Language Models over Large-Scale Knowledge Base

Introduction

This repository provides code and datasets for paper “Language Models over Large-Scale Knowledge Base: on Capacity, Flexibility and Reasoning for New Facts”.

Dependencies

• python=3.9.18
• torch==2.0.0
• accelerate==0.24.1
• numpy==1.24.1
• deepspeed==0.12.2

We also use a public fork of HuggingFace transformer library to address the left padding problem that may impact the inference results: pip install git+https://github.com/yizhongw/transformers.git@left_padding

Data

You can download our world knowledge dataset from link. Alternative, you can compile your own knowledge dataset into a json file with each line formatted as

{"subj":"subject_text","rel":"relation_text","obj":"object_text"}

Other downstream dataset are available in the /data folder.

Code

Among five python files, t5km.py and t5km_bf16.py are for training and evaluating T5 models in FT32 and BF16 respectively. llama2_km.py is for training LLaMA-2 models and llama2_ft.py is for downstream finetuning and evaluating. In addition, kbc-eval.py is for computing the exact match and F1 scores for general missing fact completion, where multiple answer candidates are available. Several example bash scripts are included in the /scripts folder.