Sökning: "information cascades"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden information cascades.

  1. 1. Volatility & The Black Swan : Investigation of Univariate ARCH-models, HARRV and Implied Volatility in Nasdaq100 amid Covid19

    Master-uppsats, Uppsala universitet/Nationalekonomiska institutionen

    Författare :Karl Tingstedt; [2022]
    Nyckelord :SV; ARCH; GARCH; TARCH; EGARCH; HARRV; IV; RV; Integrated Volatility; TINA;

    Sammanfattning : Covid19 hit the world’s financial markets by surprise in March 2020 and ensuing volatility marked an end to the prior low-volatility environment. This Black Swan engendered numerous publications establishing how the equity market responded to the exogenous shock. LÄS MER

  3. 2. Comparing and contrasting the dissemination cascades of different topics in a social network : What are the lifetimes of different topics and how do they spread

    Kandidat-uppsats, Linköpings universitet/Institutionen för datavetenskap

    Författare :Linus Käll; Simon Pertoft; [2021]
    Nyckelord :spreading; dissemination; topics; topic; modeling; modelling; lda; fake; false; news; social; network;

    Sammanfattning : The web has granted everyone the opportunity to freely share large amounts of data. Individuals, corporations, and communities have made the web an important tool in their arsenal. These entities are spreading information online, but not all of it is constructive. LÄS MER

  4. 3. Propagation of traditional media publications in social media : A network analysis approach

    Kandidat-uppsats, Högskolan Dalarna/Informatik

    Författare :Tova Eriksson Asp; [2018]
    Nyckelord :social media; network analysis; traditional media; webometrics; hyperlink analysis; information cascades; cross-platform research;

    Sammanfattning : Social media is a vast, fluctuant domain that is difficult to grasp, overlook and explain. It is important in our daily lives as well as for organisations, such as traditional media. Traditional media is moving from analogue news propagation to propagating news online, where social media plays a significant role. LÄS MER

  5. 4. Disentangling risk in a multi-predator landscape : roe deer respond to differing patterns of risk to lynx, wolves and humans through shifts in their habitat selection

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Andrew Lewis; [2015]
    Nyckelord :Canis lupus; Capreolus capreolus; indirect effects; landscape of fear; Lynx lynx; multi-predator systems; predation risk; Scandinavia; spatial risk patterns; ungulates;

    Sammanfattning : Predation risk is known to evoke behavioural responses in prey animals, and prey are often faced with a trade-off between lowering their risk to predation and acquiring resources. This situation becomes more complex in a multi-predator landscape, especially if those predators employ different hunting strategies, and induce different spatial patterns of risk. LÄS MER

  7. 5. Larmhantering i processindustrin

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Björn Stenquist; [2010]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The objective of this thesis is to reduce the alarms in the control rooms of the processing industry and to investigate a strategy for working with the alarms. The problem with the alarms in the automation system is a result of the highly automated production and failure to design the alarms for the operator. LÄS MER