Prince of Songkla University and Hitachi Ltd Jointly Develop Sentiment Analysis Engine for Thai Language
February 20, 2019 at 03:29 am
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Prince of Songkla University Phuket Campus (PSU) and Hitachi Ltd. have commenced a program of joint research in the field of Thai natural language processing. As the first phase of this research, both parties have jointly developed an AI-driven prototype sentiment analysis engine capable of classifying documents written in the Thai language into positive, negative, and neutral sentiment categories. The engine analyses expressions using a sentiment dictionary refined based on approximately 100 million words of the Thai language data gathered from various social media. Although Thai has numerous specialized spoken language expressions and is known for being more difficult to process than other languages, the engine can perform high-precision sentiment analysis with support for spoken Thai expressions used on social media. PSU and Hitachi will work towards practical applications of the engine, utilizing real-time data posted on Facebook, Twitter and other social media to perform joint evaluations of the prototype, with plans to implement it as part of Hitachi's Sentiment Analysis Service(2) come April 2019.
Hitachi specializes in manufacturing and marketing of electronic and industrial equipments. Net sales (including intragroup) break down by family of products and services as follows:
- social infrastructure and industrial systems (24.7%): elevators, escalators, industrial facilities, railway systems, power generation units, etc. The group also provides engineering and construction of nuclear, hydroelectric, and thermal power plants services;
- information and telecommunications products and services (20.1%): systems integration, cloud computing, software, servers, hard disks, PCs, ATMs, data communication base stations, payment terminals, etc.;
- materials and components (16.6%): semi-conductor materials, printed circuit cards, cables, copper and forged steel products, magnetic materials, organic and inorganic chemical products, etc.;
- construction equipment (10%) : hydraulic excavators, wheel loaders, mining equipment, etc.;
- automotive systems (9.4%): powertrain systems, control systems, etc.;
- electronic products (9.2%): fiber-optic components, screen tubes, testing and measurement equipment, medical equipment, equipment for manufacturing semiconductors, etc.;
- household appliances (4.7%): heating and air conditioning equipments, refrigerators, washing machines, etc.;
- other (5.3%): mainly transport, financial and logistical services.
Net sales are distributed geographically as follows: Japan (49.2%), Asia (21.3%), North America (12.7%), Europe (10.8%) and other (6%).