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- ArticleDecember 2024
GIG: Graph Data Imputation With Graph Differential Dependencies
AbstractData imputation addresses the challenge of imputing missing values in database instances, ensuring consistency with the overall semantics of the dataset. Although several heuristics which rely on statistical methods, and ad-hoc rules have been ...
- ArticleDecember 2024
MAPX: An Explainable Model-Agnostic Framework for Detecting False Information on Social Media Networks
Web Information Systems Engineering – WISE 2024Pages 116–127https://doi.org/10.1007/978-981-96-0567-5_10AbstractAutomated detection of false information is crucial for combating “fake news” on online social media networks (OSMN), reducing the need for manual discernment. Existing solutions often use content or context features of OSMN documents in isolation,...
- research-articleNovember 2024
An efficient approach for discovering Graph Entity Dependencies (GEDs)
- Dehua Liu,
- Selasi Kwashie,
- Yidi Zhang,
- Guangtong Zhou,
- Michael Bewong,
- Xiaoying Wu,
- Xi Guo,
- Keqing He,
- Zaiwen Feng
AbstractGraph entity dependencies (GEDs) are novel graph constraints, unifying keys and functional dependencies, for property graphs. They have been found useful in many real-world data quality and data management tasks, including fact checking on social ...
Highlights- A study of the discovery problem of Graph Entity Dependencies (GEDs).
- A new and efficient approach for the discovery of GEDs in property graphs.
- A minimum description length inspired definition of interestingness of GEDs to rank ...
- ArticleNovember 2023
Discovering Graph Differential Dependencies
AbstractGraph differential dependencies (GDDs) are a novel class of integrity constraints in property graphs for capturing and expressing the semantics of difference in graph data. They are more expressive, and subsume other graph dependencies; and thus, ...
- ArticleOctober 2023
FastAGEDs: Fast Approximate Graph Entity Dependency Discovery
- Guangtong Zhou,
- Selasi Kwashie,
- Yidi Zhang,
- Michael Bewong,
- Vincent M. Nofong,
- Junwei Hu,
- Debo Cheng,
- Keqing He,
- Shanmei Liu,
- Zaiwen Feng
Web Information Systems Engineering – WISE 2023Pages 451–465https://doi.org/10.1007/978-981-99-7254-8_35AbstractThis paper studies the discovery of approximate rules in property graphs. First, we propose a semantically meaningful measure of error for mining graph entity dependencies (GEDs) that almost hold, to tolerate errors and inconsistencies that exist ...
- ArticleJanuary 2024
Acumen: Analysing the Impact of Organisational Change on Users’ Access Entitlements
AbstractPlanned organisational changes are frequent occurrences in large enterprises due to the dynamicity of employees’ roles, evolution of teams, units and divisions as a result of mergers, demergers, and general restructuring. To safeguard system ...
- research-articleMay 2019
A Graph is Worth a Thousand Words: Telling Event Stories using Timeline Summarization Graphs
Story timeline summarization is widely used by analysts, law enforcement agencies, and policymakers for content presentation, story-telling, and other data-driven decision-making applications. Recent advancements in web technologies have rendered social ...
- research-articleFebruary 2019
Certus: an effective entity resolution approach with graph differential dependencies (GDDs)
Proceedings of the VLDB Endowment (PVLDB), Volume 12, Issue 6Pages 653–666https://doi.org/10.14778/3311880.3311883Entity resolution (ER) is the problem of accurately identifying multiple, differing, and possibly contradicting representations of unique real-world entities in data. It is a challenging and fundamental task in data cleansing and data integration. In ...