1 code implementation • 3 Nov 2024 • Hadi Mehdizavareh, Arijit Khan, Simon Lebech Cichosz
Accurately predicting blood glucose (BG) levels of ICU patients is critical, as both hypoglycemia (BG < 70 mg/dL) and hyperglycemia (BG > 180 mg/dL) are associated with increased morbidity and mortality.
no code implementations • 2 Oct 2024 • Arijit Khan, Tianxing Wu, Xi Chen
The unification of large language models (LLMs) and knowledge graphs (KGs) has emerged as a hot topic.
no code implementations • 30 Apr 2024 • Dazhuo Qiu, Mengying Wang, Arijit Khan, Yinghui Wu
Given a graph neural network M, a robust counterfactual witness refers to the fraction of a graph G that are counterfactual and factual explanation of the results of M over G, but also remains so for any "disturbed" G by flipping up to k of its node pairs.
no code implementations • 28 Apr 2024 • Poupak Azad, Cuneyt Gurcan Akcora, Arijit Khan
Blockchain technology has rapidly emerged to mainstream attention, while its publicly accessible, heterogeneous, massive-volume, and temporal data are reminiscent of the complex dynamics encountered during the last decade of big data.
1 code implementation • 4 Jan 2024 • Tingyang Chen, Dazhuo Qiu, Yinghui Wu, Arijit Khan, Xiangyu Ke, Yunjun Gao
Existing approaches aim to understand the overall results of GNNs rather than providing explanations for specific class labels of interest, and may return explanation structures that are hard to access, nor directly queryable. We propose GVEX, a novel paradigm that generates Graph Views for EXplanation.
no code implementations • 23 May 2023 • Arijit Khan
First, research on KG querying has been conducted by several communities, such as databases, data mining, semantic web, machine learning, information retrieval, and natural language processing (NLP), with different focus and terminologies; and also in diverse topics ranging from graph databases, query languages, join algorithms, graph patterns matching, to more sophisticated KG embedding and natural language questions (NLQs).
1 code implementation • 28 Mar 2023 • Peng Fang, Arijit Khan, Siqiang Luo, Fang Wang, Dan Feng, Zhenli Li, Wei Yin, Yuchao Cao
Graph embedding maps graph nodes to low-dimensional vectors, and is widely adopted in machine learning tasks.
1 code implementation • 24 Mar 2023 • Jason Zhu, Arijit Khan, Cuneyt Gurcan Akcora
However, analyzing these networks remains challenging due to the sheer volume and complexity of the data.
2 code implementations • 15 Oct 2019 • Yu-Xiang Wang, Arijit Khan, Tianxing Wu, Jiahui Jin, Haijiang Yan
We face two challenges on graph query over a knowledge graph: (1) the structural gap between $G_Q$ and the predefined schema in $G$ causes mismatch with query graph, (2) users cannot view the answers until the graph query terminates, leading to a longer system response time (SRT).
Databases
no code implementations • 15 Oct 2019 • Tianxing Wu, Arijit Khan, Melvin Yong, Guilin Qi, Meng Wang
Knowledge graph (KG) embedding encodes the entities and relations from a KG into low-dimensional vector spaces to support various applications such as KG completion, question answering, and recommender systems.
no code implementations • 2 Feb 2018 • Vijaya Krishna Yalavarthi, Arijit Khan
Correspondingly, we develop a dynamic framework for the influence maximization problem, where we perform effective local updates to quickly adjust the top-k influencers, as the structure and communication patterns in the network change.
Social and Information Networks 68-06