Search Results - subject:"Event detection"

Leveraging cross-media analytics to detect events and mine opinions for emergency management

Xu, Wei; Liu, Lingyu; Shang, Wei - In: Online Information Review 41 (2017) 4, pp. 487-506

management departments. Design/methodology/approach In this paper, a novel emergency event detection and opinion mining method is … proposed for emergency management using cross-media analytics. In the proposed approach, an event detection module is …/value This research work contributes to the design of a decision support system for emergency event detection and opinion mining …

Persistent link: https://www.econbiz.de/10014966969

Identifying events in financial time series : a new approach with bipower variation

Andor, György; Bohák, András - In: Finance research letters 22 (2017), pp. 42-48

Persistent link: https://www.econbiz.de/10011807956

HCDA : hybrid collision aware data aggregation in wireless sensor networks

Gopikrishnan, S.; Priakanth, P. - In: International journal of networking and virtual … 17 (2017) 2/3, pp. 202-228

Persistent link: https://www.econbiz.de/10011825166

ISEQL, an Interval-based Surveillance Event Query Language

Helmer, Sven; Persia, Fabio - In: International Journal of Multimedia Data Engineering … 7 (2016) 4, pp. 1-21

The authors propose ISEQL, a language based on relational algebra extended by intervals for detecting high-level surveillance events from a video stream. The operators they introduce for describing temporal constraints are based on the well-known Allen's interval relationships and we implemented...

Persistent link: https://www.econbiz.de/10012046512

Review on event detection techniques in social multimedia

Garg, Muskan; Kumar, Mukesh - In: Online Information Review 40 (2016) 3, pp. 347-361

to consider multiple variables for event detection and analysis including weather data, temporal data, geo-location data … practitioners to study the latent patterns for event detection from social media signals. Originality/value – This paper provides …

Persistent link: https://www.econbiz.de/10014966968

SLinRA2S : actively supporting regression analysis with R

Wu, Chien-ho; Li, Jung-bin; Chang, Tsair-yuan - In: Information systems and e-business management : ISeB 13 (2015) 2, pp. 309-328

Persistent link: https://www.econbiz.de/10011290597

A novel information technology of load events detection for the energy management information systems

Chang, Hsueh-hsien; Lin, Ching-lung - In: Information systems and e-business management : ISeB 13 (2015) 2, pp. 289-308

Persistent link: https://www.econbiz.de/10011290598

Detecting Management Fraud in Public Companies

Cecchini, Mark; Aytug, Haldun; Koehler, Gary J.; … - In: Management Science 56 (2010) 7, pp. 1146-1160

This paper provides a methodology for detecting management fraud using basic financial data. The methodology is based on support vector machines. An important aspect therein is a kernel that increases the power of the learning machine by allowing an implicit and generally nonlinear mapping of...

Persistent link: https://www.econbiz.de/10009293035

A new online method for event detection and tracking: empirical evidence from the French stock market

Saidane, Mohamed; Lavergne, Christian - In: American Journal of Finance and Accounting 1 (2008) 1, pp. 20-51

In this article we propose a new approach in event studies based on a hidden Markov chain combined with a classical event study model. The number of states informs us about the number of significant events affecting the related market, and the identification of the hidden states determines...

Persistent link: https://www.econbiz.de/10005751911

A new online method for event detection and tracking: empirical evidence from the French stock market

Saidane, Mohamed; Lavergne, Christian - In: American Journal of Finance and Accounting 1 (2008) 1, pp. 20-51

Persistent link: https://www.econbiz.de/10008539452