The Multilingual Amazon Reviews Corpus

By Phillip Keung, Yichao Lu, Gyorgy Szarvas, Noah Smith
2020
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Abstract
We present the Multilingual Amazon Reviews Corpus (MARC), a large-scale collection of Amazon reviews for multilingual text classification. The corpus contains reviews in English, Japanese, German, French, Spanish, and Chinese, which were collected between 2015 and 2019. Each record in the dataset contains the review text, the review title, the star rating, an anonymized reviewer ID, an anonymized product ID, and the coarse-grained product category (e.g., ‘books’, ‘appliances’, etc.) The corpus is balanced across the 5 possible star ratings, so each rating constitutes 20% of the reviews in each language. For each language, there are 200,000, 5,000, and 5,000 reviews in the training, development, and test sets, respectively. We report baseline results for supervised text classification and zero-shot crosslingual transfer learning by fine-tuning a multilingual BERT model on reviews data. We propose the use of mean absolute error (MAE) instead of classification accuracy for this task, since MAE accounts for the ordinal nature of the ratings.
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US, WA, Seattle
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US, WA, Seattle
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DE, BE, Berlin
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US, CA, Cupertino
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US, WA, Seattle
Amazon is focused on protecting the health and safety of our employees while continuing to serve people who need our services more than ever. Regular testing on a global scale across all industries would both help keep people safe and help get the economy back up and running. But, for this to work, we as a society would need vastly more testing capacity than is currently available. Unfortunately, today we live in a world of scarcity where COVID-19 testing is heavily rationed. Until we have an effective vaccine available in billions of doses, high-volume testing capacity would be of great help, but getting that done will take collective action by NGOs, companies, and governments.For our part, Amazon has begun the work of building incremental testing capacity.Key Responsibilities:· Perform all laboratory testing in a high complexity analytical/clinical laboratory covering all levels of complexity necessary for validation of potential diagnostics testing.· Be responsible for reviewing and releasing laboratory testing performed by laboratory technicians and reporting results in a timely and accurate manner· Oversee testing by medical laboratory technicians and specimen management· Analyze clinical laboratory specimens following the standard methods and procedures.· Ensure equipment and instruments remain in good operating condition, recognize any malfunctions and troubleshoot as needed· Verify, perform, process, and analyze specialized laboratory specimens consistent with laboratory procedural requirements with accuracy and efficiency and report test results· Perform tests under the direct supervision of the laboratory lead· Perform quality control procedures to ensure accuracy of clinical data (if applicable)· Maintain updated understanding and knowledge of methods performed in the lab· Act as go-to person when lab lead is not available· Train others on specialized instructions for instruments/protocols (super users)· Identify and escalate equipment malfunctions; troubleshoot common errors· Recognize, document, and escalate protocol deviations in lab to lead/supervisor· Participate in the updating of departmental standard operating procedures and database to accurately reflect the current practice.· Maintain equipment and instruments in good operating condition
US, CA, Cupertino
Are you passionate about applying formal verification, program analysis, constraint-solving, and theorem proving to real world problems? Do you want to create products that help customers? If so, then we have an exciting opportunity for you. In this role, you will interact with internal teams and external customers to understand their requirements. You will apply your knowledge to propose innovative solutions, create software prototypes, and productize prototypes into production systems using software development tools and methodologies. In addition, you will support and scale your solutions to meet the ever growing demand of customer use.Technical Responsibilities:- Interact with various teams to develop an understanding of their security and safety requirements.- Apply the acquired knowledge to build tools find problems, or show the absence of security/safety problems.- Implement these tools through the use of SAT, SMT, BDDs, and various concepts from programming languages, theorem proving, formal verification and constraint solving.- Perform analysis of the customer systems using tools developed in-house or externally provided- Create software prototypes to verify and validate the devised solutions methodologies; integrate the prototypes into production systems using standard software development tools and methodologies.Leadership Responsibilities:- Can present and defend company-wide technical decisions to the internal technical community and represent the company effectively at technical conferences.- Functional thought leader, sought after for key tech decisions. Can successfully sell ideas to an executive level decision maker.- Mentors and trains the research scientist community on complex technical issues.Amazon is committed to a diverse and inclusive workplace. Amazon is an equal opportunity employer and does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status. For individuals with disabilities who would like to request an accommodation, please visit https://www.amazon.jobs/en/disability/us