README.md

VHAKG tools

This repository provides a set of tools for searching and extracting videos from VHAKG, a multi-modal knowledge graph (MMKG) of multi-view videos of daily activities.

Contents

• How to use
  • Prerequisites
  • GUI
  • CLI
  • SPARQL
• How to develop
• Experiments

How to use

Prerequisites

• Local machine (RAM: 32GB, HDD: free space 150GB)
  • If there is not enough free memory, loading will be skipped; increase Docker's memory allocation. We have allocated 16 GB of memory to Docker and confirmed that it works. It may work with a little less.
• Install Docker
• Download VHAKG
  

GUI

• Run mkdir RDF.
• Place VHAKG's .ttl files on RDF/ only for the first time
  • Important: Please do not place any files other than .ttl under the RDF/. Please delete .DS_Store if it exists.
• Run chmod +x entrypoint.sh only for the first time
• Run docker compose up --build -d
  • Important: If you are not using Apple Silicon, you must change the GraphDB image in compose.yaml from ontotext/graphdb:10.4.4-arm64 to ontotext/graphdb:10.4.4
• Wait for data to be loaded until the Docker GraphDB container displays the log [main] INFO com.ontotext.graphdb.importrdf.Preload - Finished.
• Open http://localhost:5050
  • Please wait a moment when you open first time, as the back-end system needs to load the activity data.
• Select the search tool you would like to use

Note

You can switch between two types of search tools by clicking the button at the top left of each page.

Demonstration

• Searching by activities
  • http://localhost:5050

• Searching by actions
  • http://localhost:5050/action-object-search

CLI

• Perform the same steps as in GUI
• Run cd cli
• Run pip install -r requirements.txt only for the first time
• Select the tool you would like to use:
  • Search by activities
    • Run python mmkg-search.py -h if you want to know command arguments
    • Run python mmkg-search.py args
  • Search by actions
    • Run python action-object-search.py -h if you want to know command arguments
    • Run python action-object-search.py args

Example

Extract the video segment of the "grab" part from the camera4’s video of "clean_kitchentable1" in scene1.

python mmkg-search.py clean_kitchentable1 scene1 camera4 . -a grab

Extract videos which contain an event "put" and its main object is "bread" and its target object is "fryingpan".

python action-object-search.py put bread -t fryingpan -f .

SPARQL

• Users familiar with SPARQL can use the GraphDB SPARQL endpoint at localhost:7200/sparql.

How to develop

GUI

• Run mkdir RDF only for the first time
• Place RDF Data on RDF/ only for the first time
• Run chmod +x entrypoint.sh only for the first time
• Run COMPOSE_FILE=compose.yaml:development.yaml docker compose up
• Wait for data to be loaded until the Docker GraphDB container displays the log [main] INFO com.ontotext.graphdb.importrdf.Preload - Finished.
• Open http://localhost:3000

Lint

• Run docker compose exec app-dev sh -c "cd /app && yarn lint"

Format

• Run docker compose exec app-dev sh -c "cd /app && yarn format"

CLI

Environment

• Run pyenv install miniforge3-4.14.0-2
• Run pyenv virtualenv miniforge3-4.14.0-2 vhakg-tools

Experiments

An experimental example of dataset creation and LVLM evaluation using VHAKG

Dataset creation

• Run pip install notebook
• Run jupyter notebook
• Open&Run create_benchmark_dataset.ipynb

Evaluation

GPT-4o and GPT-4V

• Run pip install openai
• Run jupyter notebook
• Open&Run evaluate_lvlm.ipynb with your OpenAI API key