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<!DOCTYPE html><html lang="en-US"><head><title>F1 doesn't matter (and other stories from the industry)</title><meta property="og:title" content="F1 doesn't matter (and other stories from the industry)"><meta name="description" content="IN5550 2023 Guest lecture"><meta property="og:description" content="IN5550 2023 Guest lecture"><meta charset="UTF-8"><meta name="viewport" content="width=device-width,height=device-height,initial-scale=1.0"><meta name="apple-mobile-web-app-capable" content="yes"><meta http-equiv="X-UA-Compatible" content="ie=edge"><meta property="og:type" content="website"><meta name="twitter:card" content="summary"><style>@media screen{body[data-bespoke-view=""] .bespoke-marp-parent>.bespoke-marp-osc>button,body[data-bespoke-view=next] .bespoke-marp-parent>.bespoke-marp-osc>button,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-info-container button,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container 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/*!
* Marp default theme.
*
* @theme default
* @author Yuki Hattori
*
* @auto-scaling true
* @size 16:9 1280px 720px
* @size 4:3 960px 720px
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- var(--marpit-advanced-background-split, 50%))}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]>figure{all:initial;background-position:center;background-repeat:no-repeat;background-size:cover;flex:auto;margin:0}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=content],div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=pseudo]{background:transparent!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background=pseudo],div#\:\$p>svg[data-marpit-svg]>foreignObject[data-marpit-advanced-background=pseudo]{pointer-events:none!important}div#\:\$p>svg>foreignObject>section[data-marpit-advanced-background-split]{width:100%;height:100%}</style></head><body><div class="bespoke-marp-osc"><button data-bespoke-marp-osc="prev" tabindex="-1" title="Previous slide">Previous slide</button><span data-bespoke-marp-osc="page"></span><button data-bespoke-marp-osc="next" tabindex="-1" title="Next slide">Next slide</button><button data-bespoke-marp-osc="fullscreen" tabindex="-1" title="Toggle fullscreen (f)">Toggle fullscreen</button><button data-bespoke-marp-osc="presenter" tabindex="-1" title="Open presenter view (p)">Open presenter view</button></div><div id=":$p"><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-class="invert" class="invert" style="--class:invert;--marpit-advanced-background-split:50%;" data-size="16:9" data-marpit-advanced-background="background" data-marpit-advanced-background-split="right"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("figures/industry.gif");"></figure></div></section></foreignObject><foreignObject width="50%" height="720"><section id="1" data-class="invert" class="invert" style="--class:invert;--marpit-advanced-background-split:50%;" data-size="16:9" data-marpit-advanced-background="content" data-marpit-advanced-background-split="right">
<h1 id="f1-doesnt-matter">F1 doesn't matter</h1>
<h2 id="%F0%9F%91%A8%E2%80%8D%F0%9F%9A%80--and-other-stories-from-the-industry"><img class="emoji" draggable="false" alt="👨🚀" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f468-200d-1f680.svg" data-marp-twemoji=""/> ... and other stories from <strong>the industry</strong></h2>
<blockquote>
<p><strong>Murhaf Fares</strong> (he/him)<br />
<strong>Emanuele Lapponi</strong> (he/him)<br />
Machine intelligence @Fremtind</p>
</blockquote>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-class="invert" class="invert" style="" data-size="16:9" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="right"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="2" data-paginate="true" data-marpit-pagination="2" data-marpit-pagination-total="41" style="--paginate:true;" data-size="16:9">
<h2 id="%F0%9F%A4%94-who-are-you"><img class="emoji" draggable="false" alt="🤔" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f914.svg" data-marp-twemoji=""/> Who are you?</h2>
<ul>
<li>LTG PhD class of 2019</li>
<li>Worked on NLP most of our professional lives</li>
<li>Mostly together <img class="emoji" draggable="false" alt="🤗" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f917.svg" data-marp-twemoji=""/></li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-marpit-pagination="3" data-marpit-pagination-total="41" style="--paginate:true;--marpit-advanced-background-split:50%;" data-size="16:9" data-marpit-advanced-background="background" data-marpit-advanced-background-split="right"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("figures/fremtind-logo.png");background-size:60%;"></figure></div></section></foreignObject><foreignObject width="50%" height="720"><section id="3" data-paginate="true" data-marpit-pagination="3" data-marpit-pagination-total="41" style="--paginate:true;--marpit-advanced-background-split:50%;" data-size="16:9" data-marpit-advanced-background="content" data-marpit-advanced-background-split="right">
<h2 id="%F0%9F%A4%94-whats-a-fremtind"><img class="emoji" draggable="false" alt="🤔" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f914.svg" data-marp-twemoji=""/> What's a Fremtind</h2>
<ul>
<li>One of Norway's leading insurance companies, owned by SB1 and DNB</li>
<li>Data is at the core of most insurance processes</li>
</ul>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-paginate="true" data-marpit-pagination="3" data-marpit-pagination-total="41" style="" data-size="16:9" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="right"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="4" data-paginate="true" data-marpit-pagination="4" data-marpit-pagination-total="41" style="--paginate:true;" data-size="16:9">
<h2 id="%F0%9F%93%9D-coming-up-in-this-talk"><img class="emoji" draggable="false" alt="📝" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f4dd.svg" data-marp-twemoji=""/> Coming up in this talk</h2>
<pre is="marp-pre" data-auto-scaling="downscale-only"><code>~/talks/f1-doesnt-matter main <img class="emoji" draggable="false" alt="✔" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/2714.svg" data-marp-twemoji=""/> 0m
<img class="emoji" draggable="false" alt="▶" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/25b6.svg" data-marp-twemoji=""/> cat slides.md | grep "^# \*\*"
# **Quick NLP hacks can have a big impact**
# **Visualize all the things**
# **On customer satisfaction and feedback**
# **A simple model is enough**
# **Make the most of small data**
# **F1 doesn't matter**
# **Budget UI is better than no UI**
# **Model management is hard**
# **The world beyond NLP and deep learning**
# **Being cool always beats raw technical prowess**
</code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-class="invert" class="invert" data-marpit-pagination="5" data-marpit-pagination-total="41" style="--paginate:true;--class:invert;--marpit-advanced-background-split:50%;" data-size="16:9" data-marpit-advanced-background="background" data-marpit-advanced-background-split="right"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("figures/mosquito.gif");"></figure></div></section></foreignObject><foreignObject width="50%" height="720"><section id="5" data-paginate="true" data-class="invert" class="invert" data-marpit-pagination="5" data-marpit-pagination-total="41" style="--paginate:true;--class:invert;--marpit-advanced-background-split:50%;" data-size="16:9" data-marpit-advanced-background="content" data-marpit-advanced-background-split="right">
<h1 id="quick-nlp-hacks-can-have-a-big-impact"><strong>Quick NLP hacks can have a big impact</strong></h1>
<h5 is="marp-h5" data-auto-scaling id="%F0%9F%A6%9F-or-dont-kill-a-mosquito-with-a-bazooka"> <img class="emoji" draggable="false" alt="🦟" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f99f.svg" data-marp-twemoji=""/> Or: Don't kill a mosquito with a bazooka</h5>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-paginate="true" data-class="invert" class="invert" data-marpit-pagination="5" data-marpit-pagination-total="41" style="" data-size="16:9" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="right"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-marpit-pagination="6" data-marpit-pagination-total="41" style="--paginate:true;--marpit-advanced-background-split:50%;" data-size="16:9" data-marpit-advanced-background="background" data-marpit-advanced-background-split="right"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("figures/destination.png");background-size:90%;"></figure></div></section></foreignObject><foreignObject width="50%" height="720"><section id="6" data-paginate="true" data-marpit-pagination="6" data-marpit-pagination-total="41" style="--paginate:true;--marpit-advanced-background-split:50%;" data-size="16:9" data-marpit-advanced-background="content" data-marpit-advanced-background-split="right">
<p><strong>Task</strong>: Given a "tell us what happened"-description, find out whether the travel destination is in Norway, Europe, or in the rest of the world</p>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-paginate="true" data-marpit-pagination="6" data-marpit-pagination-total="41" style="" data-size="16:9" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="right"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-marpit-pagination="7" data-marpit-pagination-total="41" style="--paginate:true;--marpit-advanced-background-split:50%;" data-size="16:9" data-marpit-advanced-background="background" data-marpit-advanced-background-split="right"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("figures/destination.png");background-size:90%;"></figure></div></section></foreignObject><foreignObject width="50%" height="720"><section id="7" data-paginate="true" data-marpit-pagination="7" data-marpit-pagination-total="41" style="--paginate:true;--marpit-advanced-background-split:50%;" data-size="16:9" data-marpit-advanced-background="content" data-marpit-advanced-background-split="right">
<p><strong>What worked:</strong></p>
<ul>
<li>Some off-the-shelf preprocessing with Spacy <img class="emoji" draggable="false" alt="💝" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f49d.svg" data-marp-twemoji=""/></li>
<li>Fuzzy matching against a knowledge-base of places</li>
</ul>
<h6 id="2000-claims-automated-%F0%9F%92%B0"><strong>~2000 claims automated <img class="emoji" draggable="false" alt="💰" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f4b0.svg" data-marp-twemoji=""/></strong></h6>
</section>
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<h1 id="visualize-all-the-things"><strong>Visualize all the things</strong></h1>
<p><img class="emoji" draggable="false" alt="🗺️" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f5fa.svg" data-marp-twemoji=""/> <strong>Seeing is believing</strong></p>
</section>
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<ul>
<li>We work with a bunch of different datasets</li>
<li>Some neural representations might be better than others</li>
<li>Some might be cheaper</li>
<li>What's a representation anyway? It's important to "build trust" across teams and customers. "Seeing is believing"</li>
</ul>
<h1 is="marp-h1" data-auto-scaling id="%F0%9F%8E%A8-one-thing-we-do-all-the-time-embed-reduce-scatter"><img class="emoji" draggable="false" alt="🎨" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f3a8.svg" data-marp-twemoji=""/> One thing we do all the time: Embed, reduce, scatter</h1>
</section>
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<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-python"><span class="hljs-keyword">import</span> altair <span class="hljs-keyword">as</span> alt
<span class="hljs-keyword">from</span> umap <span class="hljs-keyword">import</span> UMAP
two_d = UMAP().fit_transform(df[<span class="hljs-string">"embeddings"</span>])
df[<span class="hljs-string">"x"</span>], df[<span class="hljs-string">"y"</span>] = two_d[:, <span class="hljs-number">0</span>], two_d[:, <span class="hljs-number">1</span>]
alt.Chart(df).mark_circle(size=<span class="hljs-number">60</span>).encode(
x=<span class="hljs-string">'x'</span>,
y=<span class="hljs-string">'y'</span>,
tooltip=[<span class="hljs-string">"text"</span>]
).properties(width=<span class="hljs-number">1000</span>, height=<span class="hljs-number">500</span>).interactive()
</code></pre>
</section>
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<h1 id="on-customer-satisfaction-and-feedback"><strong>On customer satisfaction and feedback</strong></h1>
<h1 is="marp-h1" data-auto-scaling id="%F0%9F%98%B1-or-not-all-bad-feedback-is-interesting"> <img class="emoji" draggable="false" alt="😱" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f631.svg" data-marp-twemoji=""/> Or: Not all bad feedback is interesting</h1>
</section>
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<p><strong>Customer surveys</strong> are an important tool to improve processes in most product companies. At Fremtind, customers have the opportunity to give us written feedbacks at different steps of their journey: as they <strong>purchase</strong> new insurances, <strong>update/upgrade/review</strong> their coverage, and, perhaps most interestingly for our business, <strong>after a claim has been approved or rejected</strong> (some 50K a year.)</p>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-paginate="true" data-marpit-pagination="12" data-marpit-pagination-total="41" style="" data-size="16:9" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="left"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="13" data-paginate="true" data-marpit-pagination="13" data-marpit-pagination-total="41" style="--paginate:true;" data-size="16:9">
<p>"Vanilla" sentiment analysis is not necessarily useful to analyze and extract value from these written messages: Most messages come pre-equipped with a <img class="emoji" draggable="false" alt="🎲" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f3b2.svg" data-marp-twemoji=""/> or a <img class="emoji" draggable="false" alt="👍" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f44d.svg" data-marp-twemoji=""/>/<img class="emoji" draggable="false" alt="👎" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f44e.svg" data-marp-twemoji=""/>.</p>
<p>These user generated scoring systems are useful to take the general temperature of customer satisfaction, but fall short of providing a ranking of messages that are relevant to address different business problems.</p>
<h1 is="marp-h1" data-auto-scaling id="so-how-can-we-use-customer-feedback-to-improve-customer-satisfaction"> So how can we use customer feedback to improve customer satisfaction?</h1>
</section>
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<h2 id="facts">Facts:</h2>
<p>There are 3 key drivers for CS in insurance: (1) being paid, (2) being paid quickly, (3) clarity and respect in the claim process.</p>
<p>For (1), there is just not much we can do to improve: the damage is either covered or it isn't. For (2), well, we know. We either hire more temps in dire times, or some people are just going to have to be patient.</p>
<h4 id="for-3-we-decided-that-absolutely-all-customers-should-be-met-with-clear-language-and-a-high-level-of-empathy-and-understanding">For <strong>(3)</strong>, we decided that absolutely all customers should be met with clear language and a high level of empathy and understanding.</h4>
<h5 id="the-degrees-to-which-a-given-message-is-about-unclear-language-or-whether-the-customer-was-met-with-impatience-andor-antagonism-become-interesting-dimensions"><strong>The degrees to which a given message is about unclear language, or whether the customer was met with impatience and/or antagonism become interesting dimensions.</strong></h5>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-paginate="true" data-marpit-pagination="15" data-marpit-pagination-total="41" style="--paginate:true;--marpit-advanced-background-split:50%;" data-size="16:9" data-marpit-advanced-background="background" data-marpit-advanced-background-split="left"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("figures/dimensions.jpg");"></figure></div></section></foreignObject><foreignObject width="50%" height="720" x="50%"><section id="15" data-paginate="true" data-marpit-pagination="15" data-marpit-pagination-total="41" style="--paginate:true;--marpit-advanced-background-split:50%;" data-size="16:9" data-marpit-advanced-background="content" data-marpit-advanced-background-split="left">
<h1 id="%F0%9F%A7%99%E2%80%8D%E2%99%80%EF%B8%8F-mana"><img class="emoji" draggable="false" alt="🧙♀️" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f9d9-200d-2640-fe0f.svg" data-marp-twemoji=""/> Mana</h1>
<p>In this project, we score customer feedback and other interactions from a variety of sources with the degree to which they pertain different (relevant) aspects of communication. This enables our (hundreds of) colleagues to <strong>read more relevant messages</strong> and use <strong>text scores as quantities for their KPIs</strong>.</p>
</section>
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<h1 id="a-simple-model-is-enough"><strong>A simple model is enough</strong></h1>
<p><img class="emoji" draggable="false" alt="😎" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f60e.svg" data-marp-twemoji=""/> <strong>Or: how I learned how to stop worrying and just throw some pretrained embeddings at a dense layer</strong><br />
</p>
</section>
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<ul>
<li>Each of the aforementioned dimensions translates to a simple text classification problem</li>
<li>Supervised learning: a training set of pairs (text, relevant/irrelevant)</li>
<li>We train a simple feedforward neural network with input representation from sentence transformers (e.g., Bert, Universal Sentence Encoders, etc...)</li>
<li>Shoutout <code>https://huggingface.co/NbAiLab/nb-sbert-base</code>! <img class="emoji" draggable="false" alt="🙌" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f64c.svg" data-marp-twemoji=""/></li>
</ul>
</section>
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<h3 is="marp-h3" data-auto-scaling id="topic-classification-for-customer-feedbacks"> <strong>Topic classification for customer feedbacks</strong></h3>
<ul>
<li>Find extra (textual) features such as the URL of the page on which the customer wrote their feedback</li>
<li>Preprocess the URL and embed it<br />
</li>
</ul>
</section>
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<h3 id="transfer-learning"><strong>Transfer learning</strong></h3>
<ul>
<li>We have different models for different teams</li>
<li>Each team define their own categories, but those overlap</li>
<li>This can be exploited by simply initializing the model weights in model B using weights from model A<br />
</li>
</ul>
</section>
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<h2 is="marp-h2" data-auto-scaling id="building-the-model-is-only-one-piece-of-the-puzzle-though"> <strong>Building the model is only one piece of the puzzle, though</strong></h2>
<ul>
<li>Text preprocessing is a must regardless of how good your embeddings are</li>
<li>For example, anonymization: no consumer data should leak into training data</li>
</ul>
<h2 id="look-at-your-data-again-and-again-%F0%9F%A7%90">Look at your data, again and again <img class="emoji" draggable="false" alt="🧐" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f9d0.svg" data-marp-twemoji=""/></h2>
<p>→ Don't sleep on embed/reduce/scatter!</p>
</section>
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<h1 id="serving-the-models"><strong>Serving the models</strong></h1>
<ul>
<li>REST API in a microservice</li>
<li>Scheduled tasks: fetch the data every day/week/month, score it and write it back</li>
</ul>
</section>
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<h1 id="make-the-most-of-small-data"><strong>Make the most of small data</strong></h1>
<p><img class="emoji" draggable="false" alt="🤬" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f92c.svg" data-marp-twemoji=""/> <strong>Or: nobody is going to like you if you constantly ask people to annotate data for you</strong></p>
</section>
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<h2 id="problem-we-need-classification-models-for-clarity">Problem: We need <strong>classification</strong> models for <strong>clarity</strong></h2>
<p>... but we have no data</p>
<p>Instead of asking people to annotate more data, can we pick their brains about how they would annotate the data and use that expertise somehow?</p>
</section>
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<h4 id="thank-god-for"><em>Thank god for</em></h4>
<h3 is="marp-h3" data-auto-scaling id="weak-supervision"> <strong>Weak Supervision!</strong></h3>
<ul>
<li>(Re)use existing sentiment dataset to create new datasets for clarity and impudence</li>
<li>Translate their expertise to labelling functions to produce so-called silver data <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.566ex;" xmlns="http://www.w3.org/2000/svg" width="6.42ex" height="2.857ex" role="img" focusable="false" viewBox="0 -1013 2837.7 1263"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mo"><path data-c="28" d="M94 250Q94 319 104 381T127 488T164 576T202 643T244 695T277 729T302 750H315H319Q333 750 333 741Q333 738 316 720T275 667T226 581T184 443T167 250T184 58T225 -81T274 -167T316 -220T333 -241Q333 -250 318 -250H315H302L274 -226Q180 -141 137 -14T94 250Z"></path></g><g data-mml-node="mi" transform="translate(389,0)"><path data-c="1D44B" d="M42 0H40Q26 0 26 11Q26 15 29 27Q33 41 36 43T55 46Q141 49 190 98Q200 108 306 224T411 342Q302 620 297 625Q288 636 234 637H206Q200 643 200 645T202 664Q206 677 212 683H226Q260 681 347 681Q380 681 408 681T453 682T473 682Q490 682 490 671Q490 670 488 658Q484 643 481 640T465 637Q434 634 411 620L488 426L541 485Q646 598 646 610Q646 628 622 635Q617 635 609 637Q594 637 594 648Q594 650 596 664Q600 677 606 683H618Q619 683 643 683T697 681T738 680Q828 680 837 683H845Q852 676 852 672Q850 647 840 637H824Q790 636 763 628T722 611T698 593L687 584Q687 585 592 480L505 384Q505 383 536 304T601 142T638 56Q648 47 699 46Q734 46 734 37Q734 35 732 23Q728 7 725 4T711 1Q708 1 678 1T589 2Q528 2 496 2T461 1Q444 1 444 10Q444 11 446 25Q448 35 450 39T455 44T464 46T480 47T506 54Q523 62 523 64Q522 64 476 181L429 299Q241 95 236 84Q232 76 232 72Q232 53 261 47Q262 47 267 47T273 46Q276 46 277 46T280 45T283 42T284 35Q284 26 282 19Q279 6 276 4T261 1Q258 1 243 1T201 2T142 2Q64 2 42 0Z"></path></g><g data-mml-node="mo" transform="translate(1241,0)"><path data-c="2C" d="M78 35T78 60T94 103T137 121Q165 121 187 96T210 8Q210 -27 201 -60T180 -117T154 -158T130 -185T117 -194Q113 -194 104 -185T95 -172Q95 -168 106 -156T131 -126T157 -76T173 -3V9L172 8Q170 7 167 6T161 3T152 1T140 0Q113 0 96 17Z"></path></g><g data-mml-node="TeXAtom" data-mjx-texclass="ORD" transform="translate(1685.7,0)"><g data-mml-node="mover"><g data-mml-node="mi"><path data-c="1D44C" d="M66 637Q54 637 49 637T39 638T32 641T30 647T33 664T42 682Q44 683 56 683Q104 680 165 680Q288 680 306 683H316Q322 677 322 674T320 656Q316 643 310 637H298Q242 637 242 624Q242 619 292 477T343 333L346 336Q350 340 358 349T379 373T411 410T454 461Q546 568 561 587T577 618Q577 634 545 637Q528 637 528 647Q528 649 530 661Q533 676 535 679T549 683Q551 683 578 682T657 680Q684 680 713 681T746 682Q763 682 763 673Q763 669 760 657T755 643Q753 637 734 637Q662 632 617 587Q608 578 477 424L348 273L322 169Q295 62 295 57Q295 46 363 46Q379 46 384 45T390 35Q390 33 388 23Q384 6 382 4T366 1Q361 1 324 1T232 2Q170 2 138 2T102 1Q84 1 84 9Q84 14 87 24Q88 27 89 30T90 35T91 39T93 42T96 44T101 45T107 45T116 46T129 46Q168 47 180 50T198 63Q201 68 227 171L252 274L129 623Q128 624 127 625T125 627T122 629T118 631T113 633T105 634T96 635T83 636T66 637Z"></path></g><g data-mml-node="mo" transform="translate(427,191) translate(-278 0)"><path data-c="2DC" d="M374 597Q337 597 269 627T160 658Q101 658 34 606L24 597L12 611Q1 624 1 626Q1 627 27 648T55 671Q120 722 182 722Q219 722 286 692T395 661Q454 661 521 713L531 722L543 708Q554 695 554 693Q554 692 528 671T500 648Q434 597 374 597Z"></path></g></g></g><g data-mml-node="mo" transform="translate(2448.7,0)"><path data-c="29" d="M60 749L64 750Q69 750 74 750H86L114 726Q208 641 251 514T294 250Q294 182 284 119T261 12T224 -76T186 -143T145 -194T113 -227T90 -246Q87 -249 86 -250H74Q66 -250 63 -250T58 -247T55 -238Q56 -237 66 -225Q221 -64 221 250T66 725Q56 737 55 738Q55 746 60 749Z"></path></g></g></g></svg></mjx-container></li>
</ul>
</section>
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<h1 id="%F0%9F%A4%BF-labeling-functions-can-be-as-simple-as"><img class="emoji" draggable="false" alt="🤿" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f93f.svg" data-marp-twemoji=""/> Labeling functions can be as simple as:</h1>
<pre is="marp-pre" data-auto-scaling="downscale-only"><code class="language-python"><span class="hljs-keyword">def</span> <span class="hljs-title function_">lf_short_message_positive</span>(<span class="hljs-params">x</span>):
<span class="hljs-keyword">if</span> <span class="hljs-built_in">len</span>(x.doc) < <span class="hljs-number">5</span> <span class="hljs-keyword">and</span> x.sentiment_score < <span class="hljs-number">0.4</span>:
<span class="hljs-keyword">return</span> <span class="hljs-number">0</span>
<span class="hljs-keyword">return</span> -<span class="hljs-number">1</span>
<span class="hljs-keyword">def</span> <span class="hljs-title function_">lf_contains_one_strong_and_negative</span>(<span class="hljs-params">x</span>):
<span class="hljs-keyword">if</span> x.sentiment_score >= <span class="hljs-number">0.5</span> <span class="hljs-keyword">and</span> contains_word(x.doc, ASSETS[<span class="hljs-string">"UNCLARITY"</span>][<span class="hljs-string">"strong"</span>]) :
<span class="hljs-keyword">return</span> <span class="hljs-number">1</span>
<span class="hljs-keyword">return</span> -<span class="hljs-number">1</span>
<span class="hljs-keyword">def</span> <span class="hljs-title function_">lf_six_and_positive</span>(<span class="hljs-params">x</span>):
<span class="hljs-keyword">if</span> x.sentiment_score < <span class="hljs-number">0.5</span> <span class="hljs-keyword">and</span> x[dice_col_unc] == <span class="hljs-number">6</span>:
<span class="hljs-keyword">return</span> <span class="hljs-number">0</span>
<span class="hljs-keyword">return</span> -<span class="hljs-number">1</span>
</code></pre>
</section>
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<h1 id="f1-doesnt-matter-1"><strong>F1 doesn't matter</strong></h1>
<p><img class="emoji" draggable="false" alt="💖" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f496.svg" data-marp-twemoji=""/> <strong>Or: does it spark joy?</strong></p>
</section>
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<ul>
<li>Of course F1 and other metrics <em>do</em> matter, but they are not the only thing we consider</li>
<li>What is a <em>good</em> model, anyway?</li>
<li>What is good enough when we are limited by time and resources?</li>
</ul>
</section>
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<h1 id="f1-doesnt-matter-2">F1 <strong>doesn't matter</strong></h1>
<p><img src="figures/2models.png" alt="" style="width:2000px;" /></p>
</section>
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<h3 is="marp-h3" data-auto-scaling id="qualitative-is-as-important-as-quantitative-%F0%9F%8D%92"> Qualitative is as important as quantitative <img class="emoji" draggable="false" alt="🍒" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f352.svg" data-marp-twemoji=""/></h3>
<ul>
<li>Short feedback messages tend to be positive, whereas longer ones fall more on the negative side</li>
<li>A recurrent neural network could learn that</li>
<li>Would the model output still be interesting? Depends on how it will be used</li>
</ul>
<h2 id="think-about-the-consumers-of-the-model-output-%F0%9F%9B%8D%EF%B8%8F"><strong>Think about the consumers of the model output</strong> <img class="emoji" draggable="false" alt="🛍️" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f6cd.svg" data-marp-twemoji=""/></h2>
</section>
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<h4 is="marp-h4" data-auto-scaling id="friends-dont-let-friends-obsess-on-hyperparameter-tuning-%F0%9F%98%B5%E2%80%8D%F0%9F%92%AB"> Friends don't let friends obsess on hyperparameter tuning <img class="emoji" draggable="false" alt="😵💫" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f635-200d-1f4ab.svg" data-marp-twemoji=""/></h4>
<ul>
<li>Simplicity, efficiency vs improving F1 by 0.1</li>
<li>No point in e.g. spending a lot of resources and time on fine-tuning a Bert, if vanilla works well enough</li>
<li>Hp-tuning is a waste of time if you don't like what comes out of the model</li>
</ul>
<h4 is="marp-h4" data-auto-scaling id="simplefastnot-clunky-is-often-more-valuable-than-a-few-percentage-points-%F0%9F%92%B0"> <strong>Simple/fast/not clunky is often more valuable than a few percentage points</strong> <img class="emoji" draggable="false" alt="💰" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f4b0.svg" data-marp-twemoji=""/></h4>
</section>
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<h2 id="%F0%9F%9B%A0%EF%B8%8F-tradeoffs-of-the-trade"><img class="emoji" draggable="false" alt="🛠️" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f6e0.svg" data-marp-twemoji=""/> Tradeoffs of the trade</h2>
<ul>
<li>Precision and/or recall, at thresholds!</li>
<li>Sometimes a bad model is better than no model at all</li>
<li>Can we tweak the system implementation so that false positives don't matter as much?</li>
</ul>
</section>
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<h1 id="budget-ui-is-better-than-no-ui"><strong>Budget UI is better than no UI</strong></h1>
<p><img class="emoji" draggable="false" alt="🎨" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f3a8.svg" data-marp-twemoji=""/> <strong>Or: unleash your inner frontend dev</strong></p>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-paginate="true" data-class="invert" class="invert" data-marpit-pagination="32" data-marpit-pagination-total="41" style="" data-size="16:9" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="right"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="33" data-paginate="true" data-marpit-pagination="33" data-marpit-pagination-total="41" style="--paginate:true;" data-size="16:9">
<p><img class="emoji" draggable="false" alt="🔥" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f525.svg" data-marp-twemoji=""/> <strong>Hot take</strong></p>
<h1 is="marp-h1" data-auto-scaling id="an-interactive-demo-is-worth-more-than-a-better-model-100-excel-sheets-or-1000-reports"> An interactive demo is worth more than a better model, 100 excel sheets or 1000 reports</h1>
<p><code>https://streamlit.io/</code></p>
<p>→ cmd-tab to Cura</p>
</section>
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<h1 id="model-management-is-hard"><strong>Model management is hard</strong></h1>
<p><img class="emoji" draggable="false" alt="🎨" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f3a8.svg" data-marp-twemoji=""/> <strong>Don't do it (yourself)</strong></p>
</section>
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<p>Long story short: you gotta keep track of models, data, model versions, val/test splits, evaluation plots, comments, and more.</p>
<h1 is="marp-h1" data-auto-scaling id="you-are-not-going-to-be-able-to-do-it-well-for-yourself-let-alone-a-whole-team"> You are <strong>not</strong> going to be able to do it (well) for yourself, let alone a whole team</h1>
<p>We use <code>https://github.com/mlflow/mlflow/</code></p>
<p>→ cmd-tab to ml-flow</p>
</section>
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<h1 id="the-world-beyond-nlp-and-deep-learning"><strong>The world beyond NLP and deep learning</strong></h1>
<p><img class="emoji" draggable="false" alt="🚪" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f6aa.svg" data-marp-twemoji=""/> <strong>Tabular data, for example</strong></p>
</section>
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<h1 id="%F0%9F%A7%81-muffins"><img class="emoji" draggable="false" alt="🧁" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f9c1.svg" data-marp-twemoji=""/> Muffins</h1>
<ul>
<li>A system that produces a score to reflect 'problematic' customer profiles</li>
<li>Trained on e.g. fraud</li>
<li>Working with tabular data, <strong>gradient boosting</strong> and old-school feature engineering is satisfying <img class="emoji" draggable="false" alt="✨" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/2728.svg" data-marp-twemoji=""/></li>
<li>A viper's nest of potential ethical pitfalls; explainable AI is a <strong>MUST</strong></li>
</ul>
<p>→ Check out:<br />
<code>https://medium.com/fremtind/forsikring-og-muffens-fa2e8cfbca5b</code><br />
<code>https://github.com/odaon/muffins-ai-motor</code></p>
</section>
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<h1 id="putting-a-system-in-production-is-an-art-in-itself-%F0%9F%8C%8E">Putting a system in production is an art in itself <img class="emoji" draggable="false" alt="🌎" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f30e.svg" data-marp-twemoji=""/></h1>
<p>Some call it <strong>MLOps</strong></p>
</section>
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<h1 id="being-cool-always-beats-raw-technical-prowess"><strong>Being cool always beats raw technical prowess</strong></h1>
<p><img class="emoji" draggable="false" alt="🤝" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f91d.svg" data-marp-twemoji=""/> <strong>Or: be a bud</strong></p>
</section>
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<h3 id="some-things-we-have-seen">Some things we have seen</h3>
<ul>
<li>Dropping model names like you are swapping pokemon cards</li>
<li>Gatekeeping and arrogance</li>
<li>Toxic code reviews</li>
<li>Now that every LinkedIn influencer is a ChatGPT expert, it's easy to forget that NLP is hard.</li>
</ul>
<h5 id="empathy-and-willingness-to-learn-and-share-are-extremely-valuable-both-on-a-human-and-on-a-financial-level-%F0%9F%92%96"><strong>Empathy and willingness to learn and share are extremely valuable, both on a human and on a financial level</strong> <img class="emoji" draggable="false" alt="💖" src="https://cdn.jsdelivr.net/gh/jdecked/[email protected]/assets/svg/1f496.svg" data-marp-twemoji=""/></h5>
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<h1 id="thank-you">Thank you!</h1>
<h3 id="questions">Questions?</h3>
</section>
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