Can a quant help make a better poet?

I have been intrigued by the applications of Artificial Intelligence (AI). The theory goes that you can program a machine to do things that humans are doing today. I buy the argument about machines replacing humans in routine, mundane tasks. But, can a machine take over the creativity process? Can a machine exhibit emotions like humans do? Can it write a poem or a story? In my own little way, I set out to find out...
Machines taking over humans' tasks - this is not something new. As we look around us, we see lots of examples of this. Afterall, the Automated Teller Machine - or as we better know it, the "ATM" - is a machine that replaced a human, the bank teller.

But with the growing attention and hype about Artificial Intelligence and Machine Learning, people are talking about two diametrically opposite scenarios: one in which machines help propel mankind into an amazing future, and the other where machines rule the world, to the point where humans become subservient to them.

While I believe that AI has the ability to make our lives much easier by taking over the performance of mundane tasks, there is still a question in the back of my head; can AI replace the thing that makes us human - emotions? Can it grow the ability to feel emotion and express it, through poems or stories?

I have been working on a book, a novella of sorts for quite some time now. It is titled "Catharsis" and tells the story of a girl who goes through some challenges in life. When I shared the first draft of the book with my teachers and my family for inputs, some of them said that it was "dark" and "not inspiring". While I agreed that it was a dark story - it was meant to be - I also knew that there was a good message behind it, one that was inspiring. Perhaps I didn't make it clear enough though, and I had to know for sure - had my book lost all the optimistic connotations I had tried to incorporate into it?

To get an independent view, I turned to a computer. I had just taken a few data analytics and machine learning classes from Berkeley and Stanford, and started researching a topic called "Sentiment Analysis", whereby you could have a piece of software analyze the sentiment of the written word.

After nearly a month of playing around with various algorithms and public domain pieces of software, I was able to get a lexicon called "DepecheMood" to analyze my book. I had to download the software, and feed it each chapter of my book and have it tell me the sentiment of the chapter. DepecheMood is the world's largest crowd-sourced sentiment analysis program whereby the community at large trains the software to understand and classify sentiment of a given piece of text into eight categories, viz: Afraid, Angry, Sad, Annoyed, Don't Care, Amused, Inspired and Happy.

I wrote small programs that summarized the sentiment of each chapter as an average of the sentiments of each line in the chapter.

The result was, as shown in the picture below, eye-opening for me.

Figure 1: Sentiment Analysis of the final draft of my book

From the picture above, it was clear to me that while my story did have a mix of emotions, there was nothing really exciting about the "mood" of the story. It did seem a bit monotonous, and arguably didn't have enough of the positive sentiments like Happiness and Inspiration. It did seem more skewed towards the negative sentiments.

The machine had answered my question, without a bias.

I set out to rewrite my book. It took me nearly five months to come up with the revised version. I resisted the temptation to feed each chapter in, till I was done with the writing. However, when I finished writing, I ran the analysis again, and here is what the summary result looked like.

Figure 2: Sentiment Analysis of the final version of my book

This time, the story had more ups and downs, perhaps more twists and turns in emotions. One chapter in particular (chapter 3) had the protagonist really afraid, but also inspired to do something about the problem she was facing. As the story progressed, you could see the protagonist being happy and overcoming her fears. I will not spoil the story further, but you can see that the final version looks completely different than the original version I started out with.

So, did I have the machine write me a story? Did it replace me as a writer? No. I had the machine tell me what was wrong with my story and helped me write a better story, with the message I had set out to send.

The future of machines making humans better, is a future that I see with Artificial Intelligence and robots.