ansi-language:en-US'><b>Comparing search result size: </b>
|
|
Here we show the proportion of queries according to
|
|
the size of returned results (in log scale) for both sets of data.<br>
|
|
|
|
<br>
|
|
<img src="queryresults.jpg" border="1" width="450">
|
|
|
|
</table>
|
|
|
|
</body>
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