Publications by authors named "Mohamed A Hadj Taieb"

This study presents a comprehensive framework to enhance Wikidata as an open and collaborative knowledge graph by integrating Open Biological and Biomedical Ontologies (OBO) and Medical Subject Headings (MeSH) keywords from PubMed publications. The primary data sources include OBO ontologies and MeSH keywords, which were collected and classified using SPARQL queries for RDF knowledge graphs. The semantic alignment between OBO ontologies and Wikidata was evaluated, revealing significant gaps and distorted representations that necessitate both automated and manual interventions for improvement.

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Biomedical relation classification has been significantly improved by the application of advanced machine learning techniques on the raw texts of scholarly publications. Despite this improvement, the reliance on large chunks of raw text makes these algorithms suffer in terms of generalization, precision, and reliability. The use of the distinctive characteristics of bibliographic metadata can prove effective in achieving better performance for this challenging task.

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Background: Behcet's disease (BD) is a multisystem autoimmune relapsing vasculitis with an almost unknown etiology involving both large and small vessels. The neurological involvement called neuro-Behcet's disease (NBD) is rare. NBD can be responsible for tumor-like masses mimicking low-grade gliomas in only a few cases.

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This brief research report analyzes the availability of Digital Object Identifiers (DOIs) worldwide, highlighting the dominance of large publishing houses and the need for unique persistent identifiers to increase the visibility of publications from developing countries. The study reveals that a considerable amount of publications from developing countries are excluded from the global flow of scientific information due to the absence of DOIs, emphasizing the need for alternative publishing models. The authors suggest that the availability of DOIs should receive more attention in scholarly communication and scientometrics, contributing to a necessary debate on DOIs relevant for librarians, publishers, and scientometricians.

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Pituitary metastasis (PM) is an uncommon manifestation of systemic malignant tumours. It is the least common site of intracranial metastases. As PM has no clinical or radiological pathognomonic features, their diagnosis is challenging.

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This comment discusses the benefits of representing and reusing the information in Electronic Health Record databases as knowledge graphs in the RDF format based on the FHIR RDF specification. As a structured representation of clinical data, FHIR RDF-based electronic health records allow a simpler and more effective integration of biomedical information using semantic alignment, queries, interoperability, and federation to provide better support for health practice and research.

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Urgent global research demands real-time dissemination of precise data. Wikidata, a collaborative and openly licensed knowledge graph available in RDF format, provides an ideal forum for exchanging structured data that can be verified and consolidated using validation schemas and bot edits. In this research article, we catalog an automatable task set necessary to assess and validate the portion of Wikidata relating to the COVID-19 epidemiology.

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In this research letter, we build upon recent studies about the sleeping beauties awakened by the COVID-19 pandemic. We prove that a peak of citations for sleeping beauties is associated with a sharp increase in the number of citations received by their references. This demonstrates the existence of a cascading activation of citation-based sleeping beauties.

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Article Synopsis
  • Clear cell meningiomas (CCMs) are a rare type of brain tumor primarily seen in younger patients, with only 89 cases reported globally, and even fewer (19 cases) identified without dural attachment.
  • A 58-year-old female patient experienced lower back pain and sciatica for six months, leading to an MRI that revealed a distinct intra-dural lesion at L3.
  • The tumor was successfully removed completely through surgery because it wasn't attached to the dura, and the histological analysis confirmed the diagnosis as clear cell meningioma.
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  • Cerebellopontine angle (CPA) lipoma is a very rare type of tumor, making up just 0.1% of CPA tumors.
  • A 56-year-old woman experienced vertigo for six months before being diagnosed.
  • An MRI confirmed the presence of a left CPA lipoma, and the patient was treated with a conservative approach.
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  • Social data plays a crucial role in disaster management, particularly in healthcare and tracking the COVID-19 pandemic.
  • This study focuses on analyzing Facebook posts in seven languages to monitor COVID-19 trends, offering a different perspective compared to previous works largely relying on Twitter.
  • The research involved a detailed analytics process from data gathering to topic modeling, revealing that the identified topics aligned with the chronological changes in pandemic discourse and responses across different languages and countries.
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This letter discusses the limitations of the use of filters to enhance the accuracy of the extraction of parenthetic abbreviations from scholarly publications and proposes the usage of the parentheses level count algorithm to efficiently extract entities between parentheses from raw texts as well as of machine learning-based supervised classification techniques for the identification of biomedical abbreviations to significantly reduce the removal of acronyms including disallowed punctuations.

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Created in October 2012, Wikidata is a large-scale, human-readable, machine-readable, multilingual, multidisciplinary, centralized, editable, structured, and linked knowledge-base with an increasing diversity of use cases. Here, we raise awareness of the potential use of Wikidata as a useful resource for biomedical data integration and semantic interoperability between biomedical computer systems. We show the data model and characteristics of Wikidata and explain how this database can be automatically processed by users as well as by computer methods and programs.

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Article Synopsis
  • The article presents a reproducibility dataset aimed at replicating experiments and results from the authors' earlier work on ontology-based semantic similarity and Word Embeddings.
  • The dataset compiles raw word-similarity values from various methods, all processed using a script to generate key evaluation metrics and tables.
  • Additionally, it offers tools to conduct new word similarity benchmarks, enabling further exploration of the topic using different methods or datasets.
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The exploitation of heterogeneous clinical sources and healthcare records is fundamental in clinical and translational research. The determination of semantic similarity between word pairs is an important component of text understanding that enables the processing and structuring of textual resources. Some of these measures have been adapted to the biomedical field by incorporating domain information extracted from clinical data or from medical ontologies such as MeSH.

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