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Dear All,</div>
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We have a seminar next week whose details are provided below - </div>
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<span style="font-size: 15px;"><b>Speaker:</b> </span><span style="font-size: 11pt;"><b>Ameek Malhotra
</b>(Swansea University)</span></div>
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<b>Seminar date:</b> May 6<sup>th</sup><b>, Tuesday, 1 pm </b>UK time</div>
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<b>Venue:</b> Seminar Room <b>A 113 (Cripps North Building, CAPT)</b></div>
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<span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: black;"><b>Title:
</b></span><span style="font-family: "Segoe UI", "Segoe UI Web (West European)", -apple-system, "system-ui", Roboto, "Helvetica Neue", sans-serif; font-size: 15px; color: black;"><b><i>Bayesian Optimisation for efficient cosmological model selection</i></b></span></p>
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<span style="font-family: "Segoe UI", "Segoe UI Web (West European)", -apple-system, "system-ui", Roboto, "Helvetica Neue", sans-serif; font-size: 15px; color: black;"><b>Abstract: </b>Cosmological model selection, in the framework of Bayesian inference requires
the calculation of the Bayesian evidence. This can often be quite challenging, especially if the underlying likelihood function is expensive to evaluate. I will show how a technique called Bayesian Optimisation, based on Gaussian Process regression, can be
used to calculate this evidence in far fewer likelihood evaluations, offering a much more efficient approach compared to traditional methods. If time permits, I will also discuss another ongoing project related to the reconstruction of the primordial curvature
power spectrum and the equation of state from scalar induced gravitational waves.<br>
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<b>Link to join:</b></div>
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<a href="https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d" target="_blank" id="OWAfe414af1-b9ec-24e2-ec25-d17a799d9810" class="OWAAutoLink" title="https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d" rel="noopener noreferrer" data-auth="NotApplicable" data-linkindex="0" style="margin: 0px;">https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM3OTk5NzQtZWEwZS00ZmUyLTk3MGUtZjFhY2M5OTU2MjI1%40thread.v2/0?context=%7b%22Tid%22%3a%2267bda7ee-fd80-41ef-ac91-358418290a1e%22%2c%22Oid%22%3a%22f3250584-4b5f-48fa-a897-08e77f2246b7%22%7d</a></div>
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<b><i><u>List of upcoming Seminars:</u></i></b></div>
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13th May: David Trestini (Southampton)</div>
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22nd May: Diederik Roest (Groningen)</div>
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12th June: Isobel Romero (Cambridge)</div>
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19th June: Rachel Gray (Glasgow)</div>
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With Regards,</div>
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-Elisa & Swagat</div>
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