Lesson Learned

5 lessons learned from making a banking chatbot


However, I believe that the real power of conversational interfaces will be when people feel free to communicate any broad need. On the technology side, I am building a smarter engagement engine and focusing on the customer journey (more details for this will come in a future post.) Based on knowing a few things about each user (account age, usage activity, engagement, basic demographics), this algorithm would determine the right message and the right time to send it and would also learn based on the response/feedback from the user. I'm continually trying to improve Teller, including building features like bank account integration, adding new messaging channels, and operationalizing deployments.

Large Scale Decision Forests: Lessons Learned - Sift Science Engineering Blog


The way we handle sparse feature for our logistic regression model turns every sparse feature into tens of indicator features, which results in a feature vector with several thousand features. Training time isn't affected since the sufficient statistics required to compute split impurities given this third branch are already collected as part of our regular training algorithm. Effectively, we realized that increasing width led to improved variance, while increasing max depth led to improved bias. Effectively, we realized that increasing width led to improved variance, while increasing max depth led to improved bias.

Lessons Learned from Deploying Deep Learning at Scale


Deep learning is a machine learning technique used to solve complex problems related to image recognition, natural language processing, and more. However, deploying deep learning models in the cloud can be challenging due to complex hardware requirements and software dependencies. And, more importantly, once you've picked a framework and trained a machine-learning model to solve your problem, how to reliably deploy deep learning frameworks at scale. We've created an open marketplace for algorithms and algorithm development, making state-of-the-art algorithms accessible and discoverable by everyone.

Shifting from Big Data to Machine Learning: Lessons Learned


Arvid Tchivzhel, Director of Product Development, Mather Economics, Arvid Tchivzhel, a director with Mather Economics oversees the delivery and operations for all Mather Economics consulting engagements, along wit... Before plunging into the world of machine learning, firms should pause and learn from the mistakes made in the implementation of Big Data projects over the last five years. History can be our guide Big Data projects returned 55 cents for every dollar spent, and the three primary reasons for an underwhelming ROI is lack of skilled practitioners and immature technology and a lack of compelling business cases. The role of a data scientist includes technical proficiency to manipulate data using SQL, noSQL and ETL tools, broad knowledge of statistical techniques and predictive modeling (the core of machine learning), plus softer skills to visualize and present the data and output.

Download Machine Learning White Paper: Practical Lessons Learned from the 1M Netflix Prize


Netflix spent 1 million for a machine learning and data mining competition called Netflix Prize to improve movie recommendations by crowdsourced solutions, but couldn't use the winning solution for their production system in the end. This white paper takes a closer look at the real-life issues Netflix faced and highlights key considerations when developing production machine learning systems.

Lessons Learned While Developing Machine Learning Products


So think about how to build the whole product with the following in mind: Is the data that's coming out of this product going to be good training data? That, I think, is something that should always be on the table. Some examples of how to do it right would be giving users opportunities to correct errors when they occur, and making sure that it's done in the flow of the product. It should be presented in a way that the user feels like it's going to provide value, because they are helping to fix the product and helping to improve it for their own benefit.

Large Scale Decision Forests: Lessons Learned


To do this, we have devised a specialized modeling stack that is able to adapt to individual customers while simultaneously delivering a great out-of-box experience for new customers, achieved by mixing the output from a "global" model – trained on our entire network of data – with the output from a customer's individualized model. We wanted our global model to be expressive enough to easily model non-linearities in our feature space, but we also needed to retain the ability to explain our global model's predictions to our customers in a straightforward manner. Fast forward several months and 100 experiments later, we now have a global decision forest model working as a productive member of our modeling stack. The way we handle sparse feature for our logistic regression model turns every sparse feature into tens of indicator features, which results in a feature vector with several thousand features.

Lesson learned from Amazon Echo: Don't make customers into developers


Amazon releases Smart Home API for Alexa: Developers, get ready to add'skills' Amazon's Alexa line of products will soon get new home automation skills thanks to the release of an API by the company. Ideally, you should be able to say something along the lines of "Alexa, bedtime" and it should loop a designated playlist or white noise track that you can pick from a pre-populated list within the Amazon Alexa smartphone app or preview using a voice command. There seems to be a trend with IoT to want to make your end-users into your core developer ecosystem. Amazon Alexa clearly needs some kind of click-and-choose macro interface similar to IFTTT that allows similar types of function recipes, such as my "Bedtime" command to be executed.

10 More lessons learned from building real-life Machine Learning systems -- Part I


The present two-part blog post includes new lessons not only learned directly at Quora but also from talking to many people at different companies. We'll take box office as an implicit measure of people "preferring" a film enough to decide to go and watch it. You can actually combine different forms of implicit and explicit data in your ML models to account for short-term engagement but also for long-term retention. As for the final metric, we can use any ranking metric (or better, the ranking metric that we have measured better correlates to AB test metrics).

Competitive Benchmarking: Lessons Learned from the Trading Agent Competition

AI Magazine

Over the years, competitions have been important catalysts for progress in artificial intelligence. We describe the goal of the overall Trading Agent Competition and highlight particular competitions. We discuss its significance in the context of today's global market economy as well as AI research, the ways in which it breaks away from limiting assumptions made in prior work, and some of the advances it has engendered over the past ten years. Since its introduction in 2000, TAC has attracted more than 350 entries and brought together researchers from AI and beyond.