Entity And Relation Extraction from Biomedical Text

The advances in technology have affected all walks of life. The knowledge base of medicine is no different, yet its complexities make for a problematic adaptation to many life-changing technologies. Data analysis models and machine learning approaches to text recognition have changed how we perceive data. The data available would have been impossible to interpret in the yesteryears.

However, today AI-powered tools such as neural networks and machine learning methods are here to analyze the vast amounts of data available. Entity recognition by different extraction models creates links and interprets data. Entity and relation extraction from biomedical text is an extension of this technology.

What is NER?

Named Entity Recognition, or ‘NER,’ helps computers categorize phrases and sentences into entities. In other words, the text is annotated with categorization concerning different features. The classification of sentences and text can be performed via custom-trained models or follow the traditional route by extracting typical features in the text. Such features could include a name, place, date, time, product, or service.

NER is the cornerstone of NLP, which uses NER to extract entities from abstract text automatically. NER makes NLP an efficient process and finds its uses in many other technologies, including topic modeling, question answering, and data extraction. Data classification into categories based on linguistic or rule-based techniques is done to find dependencies and linkages between two or more individual entities.

Development of NER as a Data Analytics Technique

In the early days of NER, companies employed techniques such as rule-based & lexicon-based to find relevant features in a given abstract. The traditional models were easy to initialize, but to keep finding correct relation types, required meticulous maintenance. The dictionaries needed to annotate the text must be well-populated in collaboration with subject matter experts with the required literature for NER use.

The next evolution came with machine learning approaches, which people still found exhausting. It involved learning biomedical literature to identify biomedical entities to draw relation types and dependencies. Automatic extraction of biomedical entities is only possible via extensive training of the model through an expert.

Finally, deep learning models completed the switch to more advanced models. Deep learning models could resolve earlier constraints of extensively training the model before it yielded any results. Deep learning models, especially neural networks that mimic human intelligence, extract entities while learning on the dataset.

Uses of NER

Entity recognition is an essential tool for many intermediary processes. Entity recognition is a simple yet effective tool with easy-to-use features making it convenient for small and large businesses. Text annotation is the first step in the classification of text, whether it is to be done by machines or humans. Uses of NER are as follows:

Customer Support

Customer support is a great way to assess the viability of any business, as better relations with the customers translate into returning customers. Sentiment classification plays a significant role in assessing customer needs, thus increasing sales. Entity and relation extraction from text can be performed via neural networks, which ultimately helps businesses maintain an excellent rapport with customers.

Categorizing customer support issues and calls can become a lifesaver if you have a streamlined operation. Classification of entities makes addressing the different issues quickly by the concerned departments. Automatic extraction of entities leads to an excellent base of processes that the customer trusts.

Resume Filtering

Companies can get hundreds of resumes over a single post. Depending on older techniques to sift through these resumes costs a lot of human resources. Entity and relation extraction can solve this problem as specific features can be taught to be extracted, and the program returns with the required results.

Resumes can easily be tagged according to their weaknesses, strengths, and essential job requirements. The resumes that mentioned a specific critical skill may get higher weightage after passing through the filtering process. Each employer can fine-tune the automatic extraction model to get the required resumes.

Entity Recognition – Biomedical Data

Entity recognition is an excellent tool that can help analyze medical records. NER models can annotate different chemicals present in a medical record as well as the medical conditions of patients. Health professionals can make an informed diagnosis with high accuracy due to NER.

Biomedical relation extraction identifies meaningful information from medical records, which may require extensive reading otherwise. Timesaving in this exhaustive process results in medical professionals using their knowledge for other analytical activities.

Real-Time Monitoring of Online Media

Named entity recognition is an excellent tool to help companies and businesses monitor social media feeds for customer relations. Automatic extraction of the text across the web helps develops superior customer relations. Businesses react to adverse situations and connect with their customer base.

Why use NER for Biomedical Texts?

Entity and relation extraction from biomedical texts is a daunting task, even with the plethora of technologies in hand. However, the neural network models can achieve accurate results using NER and refining the model to extract biomedical entities.

A hybrid approach would be most suitable, given the technical nature of biomedical texts. Extensive dictionaries can be jotted down, and developers can seek expert medical opinions from the field to fine-tune a deep learning or machine learning model. Such a model would return the required entity relations from biomedical texts with high accuracy.

Named entity recognition for biomedical text can be performed via open-sourced APIs or SAAS-named entity recognition APIs (Application Programming Interface). The benefit of using an open-source API is its flexibility, zero cost, and ease of learning while performing the analysis.

Meanwhile, SAAS tools are also easy to use and are low-code, cost-effective solutions. One added advantage of SAAS tools is their audibility with other platforms. This integration of the API becomes extra helpful when dealing with multiple processes, such as natural language processing and named entity recognition side-by-side.


At VizRefra, we help you analyze data based on the latest trends in entry recognition models. Our staff is well-equipped to provide top-notch entity and relation extraction from biomedical text services. Accuracy of data is a must when it comes to medical diagnosis. Up-to-date models help us achieve maximum accuracy in our data analytics models.