Comment by BLP4YC | Hacker News Reader

Comment by BLP4YC | Hacker News Reader

To avoid any confusion: I did not come up with most of these features. They are based on these papers (hopefully I have not forgotten any):

* Exploring technological opportunities by linking technology and products: Application of morphology analysis and text mining (Byungun Yoon a,⁎, Inchae Park a, Byoung-youl Coh b) * Technology opportunity discovery (TOD) from existing technologies and products: A function-based TOD framework (Janghyeok Yoon a, Hyunseok Park b, Wonchul Seo c, Jae-Min Lee d, Byoung-youl Coh d,⁎, Jonghwa Kim a,⁎⁎) * Investigating technology opportunities: the use of SAOx analysis (Kyuwoong Kim1 · Kyeongmin Park1 · Sungjoo Lee1) * Identification and monitoring of possible disruptive technologies by patent-development paths and topic modeling (Abdolreza Momeni a, Katja Rost b,⁎) * A New Product Growth for Model Consumer Durables (Frank M. Bass) * Identifying rapidly evolving technological trends for R&D planning using SAO-based semantic patent networks (Janghyeok Yoon • Kwangsoo Kim) * Innovation hotspots in food waste treatment, biogas, and anaerobic digestion technology: A natural language processing approach (Djavan De Clercq a, Zongguo Wen a,⁎, Qingbin Song b) * TrendPerceptor: A property–function based technology intelligence system for identifying technology trends from patents (Janghyeok Yoon, Kwangsoo Kim)

When looking at a paper, how would you decide if it was of use to you?

It is a combination of:

How interesting I find the paper's ideas.

Would what the paper proposes work with large data sets and can what the paper proposes be (fully) automated.

Can I implement it (do I understand it enough, do I have access to the data)?

Curious, appears you used the same system for technical analysis of crypto ISOs valuations; if true, what if anything did you learn that to you was the most surprising as it relates to emergent tech know valuations?

Yes, absolutely right. The core tech. between crypto-valuations and tech-valuations stayed the same. It was basically: Python + spacy (plus a lot of different supporting libraries).

Some surprising aspects:

For tech-analysis, you can accomplish a lot by using a rule-based parsing because the source texts (e. g. patents) have the same sentence structure. In fact, several researches have shown that patent text follow a certain text structure (e. g. SAO, i. e. Subject-Action-Object).

For crypto, this was for more difficult as the text structures were all over the place.

Also, crypto-analysis ("back then") was very messy because it was difficult to find a trustworthy data set. With technologies you can confine it to Wikipedia, patents, scientific papers. There is still a lot to analyze, but at least you have a somewhat official data set.

Also with crypto you have far less data points per company/token/coin which makes it hard for a machine to not disregard it as noise.

Similarly, with tech-evaluation it seems that - because you get so much data from one document (e. g. one patent) you can often disregard a (big?) portion of it and still end up with good results.

Additionally, it seems to me that crypto-analysis was supposed to be far more numbers-heavy (how much funding etc.) and thus the tolerance for error was relatively small. E. g. if you miss one funding (out of three) you can change the company's valuation up to 50%. This happened to me basically all the time which was super frustrating.

The last surprising fact was how difficult and complicated keyword extraction is. For crypto evaluation I just went with relative word frequency (the more a word appears in a text the more important it becomes, assuming it does not appear in all the documents). However, as I have learnt with tech-evaluation, there are maybe four of five strategies for keyword extraction. And this is still an area where I have not found a solid solution for my NLP-case.

Finally, after all the reading that went into building researchly (which is relatively little) I have realized that I know significantly less about NLP than I have initially thought. It still fascinates me what kind strategies/algorithms people come up with.

For keyword extractions, since you’re already using spaCy, you might take a look at textacy, specifically:

textacy.ke.utils.most_discriminating_terms

Documentation is here:

https://chartbeat-labs.github.io/textacy/build/html/api_refe...

Code is based on this research:

King, Gary, Patrick Lam, and Margaret Roberts. “Computer-Assisted Keyword and Document Set Discovery from Unstructured Text.” (2014). http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.458...

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Thanks for the depth of your replies, love mapping information, finding patterns, “seeing the future”... though more often than not, even if you knew for sure some aspect of the future in a predictable way, still very hard to make use of it, mainly enjoy the topic as more as a info geek more than anything else.

Again, thanks for sharing!

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