Hex2vec embedder
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from pytorch_lightning import seed_everything
from srai.embedders import Hex2VecEmbedder
from srai.joiners import IntersectionJoiner
from srai.loaders import OSMOnlineLoader
from srai.neighbourhoods import H3Neighbourhood
from srai.plotting import plot_numeric_data, plot_regions
from srai.regionalizers import H3Regionalizer, geocode_to_region_gdf
from pytorch_lightning import seed_everything
from srai.embedders import Hex2VecEmbedder
from srai.joiners import IntersectionJoiner
from srai.loaders import OSMOnlineLoader
from srai.neighbourhoods import H3Neighbourhood
from srai.plotting import plot_numeric_data, plot_regions
from srai.regionalizers import H3Regionalizer, geocode_to_region_gdf
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SEED = 71
seed_everything(SEED)
SEED = 71
seed_everything(SEED)
Seed set to 71
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71
Load data from OSM¶
First use geocoding to get the area
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area_gdf = geocode_to_region_gdf("Wrocław, Poland")
plot_regions(area_gdf, tiles_style="CartoDB positron")
area_gdf = geocode_to_region_gdf("Wrocław, Poland")
plot_regions(area_gdf, tiles_style="CartoDB positron")
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Next, download the data for the selected region and the specified tags. We're using OSMOnlineLoader
here, as it's faster for low numbers of tags. In a real life scenario with more tags, you would likely want to use the OSMPbfLoader
.
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tags = {
"leisure": "park",
"landuse": "forest",
"amenity": ["bar", "restaurant", "cafe"],
"water": "river",
"sport": "soccer",
}
loader = OSMOnlineLoader()
features_gdf = loader.load(area_gdf, tags)
folium_map = plot_regions(area_gdf, colormap=["rgba(0,0,0,0)"], tiles_style="CartoDB positron")
features_gdf.explore(m=folium_map)
tags = {
"leisure": "park",
"landuse": "forest",
"amenity": ["bar", "restaurant", "cafe"],
"water": "river",
"sport": "soccer",
}
loader = OSMOnlineLoader()
features_gdf = loader.load(area_gdf, tags)
folium_map = plot_regions(area_gdf, colormap=["rgba(0,0,0,0)"], tiles_style="CartoDB positron")
features_gdf.explore(m=folium_map)
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Prepare the data for embedding¶
After downloading the data, we need to prepare it for embedding. Namely - we need to regionalize the selected area, and join the features with regions.
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regionalizer = H3Regionalizer(resolution=9)
regions_gdf = regionalizer.transform(area_gdf)
plot_regions(regions_gdf, tiles_style="CartoDB positron")
regionalizer = H3Regionalizer(resolution=9)
regions_gdf = regionalizer.transform(area_gdf)
plot_regions(regions_gdf, tiles_style="CartoDB positron")
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joiner = IntersectionJoiner()
joint_gdf = joiner.transform(regions_gdf, features_gdf)
joint_gdf
joiner = IntersectionJoiner()
joint_gdf = joiner.transform(regions_gdf, features_gdf)
joint_gdf
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region_id | feature_id |
---|---|
891e2040897ffff | node/280727473 |
891e2040d4bffff | node/300461026 |
node/300461036 | |
891e2040d5bffff | node/300461042 |
891e2040887ffff | node/300461045 |
... | ... |
891e2040e0fffff | way/1381322928 |
891e2040e07ffff | way/1381322928 |
891e2040e0fffff | way/1381322931 |
891e2045423ffff | way/1381875210 |
891e2045433ffff | way/1381875215 |
4080 rows × 0 columns
Embedding¶
After preparing the data we can proceed with generating embeddings for the regions.
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import warnings
neighbourhood = H3Neighbourhood(regions_gdf)
embedder = Hex2VecEmbedder([15, 10])
with warnings.catch_warnings():
warnings.simplefilter("ignore")
embeddings = embedder.fit_transform(
regions_gdf,
features_gdf,
joint_gdf,
neighbourhood,
trainer_kwargs={"max_epochs": 5, "accelerator": "cpu"},
batch_size=100,
)
embeddings
import warnings
neighbourhood = H3Neighbourhood(regions_gdf)
embedder = Hex2VecEmbedder([15, 10])
with warnings.catch_warnings():
warnings.simplefilter("ignore")
embeddings = embedder.fit_transform(
regions_gdf,
features_gdf,
joint_gdf,
neighbourhood,
trainer_kwargs={"max_epochs": 5, "accelerator": "cpu"},
batch_size=100,
)
embeddings
GPU available: False, used: False
TPU available: False, using: 0 TPU cores
HPU available: False, using: 0 HPUs
| Name | Type | Params | Mode ----------------------------------------------- 0 | encoder | Sequential | 280 | train ----------------------------------------------- 280 Trainable params 0 Non-trainable params 280 Total params 0.001 Total estimated model params size (MB) 4 Modules in train mode 0 Modules in eval mode
`Trainer.fit` stopped: `max_epochs=5` reached.
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0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |
---|---|---|---|---|---|---|---|---|---|---|
region_id | ||||||||||
891e20451dbffff | 0.341121 | -0.233200 | -0.032582 | 0.283789 | 0.225126 | -0.121932 | -0.268539 | -0.101162 | -0.202295 | 0.359276 |
891e2040303ffff | 0.161674 | -0.324404 | 0.170621 | -0.468899 | -0.172985 | 0.014379 | 0.271801 | 0.007779 | -0.035657 | -0.579238 |
891e2042e87ffff | -0.335875 | 0.034417 | -0.317022 | -0.457310 | 0.010872 | 0.237203 | -0.391713 | 0.332970 | -0.116267 | 0.014791 |
891e2040047ffff | 0.075466 | 0.231667 | 0.426737 | 0.639714 | -0.117938 | -0.045049 | 0.318600 | -0.399800 | 0.392185 | 0.144864 |
891e20456abffff | -0.590075 | 0.408845 | 0.171205 | -0.345272 | -0.436478 | 0.255101 | 0.442141 | 0.022474 | 0.324550 | -0.485723 |
... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... |
891e2042a37ffff | 0.341121 | -0.233200 | -0.032582 | 0.283789 | 0.225126 | -0.121932 | -0.268539 | -0.101162 | -0.202295 | 0.359276 |
891e204192bffff | 0.326246 | 0.224254 | 0.317510 | 0.535413 | -0.143091 | -0.390972 | 0.803022 | -0.365947 | 0.583426 | -0.236704 |
891e20422bbffff | 0.341121 | -0.233200 | -0.032582 | 0.283789 | 0.225126 | -0.121932 | -0.268539 | -0.101162 | -0.202295 | 0.359276 |
891e20403dbffff | 0.341121 | -0.233200 | -0.032582 | 0.283789 | 0.225126 | -0.121932 | -0.268539 | -0.101162 | -0.202295 | 0.359276 |
891e2042407ffff | -0.335875 | 0.034417 | -0.317022 | -0.457310 | 0.010872 | 0.237203 | -0.391713 | 0.332970 | -0.116267 | 0.014791 |
3168 rows × 10 columns
Visualizing the embeddings' similarity¶
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from sklearn.cluster import KMeans
clusterizer = KMeans(n_clusters=5, random_state=SEED)
clusterizer.fit(embeddings)
embeddings["cluster"] = clusterizer.labels_
embeddings
from sklearn.cluster import KMeans
clusterizer = KMeans(n_clusters=5, random_state=SEED)
clusterizer.fit(embeddings)
embeddings["cluster"] = clusterizer.labels_
embeddings
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0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | cluster | |
---|---|---|---|---|---|---|---|---|---|---|---|
region_id | |||||||||||
891e20451dbffff | 0.341121 | -0.233200 | -0.032582 | 0.283789 | 0.225126 | -0.121932 | -0.268539 | -0.101162 | -0.202295 | 0.359276 | 0 |
891e2040303ffff | 0.161674 | -0.324404 | 0.170621 | -0.468899 | -0.172985 | 0.014379 | 0.271801 | 0.007779 | -0.035657 | -0.579238 | 1 |
891e2042e87ffff | -0.335875 | 0.034417 | -0.317022 | -0.457310 | 0.010872 | 0.237203 | -0.391713 | 0.332970 | -0.116267 | 0.014791 | 3 |
891e2040047ffff | 0.075466 | 0.231667 | 0.426737 | 0.639714 | -0.117938 | -0.045049 | 0.318600 | -0.399800 | 0.392185 | 0.144864 | 2 |
891e20456abffff | -0.590075 | 0.408845 | 0.171205 | -0.345272 | -0.436478 | 0.255101 | 0.442141 | 0.022474 | 0.324550 | -0.485723 | 1 |
... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... |
891e2042a37ffff | 0.341121 | -0.233200 | -0.032582 | 0.283789 | 0.225126 | -0.121932 | -0.268539 | -0.101162 | -0.202295 | 0.359276 | 0 |
891e204192bffff | 0.326246 | 0.224254 | 0.317510 | 0.535413 | -0.143091 | -0.390972 | 0.803022 | -0.365947 | 0.583426 | -0.236704 | 2 |
891e20422bbffff | 0.341121 | -0.233200 | -0.032582 | 0.283789 | 0.225126 | -0.121932 | -0.268539 | -0.101162 | -0.202295 | 0.359276 | 0 |
891e20403dbffff | 0.341121 | -0.233200 | -0.032582 | 0.283789 | 0.225126 | -0.121932 | -0.268539 | -0.101162 | -0.202295 | 0.359276 | 0 |
891e2042407ffff | -0.335875 | 0.034417 | -0.317022 | -0.457310 | 0.010872 | 0.237203 | -0.391713 | 0.332970 | -0.116267 | 0.014791 | 3 |
3168 rows × 11 columns
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plot_numeric_data(regions_gdf, "cluster", embeddings)
plot_numeric_data(regions_gdf, "cluster", embeddings)
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