derekovecs: rename lfmd to pmi³
PMI³ is probably more widely used and more easily recognized
diff --git a/templates/index.html.ep b/templates/index.html.ep
index 24896bc..cb833ea 100644
--- a/templates/index.html.ep
+++ b/templates/index.html.ep
@@ -852,7 +852,7 @@
</script>
</head>
<body onload="onload()">
- <div style="display:none;" id="lfmd_ttt">Log-frequency biased mutual dependency: $$log_2\frac{p^3(w_1,w_2)}{p(w_1) p(w_2)}$$<p class="citation">Thanopoulos, A., Fakotakis, N., Kokkinakis, G. (2002): <a href="http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.11.8101&rep=rep1&type=pdf">Comparative evaluation of collocation extraction metrics</a>. In: Proc. of LREC 2002: 620–625.</p></div>
+ <div style="display:none;" id="lfmd_ttt">PMI cubed [1], also called log-frequency biased mutual dependency [2]: $$\text{PMI}^3=\text{LFMD}=log_2\frac{p^3(w_1,w_2)}{p(w_1) p(w_2)}$$<p class="citation">[1] Daille, B. (1994): <a href="http://www.bdaille.com/index.php?option=com_docman&task=doc_download&gid=8&Itemid=">Approche mixte pour l’extraction automatique de terminologie: statistiques lexicales et filtres linguistiques</a>. PhD thesis, Université Paris 7.</p><p class="citation">[2] Thanopoulos, A., Fakotakis, N., Kokkinakis, G. (2002): <a href="http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.11.8101&rep=rep1&type=pdf">Comparative evaluation of collocation extraction metrics</a>. In: Proc. of LREC 2002: 620–625.</p></div>
<div style="display:none;" id="npmi_ttt">Normalized pointwise mutual information: $$\frac{log_2\frac{p(w_1,w_2)}{p(w_1)p(w_2)}}{-log_2(p(w_1,w_2))}$$<p class="citation">Bouma, Gerlof (2009): <a href="https://svn.spraakdata.gu.se/repos/gerlof/pub/www/Docs/npmi-pfd.pdf">Normalized (pointwise) mutual information in collocation extraction</a>. In Proceedings of GSCL.</p></div>
<div id="header">
<div id="pagetitle">
@@ -1009,13 +1009,12 @@
% if($collocators) {
<tr>
<th>LLR</th>
- <th id="lfmd_tt">LFMD</th>
- <!-- <th title="frequency biased pointwise mutual information">fpmi</th>-->
+ <th id="lfmd_tt">PMI³</th>
<th id="npmi_tt">nPMI</th>
- <th title="log-frequency biased mutual dependency - left neighbour only">l-LFMD</th>
- <th title="log-frequency biased mutual dependency - right neighbour only">r-LFMD</th>
- <th title="normalized pointwise mutual information - left neighbour only">l-nPMI</th>
- <th title="normalized pointwise mutual information - right neighbour only">r-nPMI</th>
+ <th title="PMI³ restricted to left neighbour">l-PMI³</th>
+ <th title="PMI³ restricted to right neighbour">r-PMI³</th>
+ <th title="nPMI restricted to left neighbour">l-nPMI</th>
+ <th title="nPMI restricted to right neighbour">r-nPMI</th>
<th title="raw max frequency of collocation within window">raw</th>
<th>collocator</th>
</tr>