(a) Galaxies selected for density estimation for a z-slice centered at z = 0.360. The size of each point is proportional to the weight assigned to each galaxy (Section 3.3). (b) Density field estimated using the weighted adaptive kernel smoothing estimator (Section 3.3) for the selected galaxies. (c) ﹩{\lambda }_{1}﹩ eigenvalue map of the Hessian matrix evaluated at the physical scale L = 1.00 Mpc. (d) ﹩{\lambda }_{2}﹩ eigenvalue map of the Hessian matrix evaluated at the physical scale L = 1.00 Mpc, assuming ﹩| {\lambda }_{2}| \geqslant | {\lambda }_{1}| ﹩. (e) Final cluster signal map for the z-slice at z = 0.360 after taking the multi-scale nature of the cosmic web into account. Note that for an ideal cluster we have ﹩| {\lambda }_{1}| ﹩ ≈ ﹩| {\lambda }_{2}| ﹩. (f) Final filament signal map for the z-slice at z = 0.360 after taking the multi-scale nature of the cosmic web into account. Note that for an ideal filament we have ﹩| {\lambda }_{1}| ﹩ ≪ ﹩| {\lambda }_{2}| ﹩.