Dimensionality reduction from n >> 2 dimensions to 2 dimensions can be very fickle, so the hyperparameters matter. Your visualization can change significantly significantly depending on choice of metric.
You may want to consider projecting to more than 2 dimensions too. You may ask, how does one visualize more than two dimensions? Through a scatterplot matrix of 2 axes at a time.
These are used for PCA-type multivariate analyses to visualize latent variables in higher dimensions than 2, but 2 dimensions at a time. Some clustering behavior that cannot be seen in 2 axes might be seen in higher dimensions. We used to do this our lab to find anomalies in high dimensions.
About fickleness... indeed i've found this a kinda problematic thing when running large-d text embeddings through umap -- it always comes out spherical, blob-shaped, without any obvious segregation in the low-d projected space.
IMO it's very difficult to make a "fire and forget" embedding interpreter. Maybe I never found the right parameters to umap but the results of running it (or any dimension reduction algo) always left me a bit underwhelmed.
lmk if anyone has any thoughts...if I could go back I may have not gone through Electron
Doing dimensionality reduction locally posed a few challenges in terms of application size--the idea was that by analyzing just a few thousand randomly sampled points you can get an idea of your data through a local GUI where you interact with your data and see some correlated metadata.
Not sure if there's too much need for an individual GUI to go along with Postgres as a VectorDB, maybe people just do analysis separate from a normal "GUI"? But maybe not.
If I had a nickel for GUI/viz tools that bury the image/video or straight up don't have it in the readme.. lends credence to the popular opinion that engineers don't know how to communicate
As a non-native English speaker and not very familiar with vector database, the title seems very ambiguous to me. I understand it as Postgres as a GUI for some VectorDB. Upon closer inspection, I realized that "Postgres as a VectorDB" is a full name. Maybe shorten that thing to something else. Just my 2 cents.
https://github.com/Z-Gort/Reservoirs-Lab/blob/main/src/elect...
Dimensionality reduction from n >> 2 dimensions to 2 dimensions can be very fickle, so the hyperparameters matter. Your visualization can change significantly significantly depending on choice of metric.
https://umap-learn.readthedocs.io/en/latest/parameters.html
You may want to consider projecting to more than 2 dimensions too. You may ask, how does one visualize more than two dimensions? Through a scatterplot matrix of 2 axes at a time.
https://seaborn.pydata.org/examples/scatterplot_matrix.html
These are used for PCA-type multivariate analyses to visualize latent variables in higher dimensions than 2, but 2 dimensions at a time. Some clustering behavior that cannot be seen in 2 axes might be seen in higher dimensions. We used to do this our lab to find anomalies in high dimensions.