Climate Rising: Extending Apparel Lifespan with ThredUp
The business model, brand strategy, and AI tools powering one of the largest secondhand clothing platforms.
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Instagram’s AI-driven identity crisis
Read Online | Sign Up | Advertise Good morning, {{ first_name | AI enthusiasts }}. The app that pioneered filter culture is now declaring the curated aesthetic dead. Instagram head Adam Mosseri says AI content has made polished posts worthless as proof of authenticity — and the platform that built its empire on the perfect grid is quickly scrambling to evolve to the new dynamics of social media in the AI age. In today’s AI rundown: IG head […]
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Top AI Tools of 2025: A Beginner-Friendly Guide to the Best AI Apps
Artificial Intelligence (AI) is everywhere in 2025 — from writing your emails to creating art — and it’s transforming the way we work and… Continue reading on Towards AI »
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Tech Tourism in Riyadh: Where Business, Learning & Culture Connect
Tech tourism is a rising global trend where professionals travel not just to discover new destinations, but also to learn, grow, network, and innovate. Riyadh is becoming the most thrilling tech tourism hotspot, driven by a goal to lead in digital economy growth and next-gen technologies. Offering a dynamic mix of hands-on learning, cultural immersion, and business opportunities, Riyadh makes every visit both experimental and professional. Pioneering global events like the Global AI Show Riyadh 2026, Global Blockchain […]
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NVIDIA AI Releases Nemotron 3: A Hybrid Mamba Transformer MoE Stack for Long Context Agentic AI
NVIDIA has released the Nemotron 3 family of open models as part of a full stack for agentic AI, including model weights, datasets and reinforcement learning tools. The family has three sizes, Nano, Super and Ultra, and targets multi agent systems that need long context reasoning with tight control over inference cost. Nano has about 30 billion parameters with about 3 billion active per token, Super has about 100 billion parameters with up to 10 billion active per […]
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OpenStreetMap, Google Maps alternative using Leaflet
In result of Google’s latest updates to its Maps API services (June 11, 2018), a lot of people are unhappy with these shocking changes. Increase in the price. Decrease in the free map loads. Obligation of adding a billing account. Etc… Therefore, a lot of those people are looking to replace their use of Google Maps to something as good (or at least remotely as good).
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The Machine Learning “Advent Calendar” Bonus 1: AUC in Excel
AUC measures how well a model ranks positives above negatives, independent of any chosen threshold. The post The Machine Learning “Advent Calendar” Bonus 1: AUC in Excel appeared first on Towards Data Science.
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EM Algorithm
Preliminaries Gaussian distribution log-likelihood Calculus partial derivative Lagrange multiplier EM Algorithm for Gaussian Mixture1 Analysis Maximizing likelihood could not be used in the Gaussian mixture model directly, because of its severe defects which we have come across at ‘Maximum Likelihood of Gaussian Mixtures’. With the inspiration of K-means, a two-step algorithm was developed. The objective function is the log-likelihood function: [ begin{aligned} ln Pr(mathbf{x}|mathbf{pi},mathbf{mu},Sigma)&=ln (Pi_{n=1}^Nsum_{j=1}^{K}pi_kmathcal{N}(mathbf{x}|mathbf{mu}_k,Sigma_k))\ &=sum_{n=1}^{N}ln sum_{j=1}^{K}pi_jmathcal{N}(mathbf{x}_n|mathbf{mu}_j,Sigma_j)\ end{aligned}tag{1} ]
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When Supply Chains Become Autonomous
A new simulation demonstrates how these might work—and how leadership will need to change to succeed with them.
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5 Data Privacy Stories from 2025 Every Analyst Should Know
In this article we look at 5 specific privacy stories from 2025 that changed how analysts work day to day, from the code they write to the reports they publish.
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