News classification is a complex issue as people are easily convinced of misleading information and lack control over the spread fake news. However, we ca n break problem spreading news with artificial intelligence (AI), which has developed rapidly. This study proposes model using light gradient boosted machine (LightGBM) algorithm. The analyzed two feature extraction techniques, count vectoriz...

The fact-checking is an important tool to improve the quality of information that circulates in virtual networks. Although there are different verification agencies, we also found some more informal strategies such as use hashtag #Stopbulos. Thus, this research aims characterize #StopBulos on Twitter a way verify and control spread fake news. results showed was diversity among users themes twee...

The infection times of individuals in online information spread such as the inter-arrival time of Twitter messages or the propagation time of news stories on a social media site can be explained through a convolution of lognormally distributed observation and reaction times of the individual participants. Experimental measurements support the lognormal shape of the individual contributing proce...

The bad news principle states that only the expected severity of future bad news matters for the decision whether to invest today, good news should not matter at all. This paper tests this prediction using firm level expectation data.  2000 Elsevier Science S.A. All rights reserved.

There is agreement amongst media commentators that the spread of so-called fake news poses a serious threat to democratic society, and as history educators, we have an obligation help stem rising tide misinformation.

Abstract News dissemination online is driven by three gatekeeping logics: the logic of news media (publishing), social actors (sharing), and platform algorithms (spreading), each guided different values with a relationship to content. Using reverse engineering approach, this study applies 2015 dataset empirically explore how Facebook algorithm changed overall composition users saw, highlighting...

Social scientists have long recognized the importance of social networks in the spread of information [Granovetter 1973], products [Brown and Reingen 1987; Watts and Dodds 2007], and innovation [Rogers 2003]. Modern communications technologies, notably email and more recently social media, have only enhanced the role of networks in marketing [Domingos and Richardson 2001; Kempe et al. 2003], in...

The Web has become a ubiquitous tool for distributing knowledge and information and for conducting businesses. To exploit the huge potential of the Web as a global information repository, it is necessary to understand its dynamics. These issues are particularly important for news Web sites as they are expected to provide fresh information on current world events to a potentially large user popu...

 Commodity markets: overview, description and structure  Commodity spot price models, their performance and calibration  Forward curve modeling for commodities  Modeling commodity price volatility  Correlations/dependencies in commodity portfolios  Modeling risk of a commodity portfolio  Typical commodity derivatives (quanto, Asian, spread and basket options, volumetric and swing options...

The epidemic spread of fake news is a side effect the expansion social networks to circulate news, in contrast traditional mass media such as newspapers, magazines, radio, and television. Human inefficiency distinguish between true false facts exposes threat logical truth, democracy, journalism, credibility government institutions. In this paper, we survey methods for preprocessing data natural...