projects

A pure-C nerual network library using only integer arithmetic, designed for embedded systems and low-power devices. Adopted DFA and Quantized Activation to avoid overflow/underflow.

paper

Developed a multi-head transformer-based model to detect and localize forgery in document images. Reached an F1 score of 94.27 through optimizations, which was among the top 3 of the leaderboard.

paper

Extended xv6 os kernel on several aspects, including environment variable support, priority-based scheduling and private kernel pagetable, etc.

A bare-bones database implementation plus support for B+ tree indices, efficient join algorithms, query optimization, multigranularity locking to support concurrent execution of transactions, and database recovery.