<div dir="ltr"><br><div class="gmail_quote"><div dir="ltr"><div class="gmail_quote"><span style="font-family:arial,helvetica,sans-serif">DATE: Â <span style="color:rgb(0,0,0);line-height:21px">Friday, September 12th, 2014</span><br></span>
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<p><span style="font-family:arial,helvetica,sans-serif">TITLE:Â <b>*</b>Â Operator evolution for ab initio nuclear theory (Micah Schuster)</span></p><p><span style="font-family:arial,helvetica,sans-serif">Â Â Â Â Â Â Â Â Â Â Â <b>*</b>Â Video Quality Enhancement through Prioritized Packet Fragmentation and Error Protection (Seethal Paluri)
</span></p>
<p><span style="font-family:arial,helvetica,sans-serif"><br></span></p><p><span style="font-family:arial,helvetica,sans-serif">TIME:Â Â 3:30 PM</span></p>
<p><span style="font-family:arial,helvetica,sans-serif">LOCATION:Â Â GMCS 214</span></p>
<p><span style="font-family:arial,helvetica,sans-serif">SPEAKER:Â Micah Schuster. <span style="color:rgb(0,0,0);line-height:21px"></span><span style="color:rgb(0,0,0);font-size:14px;line-height:21px">San Diego State University</span></span></p><p><span style="font-family:arial,helvetica,sans-serif"><span style="color:rgb(0,0,0);font-size:14px;line-height:21px">Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Seethal Paluri. San Diego State University<br></span></span></p>
<p><span style="font-family:arial,helvetica,sans-serif"><u><br></u></span></p><p><span style="font-family:arial,helvetica,sans-serif"><u>ABSTRACTS:</u></span></p><p><span style="font-family:arial,helvetica,sans-serif">(Micah):Â <br>The past two decades have seen a revolution in ab initio calculations of
nuclear properties. One key element has been the development of a
rigorous effective interaction theory, applying unitary transformations
to soften the nuclear Hamiltonian and hence accelerate the convergence
as a function of the model space size. For consistency, however, one
ought to apply the same transformation to other operators when
calculating transitions and mean values from the eigenstates of the
renormalized Hamiltonian. Working in a translationally invariant
harmonic oscillator basis for the two- and three-nucleon systems, we
evolve the Hamiltonian, square radius, and total dipole strength
operators by the similarity renormalization group (SRG). The inclusion
of up to three-body matrix elements in the 4He nucleus all but
completely restores the invariance of the expectation values under the
transformation. <br></span></p><p><span style="font-family:arial,helvetica,sans-serif">(Seethal):<br>We present a real-time priority aware video packet fragmentation and unequal error protection scheme at the
medium access control (MAC) layer over Rayleigh fading channels. The cumulative mean squared error (CMSE) of
the H.264 AVC encoded slices is predicted using a generalized linear model. The model was trained using various
video factors that impact the quality of the video during a slice loss. A priority is assigned to each slice based on its
predicted CMSE contribution towards the group-of-pictures (GOP). The slices of the same priority are aggregated to
form MTU sized video packets. We simulate the fragment error rates for a combination of rate compatible punctured
convolutional (RCPC) code rates and use these fragment error rates in our optimization to determine the optimal
fragment sizes and code rates. We derive the optimal fragment sizes and the RCPC code rates for each priority
class by minimizing the expected normalized predicted CMSE of all the priority classes per GOP. We observed
a significant improvement in the received video quality over the traditional baseline and priority agnostic packet
fragmentation schemes.</span></p><p><span style="font-family:arial,helvetica,sans-serif">HOST:Â Â Dr. <span style="color:rgb(0,0,0);line-height:21px">Jose Castillo</span><br></span></p>
<p><span style="font-family:arial,helvetica,sans-serif">For future events, please visit our website at:</span></p>
<p><span style="font-family:arial,helvetica,sans-serif"><a href="http://www.csrc.sdsu.edu/colloquium.html" target="_blank">http://www.csrc.sdsu.edu/colloquium.html</a></span></p></div></div></div></div></div></div></div></div></div>
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</div><br><br clear="all"><br>-- <br>
<p>Jose E. Castillo  Ph.D.</p><p>Director / Professor </p>
<p>Computational Science Research Center</p>
<p>5500 Campanile Dr</p>
<p>San Diego State University</p>
<p>San Diego CA 92182-1245</p>
<p>619 5947205/3430, Fax 619-594-2459</p><p>Â <a href="http://www.csrc.sdsu.edu/mimetic-book/" target="_blank">http://www.csrc.sdsu.edu/mimetic-book/</a></p>
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