Deep Learning
Zero-shot Multi-Domain Dialog State Tracking Using Descriptive Rules
Altszyler, Edgar, Brusco, Pablo, Basiou, Nikoletta, Byrnes, John, Vergyri, Dimitra
In this work, we present a framework for incorporating descriptive logical rules in state-of-the-art neural networks, enabling them to learn how to handle unseen labels without the introduction of any new training data. The rules are integrated into existing networks without modifying their architecture, through an additional term in the network's loss function that penalizes states of the network that do not obey the designed rules. As a case of study, the framework is applied to an existing neural-based Dialog State Tracker. Our experiments demonstrate that the inclusion of logical rules allows the prediction of unseen labels, without deteriorating the predictive capacity of the original system.
Fast and Accurate Sequence Labeling with Approximate Inference Network
Wang, Xinyu, Jiang, Yong, Bach, Nguyen, Wang, Tao, Huang, Zhongqiang, Huang, Fei, Tu, Kewei
The linear-chain Conditional Random Field (CRF) model is one of the most widely-used neural sequence labeling approaches. Exact probabilistic inference algorithms such as the forward-backward and Viterbi algorithms are typically applied in training and prediction stages of the CRF model. However, these algorithms require sequential computation that makes parallelization impossible. In this paper, we propose to employ a parallelizable approximate variational inference algorithm for the CRF model. Based on this algorithm, we design an approximate inference network that can be connected with the encoder of the neural CRF model to form an end-to-end network, which is amenable to parallelization for faster training and prediction. The empirical results show that our proposed approaches achieve a 12.7-fold improvement in decoding speed with long sentences and a competitive accuracy compared with the traditional CRF approach.
Data Scientist, Machine Learning & AI - IoT BigData Jobs
Etsy is committed to advancing the fields related to E-commerce related fields by building technologies that help Etsy buyers and sellers discover and celebrate handmade goods from all over the world. We are seeking individuals passionate in areas such as Machine Learning, Data Mining, Recommender Systems, Information Retrieval, Natural Language Processing, Computational Advertising, Deep Learning and Computer Vision. Our data scientists have the opportunity to make core algorithmic advances and apply their ideas in the dynamic world of E-commerce in strengthening Etsy’s global marketplace. Data scientists can publish their innovations at top tier conferences such as KDD, NIPS, ICML, ICLR, CVPR, ICCV, WWW, WSDM, SIGIR and etc. This position would be based in Brooklyn, New York. What We’re Working On Recommendation and Personalization Natural Language Processing and Query Understanding Deep Learning Image Processing and Understanding Text Understanding Learning to Ranking for Search and Ads Fraud and Abuse Detection Large-scale Machine Learning Who You Are You share our values (below) and are looking for a company that has a solid mission. You have strong analytical and quantitative skills. You are familiar with techniques in Machine Learning, Data Mining, Recommender Systems, Information Retrieval, Natural Language Processing, Computational Advertising, Deep Learning and Computer Vision or related fields. You have a Ph.D. degree in Machine Learning, Data Mining, Recommender Systems, Information Retrieval, Natural Language Processing, Computational Advertising, Deep Learning and Computer Vision or related fields. You have strong technical and programming skills. You are familiar with relevant technologies and languages (e.g. Python, Java, C++ and etc.). You have experience in or desire to learn Hadoop/Spark related Big Data technologies. You have demonstrated the capability to review and write technical papers. You can contribute to research that can be applied to Etsy product s. You have the ability to quickly prototype ideas and solve complex problems by adapting creative approaches. You are a strong collaborator and communicator and you make the engineers around you grow and learn. What we care about Curiosity and humility. We are dedicated to learning and constantly improving. We hope you also value things like blameless postmortems and have a natural drive to figure out how everything works. Keeping it real. Etsy’s mission and values are a part of everything we do. We care about how our work affects real people in the community and enjoy opportunities to meet them. We are motivated by this mission every day. What's Next If you're interested in joining the team at Etsy, please send a cover letter along with your CV/Resume. Tell us more about your background and why you're interested in using machine learning and AI at Etsy! Feel free to point us to your latest publication and any other online presence you may have including Github, Weblogs and others.
A Closer Look at the Generalization Gap in Large Batch Training of Neural Networks
Deep learning architectures such as recurrent neural networks and convolutional neural networks have seen many significant improvements and have been applied in the fields of computer vision, speech recognition, natural language processing, audio recognition and more. The most commonly used optimization method for training highly complex and non-convex DNNs is stochastic gradient descent (SGD) or some variant of it. DNNs however typically have some non-convex objective functions which are a bit difficult optimize with SGD. Thus, SGD, at best, finds a local minimum of this objective function. Although the solutions of DNNs are a local minima, they have produced great end results.
Deep Dive into Machine Learning Models for Protein Engineering
Protein redesign and engineering has become an important task in pharmaceutical research and development. Recent advances in technology have enabled efficient protein redesign by mimicking natural evolutionary mutation, selection, and amplification steps in the laboratory environment. For any given protein, the number of possible mutations is astronomical. It is impractical to synthesize all sequences or even to investigate all functionally interesting variants. Recently, there has been an increased interest in using machine learning to assist protein redesign, since prediction models can be used to virtually screen a large number of novel sequences. However, many state-of-the-art machine learning models, especially deep learning models, have not been extensively explored.
AI Is Making Our Lives Better In Weird And Wonderful Ways, Here's How
When some people hear the term'artificial intelligence' their initial reaction is to imagine a dystopian future where robots have risen up and overthrown humanity. The truth is, application of AI technology in our day-to-day lives is a lot less sinister. It might not be long before these technologies become common in our everyday lives. It's currently assisting with medical diagnosis, the creation of autonomous cars and to help improve businesses by analysing data and creating accurate forecasts of client or market behaviour. The application of AI is becoming more and more popular in businesses worldwide, with the potential to improve our lives in unexpected ways.
The Mathematics Behind Deep Learning
Deep neural networks (DNNs) are essentially formed by having multiple connected perceptrons, where a perceptron is a single neuron. Think of an artificial neural network (ANN) as a system which contains a set of inputs that are fed along weighted paths. These inputs are then processed, and an output is produced to perform some task. Over time, the ANN'learns', and different paths are developed. Various paths can have different weightings, and paths that are found to be more important (or produce more desirable results) are assigned higher weightings within the model than those which produce fewer desirable results.
A deep learning model achieves super-human performance at Gran Turismo Sport
Over the past few decades, research teams worldwide have developed machine learning and deep learning techniques that can achieve human-comparable performance on a variety of tasks. Some of these models were also trained to play renowned board or videogames, such as the Ancient Chinese game Go or Atari arcade games, in order to further assess their capabilities and performance. Researchers at University of Zurich and SONY AI Zurich have recently tested the performance of a deep reinforcement learning-based approach that was trained to play Gran Turismo Sport, the renowned car racing video game developed by Polyphony Digital and published by Sony Interactive Entertainment. Their findings, presented in a paper pre-published on arXiv, further highlight the potential of deep learning techniques for controlling cars in simulated environments. "Autonomous driving at high speed is a challenging task that requires generating fast and precise actions even when the vehicle is approaching its physical limits," Yunlong Song, one of the researchers who carried out the study, told TechXplore.