Search Results - subject:"Topic Extraction"

Topic modeling and sentiment analysis of Yelp restaurant reviews

Zhang, Sonya; Ly, Linda; Mach, Norman; Amaya, Christian - In: International journal of information systems in the … 14 (2022) 1, pp. 1-16

Persistent link: https://www.econbiz.de/10014291783

Twitter and market efficiency in energy markets : evidence using LDA clustered topic extraction

Polyzos, Efstathios; Wang, Fang - In: Energy economics 114 (2022), pp. 1-12

Persistent link: https://www.econbiz.de/10013477582

How to exploit Big Social Data in the Covid-19 pandemic : the case of the Italian tourism industry

Solazzo, Gianluca; Maruccia, Ylenia; Ndou, Valentina; … - In: Service business 16 (2022) 3, pp. 417-443

Persistent link: https://www.econbiz.de/10013459433

Combining topic modeling and SAO semantic analysis to identify technological opportunities of emerging technologies

Ma, Tingting; Zhou, Xiao; Liu, Jia; Lou, Zhenkai; Hua, … - In: Technological forecasting & social change : an … 173 (2021), pp. 1-14

Persistent link: https://www.econbiz.de/10013204387

An Automatic Video Reinforcing System for TV Programs using Semantic Metadata from Closed Captions

Wang, Yuanyuan; Kitayama, Daisuke; Kawai, Yukiko; … - In: International Journal of Multimedia Data Engineering … 7 (2016) 1, pp. 1-21

There are various TV programs such as travel and educational programs. While watching TV programs, viewers often search related information about the programs through the Web. Nevertheless, as TV programs keep playing, viewers possibly miss some important scenes when searching the Web. As a...

Persistent link: https://www.econbiz.de/10012046500

Forecasting the daily outbreak of topic-level political risk from social media using hidden Markov model-based techniques

Suh, Jong Hwan - In: Technological forecasting & social change : an … 94 (2015), pp. 115-132

Persistent link: https://www.econbiz.de/10011389992