Differences

This shows you the differences between two versions of the page.

--- aira:start [2024/06/24 12:30] – [2024-06-27] sbk
+++ aira:start [2024/09/06 08:05] (current) – gjn
@@ Line 8: / Line 8: @@
 The program will be published at [[https://aira.geist.re]] in advance
 (a dedicated MS Teams group for announcements is available for those who are interested).
+Scientific coordination: [[https://gjn.re|Grzegorz J. Nalepa]]
 Scientific secretary [[https://szymon.bobek.re|Szymon Bobek]]
-Scientific coordination: [[https://gjn.re|Grzegorz J. Nalepa]]
+===== Schedule Autumn 2024 =====
+AIRA will restart on 10.10.2024, TBC, stay tuned
 ===== Schedule Summer 2024 =====
-  * **[RESEARCH TRACK] 2024.06.27**: José Palma,Juan Botía, Antonio Guillén-Teruel  [[#20240627| Context-Aware learning models: CALM-Project]]
+  * **[RESEARCH TRACK] 2024.06.27**: José Palma,Juan Botía, Antonio Guillén-Teruel  [[#20240627| Context-Aware learning models: CALM-Project and Concept Drift in Imbalanced Problems]]
-      * Meeting link: [[|MS Teams]]
+      * Meeting link: [[https://teams.microsoft.com/l/meetup-join/19%3aJF1L0935A7eV6s8R9brG5MMYONrqy4XmxPSYLeRMCGM1%40thread.tacv2/1719232789438?context=%7b%22Tid%22%3a%22eb0e26eb-bfbe-47d2-9e90-ebd2426dbceb%22%2c%22Oid%22%3a%22c96e4eee-96f3-4b0f-88ef-fe65310f5f55%22%7d|MS Teams]]
       * Recording: [[|View]] (if you are not UJ employee, ask Szymon Bobek for access)
-      * Presentation slides: {{ |Download}}
+      * Presentation slides: {{:aira:slides-jose-palma-20240617.pdf |Download I}} {{ :aira:slides-antonio-guillen-20240627.pdf |Download II}}
   * **[RESEARCH TRACK] 2024.06.06**: Żaneta Kubic [[#20240606| European Cultural Heritage in Virtual Worlds – why and how : introduction to the IMPULSE project]]
       * Meeting link: [[https://teams.microsoft.com/l/meetup-join/19%3aJF1L0935A7eV6s8R9brG5MMYONrqy4XmxPSYLeRMCGM1%40thread.tacv2/1717407321901?context=%7b%22Tid%22%3a%22eb0e26eb-bfbe-47d2-9e90-ebd2426dbceb%22%2c%22Oid%22%3a%22c96e4eee-96f3-4b0f-88ef-fe65310f5f55%22%7d|MS Teams]]
       * Recording: [[https://ujchmura.sharepoint.com/:v:/t/Section_495645_1/EfkSlUmXWbRGvq0xS6bBZkcBrrRI2bumOitE0ou0VBKC2w?nav=eyJyZWZlcnJhbEluZm8iOnsicmVmZXJyYWxBcHAiOiJTdHJlYW1XZWJBcHAiLCJyZWZlcnJhbFZpZXciOiJTaGFyZURpYWxvZy1MaW5rIiwicmVmZXJyYWxBcHBQbGF0Zm9ybSI6IldlYiIsInJlZmVycmFsTW9kZSI6InZpZXcifX0%3D&e=3EfKGG|View]] (if you are not UJ employee, ask Szymon Bobek for access)
-      * Presentation slides: {{ |Download}}
+      * Presentation slides: {{ :aira:slides-zaneta-kubic-20240606.pdf |Download}}
   * **[DOCTORAL TRACK] 2024.05.16**: Mateusz Bułat [[#20240516| Image analysis for specialised therapy support]]
       * Meeting link: [[https://teams.microsoft.com/l/meetup-join/19%3aJF1L0935A7eV6s8R9brG5MMYONrqy4XmxPSYLeRMCGM1%40thread.tacv2/1715342946914?context=%7b%22Tid%22%3a%22eb0e26eb-bfbe-47d2-9e90-ebd2426dbceb%22%2c%22Oid%22%3a%22c96e4eee-96f3-4b0f-88ef-fe65310f5f55%22%7d|MS Teams]]
@@ Line 33: / Line 36: @@
       * Meeting link: [[https://teams.microsoft.com/l/meetup-join/19%3aJF1L0935A7eV6s8R9brG5MMYONrqy4XmxPSYLeRMCGM1%40thread.tacv2/1713853200005?context=%7b%22Tid%22%3a%22eb0e26eb-bfbe-47d2-9e90-ebd2426dbceb%22%2c%22Oid%22%3a%22c96e4eee-96f3-4b0f-88ef-fe65310f5f55%22%7d|MS Teams]]
       * Recording: [[https://ujchmura.sharepoint.com/:v:/t/Section_495645_1/EXQKuYkW3VFMr94bDgX3kR8BEDi5SYRLog-xkyoNA0ONJA?nav=eyJyZWZlcnJhbEluZm8iOnsicmVmZXJyYWxBcHAiOiJTdHJlYW1XZWJBcHAiLCJyZWZlcnJhbFZpZXciOiJTaGFyZURpYWxvZy1MaW5rIiwicmVmZXJyYWxBcHBQbGF0Zm9ybSI6IldlYiIsInJlZmVycmFsTW9kZSI6InZpZXcifX0%3D&e=T6Cnc7|View]] (if you are not UJ employee, ask Szymon Bobek for access)
-      * Presentation slides: {{ |Download}}
+      * Presentation slides: {{ :aira:slides-bartek-malkus-20240425.pdf|Download}}
   * **[DOCTORAL TRACK] 2024.04.18**
     * Farnoud Ghasemi [[#20240418| Performance Optimization of the Platforms in Two-sided Mobility Market]] and
@@ Line 336: / Line 339: @@
-**Title II**: Context-Aware learning models: CALM-Project by José Palma, Juan Botía, University of Murcia
+**Title I**: Context-Aware learning models: CALM-Project by José Palma, Juan Botía, University of Murcia
 **Abstract**:
@@ Line 345: / Line 348: @@
 These are the main challenges that CAML project tries to approach. The initial hypothesis of this project is that the development of advanced techniques to detect and characterise concept drift in pandemic scenarios and on different types of data, combining different representation schemes, will not only provide tools to anticipate and react to model degradation, but will also allow the development of techniques to generate medical and preventive knowledge that will help improve the quality of care and, ultimately, better manage situations of extreme stress in the health system.
+**Title II**:  Concept Drift in Imbalanced Problems by Antonio Guillén-Teruel, University of Murcia
+**Abstract**:
+We address the challenge of concept drift in imbalanced datasets, which is common in various real-world applications. We build upon the IPIP (Identical Partitions for Imbalance Problems) method, which effectively generates balanced subsets by subsampling the majority class to ensure representation of all minority class instances. This method enhances the performance of ensemble learning models in imbalanced scenarios.
+Additionally, we introduce the UIC (Unbiased Integration Coe) metric, designed to reduce bias caused by the imbalance ratio in datasets. The UIC metric integrates multiple biased measures, inversely weighted by their correlation with the minority class proportion, resulting in a more unbiased evaluation metric.
+Our work extends these methods to address concept drift, particularly in the context of passive learning. Concept drift occurs when the underlying data distribution changes over time, a phenomenon observed in dynamic datasets like those tracking COVID-19 patient outcomes. We propose adapting the IPIP method to handle concept drift by updating the model with new data chunks over time, ensuring that minority class instances are adequately represented in each update.
+Furthermore, we explore the application of the UIC metric to problems involving concept drift in imbalanced data. By adapting UIC for these scenarios, we aim to provide a more reliable measure of model performance over time, despite the evolving data distributions.
+Through extensive experiments on both simulated and real-world datasets, including a COVID-19 patient cohort, we demonstrate the effectiveness of our approach. Our findings suggest that the combination of IPIP and UIC, adapted for concept drift, offers a robust framework for tackling imbalanced data in non-stationary environments. Future work will focus on developing R packages to implement these methods, facilitating their application in various practical settings.
 **Biograms**:
@@ Line 359: / Line 375: @@
 **Juan A. Botía**, is Professor in Computer Science and Artificial Intelligence at University of Murcia (UMU), Spain since September 2018. He also holds an Honorary Senior Research Fellow position at the Institute of Neurology (IoN), University College London (UCL), UK since July, 2017. He has a PhD in Computational Science and Artificial Intelligence (AI) from UMU (March, 2002). His expertise combines a deep knowledge about Artificial Intelligence, the experience of 10 years in the development of bioinformatic pipelines and the application of machine learning on the molecular biology domain. During the last 10 years, he has actively participated in 43 scientific papers indexed at Journal Citation Reports. Within that period he has supervised and completed 7 PhD theses. He is currently supervising 4 PhD students (4 at University of Murcia, 1 at University College London). He has experience of more than 15 years teaching machine learning related subjects and six years of teaching data analysis for bioinformatics.
+**Antonio Guillén-Teruel** graduated in Mathematics from the University of Murcia in 2020. In 2021 he got a Masters degree in Big Data from the same university and started his Ph.D studies in Informatics. The following year he got a Masters degree in Advanced Mathematics at the University of Murcia. His research focuses on imbalanced problems in Machine Learning (ML), including both in regression and classification problems, as well as the study of concept drift in medical domains for imbalanced datasets.
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