Understanding Knowledge Graphs: The Core Driver of AI

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The Core Driver of Artificial Intelligence: Knowledge Graphs

The scale and speed of data and information generation today make it difficult for organizations to effectively extract valuable insights frommassive information and diverse sources. We rely on Google, Amazon, Alexa, and other chatbots because they help us find information and take action in ways that align with how we typically think.

As enterprises explore next-generation scalable data management methods, leveraging advanced features like automation has become a competitive advantage. Consider how businesses have undergone multiple powerful technological transformations. Despite making business cases, strategies, and long-term implementation roadmaps, many still struggle to achieve or embrace change.

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1. Limited understanding of business applications and use cases, which makes it hard to defineclear visions and strategies. 2. Not knowing where to start when selecting the most relevant and cost-effective business use cases and supporting rapid validation with business or functional teams,3. Multiple initiatives across the organization are not streamlined or optimized for the enterprise. 4. Enterprise data and information aredifferent, redundant, and not easily usable. 5. Lack of necessary skills and training.

Currently, most enterprises are developing or utilizingknowledge graphs to enhance their knowledge, data, and information management. Typically, these functions belong to existing roles or functions within the organization, such as data science or engineering, business analysis, information management, or data operations.

However, given the technological advancements in our work and market today, as well as the increasing value of organizational knowledge and data, leaders who treat information and data as assets and make strategic investments to enhance and optimize these information and data have begun tosee returns, allowing their employees to focus on more value-added tasks and contribute to building complex analytical work for the business.
The most pragmatic approach to developing a customized strategy and roadmap for knowledge graphs is to first examine the existing capabilities and foundational strengths in data and information management practices, such as metadata, taxonomies, ontologies, and knowledge graphs, as these will serve as foundational pillars for artificial intelligence.
Understanding Knowledge Graphs: The Core Driver of AI
Image Source: Google
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Monthly Salary of Knowledge Graph Engineers:30K-50K

The application fields of knowledge graphs are very broad, and more importantly, knowledge graphs are the ultimate linking engine for enterprise data management and also the driving force for new methods in artificial intelligence. So engineers, do you want to know what the salary of a knowledge graph engineer is?

According to incomplete statistics as of August 23, 2021, the average salary of knowledge graph engineers is33.1K/month, with71.3% earning between30K-50K.
Understanding Knowledge Graphs: The Core Driver of AI
Data Source: Job Friends

Looking at the changes in salary data over the years, from 2016 to 2021 the salary of knowledge graph engineers has been on the rise, and with the explosion of knowledge graph applications in various fields, the future salaries of knowledge graph engineers will continue to rise, making it a highly competitive position.

Understanding Knowledge Graphs: The Core Driver of AI
Data Source: Job Friends

Knowledge graph engineers in various regions earn significantly more than the average salary in their cities, proving that both the nation and enterprises are beginning to focus on the future applications of knowledge graphs, and that this field will have limitless development directions.

Understanding Knowledge Graphs: The Core Driver of AI
Data Source: Job Friends
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With Such High Salaries, What Exactly is a Knowledge Graph?

A knowledge graph is a large-scale semantic network that describes knowledge and models the relationships between all things in the world using graph models, and is one of the important ways of knowledge representation in the era of big data.

The most common representation of knowledge graphs is RDF (triples), which is a set of “entity x relationship x another entity” or “entity x attribute x attribute value”, where nodes represent entities (entity) or concepts (concept), and edges represent various semantic relationships between entities/concepts. Because knowledge graphs are rich in information such as entities, concepts, attributes, and relationships, they make it possible for machines to understand and interpret the real world.
In the 1970s and 1980s, traditional knowledge engineering and expert systems solved many problems, but they succeeded only in clearly defined, bounded, and closed application scenarios, relying heavily on expert intervention. Once open-ended questions arise, it becomes nearly impossible to implement, making itdifficult to adapt to the demands of open applications at scale in the era of big data. Compared to traditional knowledge representation, knowledge graphs have characteristics such as massive scale, rich semantics, high quality, and friendly structure, marking the entry of knowledge engineering into a new era.
Understanding Knowledge Graphs: The Core Driver of AI
Sources of traditional knowledge engineering and knowledge graphs: 2020 White Paper on Knowledge Graph Industry for AI “New Infrastructure”.
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The Knowledge Graph That You Can’t Live Without Is Playing an Indispensable Role

Knowledge graphs are all around you, and their application fields can be divided into four aspects: Good Governance, Benefit to the People, Industry Prosperity, and Intelligent Integration.

Good Governance

Urban Governance: Knowledge graphs empower smart public management systems in cities, creating a digital brain for urban areas.

Environmental Protection: Building an ecological environment knowledge base, forming a unified environmental data standard.

Benefit to the People

Healthcare: Providing knowledge services in areas such as medical guidance, auxiliary diagnosis, and pharmaceutical market expansion.

Educational Knowledge: Integrating educational knowledge graphs with machine learning algorithms to achieve intelligent adaptive education.

Industry Prosperity

Smart Buildings: Creating knowledge graphs in the construction industry primarily based on BIM data and standards.

General Business Management: Efficiently achieving the creation, accumulation, and utilization of knowledge resources within enterprise knowledge management platforms.

General Manufacturing: Modeling basic data to achieve multi-faceted coordination and control throughout the entire manufacturing process.

Intelligent Integration

Intelligent Risk Control and Credit Assessment: Combining knowledge graphs with machine learning to reshape the intelligent risk control process in finance.

Intelligent Investment Research Advisor: Solving pain points in the investment research field through automated data collection and industrial chain relationship reasoning.

Intelligent Product Marketing: Building multi-dimensional customer profiles with knowledge graphs to achieve precise personalized recommendations.

Source: 2020 White Paper on Knowledge Graph Industry for AI “New Infrastructure”.
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10 Steps to Build a Knowledge Graph

The core of knowledge graphs is their ability to coordinate and link structured and unstructured data, resulting in higher data quality, making them very suitable for machine learning. By using knowledge graphs, one can benefit from precise search and analysis, semantic data cataloging, deep text analysis, agile data integration, and other applications.

By incorporating tools and data into information management practices, such as semantic metadata enrichment, taxonomies, and ontologies, knowledge graphs will also become a perfect foundation for many AI applications. Although various industries are increasingly turning to knowledge graphs for better enterprise knowledge management, data, and content analysis, there is no universal method for building them.

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10 Key Steps for Building a General Knowledge Graph:

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Clarify Business and Expert Requirements: Determine the goals for data collection and define the questions to be answered.

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Collect and Analyze Relevant Data: Discover which datasets, taxonomies, and other information (proprietary, open, or commercially available) best meet the goals in terms of domain, scope, source, maintenance, etc.

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Clean Data to Ensure Quality: Correct any data quality issues to make the data fit for purpose. This includes removing invalid or meaningless entries, adjusting data fields to accommodate multiple values, fixing inconsistencies, etc.

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Create a Semantic Data Model: Thoroughly analyze different data schemas to prepare for data coordination. Reuse or design ontologies, application profiles, RDF shapes, or other mechanisms on how to use them together. Use standard forms such as RDF Schema and OWL to formalize the data model.

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Integrate Data with ETL or Virtualization: Apply ETL tools to transform data into RDF or use data virtualization techniques like NoETL, OBDA, GraphQL Federation to access it. Generate semantic metadata to make data easier to update, discover, and reuse.

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Coordinate Data through Alignment, Fusion, and Matching: Match descriptions of the same entities in overlapping datasets, process their attributes to merge information, and map their different taxonomies.

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Build a Data Management and Search Layer: Perfectly merge different graphs using the RDF data model. For locally stored data, GraphDB™ can effectively enforce the semantic of the data model through inference, consistency checking, and validation. It can scale in clusters and synchronize with Elasticsearch and other search engines to meet expected usage and performance requirements.

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Augment the Graph through Reasoning, Analysis, and Text Analysis: Enrich data by extracting new entities and relationships from text. Apply reasoning and graph analysis to discover new information. Now the data contained in the graph exceeds the sum of its constituent datasets. It also has better interconnectivity, leading to more content and deeper analysis.

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Maximize Data Availability: Start providing answers to original questions through various knowledge discovery tools (such as powerful SPARQL queries, user-friendly GraphQL interfaces, semantic search, faceted search, data visualization, etc.). Additionally, ensure that data is FAIR (findable, accessible, interoperable, and reusable).

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Make KG Easy to Maintain and Develop: Finally, after creating the knowledge graph and people start using it, keep it alive by setting up maintenance procedures—its development and updates from different sources will be consumed while maintaining high data quality.

Source: Big Data DT

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