Goto

Collaborating Authors

 Discourse & Dialogue


Deal: Master AI and achieve the impossible – 94% off - AndroidPIT

#artificialintelligence

Getting Artificial Intelligence programming knowledge is an excellent way to make you stand out in the workforce. Many even make entire careers out of it. AI programmers are some of the most sought after professionals across many industries all over the world. Now, you can learn AI programming online with the complete machine learning course bundle. You'll learn valuable skills like Quant trading, Hadoop, Object-oriented Java, NLP in Python, Twitter sentiment analysis and so many more.


Ballpark Learning: Estimating Labels from Rough Group Comparisons

arXiv.org Machine Learning

We are interested in estimating individual labels given only coarse, aggregated signal over the data points. In our setting, we receive sets ("bags") of unlabeled instances with constraints on label proportions. We relax the unrealistic assumption of known label proportions, made in previous work; instead, we assume only to have upper and lower bounds, and constraints on bag differences. We motivate the problem, propose an intuitive formulation and algorithm, and apply our methods to real-world scenarios. Across several domains, we show how using only proportion constraints and no labeled examples, we can achieve surprisingly high accuracy. In particular, we demonstrate how to predict income level using rough stereotypes and how to perform sentiment analysis using very little information. We also apply our method to guide exploratory analysis, recovering geographical differences in twitter dialect.


How Sentiment Analysis Helps Brands Sell - eMarketer

#artificialintelligence

Sentiment analysis is already an important component of many brands' social media strategies, but it can often be limited to basic interpretations of whether a conversation is positive, negative or neutral. At the Cannes Lions international advertising festival in June, data visualization technology provider Buzz Radar conducted an experiment that took sentiment analysis further, diving deeper into different types of emotional nuances. Patrick Charlton, director and co-founder of Buzz Radar, spoke to eMarketer's Maria Minsker just before the festival about what the company hoped to learn from the project. Patrick Charlton: Burberry has used our Command Center platform to look at conversations on social media surrounding their campaigns. We pull in every single mention of Burberry from conversations about London Fashion Week, for example, and analyze the sentiment.



Sentiment Analysis on Social Network Data (Twitter, Facebook, etc.)

#artificialintelligence

Sentiment analysis is a useful service for just about any business. It is always valuable to know whether your customers are saying positive or negative things about you. This gives you more flexibility to start with their sample and then tweak it to your needs. Then you would deploy it yourself and call it yourself.


AI, Machine Learning and Sentiment Analysis Applied to Finance – Millennium Gloucester Hotel

#artificialintelligence

AI and Machine Learning have emerged as a central aspect of analytics which is applied to multiple domains. AI and Machine Learning, Pattern classifiers and natural language processing (NLP) underpin Sentiment Analysis (SA); SA is a technology that makes rapid assessment of the sentiments expressed in news releases as well as other media sources such as Twitter and blogs. This conference addresses and explains how to extract sentiment from these multiple sources of information and showcases the advances that have taken place in the field of financial innovation. This conference builds on the findings of the six previous highly-regarded conferences on this topic. It highlights the recent developments in the application of AI and machine learning to trading strategies including automatic and algorithmic trading, quantitative fund management.


Gigaom Tech Goes Emo

#artificialintelligence

Emotion isn't a new frontier in business, of course; sentiment analysis and emotional branding have been in practice long before they were formalized. Focus groups date at least as far back as World War II and Mad Men fans will likely recall Draper's tryst with consumer-research (and consultant Faye Miller…) And, of course, as the 20th century progressed, technology joined customer insight's analog tool sets. But it's only more recently that tech-powered emotional analytics have really stepped into the spotlight.


Sarcasm Is Hard to Discern on Social Media

#artificialintelligence

Sarcasm is difficult to detect online, whether as a user or as an algorithm. Sentiment analysis can help, but there are limits to its effectiveness. An article from cloud-based social intelligence agency Infegy examines the problems resulting from the use of sarcasm online and offers solutions for more accurately identifying and dealing with sarcasm.


Spectral decomposition method of dialog state tracking via collective matrix factorization

arXiv.org Machine Learning

The task of dialog management is commonly decomposed into two sequential subtasks: dialog state tracking and dialog policy learning. In an end-to-end dialog system, the aim of dialog state tracking is to accurately estimate the true dialog state from noisy observations produced by the speech recognition and the natural language understanding modules. The state tracking task is primarily meant to support a dialog policy. From a probabilistic perspective, this is achieved by maintaining a posterior distribution over hidden dialog states composed of a set of context dependent variables. Once a dialog policy is learned, it strives to select an optimal dialog act given the estimated dialog state and a defined reward function. This paper introduces a novel method of dialog state tracking based on a bilinear algebric decomposition model that provides an efficient inference schema through collective matrix factorization. We evaluate the proposed approach on the second Dialog State Tracking Challenge (DSTC-2) dataset and we show that the proposed tracker gives encouraging results compared to the state-of-the-art trackers that participated in this standard benchmark. Finally, we show that the prediction schema is computationally efficient in comparison to the previous approaches.


Machine Learning meets Data-Driven Journalism: Boosting International Understanding and Transparency in News Coverage

arXiv.org Machine Learning

Migration crisis, climate change or tax havens: Global challenges need global solutions. But agreeing on a joint approach is difficult without a common ground for discussion. Public spheres are highly segmented because news are mainly produced and received on a national level. Gain- ing a global view on international debates about important issues is hindered by the enormous quantity of news and by language barriers. Media analysis usually focuses only on qualitative re- search. In this position statement, we argue that it is imperative to pool methods from machine learning, journalism studies and statistics to help bridging the segmented data of the international public sphere, using the Transatlantic Trade and Investment Partnership (TTIP) as a case study.