I. Introduction
Using data to drive discoveries and enhance patient outcomes, the field of biomedical informatics has become essential to contemporary healthcare and biomedical research [1]. As technology progresses, this sector also does, and the creation of domain-specific ontologies and advanced data mining methods has been a major driving force. These developments have sparked a paradigm shift in favour of more complex and efficient data processing techniques, which has produced ground-breaking discoveries and breakthroughs in the medical field [2]. In biomedical informatics, domain-specific ontologies are organised frameworks that specify the vocabulary and connections pertinent to certain biological domains. They act as thorough vocabularies that standardise ideas and how they relate to one another, promoting mutual understanding amongst various healthcare and research organisations [3]. To handle the complexity and heterogeneity present in biological data, these ontologies are essential [4]. This allows for more precise and effective semantic reasoning and knowledge discovery. These ontologies are used by semantic reasoning to analyse and deduce meaning from large and diverse biological data sets [5]. To improve decision-making processes, it entails using logical approaches to extract, analyse, and infer links and patterns within data. Semantic reasoning speeds up the rate of discovery in biomedical research by enabling more complex searches, better information retrieval, and the creation of novel hypotheses by giving data a contextual framework [6]. At the same time, substantial advancements have been made in data mining methods, providing a variety of tools and algorithms for obtaining useful information from massive and intricate data sets. Data mining in the context of biomedical informatics includes techniques for, among other things, pattern identification, anomaly detection, clustering, and predictive modelling [7]- [9]. By revealing hidden patterns, clarifying putative causal linkages, and forecasting future trends or consequences, these methods greatly assist in biological research and clinical decision-making. Although the integration of domain-specific ontologies with data mining and semantic reasoning has great potential, there are still several obstacles to overcome [10]. These include problems with ontology upkeep and scalability, integrating and aligning diverse data sources, and guaranteeing the accuracy and dependability of the information that is extracted. Furthermore, the quick speed at which biomedical research is developing means that ontologies must constantly be updated and improved to consider new discoveries and insights [11]. A prime example of the influence of these technologies is the emerging area of personalised medicine. Personalised medicine seeks to optimise patient outcomes by customising healthcare therapies to individual patient features via the integration of patient-specific data with larger scientific knowledge [12]. Semantic reasoning, data mining, and domain-specific ontologies are important facilitators in this field, offering the frameworks and instruments required to comprehend and analyse multidimensional, complicated data and arrive at well-informed conclusions [13]. Following these advancements, the goal of this study is to provide a thorough review of the status of semantic reasoning and knowledge discovery in biomedical informatics, with an emphasis on the function of domain-specific ontologies, as well as their potential going forward. It will explore the methods and uses of these technologies, talk about the difficulties and constraints that have been found, and make predictions about potential advancements and future directions in the area. In doing so, the article hopes to further the current discussion and advancement of more successful, efficient, and customised medical research as well as healthcare solutions. All things considered, the combination of data mining, semantic reasoning, and domain-specific ontologies is a major development in biomedical informatics. These innovations provide strong instruments for deciphering and making use of the enormous volumes of data produced in research and healthcare environments, resulting in improved results and more informed choices. It is essential to address current issues and look for new possibilities as the area develops to increase the effectiveness and impact of these strategies. By attempting to clarify these points, this study hopes to provide the groundwork for further investigation and advancement in this important and ever-changing field.