ErikSchierboom
commented
10 months ago Exercise: bob
Code
(ns bob)
(defn question?
"A string terminated with a question mark is a question."
[s]
(clojure.string/ends-with? s "?"))
(defn yell?
"A string whose letters are all caps is a yell."
[s]
(let [letters (clojure.string/replace s #"[^a-zA-Z]" "")]
(and (not= letters "") (= letters (clojure.string/upper-case letters)))))
(defn silence?
"A string containing only whitespace is silence."
[s]
(clojure.string/blank? s))
(defn response-for
"Returns Bob's response to s."
[s]
(cond
(question? s) (if (yell? s) "Calm down, I know what I'm doing!" "Sure.")
(yell? s) "Whoa, chill out!"
(silence? s) "Fine. Be that way!"
:else "Whatever."))
Tags:
construct:and
construct:boolean
construct:char
construct:clojure-namespaced-keyword
construct:clojure-reader-macro
construct:clojure-string
construct:cond
construct:definition
construct:fn
construct:if
construct:invocation
construct:keyword
construct:let
construct:method
construct:parameter
construct:regex
construct:string
construct:symbol
construct:throw
construct:vector
paradigm:functional
paradigm:imperative
paradigm:object-oriented
technique:boolean-logic
technique:exceptions
technique:regular-expression
uses:Regex
Hello lovely maintainers :wave:
We've recently added "tags" to student's solutions. These express the constructs, paradigms and techniques that a solution uses. We are going to be using these tags for lots of things including filtering, pointing a student to alternative approaches, and much more.
In order to do this, we've built out a full AST-based tagger in C#, which has allowed us to do things like detect recursion or bit shifting. We've set things up so other tracks can do the same for their languages, but its a lot of work, and we've determined that actually it may be unnecessary. Instead we think that we can use machine learning to achieve tagging with good enough results. We've fine-tuned a model that can determine the correct tags for C# from the examples with a high success rate. It's also doing reasonably well in an untrained state for other languages. We think that with only a few examples per language, we can potentially get some quite good results, and that we can then refine things further as we go.
I released a new video on the Insiders page that talks through this in more detail.
We're going to be adding a fully-fledged UI in the coming weeks that allow maintainers and mentors to tag solutions and create training sets for the neural networks, but to start with, we're hoping you would be willing to manually tag 20 solutions for this track. In this post we'll add 20 comments, each with a student's solution, and the tags our model has generated. Your mission (should you choose to accept it) is to edit the tags on each issue, removing any incorrect ones, and add any that are missing. In order to build one model that performs well across languages, it's best if you stick as closely as possible to the C# tags as you can. Those are listed here. If you want to add extra tags, that's totally fine, but please don't arbitrarily reword existing tags, even if you don't like what Erik's chosen, as it'll just make it less likely that your language gets the correct tags assigned by the neural network.
To summarise - there are two paths forward for this issue:
If you tell us you're not able/wanting to help or there's no comment added, we'll automatically crowd-source this in a week or so.
Finally, if you have questions or want to discuss things, it would be best done on the forum, so the knowledge can be shared across all maintainers in all tracks.
Thanks for your help! :blue_heart:
Note: Meta discussion on the forum