4 papers
FlexiGrad: Adaptive Gradient Modulation for Hierarchical Fine-Grained Classification
Zilu Zhou, Dongliang Chang, Junhan Chen +1
Many fine-grained recognition tasks contain hierarchical labels such as order, family and species. Although this supervision should be beneficial, jointly optimising all levels oft…
Seeing as Experts Do: A Knowledge-Augmented Agent for Open-Set Fine-Grained Visual Understanding
Junhan Chen, Zilu Zhou, Yujun Tong +3
Fine-grained visual understanding is shifting from static classification to knowledge-augmented reasoning, where models must justify as well as recognise. Existing approaches remai…
ABCMB: A Python+JAX Package for the Cosmic Microwave Background Power Spectrum
Zilu Zhou, Cara Giovanetti, Hongwan Liu
We present ABCMB, a differentiable Einstein-Boltzmann solver for the cosmic microwave background (CMB). ABCMB is a complete code capturing important effects to linear order in $Î{…
Searching for Dark Matter Interactions with ACT, SPT and DES
Zilu Zhou, Neal Weiner
Models of a dark radiation sector with a mass threshold (WZDR+) have proved to be an appealing alternative to CDM. These models provide simple comparison models, grounded in we…