The MapScaping Podcast - GIS, Geospatial, Remote Sensing, earth observation and digital geography10 Jul 2024

Semantic Search For Geospatial

This podcast episode is all about semantic search and using embeddings to analyse text and social media data.

Dominik Weckmüller, a researcher at the Technical University of Dresden, talks about his PhD research, where he looks at how to analyze text with geographic references.

He explains hyperloglog and embeddings, showing how these methods capture the meaning of text and can be used to search big databases without knowing the topics beforehand.

Here are the main points discussed:

Intro to Semantic Search and Hyperloglog: Looking at social media data by counting different users talking about specific topics in parks, while keeping privacy in mind.
Embeddings and Deep Learning Models: Turning text into numerical vectors (embeddings) to understand its meaning, allowing for advanced searches.
Application Examples: Using embeddings to search for things like emotions or activities in parks without needing predefined keywords.
Creating and Using Embeddings: Tools like transformers.js let you make embeddings on your computer, making it easy to analyze text.
Challenges and Innovations: Talking about how to explain the models, deal with long texts, and keep data private when using embeddings.
Future Directions: The potential for using embeddings with different media (like images and videos) and languages, plus the ongoing research in this fast-moving field.

Connect with Dominik Weckmüller here https://geo.rocks/

Stay up to date with AI here

https://huggingface.co/ Try searching for “map” here https://huggingface.co/spaces

Check out this project I am working on

https://quickmaptools.com/

Denne episoden er hentet fra en åpen RSS-feed og er ikke publisert av Podme. Den kan derfor inneholde annonser.

Episoder(266)

Fields Of The World

Where does one field end and the next one begin? It sounds trivial right up until you try to answer it. In this episode, I'm joined by Hannah Kerner — Assistant Professor at Arizona State University, ...

18 Aug 43min

Virtual Worlds for Physical AI Systems

In this episode I'm joined by Apurva Shah, co-founder and CEO of Duality AI, a company building virtual worlds — or "world models" for robots and physical AI systems. Apurva's path here is an unusual ...

4 Aug 49min

GPS, But 100 Times Stronger

My guest today is Tyler Reid, co-founder and CTO of Xona, a company building the first commercial satellite navigation system. We get into why Tyler and his team are moving satellites into low Earth o...

29 Jul 43min

Turning Aerial Imagery Into a Searchable World

Vexcel isn't a household name — but you've almost certainly used their data. This aerial imaging company flies low-elevation aircraft across roughly 45 countries, capturing imagery at 7.5cm resolution...

28 Jul 55min

Cloud Native for the Rest of Us

What happens when you take cloud native geospatial out of the satellite-and-petabyte world and drop it into a small city with no budget and the world's slowest internet connection? In this episode, Da...

20 Jul 38min

Mapping With 360 Cameras

Jeffrey Martin is the co-founder and CEO of Mosaic, a company building 360-degree camera systems designed specifically for mapping. He's been obsessed with 360 imagery for over 20 years — he built one...

15 Jul 41min

Who Pays for Open Source?

Open source software runs a huge chunk of the geospatial world — but somebody still has to pay for it. In this episode I sit down with Marco Bernasocchi creator of QField and CEO of OpenGIS.ch, to dig...

1 Jul 54min

The Great Retooling

Ian Schuler is the CEO of Development Seed — the team behind a lot of the open source tooling that quietly holds up the geospatial world. He's been at the helm for over a decade, and in this conversat...

23 Jun 44min