A loss function is used to optimize a machine learning algorithm. An accuracy metric is used to measure the algorithm’s performance (accuracy) in an interpretable way. It goes against my intuition that these two sometimes conflict: loss is getting better while accuracy is getting worse, or vice versa. I’m working on a classification problem and once again …
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I’m working on a text analysis problem and got slightly better results using a CNN than RNN. The CNN is also (much) faster than a recurrent neural net. I wanted to tune it further but had difficulties understanding the Conv1D on the nuts and bolts level. There are multiple great resources explaining 2D convolutions, see …
Machine learning models are only as good as the data you use to train them. AI sexism and racist machines have made the news in 2017. Yesterday, Slava Akhmechet tweeted about his word2vec language model test. According to the tweet, the test was trained on the Google News dataset that contains one billion words from news articles …
I have been studying machine learning and artificial intelligence lately. Then run into this tweet that resonated deeply. 😉 The image is a clever update of XKCD’s original obnoxious physicist.
Restic is an open source backup program. I really like Restic’s design goals, so I chose to try Restic for backing up my computer at home. Restic is still a young project and it was (for me) somewhat difficult to figure out the right way the utilize it. I wrote down my approach – maybe it’ll …
There’s a massively delayed subway construction project in Espoo, Finland. Based on the public info, the project seems to be a mess of mismanagement. In a discussion regarding the project’s management style, a friend of mine quipped: You know these managers telling their team will get this done by pulling a few all-nighters, or that she’ll be able …
Your board of directors is incomplete if you don’t employ a Chief Digital Officer. Right? Coming from tech startups, this sounds odd to me. For us, digitalization is the air we breath. So what do the companies need a CDO for? IIC Partners published a global survey last September. According to the Rise of Digital Leadership: 1/4 …
Last Sunday, I read an interesting article in a print magazine. It’s a rare occasion nowadays so I turned back to the story’s first page to find out the writer’s name. Then I opened the Twitter application on my smartphone. I’ve learned that Twitter is the best way to follow interesting writers, journalists and essayists. You’ll type …
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The CEO of a public company tweeted today about an interview. In the interview, the president of Nasdaq Helsinki sets up a portable studio and dicusses with Marimekko’s CEO Mika Ihamuotila about issues that are interesting to shareholders and traders. Great stuff! Finally a business that makes real, original content to engage its customers. This is not just a …
Zenefits is a company in trouble. They missed revenue projections, face regulatory charges, and their founder/CEO was forced to resign. How to pick up from here? The new CEO, David Sacks sent an email to all employees. The email was said to be “brilliant”. Let’s see what’s in it. Stripping the email down to essential, it …
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