<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div dir="auto" style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><br id="lineBreakAtBeginningOfMessage"><div>
<meta charset="UTF-8"><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">-------------------------------------------</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Call for Participation </span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">------</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Dear all,</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">The Educational Series on Applied Ontology (ESAO) [1] is open for</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">everyone and welcomes students, researchers and practitioners alike.</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">The 17h ESAO webinar will be held on Tuesday June 16 2025 16:00 CEST.</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">---------------------------</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">When and how to connect</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Thursday June 16, 2026 14:00 UTC / 16:00 CEST / 16:00 SAST (see more local times [2])</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Duration: 60 minutes</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Video conference (via Zoom)</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><a href="https://uni-leipzig.zoom-x.de/j/61897235197?pwd=NLb6mOnc4bKCqb3qVRUzSQ3bMfi9ct.1" style="font-size: 16px; font-family: arial, helvetica, sans-serif;">https://uni-leipzig.zoom-x.de/j/61897235197?pwd=NLb6mOnc4bKCqb3qVRUzSQ3bMfi9ct.1</a><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">---------------------------</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Program</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">14:00-15:00 UTC / 16:00-17:00 CEST / 16:00-17:00 SAST / 11:00-132:00 UTC-3 </span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Stefan Schulz, Full Professor for Medical Informatics at the Institute of Medical Informatics, Statistics and Documentation, Medical University of Graz.</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Title: Between Words and Worlds: Natural Language, Ontology, and the Challenge of Ground Truth</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Abstract: This lecture explores the tension between ontological modeling and human language semantics, focusing on the challenges of transforming text into ontology-based knowledge representations. </span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Using examples from the biomedical domain, the lecture encompasses three use cases, (i) the mapping of multilingual terms and expressions to domain ontology IDs, (ii) the construction of interoperable knowledge graphs from text, and (iii) the filling of pre-defined templates.</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">A central theme is the difficulty of establishing reliable ground truth through guideline-based annotation, particularly the assignment of ontology codes to text spans, as well as the specification of relations between them. Different, yet semantically plausible, representations can diverge structurally, raising critical questions about what constitutes a “correct” annotation.</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Best regards</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">Lucia Gomez Alvarez, Cassia Trojahn, Frank Loebe, Laure Vieu</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">On behalf of the IAOA Education Committee</span><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">[1] </span><a href="https://wiki.iaoa.org/index.php/Edu:ESAO" style="font-size: 16px; font-family: arial, helvetica, sans-serif;">https://wiki.iaoa.org/index.php/Edu:ESAO</a><br style="font-size: 16px; font-family: arial, helvetica, sans-serif;"><span style="font-size: 16px; font-family: arial, helvetica, sans-serif;">[2] </span><a href="https://www.timeanddate.com/worldclock/fixedtime.html?iso=20250603T1400" style="font-size: 16px; font-family: arial, helvetica, sans-serif;">https://www.timeanddate.com/worldclock/fixedtime.html?iso=20250603T1400</a></div></div></div></div></body></html>