WiMi Explores Neural Networks for Twin-Field Quantum Key Distribution Optimization

Unlocking the Power of the TPU Stack: Introducing our new Developer Hub

Google Cloud vừa giới thiệu TPU Developer Hub, một nền tảng giáo dục tập trung dành cho nhà phát triển ML sử dụng TPU, bao gồm kiến trúc phần cứng, stack phần mềm (XLA, Pallas kernels), công cụ gỡ lỗi XProf, chiến lược tối ưu hóa (như offloading KV cache) cùng networking và bảo mật. Nội dung đa dạng từ Colabs tương tác, mã nguồn mở đến tài liệu chuyên sâu, hỗ trợ tích hợp AI-assisted development.

Lập trình viên ML nên đọc để hiểu cách tối ưu hóa hiệu suất và chi phí của mô hình trên TPU với các công cụ mới như XLA, Pallas và các chiến lược parallelism, từ đó tiết kiệm thời gian và nguồn lực trong triển khai sản phẩm AI.

Twisted Tethers Make Tidal Energy Cheaper and Cleaner

Researchers at Princeton have developed AI-driven methods to automate the design of radio-frequency integrated circuits (RFICs), a process traditionally considered a 'dark art' requiring years of expert experience. Using reinforcement learning to determine circuit architecture and topology from scratch, combined with an AI emulator that predicts electromagnetic behavior without running full simulations, the team produced a 5G millimeter-wave power amplifier that outperformed state-of-the-art human designs. They also applied diffusion models to make AI-generated circuit structures more interpretable by engineers. The approach eliminates reliance on human-designed templates, dramatically reduces design time from months to minutes, and has been validated for multiport circuits and sub-terahertz amplifiers. Key remaining challenges include reducing AI hallucinations, improving generalizability, and building open datasets — since most simulation data is locked behind NDAs.

Hexora v0.3: New features and improvements

Hexora v0.3 is a Python library for detecting malicious PyPI packages using static analysis. The new release adds a gradient boosting machine learning model that analyzes code structure, semantic features, and static analysis results to assess entire Python files. The ML model's primary role is filtering false positives — previously yielding 5-10 false positives per real finding. Running against newly published PyPI packages, it now detects 2-10 malicious packages daily. Remaining false positives mostly come from AI-related projects that use dynamic code execution, base64-inlined assets, or telemetry.

3 Questions: Beyond data-driven aesthetics

MIT Architecture alumnus Alexandros Haridis discusses his exhibition 'Beyond Data-Driven Aesthetics' at MIT's Keller Gallery, which traces the history of computational aesthetics from the 1930s through today. The exhibition translates dense algorithmic research — covering topics like George Birkhoff's mathematical aesthetic measure and the AICAN machine learning system — into physical installations and interactive visualizations. Haridis argues that many questions now framed as novel AI challenges around creativity and aesthetic judgment have deep roots in 20th-century computing research. The work is organized around five themes: Aesthetic Measure, Aesthetic Guidelines, Algorithmic Aesthetics, Aesthetic Appropriation, and Aesthetic Novelty, using design itself as an interpretive method to make opaque computational systems legible and experiential.

DiScoFormer: One transformer for density and score, across distributions

DiScoFormer (Density and Score Transformer) is a new model from AI2 that estimates both the probability density and score of a distribution from a finite sample in a single forward pass, without retraining per distribution. Built on transformer architecture with cross-attention, it analytically generalizes kernel density estimation (KDE) and outperforms it significantly in high dimensions — cutting score error by ~6.5x and density error by ~37x in 100 dimensions. Trained on Gaussian Mixture Models (which have closed-form densities), it generalizes to unseen distributions including Laplace and Student-t. A consistency loss between the density and score heads enables test-time adaptation to out-of-distribution inputs. The model targets shared infrastructure for generative modeling, Bayesian inference, and scientific computing.

How Far Can Classical NLP Go? From Bag-of-Words to Stacking on Spooky Author Identification

An end-to-end classical NLP experiment on Kaggle's Spooky Author Identification task, progressively building from a Vowpal Wabbit word baseline to a tuned stacked ensemble. The pipeline covers style-aware feature engineering (punctuation, character n-grams, TF-IDF), NB-SVM-style logistic regression, and stacking with out-of-fold predictions to avoid leakage. A representation survey compares sparse features (Bag-of-Words, BM25) against dense embeddings (Word2Vec, FastText), finding that sparse n-gram features outperform averaged dense vectors for short-text authorship attribution. The final stacked model achieves 0.8687 accuracy and 0.3504 log loss on a 70/30 holdout, and 0.30414 private log loss on Kaggle.

Ex-Tesla Optimus engineer settles trade secret lawsuit and raises $11M to build robot hands

Proception, a robotics startup founded by ex-Tesla Optimus engineer Jay Li, has settled a year-long trade secret lawsuit with Tesla and raised an $11M seed round led by First Round Capital. The company is now shipping its first dexterous robotic hands — featuring 22 degrees of freedom and a sensor-laden glove for scalable training data collection — to researchers and robotics companies. Tesla had sued Li in June 2025, alleging he downloaded confidential files before leaving to found Proception. The dexterous hand market is heating up globally, with competitors like China's Linkerbot dominating market share and European and Chinese startups raising hundreds of millions. Proception is betting that humanoid robot makers will outsource hand manufacturing rather than build in-house, positioning itself as a key supplier in the emerging humanoid robot supply chain.