Add METR-LA traffic prediction dataset with Parquet files

README.md

@@ -38,6 +38,7 @@ This dataset contains traffic flow data for time series forecasting tasks, commo
 ### Data Schema
 
 - `node_id`: Sensor/node identifier (0-206 for METR-LA, 0-324 for PEMS-BAY)
+- `t0_timestamp`: ISO 8601 timestamp of the reference time point (t+0) for each sequence
 - `x_t*_d*`: Input features at different time offsets and dimensions
   - `x_t-11_d0` to `x_t+0_d0`: Traffic flow values at 12 historical time steps
   - `x_t-11_d1` to `x_t+0_d1`: Time-of-day features (normalized 0-1)

metadata/test_metadata.json

@@ -0,0 +1,48 @@
+{
+  "x_offsets": [
+    -11,
+    -10,
+    -9,
+    -8,
+    -7,
+    -6,
+    -5,
+    -4,
+    -3,
+    -2,
+    -1,
+    0
+  ],
+  "y_offsets": [
+    1,
+    2,
+    3,
+    4,
+    5,
+    6,
+    7,
+    8,
+    9,
+    10,
+    11,
+    12
+  ],
+  "x_shape": [
+    6850,
+    12,
+    207,
+    2
+  ],
+  "y_shape": [
+    6850,
+    12,
+    207,
+    2
+  ],
+  "num_samples": 6850,
+  "input_length": 12,
+  "output_length": 12,
+  "num_nodes": 207,
+  "input_dim": 2,
+  "output_dim": 2
+}

metadata/train_metadata.json

@@ -0,0 +1,48 @@
+{
+  "x_offsets": [
+    -11,
+    -10,
+    -9,
+    -8,
+    -7,
+    -6,
+    -5,
+    -4,
+    -3,
+    -2,
+    -1,
+    0
+  ],
+  "y_offsets": [
+    1,
+    2,
+    3,
+    4,
+    5,
+    6,
+    7,
+    8,
+    9,
+    10,
+    11,
+    12
+  ],
+  "x_shape": [
+    23974,
+    12,
+    207,
+    2
+  ],
+  "y_shape": [
+    23974,
+    12,
+    207,
+    2
+  ],
+  "num_samples": 23974,
+  "input_length": 12,
+  "output_length": 12,
+  "num_nodes": 207,
+  "input_dim": 2,
+  "output_dim": 2
+}

metadata/val_metadata.json

@@ -0,0 +1,48 @@
+{
+  "x_offsets": [
+    -11,
+    -10,
+    -9,
+    -8,
+    -7,
+    -6,
+    -5,
+    -4,
+    -3,
+    -2,
+    -1,
+    0
+  ],
+  "y_offsets": [
+    1,
+    2,
+    3,
+    4,
+    5,
+    6,
+    7,
+    8,
+    9,
+    10,
+    11,
+    12
+  ],
+  "x_shape": [
+    3425,
+    12,
+    207,
+    2
+  ],
+  "y_shape": [
+    3425,
+    12,
+    207,
+    2
+  ],
+  "num_samples": 3425,
+  "input_length": 12,
+  "output_length": 12,
+  "num_nodes": 207,
+  "input_dim": 2,
+  "output_dim": 2
+}

test.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:c871a12a74a321e7c001e75bba485808f81c32407cc4b24004413cee2117e1c8
-size 42968721
+oid sha256:d5ef7e33df010a83c96f4972d81cdfda79e36000eae99077709e9cad8ab68144
+size 43026501

train.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:236ea3875adc64b2e16b603f9b6a88aee34fb391177d2a6a1eb90587ab147e12
-size 156941016
+oid sha256:bf9729fb89854e838e4891a7e7bec6665c1249324d9cbaf2d8eccb988de3299a
+size 157141808

val.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:fee8778dd9fa8d12f9222f5ec52ac4d3e653058bfc34d102379b511eca39fdeb
-size 22523510
+oid sha256:40ed97e9cf42f3863be80a82ae47291eb92eb67f279e42ed322d6c48d47071f6
+size 22552729