9.30 Project (#1223)

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Author: gsy19971111

jointContribution/AI_Disease_Climate/TabM.py

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+# Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import math
+from typing import Literal
+from typing import Optional
+
+import paddle
+import paddle.nn as nn
+
+
+def init_rsqrt_uniform_(w: paddle.Tensor) -> paddle.Tensor:
+    bound = 1.0 / math.sqrt(w.shape[-1])
+    noise = paddle.uniform(w.shape, min=-bound, max=bound, dtype=w.dtype)
+    w.set_value(noise)
+    return w
+
+
+def init_random_signs_(w: paddle.Tensor) -> paddle.Tensor:
+    with paddle.no_grad():
+        p = paddle.full(w.shape, 0.5, dtype="float32")
+        s = paddle.bernoulli(p) * 2.0 - 1.0
+        s = paddle.cast(s, w.dtype)
+        w.set_value(s)
+    return w
+
+
+class NLinear(nn.Layer):
+    def __init__(self, k: int, in_f: int, out_f: int, bias: bool = True):
+        super().__init__()
+        self.k, self.in_f, self.out_f = k, in_f, out_f
+        self.weight = self.create_parameter(shape=[k, in_f, out_f])
+        self.bias_e = self.create_parameter(shape=[k, out_f]) if bias else None
+        self.reset_parameters()
+
+    def reset_parameters(self):
+        init_rsqrt_uniform_(self.weight)
+
+        if self.bias_e is not None:
+            init_rsqrt_uniform_(self.bias_e)
+
+    def forward(self, x):  # x: (B,K,I)
+        xk = paddle.transpose(x, [1, 0, 2])  # (K,B,I)
+        yk = paddle.bmm(xk, self.weight)  # (K,B,O)
+        y = paddle.transpose(yk, [1, 0, 2])  # (B,K,O)
+
+        if self.bias_e is not None:
+            y = y + self.bias_e
+        return y
+
+
+class ScaleEnsemble(nn.Layer):
+    def __init__(self, k: int, d: int, init="ones"):
+        super().__init__()
+        self.k, self.d = k, d
+        self.weight = self.create_parameter(shape=[k, d])
+        self.init = init
+        self.reset_parameters()
+
+    def reset_parameters(self):
+
+        if self.init == "ones":
+            self.weight.set_value(paddle.ones_like(self.weight))
+        else:
+            init_random_signs_(self.weight)
+
+    def forward(self, x):  # (B,K,D)
+        return x * self.weight
+
+
+class LinearBE(nn.Layer):
+    def __init__(
+        self, in_f: int, out_f: int, k: int, scale_init="ones", bias: bool = True
+    ):
+        super().__init__()
+        self.k, self.in_f, self.out_f = k, in_f, out_f
+        self.weight = self.create_parameter(shape=[in_f, out_f])
+        self.r = self.create_parameter(shape=[k, in_f])
+        self.s = self.create_parameter(shape=[k, out_f])
+        self.use_bias = bias
+        self.bias_e = self.create_parameter(shape=[k, out_f]) if bias else None
+        self.scale_init = scale_init
+        self.reset_parameters()
+
+    def reset_parameters(self):
+        init_rsqrt_uniform_(self.weight)
+
+        if self.scale_init == "ones":
+            self.r.set_value(paddle.ones_like(self.r))
+            self.s.set_value(paddle.ones_like(self.s))
+        else:
+            init_random_signs_(self.r)
+            init_random_signs_(self.s)
+
+        if self.use_bias:
+            init_rsqrt_uniform_(self.bias_e)
+
+    def forward(self, x):  # (B,K,I)
+        xr = x * self.r  # (B,K,I)
+        y = paddle.matmul(xr, self.weight)  # (B,K,O)
+        y = y * self.s
+
+        if self.use_bias:
+            y = y + self.bias_e
+        return y
+
+
+class MLPBlock(nn.Layer):
+    def __init__(self, d_in, d_hid, dropout, act="ReLU"):
+        super().__init__()
+        Act = getattr(nn, act)
+        self.net = nn.Sequential(
+            nn.Linear(d_in, d_hid),
+            Act(),
+            nn.Dropout(dropout),
+        )
+
+    def forward(self, x):
+        return self.net(x)
+
+
+class BackboneMLP(nn.Layer):
+    def __init__(self, n_blocks: int, d_in: int, d_hidden: int, dropout: float):
+        super().__init__()
+        blocks = []
+        for i in range(n_blocks):
+            blocks.append(MLPBlock(d_in if i == 0 else d_hidden, d_hidden, dropout))
+        self.blocks = nn.LayerList(blocks)
+
+    def forward(self, x):
+        for blk in self.blocks:
+            x = blk(x)
+        return x
+
+
+def _get_parent_by_path(root: nn.Layer, path_list):
+    cur = root
+    for p in path_list:
+
+        if hasattr(cur, p):
+            cur = getattr(cur, p)
+        else:
+            sub_layers = getattr(cur, "_sub_layers", None)
+
+            if sub_layers is None or p not in sub_layers:
+                raise AttributeError(
+                    f"Cannot locate sublayer '{p}' under '{type(cur).__name__}'"
+                )
+
+            cur = sub_layers[p]
+    return cur
+
+
+def _replace_linear(module: nn.Layer, k: int, mode: Literal["be", "packed"]):
+    to_replace = []
+    for full_name, layer in module.named_sublayers(include_self=False):
+
+        if isinstance(layer, nn.Linear):
+            parts = full_name.split(".")
+            parent_path, child_name = parts[:-1], parts[-1]
+            parent = _get_parent_by_path(module, parent_path) if parent_path else module
+            in_f = layer.weight.shape[0]
+            out_f = layer.weight.shape[1]
+
+            if mode == "be":
+                new_layer = LinearBE(in_f, out_f, k)
+                with paddle.no_grad():
+                    new_layer.weight.set_value(layer.weight.clone())
+                    if layer.bias is not None and new_layer.bias_e is not None:
+                        b = layer.bias.reshape([1, -1]).tile([k, 1])
+                        new_layer.bias_e.set_value(b)
+            else:  # packed
+                new_layer = NLinear(k, in_f, out_f, bias=layer.bias is not None)
+                with paddle.no_grad():
+                    w = layer.weight.unsqueeze(0).tile([k, 1, 1])
+                    new_layer.weight.set_value(w)
+
+                    if layer.bias is not None and new_layer.bias_e is not None:
+                        b = layer.bias.unsqueeze(0).tile([k, 1])
+                        new_layer.bias_e.set_value(b)
+
+            to_replace.append((parent, child_name, new_layer))
+    for parent, child_name, new_layer in to_replace:
+
+        if hasattr(parent, child_name):
+            setattr(parent, child_name, new_layer)
+        else:
+            parent._sub_layers[child_name] = new_layer
+
+
+class TabMFeatureExtractor(nn.Layer):
+    """arch_type: 'plain' | 'tabm' | 'tabm-mini' | 'tabm-packed'"""
+
+    def __init__(
+        self,
+        num_features: int,
+        arch_type: Literal["plain", "tabm", "tabm-mini", "tabm-packed"] = "tabm",
+        k: int = 32,
+        backbone_cfg: Optional[dict] = None,
+        reduce: bool = True,
+    ):
+        super().__init__()
+
+        if arch_type == "plain":
+            k = 1
+
+        self.k = k
+        self.reduce = reduce
+        cfg = backbone_cfg or dict(n_blocks=3, d_hidden=512, dropout=0.1)
+        self.d_hidden = cfg["d_hidden"]
+        self.backbone = BackboneMLP(**cfg, d_in=num_features)
+
+        if arch_type == "tabm":
+            _replace_linear(self.backbone, k, mode="be")
+            self.min_adapter = None
+        elif arch_type == "tabm-mini":
+            self.min_adapter = ScaleEnsemble(k, num_features, init="random-signs")
+        elif arch_type == "tabm-packed":
+            _replace_linear(self.backbone, k, mode="packed")
+            self.min_adapter = None
+        else:
+            self.min_adapter = None
+
+    def forward(self, x_num: paddle.Tensor):  # x_num: (B, D)
+
+        if self.k > 1:
+            x = x_num.unsqueeze(1).tile([1, self.k, 1])  # (B,K,D)
+        else:
+            x = x_num.unsqueeze(1)  # (B,1,D)
+
+        if self.min_adapter is not None:
+            x = self.min_adapter(x)
+
+        feats = self.backbone(x)  # (B,K,H)
+        return feats.mean(axis=1) if self.reduce else feats  # (B,H) or (B,K,H)

jointContribution/AI_Disease_Climate/config/era5_ukb.yaml

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+defaults:
+  - ppsci_default
+  - TRAIN: train_default
+  - TRAIN/ema: ema_default
+  - TRAIN/swa: swa_default
+  - EVAL: eval_default
+  - INFER: infer_default
+  - hydra/job/config/override_dirname/exclude_keys: exclude_keys_default
+  - _self_
+
+hydra:
+  run:
+    # dynamic output directory according to running time and override name
+    dir: outputs_era5_land_ukb/${now:%Y-%m-%d}/${now:%H-%M-%S}/${hydra.job.override_dirname}
+  job:
+    name: ${mode} # name of logfile
+    chdir: false # keep current working directory unchanged
+  callbacks:
+    init_callback:
+      _target_: ppsci.utils.callbacks.InitCallback
+  sweep:
+    # output directory for multirun
+    dir: ${hydra.run.dir}
+    subdir: ./
+
+# general settings
+mode: train # running mode: train/eval
+seed: 42
+output_dir: ${hydra:run.dir}
+log_freq: 1
+
+DATA_DIR: ./data/
+
+# model settings
+MODEL:
+  input_keys: ["video", "vec"]
+  output_keys: ["y"]
+  T: 12
+  H: 10
+  W: 10
+  C: 10
+  N: 24
+
+# training settings
+TRAIN:
+  epochs: 2
+  iters_per_epoch: 95
+  save_freq: 1
+  eval_during_train: false
+  eval_freq: 5
+  weight_decay: 1.0e-5
+  batch_size: 32
+  pretrained_model_path: null
+  checkpoint_path: null
+
+# evaluation settings
+EVAL:
+  pretrained_model_path: null
+
+# inference settings
+INFER:
+  max_batch_size: 128
+  batch_size: 32