<p class="MsoNormal" style="MARGIN: 0in 0in 0pt"><font face="Times New Roman">Hi,</font></p>
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<p class="MsoNormal" style="MARGIN: 0in 0in 0pt"><font face="Times New Roman">I am not a very active user in this list. May be my question is too general and I would be apologizing if I disturbed your interests.</font></p>
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<p class="MsoNormal" style="MARGIN: 0in 0in 0pt"><font face="Times New Roman">Recently when I was thinking about dynamic ontology modeling, I got the perception that there should be a growing aging problem associated in such models. The reason is that when the network grows over the time, the concepts should be from a spectrum of time frames from past to present. If such a model is used for future decision making, there should be a possibility that the decisions are bit outdated for the current time. I have seen this problem in many aged people.</font></p>
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<p class="MsoNormal" style="MARGIN: 0in 0in 0pt"><font face="Times New Roman">I'm very happy if someone can point me references for this.</font></p>
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<p class="MsoNormal" style="MARGIN: 0in 0in 0pt"><font face="Times New Roman">Hiran Ekanayake</font></p>
<p class="MsoNormal" style="MARGIN: 0in 0in 0pt"><font face="Times New Roman">Department of<span style="mso-spacerun: yes"> </span>Computation and Intelligent Systems</font></p>
<p class="MsoNormal" style="MARGIN: 0in 0in 0pt"><font face="Times New Roman">University of Colombo School of Computing</font></p><span style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">Colombo</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">, </span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">Sri Lanka</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">.</span>