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Semantic Search: A Deeper Meaning

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The demand for locating and retrieving information continues to soar, paralleling its increasing volume. Equally important to both humans and computer-driven applications, the ability to access accurate and complete information is the foundation for understanding the present and predicting the future. Yet providing the perfect enterprise search solution has proved elusive, despite this intense demand.

The market for enterprise search software was estimated by SkyQuest Technology to be $4.58 billion in 2023 and is predicted to grow to $9.88 billion by 2032 (skyquestt.com/report/enterprise-search-market). This reflects a growth rate of about 9% per year. Industry Growth Insights predicts a higher rate for semantic search in particular: more than 16% per year (industrygrowthinsights.com/report/global-enterprise-semantic-search-software-market). But each of these predictions may be significantly understating the market. Increasingly, both lexical and semantic search are being integrated into KM platforms and may not be fully accounted for in these estimates.

Challenges to effective search come from both the inquiry and the content. “Search is a hard problem because users don’t always know how to articulate their information needs or encapsulate them into a query,” said Darin Stewart, research VP at Gartner. “In addition, organizations don’t always realize how much work goes into developing a search solution that is simple to use yet sophisticated in performance.” Most documents are written without search in mind and may even lack basics, such as good titles and metadata. “When you combine a poorly stated inquiry and a document that may have been written from a very different perspective, getting good results can be a challenge,” Stewart added.

While it is fair to say that search is still a work in progress, there has, in fact, been considerable progress. Increased computing power and more sophisticated analytical techniques have elevated search performance just in the past couple of years. In particular, semantic search has allowed for much more flexibility in how a question or request is phrased. Thanks to natural language processing (NLP), large language models (LLMs), and retrieval-augmented generation (RAG), the door has been opened for systems that can interpret the meaning of text, thereby discerning the user’s need or intent and providing a more relevant answer.

Knowledge-Intensive Businesses

Healthcare and professional services are knowledge-intensive industries with a high need for storage and retrieval of critical information. Semedy’s Knowledge Management System (KMS) focuses on these two industry sectors. The system stores knowledge assets and their semantic relationships; each knowledge asset is stored as an entity. The unified KMS incorporates many KM functions, including taxonomy management and enterprise search, into one platform.

“One of our key strengths is the system’s ability to maintain referential integrity of the knowledgebase as the content evolves,” said Charles Lagor, principal biomedical informaticist for Semedy. “Corruption of the knowledgebase is prevented through a variety of entity services,” he continued, “and can be extended with domain-specific custom constraints through validation rules."

As an example, electronic health record systems contain thousands of rules that are intended to ensure the safe prescription of drugs. “These rules depend on official code sets that are released monthly,” Lagor explained. “Any change in a medication code can have a downstream impact on the medication rules.” Semedy’s system manages those dependencies so that they align with the changing codes.

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