Search results for "sentiment"
showing 4 items of 134 documents
How news affect the trading behavior of different categories of investors in a financial market
2015
We investigate the trading behavior of a large set of single investors trading the highly liquid Nokia stock over the period 2003-2008 with the aim of determining the relative role of endogenous and exogenous factors that may affect their behavior. As endogenous factors we consider returns and volatility, whereas the exogenous factors we use are the total daily number of news and a semantic variable based on a sentiment analysis of news. Linear regression and partial correlation analysis of data show that different categories of investors are differently correlated to these factors. Governmental and non profit organizations are weakly sensitive to news and returns or volatility, and, typica…
Are customer star ratings and sentiments aligned? A deep learning study of the customer service experience in tourism destinations
2023
AbstractThis study explores the consistency between star ratings and sentiments expressed in online reviews and how they relate to the different components of the customer experience. We combine deep learning applied to natural language processing, machine learning and artificial neural networks to identify how the positive and negative components of 20,954 online reviews posted on TripAdvisor about tourism attractions in Venice impact on their overall polarity and star ratings. Our findings showed that sentiment valence is aligned with star ratings. A cancel-out effect operates between the positive and negative sentiments linked to the service experience dimensions in mixed-neutral reviews.
Revista española de drogodependencias
2008
Resumen tomado de la publicación Se ofrece un análisis psicosocial de las dependencias sentimentales o afectivas, las cuales se definen como trastornos relacionales caracterizados por la manifestación de comportamientos adictivos en la relación interpersonal basados en una asimetría de rol y en una actitud dependiente en relación al sujeto del que se depende. Se aporta una clasificación de las mismas, distinguiendo entre las calificadas como dependencias relacionales genuinas (dependencia emocional, adicción al amor y dependencias atípicas), esto es con identidad propia, y las mediatizadas calificadas como coadicciones (codependencia y bidependencia) que se consideran como secundarias a tra…
Korpuslingvistikas pielietojums politiskās ekonomikas tekstu (1841-1850) sentimenta analīzē
2022
Šis pētījums ir veikts aktuālā starptautiskā projekta LEXECON. The Economic Teacher: A transnational and diachronic study of treatises and textbooks of economics (18th to 20th century). Intra- and interlingual corpus-driven and corpus-based analysis with a focus on lexicon and argumentation ietvaros. Pētījuma mērķis ir izpētīt subjektivitāti politiskās ekonomikas tekstos, pielietojot korpuslingvistikas metodi un parādot tās iespējas un ierobežojumus. Pētījumā ir pielietotas sentimenta analīzes un korpuslingvistikas metodes. No pētījuma rezultātiem var secināt, ka konteksta un vārdu pārpalikuma-deficīta analīze ietekmē biežuma datus. Tāpat subjektivitātes līmeņa salīdzinājums ir iespējams st…