How Generative AI Enables Semantic Graphs for Knowledge Extraction

Sam Ansari
7 min readSep 9, 2024

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Semantic knowledge graph

Generative AI has rapidly evolved as a game-changing technology, capable of synthesizing and understanding vast amounts of data across different formats. One particularly powerful application of generative AI is in enabling the creation and utilization of semantic graphs for knowledge extraction. By transforming unstructured data into structured, interconnected knowledge representations, generative AI is advancing how we process and interpret information in a wide range of fields.

This article explores how generative AI empowers the development of semantic graphs and how these graphs, in turn, facilitate deeper knowledge extraction and understanding across various domains.

What is Generative AI?

Generative AI refers to artificial intelligence systems capable of generating content, whether text, images, or even data structures, based on learned patterns. Unlike traditional AI, which is more focused on classification or prediction, generative AI models can create new data that resembles the input they were trained on. Popular examples include models like GPT (Generative Pre-trained Transformer).

In the context of semantic graph creation, generative AI models can analyze unstructured data and generate structured representations of the entities and their relationships, effectively building semantic graphs that can be used for knowledge extraction.

Understanding Semantic Graphs and Knowledge Extraction

A semantic graph is a data structure that represents real-world entities (such as people, objects, or concepts) and the relationships between them. It is widely used in knowledge extraction to create a network of information where entities are nodes, and their relationships are edges. These graphs offer a powerful way to capture the meaning and context of information.

By visualizing data in this interconnected format, organizations can uncover complex relationships and gain deeper insights that would otherwise remain hidden in raw, unstructured data. This is where generative AI comes into play — by automating the extraction and mapping of information into a semantic graph format, it enables faster and more accurate knowledge extraction.

How Generative AI Enables Semantic Graph Creation

1. Automatic Entity Recognition and Extraction

Generative AI models can be trained to recognize and extract entities from unstructured data sources like text, video, or audio. These entities, such as people, organizations, products, or locations, form the nodes in a semantic graph. For example, a generative AI model could process a news article and automatically identify key individuals, events, and organizations involved in the story.

This automation reduces the time and effort needed to manually identify entities in large datasets, providing a significant advantage for businesses and researchers dealing with vast amounts of data.

2. Generating Relationships Between Entities

Once entities are identified, the next step is to understand how they are related. Generative AI can automatically infer and generate relationships between entities by analyzing patterns in the data. These relationships, such as “works for,” “is located in,” or “is part of,” form the edges of the semantic graph.

Generative models are particularly useful here because they can go beyond surface-level analysis and infer deeper, often implicit relationships. For example, in a corporate email dataset, a generative AI model might recognize not only direct collaborations between individuals but also infer informal networks of influence based on email tone and frequency.

3. Contextual Understanding and Knowledge Mapping

Context is critical for accurate knowledge extraction. Generative AI can process data in a way that captures the contextual meaning of entities and relationships, ensuring that the semantic graph reflects not just isolated facts but also the nuances of how those facts interrelate.

For instance, in healthcare, generative AI can be used to build semantic graphs from medical records and clinical data. The model can identify not only individual symptoms, treatments, and diagnoses but also how these elements are interconnected — perhaps revealing a correlation between a specific treatment and better patient outcomes in certain contexts.

4. Cross-Domain Knowledge Integration

One of the powerful advantages of generative AI is its ability to integrate knowledge across multiple domains. For example, a generative AI model can analyze both text and video data, combining insights from each into a unified semantic graph. In media analysis, this might involve extracting entities from both a news article and a related video interview, merging them to provide a more holistic understanding of a story.

This ability to pull in information from various sources and formats significantly enhances the breadth and depth of the knowledge represented in the semantic graph.

Demonstrating Semantic Graph Generation from Video Using SecureGPT

In today’s AI-driven world, the ability to extract knowledge from multimedia content like videos is becoming increasingly valuable. SecureGPT, a generative AI platform, offers a powerful solution for transforming video content into structured, insightful data through semantic graph generation. In this article, I demonstrate how SecureGPT processes video content to generate semantic graphs, turning complex, unstructured information into actionable insights.

How Semantic Graphs are Generated from Video Using SecureGPT

In this demonstration, SecureGPT takes a video file as input, containing both visual and audio components, and processes the data to generate semantic graphs. A semantic graph is a representation of entities (such as people, objects, or concepts) and the relationships between them. By using SecureGPT, users can extract meaningful relationships and contextual information from video data, providing valuable insights into the content.

Here is the link to the video: https://youtu.be/caLihAALHRk

Demonstration of how SecureGPT generates semantic graph from video contents

How Semantic Graphs are Generated from Video Using SecureGPT

In this demonstration, SecureGPT takes a video file as input, containing both visual and audio components, and processes the data to generate semantic graphs. A semantic graph is a representation of entities (such as people, objects, or concepts) and the relationships between them. By using SecureGPT, users can extract meaningful relationships and contextual information from video data, providing valuable insights into the content.

SecureGPT Output: Customizable Knowledge Representation

Once SecureGPT has analyzed the video, the output can be delivered in several formats based on user specifications, including triples, JSON, or any other structured data format. Here’s a breakdown of the available output options:

  1. Triples: One common way to represent relationships in a semantic graph is through triples. Each triple consists of a subject, predicate, and object, essentially forming a statement about the relationships between entities. For example, a video might generate the following triples:
(Person1, interacts_with, Person2)
(Vehicle, located_at, StreetName)
(Speaker, mentions, ProductName)

2. JSON: SecureGPT can also output the semantic graph in JSON format, which is ideal for integration with other systems or for further analysis. The JSON structure might look like this:

{
"entities": [
{"name": "Person1", "type": "human"},
{"name": "Person2", "type": "human"},
{"name": "Vehicle", "type": "object"}
],
"relationships": [
{"subject": "Person1", "predicate": "interacts_with", "object": "Person2"},
{"subject": "Vehicle", "predicate": "located_at", "object": "StreetName"}
]
}

3. Custom Formats: SecureGPT allows users to define custom output formats depending on their specific needs. This flexibility ensures that the output is easily interpretable and can be integrated into workflows seamlessly.

Example: How SecureGPT Works in a Video Scenario

Imagine you have a video of a business conference where different speakers present products and ideas. SecureGPT can process this video to generate a semantic graph that captures the following:

  • Entity Recognition: The platform identifies key entities such as the speakers, audience members, products mentioned, and locations within the conference.
  • Relationship Extraction: SecureGPT generates relationships between these entities, such as which speaker discussed which product, or which attendee asked questions during the Q&A session.
  • Contextual Understanding: By processing both the video and audio, SecureGPT can also analyze the context in which certain products or ideas were presented, providing deeper insights into the conversation.

The resulting output could be a set of triples or a JSON file detailing these interactions. For example, SecureGPT might generate a triple like (Speaker1, presents, ProductX) and further enrich the graph with relationships like (AudienceMember, asks_question_about, ProductX).

Applications of Generative AI-Powered Semantic Graphs

Generative AI-powered semantic graphs have the potential to transform a wide array of industries by enabling faster, more accurate knowledge extraction and analysis. Here are a few key examples:

1. Healthcare

Generative AI can extract knowledge from unstructured medical data, including patient records, research papers, and medical imaging. By building semantic graphs that represent diseases, treatments, and outcomes, healthcare providers can improve diagnosis accuracy, discover new treatment options, and better understand patient journeys.

For example, a semantic graph might reveal patterns between patient demographics, treatment plans, and recovery rates, offering valuable insights for precision medicine and personalized healthcare strategies.

2. Legal and Compliance

Legal documents are often dense and filled with complex language, making it difficult to extract relevant information. Generative AI can automate the extraction of legal entities (such as parties involved in a case, contracts, or regulatory statutes) and their relationships. This makes it easier for legal professionals to search, analyze, and draw insights from vast libraries of documents.

A semantic graph could highlight relationships between court cases, legal precedents, and specific statutes, helping lawyers quickly find relevant information.

3. Financial Services

In finance, understanding the relationships between market events, companies, and economic indicators is critical. Generative AI can build semantic graphs that link financial reports, market news, and macroeconomic trends, giving investors and analysts a clearer picture of market dynamics.

For instance, an AI-generated semantic graph could connect corporate earnings reports with stock price fluctuations and broader market movements, helping analysts identify investment opportunities or risks.

4. Business Intelligence

Generative AI can help companies build semantic graphs that represent internal data, including sales figures, customer interactions, and supply chain information. By analyzing these relationships, businesses can optimize operations, improve customer experiences, and make data-driven decisions more efficiently.

For example, a company might use a semantic graph to map the relationship between customer satisfaction scores and product delivery times, uncovering areas for operational improvements.

Conclusion

Generative AI is transforming how semantic graphs are created and utilized for knowledge extraction. By automating the identification of entities, generating meaningful relationships, and understanding the context in which information exists, generative AI enables faster and more insightful analysis of unstructured data. Whether in healthcare, finance, legal services, or other domains, the synergy between generative AI and semantic graphs is unlocking new possibilities for extracting and interpreting knowledge from diverse data sources.

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Sam Ansari
Sam Ansari

Written by Sam Ansari

CEO, author, inventor and thought leader in computer vision, machine learning, and AI. 4 US Patents.

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