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What is Semantic AI?

The Fusion of Machine Learning and Knowledge Graphs for the Next Generation of AI Assistants

Semantic AI relies on machine learning, natural language processing, and knowledge graphs to understand the meaning behind text and deliver some of the following benefits:

  • Help eliminate data silos
  • Enrich customer data and content
  • Enable greater knowledge discovery across an organization

Due to its diverse capabilities such as text mining, tagging, semantic search, etc., it can be implemented along the whole data and content lifecycle in order to develop intelligent applications. A knowledge graph is used at the heart of a semantic-enhanced AI architecture, which provides means for making better use out of unstructured data and can be easily integrated in existing systems or coupled with other AI approaches such as Generative AI. 

Semantic AI can give organizations the framework to optimize workplace structures and processes, thus improving the employee experience and quality of service to customers.

The flexible, composable and open nature of knowledge-graph-based data delivery eases the challenge of ensuring the semantic consistency of data across the enterprise. This allows business users, software engineers and data scientists to find, understand and use the data they need.

Gartner (2024, Jaffri): “How to Build Knowledge Graphs That Enable AI-Driven Enterprise Applications

Six Core Aspects of Semantic AI

1. Data quality

Semantically enriched data serves as a basis for better data quality and provides more options for feature extraction. This results in a higher precision of prediction & classification calculated by machine learning algorithms. With knowledge graphs in place, an advanced data model can be used in order to make data interpretable and reusable in various contexts.

2. Easy to integrate

At the core of a Semantic AI architecture is a “semantic layer” which acts as the glue between company databases and front-end applications. A semantic layer, which encompasses knowledge graphs, semantic tagging, text mining, and semantic search, aggregates and unifies the data with enriched metadata, making all the necessary links to the systems themselves. A company can have various types of platforms – be it CMS, DAM, user portals, etc – and still utilize the semantic layer without hassle. Companies can begin experiencing the benefits of AI rather seamlessly

3. Structured data meets text

Company data is made up of a lot of text that machines struggle to read. Most machine learning algorithms work well either with text or with structured data, but those two types of data are rarely combined to serve as a whole. Only when a machine is able to reliably annotate and disambiguate the meaning of a text in an explainable way, can it be used for further automation, including in business-critical processes and decision making. Semantic AI helps you organize text so it can be combined with structured data and linked across your organization. Links and relations between business and data objects of all formats such as XML, relational data, CSV, and also unstructured text can be made available for further analysis.

4. Self-optimizing machines

Machine learning can help to extend knowledge graphs (e.g., through ‘corpus-based ontology learning’ or through graph mapping based on ‘spreading activation’), and in return, knowledge graphs can help to improve ML algorithms (e.g., through ‘distant supervision’). This integrated approach ultimately leads to systems that work like self optimizing machines after an initial setup phase, while being transparent to the underlying knowledge models.

An additional strength to Semantic AI is that while offers automated processes, the human is always kept in the loop; we operate on explainable AI principles where not all the power is left to the machines. While this integrated approach enable self-optimization, it also gives room for the product owners or subject matter experts to modify and adjust the output as needed through expert-assisted workflows.

5. Hybrid approach with Graph RAG

Semantic AI is the combination of methods derived from symbolic AI and statistical AI. Semantic AI has always focused on being able to infer and classify the meaning of large content sets in a largely automated way; it doesn’t just tackle the surface of the text, but uses natural language processing (NLP) to understand it more deeply. This is becoming especially important during the rise of Generative AI and Large Language Models (LLMs). 

LLMs like ChatGPT are admittedly powerful but have a strong deficit in traceability and accuracy – which are two qualities an organization cannot skip out on. Employees have very specific requirements when using technology to complete their tasks and they don’t want to be flooded with half-baked answers or incorrect output (in the GenAI world, this is called a “hallucination”). Specific knowledge models that are enriched with context are the way to mitigate this, and a knowledge graph is the most suitable option, which we hone through a specific technology design pattern called Graph RAG (or Semantic RAG).

Some of the main benefits of this approach include:

  • Fewer hallucinations
  • Context-based answer retrieval
  • Trsutworthy data source based on a company’s own training data
  • Traceability of answers
  • Reduced costs for maintenance

Read more about Graph RAG here >

6. Enriched user experiences with AI assistants

A “newer” subset of Generative AI technology is Conversational AI, which has soared in the market for its ability to transform the way employees access information in the workplace, enabling them to engage with machines in a more “natural,” sophisticated way. The Graph RAG approach as mentioned above in core aspect 5, helps create AI assistants that are more favorable than conventional (and therefore basic) chatbots. On top of its impressive natural language processing capabilities, it is enriched with semantic search to ensure that items and documents are found based on the user’s intent of the query and not just the keywords entered in the search field. Conversational applications that are powered by Graph RAG go beyond simple question-answering and also into retrieval and recommendation. 

The PoolParty team has created it’s own demo Conversational AI application which incorporates this methodology and delivers six key features. 

  1. Assisted prompt engineering
  2. Conversational generation and follow-up questions
  3. Clickable background information for each concept
  4. Semantic search of documents
  5. Additional document recommendations for further reading
  6. Summarized takeaways of all answers 
this image shows the title cover of an ebook about Conversational AI and Graph RAG

Five Key Considerations for a Sustainable Semantic AI Strategy

Though companies are willing to invest in AI, it is not easy to define a clear path on how to start. Therefore, we offer the five key considerations to help you deliver on the Semantic AI promise.

1. Plan for the Adoption of AI:

Define your actual business needs and be aware of the maturity level of AI technologies. Based on your execution capabilities embrace Semantic AI as an organizational strategy. Semantic AI offers you a future-proof framework to support AI with data integration, your first strategic step.

2. Avoid Black-Boxes:

To trust the results of AI applications where only a few experts understand the underlying techniques is a challenge that the AI community has not been able to solve. Semantic AI allows several stakeholders to develop and maintain AI applications. This way, you will mitigate dependency on experts and technologies and gain an understanding of how things work.

3. Work with a Linked Data Lifecycle:

From data capture to data usage, Semantic AI helps you generate, maintain and increase data quality at any step of the data lifecycle. You will profit from data-driven initiatives that are easy to implement. Subject matter experts without any specific knowledge about the underlying datasets could provide guidance on where to start.

4. Clean Up your Data:

Data is the underlying asset of every AI application. Semantic AI establishes a professional information management and data governance infrastructure to help you link and enrich your content assets semantically to obtain clean data to support your AI efforts.

5. Include Subject Matter Experts:

Increase the quality of your data with inputs from your organization’s most important assets, your employees. Semantic AI enables subject matter experts without mathematical or software engineering skills to understand the logic behind data processing and to contribute with their domain-specific knowledge.

Do you want more?

Read our guidebook to learn more about today’s most promising AI applications that are powered by semantic technologies.