Ratan Sebastian | RGVA Publications

Number of publications: 7

2024

[1]

R. Sebastian:

Adaptive Search Support for Teachers in Lesson Planning

In: Conference on User Modeling, Adaptation and Personalization, UMAP Adjunct 2024, Cagliari, Italy, July 1-4, 2024. ACM, 2024.

https://doi.org/10.1145/3631700.3664921

Bib

        @inproceedings{DBLP:conf/um/Sebastian24,
  author = {Sebastian, Ratan},
  title = {Adaptive Search Support for Teachers in Lesson Planning},
  booktitle = {Conference on User Modeling, Adaptation and Personalization, {UMAP} Adjunct 2024, Cagliari, Italy, July 1-4, 2024},
  publisher = {{ACM}},
  year = {2024},
  url_ = {https://doi.org/10.1145/3631700.3664921},
  doi = {10.1145/3631700.3664921},
  timestamp = {Thu, 04 Jul 2024 22:05:46 +0200},
  biburl = {https://dblp.org/rec/conf/um/Sebastian24.bib},
  bibsource = {dblp computer science bibliography, https://dblp.org},
  status_ = {exclude}
}

[2]

R. Sebastian and A. Hoppe:

An Updated Analysis of Learning Resource Metadata Usage on the Web

In: International Conference on Theory and Practice of Digital Libraries, TPDL 2024, Ljubljanja, Slovenia, September 24-27, 2024. Springer, 2024.

Accepted for Publication

Bib

        @inproceedings{DBLP:conf/um/Sebastian25,
  author = {Sebastian, Ratan and Hoppe, Anett},
  title = {An Updated Analysis of Learning Resource Metadata Usage on the Web},
  booktitle = {International Conference on Theory and Practice of Digital Libraries, {TPDL} 2024, Ljubljanja, Slovenia, September 24-27, 2024},
  pages_ = {},
  status = {unpublished},
  publisher = {Springer},
  year = {2024},
  doi_ = {},
  timestamp_ = {},
  biburl_ = {},
  bibsource_ = {}
}

[3]

S. Cosemans, P. Grant, R. Sebastian, and M. Allassonière-Tang:

Refugee Policy in 1970s Archives

. Zenodo 2024.

https://doi.org/10.5281/ZENODO.11396507

Bib

        @article{cosemans_refugee_2024,
  author = {Cosemans, Sara and Grant, Philip and Sebastian, Ratan and Allassonière-Tang, Marc},
  title = {Refugee Policy in 1970s Archives},
  booktitle = {Conference on Digital Humanities, Benelux, 2024, Leuven, Belgium, June 5-7, 2024},
  publisher = {Zenodo},
  year = {2024},
  url_ = {https://zenodo.org/doi/10.5281/zenodo.11396507},
  doi = {10.5281/ZENODO.11396507},
  timestamp = {Thu, 25 Jul 2024 22:05:46 +0200},
  exclude = {True},
  status_ = {exclude}
}

[4]
M. Roski, R. Sebastian, R. Ewerth, A. Hoppe, and A. Nehring:

Learning analytics and the Universal Design for Learning (UDL): A clustering approach

Computers & Education, 214, pp. 105028, 2024.
https://doi.org/10.1016/j.compedu.2024.105028
Bib

In the context of inclusive education, Universal Design for Learning (UDL) is a framework used worldwide to create learning opportunities accessible to all learners. While much research focused on the design and students’ perceptions of UDL-based learning settings, studies on students’ usage patterns in UDL-guided elements, particularly in digital environments, are still scarce. Therefore, we analyze and cluster the usage patterns of 9th and 10th graders in a web-based learning platform called I3Learn. The platform focuses on chemistry learning, and UDL principles guide its design. We collected the temporal usage patterns of UDL-guided elements of 384 learners in detailed log files. The collected data includes the time spent using video and/or text as a source of information, working on learning tasks with or without help and working on self-assessments. We used Exploratory Factor Analysis (EFA) to identify relevant factors in the observed usage behaviors. Based on the factor loadings, we extracted features for k-means clustering and named the resulting groups based on their usage patterns and learner characteristics. The EFA revealed four factors suggesting that learners remain consistent in selecting UDL-guided elements that require a decision (video or text, tasks with or without help). Based on these four factors, the cluster analysis identifies six different groups. We discuss these results as a starting point to provide individualized learning support through further artificial intelligence applications and inform educators about learner activity through a dashboard.
@article{Roski2024a, author = {Roski, Marvin and Sebastian, Ratan and Ewerth, Ralph and Hoppe, Anett and Nehring, Andreas}, journal = {Computers & Education}, title = {Learning analytics and the Universal Design for Learning (UDL): A clustering approach}, year = {2024}, issn = {0360-1315}, pages = {105028}, volume = {214}, doi = {10.1016/j.compedu.2024.105028}, keywords = {Clustering, Web-based learning science, Education inclusive education}, url_ = {https://www.sciencedirect.com/science/article/pii/S0360131524000423} }

2023

[1]

M. Roski, R. Sebastian, R. Ewerth, A. Hoppe, and A. Nehring:

Dropout Prediction in a Web Environment Based on Universal Design for Learning

In: International Conference on Artificial Intelligence in Education, AIED 2023, Tokyo, Japan, July 3-7, 2023,, pp. 515–527. Springer, 2023.

https://doi.org/10.1007/978-3-031-36272-9_42

Bib

        @inproceedings{DBLP:conf/aied/RoskiSEHN23,
  author = {Roski, Marvin and Sebastian, Ratan and Ewerth, Ralph and Hoppe, Anett and Nehring, Andreas},
  booktitle = {International Conference on Artificial Intelligence in Education, {AIED} 2023, Tokyo, Japan, July 3-7, 2023,},
  title = {Dropout Prediction in a Web Environment Based on Universal Design for Learning},
  year = {2023},
  pages = {515--527},
  publisher = {Springer},
  bibsource = {dblp computer science bibliography, https://dblp.org},
  biburl = {https://dblp.org/rec/conf/aied/RoskiSEHN23.bib},
  doi = {10.1007/978-3-031-36272-9\_42},
  editor_ = {Ning Wang and Genaro Rebolledo{-}Mendez and Noboru Matsuda and Olga C. Santos and Vania Dimitrova},
  series_ = {Lecture Notes in Computer Science},
  timestamp = {Fri, 04 Aug 2023 15:27:47 +0200},
  url_ = {https://doi.org/10.1007/978-3-031-36272-9\_42},
  volume_ = {13916}
}

2022

[1]

R. J. Sebastian, R. Ewerth, and A. Hoppe:

Grade Level Filtering for Learning Object Search using Entity Linking

In: International Workshop on Investigating Learning During Web Search co-located with the International ACM SIGIR Conference on Research and Development in Information Retrieval, IWILDS@SIGIR 2022, Madrid, Spain, July 15, 2022, 3411, pp. 69–83. CEUR-WS.org, 2022.

https://ceur-ws.org/Vol-3411/IWILDS-paper3.pdf

Bib

        @inproceedings{DBLP:conf/sigir/SebastianEH22,
  author = {Sebastian, Ratan J. and Ewerth, Ralph and Hoppe, Anett},
  editor = {{\"{O}}zlem {\"{O}}zg{\"{o}}bek and Lommatzsch, Andreas and Kille, Benjamin and Liu, Peng and Malthouse, Edward C. and Gulla, Jon Atle and Hoppe, Anett and Yu, Ran and Liu, Jiqun},
  title = {Grade Level Filtering for Learning Object Search using Entity Linking},
  booktitle = {International Workshop on
                    Investigating Learning During Web Search co-located
                    with the International {ACM} {SIGIR} Conference on Research and Development
                    in Information Retrieval, {IWILDS}@{SIGIR} 2022, Madrid, Spain, July 15, 2022},
  series = {{CEUR} Workshop Proceedings},
  volume = {3411},
  pages = {69--83},
  publisher = {CEUR-WS.org},
  year = {2022},
  timestamp = {Mon, 28 Aug 2023 17:23:07 +0200},
  biburl = {https://dblp.org/rec/conf/sigir/SebastianEH22.bib},
  bibsource = {dblp computer science bibliography, https://dblp.org}
}

2021

[1]

P. Grant, R. Sebastian, M. Allassonnière-Tang, and S. Cosemans:

Topic modelling on archive documents from the 1970s: global policies on refugees

Digital Scholarship in the Humanities, 36(4), pp. 886–904, 2021.

https://doi.org/10.1093/LLC/FQAB018

Bib

        @article{DBLP:journals/lalc/GrantSAC21,
  author = {Grant, Philip and Sebastian, Ratan and Allassonni{\`{e}}re{-}Tang, Marc and Cosemans, Sara},
  title = {Topic modelling on archive documents from the 1970s: global policies
                    on refugees},
  journal = {Digital Scholarship in the Humanities},
  volume = {36},
  number = {4},
  pages = {886--904},
  year = {2021},
  url_ = {https://doi.org/10.1093/llc/fqab018},
  doi = {10.1093/LLC/FQAB018},
  timestamp = {Mon, 28 Aug 2023 21:40:58 +0200},
  biburl = {https://dblp.org/rec/journals/lalc/GrantSAC21.bib},
  bibsource = {dblp computer science bibliography, https://dblp.org},
  status_ = {exclude}
}