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Import.
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Wed, 23 Nov 2011 19:22:13 +0100
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1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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2 "http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
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3
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4 <html lang="en">
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5 <head>
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6 <meta name="generator" content=
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7 "HTML Tidy for Mac OS X (vers 1st December 2004), see www.w3.org">
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8 <meta http-equiv="Content-Type" content=
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9 "text/html; charset=us-ascii">
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10
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11 <title>Submitting LTPDA objects to a repository (LTPDA Toolbox)</title>
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12 <link rel="stylesheet" href="docstyle.css" type="text/css">
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13 <meta name="generator" content="DocBook XSL Stylesheets V1.52.2">
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14 <meta name="description" content=
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15 "Presents an overview of the features, system requirements, and starting the toolbox.">
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16 </head>
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17
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18 <body>
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19 <a name="top_of_page" id="top_of_page"></a>
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20
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21 <p style="font-size:1px;">&nbsp;</p>
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22
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23 <table class="nav" summary="Navigation aid" border="0" width=
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24 "100%" cellpadding="0" cellspacing="0">
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25 <tr>
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26 <td valign="baseline"><b>LTPDA Toolbox</b></td><td><a href="../helptoc.html">contents</a></td>
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27
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28 <td valign="baseline" align="right"><a href=
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29 "repo_connect.html"><img src="b_prev.gif" border="0" align=
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30 "bottom" alt="Connecting to an LTPDA Repository"></a>&nbsp;&nbsp;&nbsp;<a href=
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31 "repo_explore.html"><img src="b_next.gif" border="0" align=
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32 "bottom" alt="Exploring an LTPDA Repository"></a></td>
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33 </tr>
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34 </table>
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35
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36 <h1 class="title"><a name="f3-12899" id="f3-12899"></a>Submitting LTPDA objects to a repository</h1>
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37 <hr>
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38
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39 <p>
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40 <p>
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41 Any of the <it>user</it> objects can be submitted to an LTPDA repository
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42 </p>
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43
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44 <p>
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45 There are three different methods which submit/update object(s) to the repository:
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46 <ul>
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47 <li><h3>submit</h3>
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48 Submits the given collection of objects to an LTPDA Repository. If multiple objects
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49 are submitted together, a corresponding collection entry will be made. The objects
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50 are stored as a XML representation <b>and</b> if possible a binary representation
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51 (see bsubmit).</li>
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52 <li><h3>bsubmit</h3>
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53 Submits the given collection of objects to an LTPDA Repository. If multiple objects
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54 are submitted together, a corresponding collection entry will be made. The objects
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55 are stored <b>only</b> as a binary representation.<br />
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56 In order to retrieve this object by calling a constructor it is necessary to
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57 set the key <tt>'BINARY'</tt> to 'yes' because the XML representation doesn't exist.
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58 For example the AO constructor
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59 <a href="matlab:web(ao.getInfo('ao', 'from repository').tohtml, '-helpbrowser')">'From Repository'</a>
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60 </li>
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61 <li><h3>update</h3>
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62 Updates the specified object with a new object.
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63 </li>
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64 </ul>
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65 </p>
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66
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67 <h2>The submission process</h2>
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68
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69 <p>
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70 When an object is submitted, the following steps are taken:<br />
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71 <ol>
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72 <li>The <tt>userid</tt> of the user connecting is retrieved from the <it>Users</it> table of the repository</li>
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73 <li>For each object to be submitted:
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74 <ol>
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75 <li>The object to be submitted is checked to be one of the types listed above</li>
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76 <li>The <tt>name</tt>, <tt>created</tt>, and <tt>version</tt> fields are read from the object</li>
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77 <li>The object is converted to an XML text string</li>
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78 <li>An MD5 hash sum is computed for the XML string</li>
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79 <li>The XML string and the hash code are inserted in to the <tt>objs</tt> table</li>
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80 <li>The automatically assigned ID of the object is retrieved from the <tt>objs</tt> table</li>
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81 <li>An attempt is made to create a binary representation of the object (.MAT). If this is possible, the binary data is inserted in the <tt>bobjs</tt> table.</li>
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82 <li>Various pieces of meta-data (object name, object type, created time, client IP address, <i>etc.</i>) are submitted to the <tt>objmeta</tt> table</li>
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83 <li>Additional meta-data is entered into the table matching the object class (<tt>ao</tt>, <tt>tsdata</tt>, <i>etc.</i>)</li>
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84 <li>An 'in' entry is made in the <tt>transaction</tt> table recording the user ID and the object ID</li>
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85 </ol>
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86 </li>
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87 <li>A entry is then made in the <tt>collections</tt> table, even if this is a single object submission</li>
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88 <li>The object IDs and the collection ID are returned to the user</li>
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89 </ol>
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90 </p>
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91
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92 <br />
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93 <h2>Submitting objects</h2>
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94
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95 <p>
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96 Objects can be submitted using the command <tt>submit</tt>. This command takes at least two inputs:
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97 <table border="1" cellpadding="2" width="30%" bgcolor="#DDDDDD">
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98 <tr valign="top">
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99 <td><tt>object</tt></td><td>The object(s) to submit</td>
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100 </tr>
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101 <tr valign="top">
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102 <td><tt>pl</tt></td><td>A plist containing various pieces of information (see below)</td>
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103 </tr>
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104 </table>
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105 </p>
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106 <p>
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107 The <tt>plist</tt> details can be found at: <a href="matlab:web(ltpda_uo.getInfo('submit').tohtml, '-helpbrowser')">Parameter Sets</a>
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108 </p>
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109 <p>
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110 The following example script connects to a repository and submits an AO:
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111 <div class="fragment"><pre>
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112
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113 <span class="comment">% Connect to a repository</span>
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114 conn = utils.jmysql.connect(<span class="string">'localhost'</span>, <span class="string">'ltpda_test'</span>);
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115
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116 <span class="comment">% Load the AO</span>
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117 a = ao(<span class="string">'result.xml'</span>);
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118
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119 <span class="comment">% Build an information plist</span>
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120 pl = plist;
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121 pl.append(<span class="string">'conn'</span>, conn);
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122 pl.append(<span class="string">'experiment title'</span>, <span class="string">'Interferometer noise'</span>);
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123 pl.append(<span class="string">'experiment description'</span>, <span class="string">'Spectral estimation of interferometer output signal'</span>);
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124 pl.append(<span class="string">'analysis description'</span>, <span class="string">'Spectrum of the recorded signal'</span>);
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125 pl.append(<span class="string">'quantity'</span>, <span class="string">'photodiode output'</span>);
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126 pl.append(<span class="string">'keywords'</span>, <span class="string">'interferometer, noise, spectrum'</span>);
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127 pl.append(<span class="string">'reference ids'</span>, <span class="string">''</span>);
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128 pl.append(<span class="string">'additional comments'</span>, <span class="string">'none'</span>);
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129 pl.append(<span class="string">'additional authors'</span>, <span class="string">'no one'</span>);
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130
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131 <span class="comment">% Submit the AO</span>
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132 [ids, cid] = submit(a, pl);
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133
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134 <span class="comment">% Close the connection</span>
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135 conn.closeConnection
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136 </pre></div>
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137 The ID assigned to the submitted object is contained in the first output of the <tt>submit</tt> function:
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138 <div class="fragment"><pre>
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139 <span class="comment">% Inspect the object ID</span>
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140 disp(ids)
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141 212
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142 </pre></div>
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143 If the <tt>plist</tt> contains sufficient information, it is possible to overide the appearance of the
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144 'submission' dialog by giving the key/value pair: 'no dialog', <tt>true</tt>.
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145 </p>
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146
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147 <h2>Submitting collections</h2>
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148 <p>
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149 Collections of LTPDA objects can also be submitted. Here a collection is defined as a group of objects
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150 submitted at the same time. In this way, a single information structure describing the collection is
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151 assigned to all the objects. The collection is just a virtual object; it is defined by a list of object IDs in the database.
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152 </p>
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153
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154
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155 </p>
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156
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157 <br>
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158 <br>
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159 <table class="nav" summary="Navigation aid" border="0" width=
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160 "100%" cellpadding="0" cellspacing="0">
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161 <tr valign="top">
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162 <td align="left" width="20"><a href="repo_connect.html"><img src=
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163 "b_prev.gif" border="0" align="bottom" alt=
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164 "Connecting to an LTPDA Repository"></a>&nbsp;</td>
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165
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166 <td align="left">Connecting to an LTPDA Repository</td>
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167
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168 <td>&nbsp;</td>
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169
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170 <td align="right">Exploring an LTPDA Repository</td>
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171
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172 <td align="right" width="20"><a href=
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173 "repo_explore.html"><img src="b_next.gif" border="0" align=
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174 "bottom" alt="Exploring an LTPDA Repository"></a></td>
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175 </tr>
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176 </table><br>
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177
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Daniele Nicolodi <nicolodi@science.unitn.it>
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178 <p class="copy">&copy;LTP Team</p>
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179 </body>
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180 </html>