    Implemented and released the iOS and Android companion apps.
        </li>
        <li>
          Saved more than 2/3 electricity by deploying to student hostels to automatically control the air conditioners.
        </li>
      </ul>
    </details>

    <details open>
      <summary>
        Entity Modeling and Retrieval System, Principle Researcher
        <time>2012 - 2015</time>
      </summary>
      <p>
        Proposed a novel entity retrieval system based on entity factoid hierarchy,
        tog