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 Personal Assistant Systems


Sifa

AAAI Conferences

Players of digital games face numerous choices as to what kind of games to play and what kind of game content or in-game activities to opt for. Among these, game content plays an important role in keeping players engaged so as to increase revenues for the gaming industry. However, while nowadays a lot of game content is generated using procedural content generation, automatically determining the kind of content that suits players' skills still poses challenges to game developers. Addressing this challenge, we present matrix- and tensor factorization based game content recommender systems for recommending quests in a single player role-playing game. We discuss the theory behind latent factor models for recommender systems and derive an algorithm for tensor factorizations to decompose collections of bipartite matrices. Extensive online bucket type tests reveal that our novel recommender system retained more players and recommended more engaging quests than handcrafted content-based and previous collaborative filtering approaches.


Tinder will stop charging older users more for premium features

Engadget

Tinder says it will no longer charge older users more to use Tinder, following a new report questioning the dating app's practice of charging older users "substantially more." The report, from Mozilla and Consumers International, detailed just how much Tinder pricing can vary based on users' age. The report relied on "mystery shoppers" in six countries -- the United States, the Netherlands, New Zealand, Korea, India and Brazil -- who signed up for Tinder and reported back how much the app charged for the subscription. According to the report, Tinder users between the ages of 30 and 49 were charged an average of 65.3 percent more than their younger counterparts in every country except Brazil. Tinder's age-based pricing for Tinder, which gives users access to premium features like unlimited likes, has long been a source of controversy for the dating app.


Using a Language Model in a Kiosk Recommender System at Fast-Food Restaurants

arXiv.org Artificial Intelligence

Kiosks are a popular self-service option in many fast-food restaurants, they save time for the visitors and save labor for the fast-food chains. In this paper, we propose an effective design of a kiosk shopping cart recommender system that combines a language model as a vectorizer and a neural network-based classifier. The model performs better than other models in offline tests and exhibits performance comparable to the best models in A/B/C tests.


MetaKG: Meta-learning on Knowledge Graph for Cold-start Recommendation

arXiv.org Artificial Intelligence

A knowledge graph (KG) consists of a set of interconnected typed entities and their attributes. Recently, KGs are popularly used as the auxiliary information to enable more accurate, explainable, and diverse user preference recommendations. Specifically, existing KG-based recommendation methods target modeling high-order relations/dependencies from long connectivity user-item interactions hidden in KG. However, most of them ignore the cold-start problems (i.e., user cold-start and item cold-start) of recommendation analytics, which restricts their performance in scenarios when involving new users or new items. Inspired by the success of meta-learning on scarce training samples, we propose a novel meta-learning based framework called MetaKG, which encompasses a collaborative-aware meta learner and a knowledge-aware meta learner, to capture meta users' preference and entities' knowledge for cold-start recommendations. The collaborative-aware meta learner aims to locally aggregate user preferences for each user preference learning task. In contrast, the knowledge-aware meta learner is to globally generalize knowledge representation across different user preference learning tasks. Guided by two meta learners, MetaKG can effectively capture the high-order collaborative relations and semantic representations, which could be easily adapted to cold-start scenarios. Besides, we devise a novel adaptive task scheduler which can adaptively select the informative tasks for meta learning in order to prevent the model from being corrupted by noisy tasks. Extensive experiments on various cold-start scenarios using three real data sets demonstrate that our presented MetaKG outperforms all the existing state-of-the-art competitors in terms of effectiveness, efficiency, and scalability.


The 5 Technologies That Will Change The Future Of The Human Race

#artificialintelligence

In my book, Tech Trends in Practice, I talk about a lot of technology trends that are already moving out of the R&D departments and into everyday life, but the following five I think will have the most profound impacts on our society and the human race as a whole. Artificial intelligence, or AI, and machine learning refer to the ability of machines to learn and act intelligently, meaning they can make decisions, carry out tasks, and even predict future outcomes based on what they learn from data. AI and machine learning already play a bigger role in everyday life than you might imagine. Alexa, Siri, Amazon's product recommendations, Netflix's and Spotify's personalized recommendations, every Google search you make, security checks for fraudulent credit card purchases, dating apps, fitness trackers... All are driven by AI.


Artificial Intelligence in Digital Marketing - Gold Edition

#artificialintelligence

Welcome to experience "Artificial Intelligence in Digital Marketing - Gold Edition 2022." Artificial Intelligence has transformed the virtual panorama, inclusive of Google's RankBrain personalising suggestions by Amazon. Artificial Intelligence (AI) is hastily turning into important in the daily happenings of the virtual global, with marketing and advertising and marketing being no exception. The idea of AI may also bring to thoughts 60's sci-fi with futuristic robots, however, it's definitely approximately so much greater. With the right understanding and evaluation of data and input, AI is playing an essential position in figuring out marketing trends. Brands and marketers are incorporating Machine Learning and Artificial Intelligence to save time and assets.


Bayesian Linear Bandits for Large-Scale Recommender Systems

arXiv.org Machine Learning

--Potentially, taking advantage of available side information boosts the performance of recommender systems; nevertheless, with the rise of big data, the side information has often several dimensions. Hence, it is imperative to develop decision-making algorithms that can cope with such a high-dimensional context in real-time. That is especially challenging when the decision-maker has a variety of items to recommend. In this paper, we build upon the linear contextual multi-armed bandit framework to address this problem. We develop a decision-making policy for a linear bandit problem with high-dimensional context vectors and several arms. Our policy employs Thompson sampling and feeds it with reduced context vectors, where the dimensionality reduction follows by random projection. Our proposed recommender system follows this policy to learn online the item preferences of users while keeping its runtime as low as possible. We prove a regret bound that scales as a factor of the reduced dimension instead of the original one. For numerical evaluation, we use our algorithm to build a recommender system and apply it to real-world datasets. The theoretical and numerical results demonstrate the effectiveness of our proposed algorithm compared to the state-of-the-art in terms of computational complexity and regret performance. Over the past decade, recommender systems have flourished to improve the economy by guiding decision-makers in different roles such as service providers, consumers, and producers, toward cost-effective and time-saving actions while retaining the constraints such as safety, privacy, and quality-of-service satisfaction.


Conversational Agents: Theory and Applications

arXiv.org Artificial Intelligence

In this chapter, we provide a review of conversational agents (CAs), discussing chatbots, intended for casual conversation with a user, as well as task-oriented agents that generally engage in discussions intended to reach one or several specific goals, often (but not always) within a specific domain. We also consider the concept of embodied conversational agents, briefly reviewing aspects such as character animation and speech processing. The many different approaches for representing dialogue in CAs are discussed in some detail, along with methods for evaluating such agents, emphasizing the important topics of accountability and interpretability. A brief historical overview is given, followed by an extensive overview of various applications, especially in the fields of health and education. We end the chapter by discussing benefits and potential risks regarding the societal impact of current and future CA technology.


Measuring and Reducing Model Update Regression in Structured Prediction for NLP

arXiv.org Artificial Intelligence

Recent advance in deep learning has led to rapid adoption of machine learning based NLP models in a wide range of applications. Despite the continuous gain in accuracy, backward compatibility is also an important aspect for industrial applications, yet it received little research attention. Backward compatibility requires that the new model does not regress on cases that were correctly handled by its predecessor. This work studies model update regression in structured prediction tasks. We choose syntactic dependency parsing and conversational semantic parsing as representative examples of structured prediction tasks in NLP. First, we measure and analyze model update regression in different model update settings. Next, we explore and benchmark existing techniques for reducing model update regression including model ensemble and knowledge distillation. We further propose a simple and effective method, Backward-Congruent Re-ranking (BCR), by taking into account the characteristics of structured output. Experiments show that BCR can better mitigate model update regression than model ensemble and knowledge distillation approaches.


Blake Shelton invites 6-year-old awaiting heart transplant on stage: 'It just warmed my heart'

FOX News

The country singer invited Wyatt McKee, an avid fan, to sing a duet with him during his concert last month as he continues to wait for a new heart. A 6-year-old awaiting a heart transplant had his dreams fulfilled last month when Blake Shelton invited him on stage to sing a duet during his concert. The avid fan and Shelton's miniature duet partner, Wyatt McKee, and his mother Harley McKee, joined "Fox & Friends Weekend" to recount the emotional rendition of one of Shelton's top hits, "God's Country." "I can't even explain how it made me feel," Harley explained Sunday. "I don't think he quite grasped how big it was. He just had a blast, and that's what he wanted to do. He always tells us he wants Blake Shelton's phone number, so he would ask Siri all the time."