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Message for students 2015: Jianquan Liu

May 2015

Jianquan Liu

With NEC, you can always realize your will

Jianquan Liu
Senior Researcher, Biometrics Research Laboratories

Received many awards in computer science, including the Department Director's Commendation, while in university. Has contributed greatly to international conferences, societies, and other academic arenas.

Developing an indispensable multimedia database for the era of big data

Our team is currently researching the development of a multimedia database. We are working on creating a database that will allow large images and photos to be stored and browsed instantly. One survey said that approximately 42% of all information that is treated as big data will be photos in 2020*, so creating a database that holds large volumes of photos and images that can be searched at high speeds is an extremely important issue for society. Meanwhile, NEC has the world's highest precision face recognition technology. The presence of a high performance database that can actually run this recognition technology is also indispensable. For example, by incorporating NEC's face recognition technology into the database that our team is developing, we could collate databases of missing person photos and databases of urban security camera images in real time. If these databases were to be used by local communities then they could become solutions for society that contribute to the safety and security of all residents.

  • *
    [1] Jianquan Liu, Shoji Nishimura, and Takuya Araki. Wally: A Scalable Distributed Automated Video Surveillance System with Rich Search Functionalities. In Proceedings of the 22nd ACM International Conference on Multimedia (ACM MM), pages 729-730, 2014.
    [2] John Gantz and David Reinsel. The Digital Universe in 2020: Big Data, Bigger Digital Shadows, and Biggest Growth in the Far East. IDC Technical Report, Dec. 2012.

An ideal environment where a research can discuss things with colleagues freely

Interview cut of Jianquan Liu

The reason we can perform this kind of research and development is that the team environment is really good. Especially, one feature of our team is that we are active on the academic side as well, and many members write theses and make presentations outside the company. Of course, we put these to practical use as well. I'm surrounded by such talented people but still able to freely talk with everyone while researching. This is actually extremely important. Researchers that work on their research silently, alone, will never come up with anything good. Without discussion, you can't notice any problems, you can't find solutions, and you won't be able to brush up. Being able to talk freely to the person next to you or to your team while working on your day to day research is an extremely ideal environment for a researcher.
One thing I felt since joining NEC is that it is a very kind company to young people who raise their hands. If you take the initiative, then you'll definitely be given a chance. I feel strongly that it's someplace where you can definitely do what you want to do. This is a big selling point for working at NEC, one that I want to tell students everywhere.

Deriving new solutions using new technology to solve the "Curse of Dimensionality"

I am currently researching and developing new indexing technology using similarities between data. The purpose is to create a new database system unique to NEC that can index high dimension data even more quickly. If I can create this database, then I can greatly expand its possibilities and move in on societal issues that until now were unsolvable. For example, we should be able to do this through pattern-recognition indexing, from finding what you're looking for in satellite imagery to finding anomalies in super high definition medical images.
There is the "Curse of Dimensionality" in our research field. As soon as data becomes higher dimensional, the search speed drops dramatically. I've come across the Curse of Dimensionality in the computer science research field I am currently working in. Solving this problem is a dream that I'm willing to risk my life as a researcher for. I'll continue my research to achieve my dream while developing technology that can contribute new value to society.