And we use Twitter as a tool not just for breaking news, but also to evaluate the sentiment of consumers about a particular product or service.
We randomly choose 20%% of these tweets (preserving the labeling distribution of the whole dataset) as a test set, used for evaluating the trained sentiment models.
In the present article, we suppose that traders determine their positions at each time by observing the market information (and then evaluating the market behavior, market sentiment and their trading strategies), each trader is thought to be a subunit in the stock market, and may take positive (buying) position, negative (selling) position or neutral position, denoted by +, -, and 0, respectively.
The use case view (Fig. 2) illustrates how the developed tool has been utilized for evaluating the quality of Tweet-based sentiment analysis.
A focus of the investigation is evaluating the extent to which good sentiment estimation performance can be achieved even if only relatively few labeled documents are available for training; thus we examine training sets which incorporate a range of numbers of labeled documents: nl = 50, 100, 150, 200, 300, 400, 600, 800, 1000.
The gesture was popularized during meetings in Zuccotti Park, as a way to evaluate the group's sentiment toward an idea, without violating an Occupy principle of deciding most things by consensus, rather than by democratic processes.
General Sentiment's technology evaluates the volume of mentions and sentiment value regarding a brand, company or person.
Users that evaluated the visualization did not trust the sentiment analysis.
In this paper, we evaluate the adoption of Deep Learning for sentiment analysis of financial data.
To evaluate the predictive power of our sentiment model on tweets from the general domain, we tested our model on the official SemEval-2013 tesetset [47] of 3,223 tweets and report the F1 = 0.66 for 3-way classification.
It is still too early to evaluate the potential of such generous sentiments for the future.
