South America
Transfer Learning Toolkit: Primers and Benchmarks
Zhuang, Fuzhen, Duan, Keyu, Guo, Tongjia, Zhu, Yongchun, Xi, Dongbo, Qi, Zhiyuan, He, Qing
The transfer learning toolkit wraps the codes of 17 transfer learn ing models and provides integrated interfaces, allowing users to use those models by calling a simple function. It is easy for primary researchers to use this toolkit and to choose proper models for real-world applica tions. The toolkit is written in Python and distributed under MIT open source license. In this pape r, the current state of this toolkit is described and the necessary environment setting and usage are in troduced. Keywords: Transfer Learning, Toolkit 1. Introduction Transfer learning is a promising and important direction in machine lear ning, which attempts to leverage the knowledge contained in a source domain to improve the le arning performance or minimize the number of labeled samples required in a target domain.
CAT: CRF-based ASR Toolkit
An, Keyu, Xiang, Hongyu, Ou, Zhijian
ABSTRACT In this paper, we present a new open source toolkit for automatic speech recognition (ASR), named CA T (CRF-based ASR Toolkit). A key feature of CA T is discriminative training in the framework of conditional random field (CRF), particularly with connectionist temporal classification (CTC) inspired state topology. CA T contains a full-fledged implementation of CTC-CRF and provides a complete workflow for CRF-based end-to-end speech recognition. Evaluation results on Chinese and English benchmarks such as Switchboard and Aishell show that CA T obtains the state-of-the-art results among existing end-to-end models with less parameters, and is competitive compared with the hybrid DNN-HMM models. Towards flexibility, we show that i-vector based speaker-adapted recognition and latency control mechanism can be explored easily and effectively in CA T. We hope CA T, especially the CRF-based framework and software, will be of broad interest to the community, and can be further explored and improved. Index T erms-- speech recognition, open source toolkit, conditional random field, end-to-end 1. INTRODUCTION In addition to theories and algorithms, open source toolkits make substantial contributions to automatic speech recognition (ASR) technologies.
LionForests: Local Interpretation of Random Forests through Path Selection
Mollas, Ioannis, Tsoumakas, Grigorios, Bassiliades, Nick
Towards a future where machine learning systems will integrate into every aspect of people's lives, researching methods to interpret such systems is necessary, instead of focusing exclusively on enhancing their performance. Enriching the trust between these systems and people will accelerate this integration process. Many medical and retail banking/finance applications use state-of-the-art machine learning techniques to predict certain aspects of new instances. Tree ensembles, like random forests, are widely acceptable solutions on these tasks, while at the same time they are avoided due to their black-box uninterpretable nature, creating an unreasonable paradox. In this paper, we provide a sequence of actions for shedding light on the predictions of the misjudged family of tree ensemble algorithms. Using classic unsupervised learning techniques and an enhanced similarity metric, to wander among transparent trees inside a forest following breadcrumbs, the interpretable essence of tree ensembles arises. An explanation provided by these systems using our approach, which we call "LionForests", can be a simple, comprehensive rule.
On First-Order Model-Based Reasoning
Bonacina, Maria Paola, Furbach, Ulrich, Sofronie-Stokkermans, Viorica
Reasoning semantically in first-order logic is notoriously a challenge. This paper surveys a selection of semantically-guided or model-based methods that aim at meeting aspects of this challenge. For first-order logic we touch upon resolution-based methods, tableaux-based methods, DPLL-inspired methods, and we give a preview of a new method called SGGS, for Semantically-Guided Goal-Sensitive reasoning. For first-order theories we highlight hierarchical and locality-based methods, concluding with the recent Model-Constructing satisfiability calculus.
Students push to speed up artificial intelligence adoption in Latin America
Omar Costilla Reyes reels off all the ways that artificial intelligence might benefit his native Mexico. It could raise living standards, he says, lower health care costs, improve literacy and promote greater transparency and accountability in government. But Mexico, like many of its Latin American neighbors, has failed to invest as heavily in AI as other developing countries. That worries Costilla Reyes, a postdoc at MIT's Department of Brain and Cognitive Sciences. To give the region a nudge, Costilla Reyes and three other MIT graduate students -- Guillermo Bernal, Emilia Simison and Pedro Colon-Hernandez -- have spent the last six months putting together a three-day event that will bring together policymakers and AI researchers in Latin America with AI researchers in the United States. The AI Latin American sumMIT will take place in January at the MIT Media Lab.
Video games' big night gets its nominee list for The Game Awards
"Death Stranding" earned the most nominations in the Game Awards, which will be given out Dec. 12 in Los Angeles. The new game from famed designer Hideo Kojima ("Metal Gear Solid") collected nine nominations, including Game of the Year, Best Action/Adventure Game, Best Game Direction, Best Art Direction and Best Score. Actors Norman Reedus and Mads Mikkelsen, who portray Sam Porter Bridges and Cliff, respectively, in the PlayStation 4 game, earned nominations for Best Performance. They were joined by Ashly Burch as Parvati Holcomb in "The Outer Worlds," Courtney Hope as Jesse Faden in "Control," Laura Bailey as Kait Diaz in "Gears 5" and Matthew Porretta as Dr. Casper Darling in "Control." Considered the Oscars of the video game industry, the Game Awards began in 2014, established by longtime video game journalist Geoff Keighley.
Researchers uncover 143 previously hidden and unknown figures drawn in the desert soil in Peru
The Nazca lines of Peru have fascinated archaeologists for centuries and now scientists say they have discovered 143 new drawings previously hidden in the soil. Featuring hundreds of pictures of animals, plants and patterns, the miles of figurative drawings are only visible from nearby clifftops and the air. Researchers from Yamagata University in Japan spent years searching through high-resolution images of the lines taken from space and studying them on site in Peru. This led to the discovery of previously unknown figures depicting a range of living creatures including birds, monkeys, fish, reptiles and humanoid characters. Researchers worked with IBM's Artificial Intelligence team to discover a humanoid character within the soil (pictured) Known as geoglyphs, they were created about 2,000 years ago, at the same time as the previously discovered lines and are between 16ft and 320ft across.
School of Law Board of Governors' Eileen Lach - Trailblazer, Thought Leader, Giver St. Thomas Newsroom
Throughout her life, Eileen Lach has been a leader. Growing up in northeast Minneapolis, she knew at a young age she wanted to move to New York City and travel the world. Lach accomplished that and more, carving out a position on Wall Street early in her career and later serving as the first general counsel and chief compliance officer for The Institute of Electrical and Electronics Engineers (IEEE). She is considered a thought leader, especially in the area of ethics and artificial intelligence (AI). During a conversation with Lach last summer, it was hard not to be wowed by her achievements and admire her dedication to philanthropic causes.
Artificial Intelligence (AI) in Retail Market worth $15.3 billion by 2025 - Exclusive Report by Meticulous Research
Geographically, the global artificial intelligence in retail market is segmented into five major regions, namely, North America, Europe, Asia Pacific, Latin America, and the Middle East and Africa. The global AI in retail market is analyzed methodically with respect to major countries in each of the regions with the help of bottom-up approach to arrive at the most precise market estimation. At present, North America holds a dominating position in the global AI in retail market. The region has high technology adoption rate, presence of key players & start-ups, and high penetration of internet. Consequently, North America is expected to retain its dominance throughout the forecast period.
Scientists used artificial intelligence to discover a 2,000 year-old stick figure in Peru's mysterious Nazca Lines
Artificial intelligence has helped archaeologists uncover an ancient lost work of art. The Nazca Lines in Peru are ancient geoglyphs, images carved into the landscape. First formally studied in 1926, they depict people, animals, plants, and geometric shapes. The formations vary in size, with some of the biggest running up to 30 miles long. Their exact purpose is unknown, although some archaeologists think they may have had religious or spiritual significance.