
Architecting Intelligent Systems with Mathematical Precision
Developer · Graduate AI/ML Researcher · Designer · Technical Writer

Md Tawhidul Islam
Graduate Researcher · Developer · Designer
import torch
import torch.nn as nn
from triton_kernels import selective_scan_fused
class SelectiveStateSpaceBlock(nn.Module):
"""
Hardware-fused Selective State-Space sequence model.
Linear complexity O(N) over long-context sequence reasoning.
"""
def __init__(self, d_model: int = 1024, d_state: int = 64):
super().__init__()
self.d_model = d_model
self.d_state = d_state
self.in_proj = nn.Linear(d_model, d_model * 2, bias=False)
self.x_proj = nn.Linear(d_model, d_state * 2 + 1, bias=False)
self.dt_proj = nn.Linear(1, d_model, bias=True)
self.out_proj = nn.Linear(d_model, d_model, bias=False)
def forward(self, u: torch.Tensor) -> torch.Tensor:
# u: [batch, seq_len, d_model]
batch, seq_len, _ = u.shape
x, z = self.in_proj(u).chunk(2, dim=-1)
# Continuous parameter discretization
delta_A_B = self.x_proj(x)
y = selective_scan_fused(x, delta_A_B, self.d_state)
return self.out_proj(y * nn.functional.silu(z))Technical Skills & Expertise
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