no code implementations • 13 Feb 2024 • Batool Lakzaei, Mostafa Haghir Chehreghani, Alireza Bagheri
However, a significant challenge in identifying fake news is the limited availability of labeled news datasets.
1 code implementation • 31 Jan 2024 • Nemat Gholinejad, Mostafa Haghir Chehreghani
In this paper, we propose a fair GNN-based recommender system, called HetroFair, to improve items' side fairness.
Ranked #1 on Recommendation Systems on Amazon-Movies
1 code implementation • 1 Jan 2024 • Yassin Mohamadi, Mostafa Haghir Chehreghani
Local neighborhoods play a crucial role in embedding generation in graph-based learning.
Ranked #1 on Node Classification on Citeseer (1:1 Accuracy metric)
2 code implementations • 21 Nov 2023 • Fatemeh Gholamzadeh Nasrabadi, AmirHossein Kashani, Pegah Zahedi, Mostafa Haghir Chehreghani
More precisely, we propose models wherein a structural embedding using a GNN and a content embedding are computed for each node.
no code implementations • 14 Sep 2022 • Mostafa Haghir Chehreghani
From early days, a key and controversial question inside the artificial intelligence community was whether Artificial General Intelligence (AGI) is achievable.
no code implementations • 10 Mar 2021 • Mostafa Haghir Chehreghani
An important tool in analyzing complex social and information networks is s-t simple path counting, which is known to be #P-complete.
Social and Information Networks Data Structures and Algorithms
no code implementations • 18 Feb 2020 • Morteza Haghir Chehreghani, Mostafa Haghir Chehreghani
We propose a hierarchical correlation clustering method that extends the well-known correlation clustering to produce hierarchical clusters applicable to both positive and negative pairwise dissimilarities.
no code implementations • 28 May 2019 • Mostafa Haghir Chehreghani
Existing exact algorithms for updating the solution of dynamic graph regression require at least a linear time (in terms of $n$: the size of the graph).
no code implementations • 26 Mar 2019 • Mostafa Haghir Chehreghani
Then, we show that given a n*m update-efficient matrix embedding (e. g., the adjacency matrix) and after an update operation in the graph, the exact optimal solution of linear regression can be updated in O(nm) time for the revised graph.
no code implementations • 21 Dec 2018 • Morteza Haghir Chehreghani, Mostafa Haghir Chehreghani
Then, to address the model selection problem, we study the aggregation of different dendrogram-based distances respectively in solution space and in representation space in the spirit of deep representations.