Takuma Yamaguchi

Mercari, Inc. / Software Engineer / Data Engineer

Takuma Yamaguchi

Mercari, Inc. / Software Engineer / Data Engineer

東京

Takuma Yamaguchi

Mercari, Inc. / Software Engineer / Data Engineer

Why not create your own Wantedly profile?

Showcase yourself and your experiences to bring your professional story to life.

Join

Living with Data

機械学習や画像認識・コンピュータビジョンの研究に10年以上携わり、それらに加えオペレーションズリサーチ分野やビッグデータ関連のシステム開発、WEBアプリケーション開発などにも従事。現職、メルカリでは、画像認識を中心とした機械学習技術を積極的に使って、より良いサービスをユーザに届けられるように日々奮闘中。

June 2016
-
Present

Software Engineer / Data Engineer
Present

June 2016 -

Present

Bring a better customer experience with the latest technologies in machine learning and computer vision.

Jan 2012
-
May 2016

GREE, Inc.

5 years

Engineering Manager / Lead Engineer

Jan 2012 - May 2016

SNS & Game Data Analysis & Big Data Analysis System Operation (2012-2016): My responsibilities include SNS & game data analysis, big data analysis system operation, developing user tracking system / log collection system / BI tool / recommendation algorithms, and so on. Since the number of SNS & game data is huge like billions records per day, we have created and used on-premise Hadoop based analys

Apr 2006
-
Jan 2012

Research Scientist / Software Engneer

Apr 2006 - Jan 2012

Railway Automatic Ticket Gate (2010-2011): The aims of this project are to eliminate illegal passage and to realize supporting system for disability people in a train station. For that purpose, several cameras and an image processing engine are being installed to railway automatic ticket gate. Responsibilities include project management, designing and implementing scene understanding algorithm on CPU and DSP, and making proposal the work to clients.

Mar 2010

信州大学

Ph.D. in Engineering

Mar 2010

Ph.D. Thesis: Extracting Character Information from Images.

Technology Award from Scheduling Society of Japan

Feb 2008

Best Paper Award Honorable Mention in 8th IAPR International Workshop on Document Analysis Systems, 2008.

Feb 2008

Apr 2004
-
Mar 2006

Research Scientist / Software Engneer

Apr 2004 - Mar 2006

Image and Voice Understanding (2004-2006): Main responsibility was to improve the performances of OCR(Optical Character Recognition) engine and singing voice classification engine. The contributions were reducing computation time for OCR by a coarse-to-fine approach using multiple OCR engines hierarchically, and improving the performance of singing voice classification using a reliability parameter which was measured by my proposed method.

Mar 2004

信州大学

M.S. in Engineering

Mar 2004

M.S. Thesis: Character Extraction and Recognition on Natural Scene Images.

B.S. in Engineering

B.S. Thesis: Extracting Place-Names from Natural Scene.

Mar 1998

福岡県立八幡高等学校

Mar 1998


Skills and qualities

Deep Learning

0

TensorFlow

0

Algorithm

0

MySQL

0

HBase

0

Awards and Certifications

Technology Award from Scheduling Society of Japan

Feb 2008

Best Paper Award Honorable Mention in 8th IAPR International Workshop on Document Analysis Systems, 2008.

Feb 2008


Languages

Japanese - Native, English - Professional