Existing EEG recognition models suffer from poor cross-paradigm generalization due to dataset-specific constraints and individual variability. To overcome these limitations, we propose Bite (Bidirectional Time-Freq Pyramid Network), an end-to-end unified architecture featuring robust multistream synergy, pyramid time-frequency attention (PTFA), and bidirectional adaptive convolutions. The framework uniquely integrates: 1) Aligned time-frequency streams maintaining temporal synchronization with STFT for bidirectional modeling, 2) PTFA-based multiscale feature enhancement amplifying critical neural patterns, 3) BiTCN with learnable fusion capturing forward/backward neural dynamics. Demonstrating enhanced robustness, Bite achieves state-of-the-art performance across four divergent paradigms (BCICIV-2A/2B, HGD, SD-SSVEP), excelling in both withinsubject accuracy and cross-subject generalization. As a unified architecture, it combines robust performance across both MI and SSVEP tasks with exceptional computational efficiency. Our work validates that paradigm-aligned spectral-temporal processing is essential for reliable BCI systems. Just as its name suggests, Bite “takes a bite out of EEG.” We publicly release the model as BiteEEG, and the source code is available at https://github.com/cindy-hong/BiteEEG.

In a Network Function Virtualization (NFV) system, network functions (NFs) are implemented on general-purpose hardware, including CPU, GPU, and FPGA. Studies have shown that there is no one-size-fits-all processor, as each processor demonstrates performance advantages to implement certain types of NFs. With more general-purpose processors such as GPUs being deployed in data center servers, the best practice to build a high-performance NFV service chain should employ available heterogeneous processors. However, current NFV systems fail to utilize these processors for acceleration. This is because, due to separate memory spaces, data synchronization is demanded to guarantee correctness, which can incur non-trivial overhead and result in low performance. This paper proposes AdaptChain, a data management facility that enables adaptive data sharing and synchronization for hybrid NFV systems on heterogeneous architectures. AdaptChain shares the host and device memory among NFs in a service chain. With adaptive synchronization plan generation and NF code adaptation, AdaptChain exploits three classes of opportunities to reduce the amount of synchronized data while guaranteeing correctness. Experimental results show that AdaptChain improves the overall throughput by up to 3.2× and reduces the latency by up to 52%.