Clay weekly context brief for the Computer Science category (ISO week 2026-W28). Clay tracks publications from the Computer Science feed list. Below are recent items from this category, each with its source and a short description of what the publication covers when one is available in the source feed. Recent publications: 1. Bessel Beam Optimization for Near-Field THz Communications under UE Location Uncertainty Source: cs.NI (Networking and Internet Architecture) Link: https://arxiv.org/abs/2607.07069 To achieve the desired coverage and capacity levels, future terahertz (THz) wireless systems are envisioned to utilize extremely large antenna arrays. 2. Deployment-Time Memorization in Foundation-Model Agents Source: cs.MA (Multiagent Systems) Link: https://arxiv.org/abs/2606.10062 Foundation-model agents are increasingly long-lived systems that remember users across interactions, making memorization an explicit deployment-time function rather than solely a property of model weights. 3. Theoria: Rewrite-Acceptability Verification over Informal Reasoning States Source: cs.LO (Logic in Computer Science) Link: https://arxiv.org/abs/2607.01223 When should an AI system's answer be trusted? 4. Optimal Learning Rate Scaling Depends on Data in Deep Scalar Linear Networks Source: cs.LG (Machine Learning) Link: https://arxiv.org/abs/2607.07884 In this short note we consider the gradient descent dynamics of deep scalar linear networks, $f(x) = \prod_{l=1}^L w_l x$, which enjoy exact time-course solutions for any integer depth. 5. Retrieval-Augmented Generation Must Move Beyond Factual Grounding to Represent Diverse Opinions Source: cs.IR (Information Retrieval) Link: https://arxiv.org/abs/2604.12138 This position paper argues that Retrieval-Augmented Generation (RAG) systems exhibit a factual bias-optimizing for epistemic uncertainty reduction while ignoring the aleatoric uncertainty inherent in opinion-rich content. 6. Behavior Foundations for Quadruped Robots: ABot-C0 Technical Report Source: cs.HC (Human-Computer Interaction) Link: https://arxiv.org/abs/2607.07370 The motion controller is one of the most fundamental modules in embodied intelligence systems. 7. Peer-Predictive Self-Training for Language Model Reasoning Source: cs.GT (Computer Science and Game Theory) Link: https://arxiv.org/abs/2604.13356 Mechanisms for continued self-improvement of language models without external supervision remain an open challenge. 8. Neural Harmonic Textures for High-Quality Primitive Based Neural Reconstruction Source: cs.GR (Graphics) Link: https://arxiv.org/abs/2604.01204 Primitive-based methods such as 3D Gaussian Splatting have recently become the state-of-the-art for novel-view synthesis and related reconstruction tasks. 9. LLM for the development of FCM Source: cs.ET (Emerging Technologies) Link: https://arxiv.org/abs/2607.04983 This article is about the development of a fuzzy cognitive map using a local large language model. 10. Diagonal Packing for Efficient Homomorphic Sparse Matrix-Vector Multiplication Source: cs.DS (Data Structures and Algorithms) Link: https://arxiv.org/abs/2604.04683 Homomorphic encryption (HE) enables computation over encrypted data but incurs a substantial overhead. 11. Instance Generation for Patient-to-room Assignment and Admission Scheduling Based on Real Hospital Data Source: cs.DM (Discrete Mathematics) Link: https://arxiv.org/abs/2507.03423 Developing algorithms for real-life problems that perform well in practice depends on the availability of realistic data for testing. 12. Knowledge Graph and Accurate Portrait Construction of Scientific and Technological Academic Conferences Source: cs.DL (Digital Libraries) Link: https://arxiv.org/abs/2204.04888 In recent years, with the continuous progress of science and technology, the number of scientific research achievements has increased rapidly. 13. FastTrack: GPU-Accelerated Tracking for Visual SLAM Source: cs.DC (Distributed, Parallel, and Cluster Computing) Link: https://arxiv.org/abs/2509.10757 The tracking module of a visual-inertial SLAM system processes incoming image frames and IMU data to estimate the position of the frame in relation to the map. 14. Accelerating Confidential Databases with Crypto-free Mappings Source: cs.DB (Databases) Link: https://arxiv.org/abs/2603.18836 Confidential databases (CDBs) enable secure queries over sensitive data in untrusted cloud environments using confidential computing hardware. 15. Narration-of-Thought: Inference-Time Scaffolding for Defeasible Ethical Reasoning in Large Language Models Source: cs.CY (Computers and Society) Link: https://arxiv.org/abs/2606.26366 Standard chain-of-thought on moral dilemmas exhibits two failure modes: stakeholder collapse (the trace names at most one party with a stake in the outcome) and uncertainty suppression (no explicit unknowns or hedges before committing to an action). 16. LEEVLA: Seeing What Matters in Latent Environment Evolution for Vision-Language-Action Source: cs.CV (Computer Vision and Pattern Recognition) Link: https://arxiv.org/abs/2607.08182 Vision-language-action (VLA) models aim to map multimodal inputs to robot actions. 17. Secure QR Codes: Authenticity Verification via EdDSA Signatures and CBOR Certificates Source: cs.CR (Cryptography and Security) Link: https://arxiv.org/abs/2607.08383 QR codes are a ubiquitous part of daily life, widely trusted by millions. 18. SQuaD-SQL: Efficient Text-to-SQL with Small Language Models via LLM-Guided Knowledge Distillation Source: cs.CL (Computation and Language) Link: https://arxiv.org/abs/2607.08161 Text-to-SQL is a fundamental task in natural language processing that enables users to interact with structured databases using natural language. 19. A Lumped-Element Electrical Model of the Human Head for Brain-Oriented Applications Source: cs.CE (Computational Engineering, Finance, and Science) Link: https://arxiv.org/abs/2605.30172 In this work, we present a compact surrogate circuit for electro-quasi-static (EQS) head modeling. 20. Counterexamples to Wegner's Conjecture for Rectangles Source: cs.CG (Computational Geometry) Link: https://arxiv.org/abs/2606.17854 Wegner conjectured in 1965 that every finite family $\mathcal R$ of axis-parallel rectangles satisfies $\tau(\mathcal R)\le 2\nu(\mathcal R)-1$, where $\tau(\mathcal R)$ is the minimum number of piercing points and $\nu(\mathcal R)$ is the maximum size of a pairwise-disjoint subfamily. 21. Lower Bounds for PIR with Preprocessing from Blackbox Cryptography Source: cs.CC (Computational Complexity) Link: https://arxiv.org/abs/2607.06451 (shortened for arXiv metadata) We study the limits of single-server private information retrieval (PIR) with preprocessing. 22. Answer Set Programming Energised! End-to-End Neurosymbolic Reasoning and Learning with ASP and Energy Based Models Source: cs.AI (Artificial Intelligence) Link: https://arxiv.org/abs/2607.08136 We present a general neurosymbolic reasoning and learning methodology based on a modular integration of answer set programming with an energy based model substrate. 23. Benchmarking Recursive-Collapse Warning Claims Under Matched False-Positive Control Source: cs.SY (Systems and Control) Link: https://arxiv.org/abs/2606.00329 Recursive systems can enter collapse-like regimes -- self-reinforcing amplification, persistent recursion, and narrowing diversity that mask accelerating internal degradation -- before overt failure becomes visible. 24. Reconstructing Large Scale Production Networks Source: cs.SI (Social and Information Networks) Link: https://arxiv.org/abs/2512.02362 Firm-to-firm production networks matter for aggregate propagation, but they are rarely observed. 25. video-SALMONN-R$^3$: Learning to ReWatch, ReAsk, and ReAnswer for Efficient Video Understanding Source: cs.SD (Sound) Link: https://arxiv.org/abs/2606.24477 Video large language models (LLMs) are often constrained by computation and memory budgets, leading them to use reduced frame rates and spatial resolutions, which may cause them to miss critical information for question answering (QA). 26. FabriVLA: A Lightweight Vision-Language-Action Model for Precise Multi-Task Manipulation Source: cs.RO (Robotics) Link: https://arxiv.org/abs/2607.08575 We present FabriVLA, a lightweight Vision-Language-Action model for Precise Multi-Task Manipulation. 27. ShannonProver: Towards Automating Formal Cryptographic Proofs Source: cs.PL (Programming Languages) Link: https://arxiv.org/abs/2607.02847 Cryptographic proofs are produced at a scale that increasingly exceeds the community's ability to verify them manually. 28. uringscope: Portable, Low-Overhead Observability for io_uring Source: cs.PF (Performance) Link: https://arxiv.org/abs/2606.15137 io_uring moves I/O submission and completion into shared-memory rings. 29. Building a Low-cost Network Digital Twin for the IoT-Edge-Cloud Continuum Using Open-Source Tooling Source: cs.NI (Networking and Internet Architecture) Link: https://arxiv.org/abs/2606.24853 Validating network configurations and testing failure scenarios in IoT-edge-cloud environments without disrupting live infrastructure remains an open operational challenge. Sources in this brief: cs.AI (Artificial Intelligence); cs.CC (Computational Complexity); cs.CE (Computational Engineering, Finance, and Science); cs.CG (Computational Geometry); cs.CL (Computation and Language); cs.CR (Cryptography and Security); cs.CV (Computer Vision and Pattern Recognition); cs.CY (Computers and Society); cs.DB (Databases); cs.DC (Distributed, Parallel, and Cluster Computing); cs.DL (Digital Libraries); cs.DM (Discrete Mathematics); cs.DS (Data Structures and Algorithms); cs.ET (Emerging Technologies); cs.GR (Graphics); cs.GT (Computer Science and Game Theory); cs.HC (Human-Computer Interaction); cs.IR (Information Retrieval); cs.LG (Machine Learning); cs.LO (Logic in Computer Science); cs.MA (Multiagent Systems); cs.NI (Networking and Internet Architecture); cs.PF (Performance); cs.PL (Programming Languages); cs.RO (Robotics); cs.SD (Sound); cs.SI (Social and Information Networks); cs.SY (Systems and Control). Selected 29 of 302 available items for this weekly brief.