Tag: knowledge base

Integrating Large Language Models and Knowledge Graphs for Extraction and Validation of Textual Data

by Marco Brambilla, posted in big data, data science, event, experience, Machine Learning / AI

Large manufacturing companies in mission-critical sectors like aerospace, healthcare, and defense, typically design, develop, integrate, verify, and validate products characterized by high complexity and low volume. They carefully document all phases for each product but analyses across products are challenging due to the heterogeneity and unstructured nature of the data in documents. In our research, … Continue reading Integrating Large Language Models and Knowledge Graphs for Extraction and Validation of Textual Data

Improving Topic Modeling with Knowledge Graph Embeddings

by Marco Brambilla, posted in data science

Topic modeling techniques have been applied in many scenarios in recent years, spanning textual content, as well as many different data sources. The existing researches in this field continuously try to improve the accuracy and coherence of the results. Some recent works propose new methods that capture the semantic relations between words into the topic … Continue reading Improving Topic Modeling with Knowledge Graph Embeddings

Extracting Emerging Knowledge from Social Media

by Marco Brambilla, posted in big data, data science, event, experience, social network, social network analysis

Knowledge in the world continuously evolves, and ontologies are largely incomplete.
We propose a method and a tool for discovering emerging entities by extracting them from social media.
Once instrumented by experts through very simple initialization, the method is capable of finding emerging entities; we propose a mixed syntactic + semantic method.

Keynote from Google Research on Building Knowlege Bases at #ICWE2016

by Marco Brambilla, posted in data science

I report here some highlights of the keynote speech by Xin Luna Dong at the 16th International Conference on Web Engineering (ICWE 2016). Incidentally, she is now moving to Amazon for starting a new project on building an Amazon knowledge base. Building knowledge bases still remains a challenging task. First, one has to decide how … Continue reading Keynote from Google Research on Building Knowlege Bases at #ICWE2016

A bottom-up, knowledge-aware approach to integrating and querying web data services – ACM Trans. on the Web

by Marco Brambilla, posted in data science

The October 2013 issue of the ACM Transaction on the Web includes an article of ours on bottom-up domain model design of connected web data sources. This is becoming a more and more important problem as a wealth of data services is becoming available on the Web. Indeed, building and querying Web applications that effectively … Continue reading A bottom-up, knowledge-aware approach to integrating and querying web data services – ACM Trans. on the Web