Combining educational resources through graph representation learning

Publié le jeu 02/12/2021 - 10:52
Chercheurs et encadrants
Equipe
Liste des encadrants et encadrantes de thèse
Type d'encadrement
Directeur.trice de thèse
Nom, Prénom
MIKLOS, Zoltan
Unite de recherche
IRISA
Contact
Oui
Equipe
Type d'encadrement
Co-encadrant.e
Nom, Prénom
Hoël Le Capitaine
Unite de recherche
LS2N
Contact
Non
Type d'encadrement
Co-encadrant.e
Nom, Prénom
Mickael Foursov
Unite de recherche
IRISA
Contact
Non
Contact.s
Nom
MIKLOS, Zoltan
Email
zoltan.miklos@irisa.fr
Unité de recherche
UMR 6074 (IRISA)
Description du sujet de la thèse

Context and motivation

There is a large number of publicly available learning resources. To combine these resources and create potential coherent sequences to achieve a specific learning goal is a challenging task for educators. Identifying resources to complete or complement an existing course also requires a considerable effort. At the same time, teachers and professors are confronted with the task of creating online courses within a very short time, in particular during the Covid sanitary crisis. Making sense of large collections and especially identifying connections between learning resources is challenging and time-consuming. 

Objectives and scientific challenges 

The objective of the CLARA project, financed by Cominlabs, is to support and assist educators in associating learning resources to learning paths, in particular, relative to the designed curricula. We would like to design such methods with the help of various methods from artificial intelligence. Specifically, we will associate various pieces of information to the resources, such as metadata and knowledge graphs. Then we would like to exploit graph matching and graph representation learning [Ham2020]  techniques that relate these individual graphs and identify more specific connections between the resources. 

However, the graph representation learning methods are not directly adapted to address the specific problem of linking open educational resources, for the following reasons :

  • There could be several knowledge graphs that are associated with a specific resource. We could also have different versions of the same knowledge graph.
  • Besides the knowledge graphs, we can have other metadata that could be exploited.
  • Most importantly, if we would like to complete an existing path of resources with an additional one, the choice might depend on the entire path and not only one single resource of this path. In other words, in order to predict which resources are related and could be used in a curriculum, we should exploit higher-order features [Bick2021] of the networks and tensors that we will construct. The learned graph representation should also represent the paths of resources. 

We propose to work on this specific problem in the thesis. We plan to develop representation learning techniques for higher-order networks that can support path-finding methods. There are some recent works in this direction, including [Rossi18], [Saebi21], and [Benson2018]. However, these works do not focus on knowledge graphs. Moreover, prerequisite relations between concepts, if they are known, should also be given special attention.  

Date de début de thèse (si connue)
dès que possible
Lieu
Rennes
Bibliographie

[Ham2020] William L Hamilton. Graph representation learning. Synthesis Lectures on Artificial Intelligence and Machine Learning, 14(3), 2020.Morgan & Claypool publishers

[Bick2021] Christian Bick and Elizabeth Gross and Heather A. Harrington and Michael T. Schaub. What are Higher-Order Networks? https://arxiv.org/abs/2104.11329

[Rossi18] Ryan A. Rossi, Nesreen K. Ahmed, and Eunyee Koh. 2018. Higher-order Network Representation Learning. In WWW '18 Companion: The 2018 Web Conference Companion, April 23–27, 2018, Lyon, France. 

[Saebi21] Mandana Saebi , Giovanni Luca Ciampaglia , Lance M. Kaplan , Nitesh V. Chawla. HONEM: Network Embedding Using Higher-Order Patterns in Sequential Data

[Benson2018] Benson, Austin R. and Abebe, Rediet and Schaub, Michael T. and Jadbabaie, Ali and Kleinberg, Jon. Simplicial Closure and Higher-Order Link Prediction. Proceedings of the National Academy of Sciences. 115(48), 2018. 10.1073/pnas.1800683115

  

Mots-clés
educational resources, knowledge graphs, graph representation learning, higher-order networks
Année de début de thèse
2022