Your AI research companion

1. cs.CVIntervenable Concept Dynamics for Video Activity ForecastingPatrick Knab, David Steinmann, Giovanni De Felice, Felix Divo, Udo Schlegel, Wo…

   This work forecasts future activities in videos through named concepts that people can inspect and edit, such as the actions and relationships visible in a scene. Such edits can change some incorrect forecasts and steer predictions toward a requested activity, …

2. cs.CVBeyond the Last Layer: Global Inter-Layer Aggregation for AI-Generated Image DetectionWenbin Shen, Zhichao Lian

   The authors build an image detector that combines information from several depths of a pretrained vision model instead of relying only on its final output. Tests across different model backbones, image generators, and external datasets show improved detection and performance …

3. cs.LGOutput-Aware Block Influence: Jacobian-Lens Weighting for Depth PruningKyle Lemoi, Jonathan Yong, Shubhankar Tripathy, Priestley Fernandes, Anirban Ma…

   Removing whole blocks from a language model can make it smaller, but deciding which blocks are safe to remove is difficult. The authors use information about how a block's changes affect the model's final output, and report that this improves …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

New preprints explore robots learning from simulation, AI-assisted mathematical discovery, and why accuracy depends on what—and where—we choose to measure.

6 papers put into perspective

1. The coastline looks different outside the training set
2. When more accurate arithmetic breaks a model
3. AI text spreads unevenly across the web
4. Cleaner movement data can change the movement being measured

1. astro-ph.EPTwo Isolated Microlensing Events Near the Upper Shore of Einstein DesertQiyue Qian, Weicheng Zang, Yoon-Hyun Ryu, Takahiro Sumi, Andrzej Udalski, Hongj…

   The authors analyzed two microlensing events that may have been caused by isolated giant planets or brown dwarfs, near a range where such objects appear unusually scarce. Comparing isolated objects with planets that orbit stars suggests the gap may be …

2. astro-ph.EPGravitational Capture of Large Interstellar Planetesimals by Collapsing Prestellar CoresRichard Anderson, Kedron Silsbee

   This study modeled whether wandering space rocks can be pulled into a star system as the cloud that forms a star collapses. The total captured material is small, but the largest captured bodies might grow by gathering material in the …

3. astro-ph.EPHD 210058 b and BD+37 4838 b: A precessing eccentric hot Jupiter and a misaligned substellar companion around…Z. Balkoova, J. Zak, M. Skarka, M. C. Johnson, A. W. Mann, M. G. Barber et al.

   The authors used space-telescope observations and stellar spectra to test two possible companions orbiting fast-spinning A-type stars and measure how their orbits are tilted relative to the stars. One is a massive hot Jupiter whose orbit appears to precess, while …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

This week’s preprints uncover an overlooked outer Solar System object, revisit a stubborn chemical puzzle and use light from stellar remnants to reconstruct what cannot be seen directly.

6 papers put into perspective

1. A bright world in a neglected patch of sky
2. A chemical discrepancy becomes a temperature problem
3. Measuring a neutron star across the spectrum
4. A supernova with a delayed return

1. quant-phTriple descent in quantum linear regressionGabriele Lo Monaco, Salvatore Lorenzo, Alessandro Ferraro, Mauro Paternostro, G…

   The study shows that measurement noise in quantum machine-learning data can cause two separate surges in prediction error as a model grows, rather than merely making predictions less precise. One surge can be reduced by taking more measurements at prediction …

2. quant-phBenchmarking Quantum Convolutional Neural Networks and their classical surrogates on long-range strongly corr…Tatiana A. Bespalova, Reka Schwengelbeck, Laura Mismetti, Johannes Schachenmaye…

   The authors test quantum neural-network classifiers and simpler classical substitutes on models of interacting particles, asking how well they identify different phases of matter. The results show that the simpler approach works with fewer calculations for one model than another, …

3. quant-phDistance to integrability and complexitySean Casey, Marius de Leeuw, Tristan McLoughlin, Sergiy Zhuk

   This study finds all integrable nearest-neighbour models for spin-1/2 chains and uses them to measure how far other models are from being integrable. Standard indicators of chaotic behavior generally change with this distance, but the distance also distinguishes models that …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

New preprints explore how quantum behavior is lost, preserved and engineered—and how a seemingly reversible change can undermine quantum communication.

6 papers put into perspective

1. Watching an electron lose its quantum character
2. For silicon qubits, quieter can also mean harder to drive
3. A small quantum processor hosts a fractional quantum state
4. Repeated measurement slows a spin system’s forgetting

1. cond-mat.mtrl-sciIn the age of big data and AI: do we still need chemical bonds?Mohammed Al-Fahdi, Aakash Naik, Katharina Ueltzen, Luc Walterbos, Tom Demeyere,…

   The authors ask whether machine learning makes the idea of chemical bonds unnecessary for understanding materials. They find that machine-learning models can recover familiar bonding information and that adding such information can improve predictions, suggesting bonds remain a useful way …

2. cond-mat.softIntermolecular and Interfacial Origins of Layering in a Near-Isotropic Organic Glass FormerCharles H. Carroll, Juliana I. Bonilla-Lugo, Arthur Y. Lin, Richard Stephens, P…

   The researchers studied how thin films of a nearly spherical organic molecule form layers when deposited as glass. Experiments and simulations suggest that this pattern comes mainly from molecules collectively arranging at the film’s free surface, rather than from molecules …

3. physics.app-phMagnetoelectric Wireless Power Transfer Receivers for Sub-Millimeter Scale Implantable BioelectronicsJonathan Tan, Serene Feng, Thomas Mion, Sydney Acosta, Konrad Bussmann, Peter F…

   The researchers made a tiny wireless power receiver designed for implants in parts of the body where space is especially limited. It delivers microwatt-level power in a very small footprint, offering a possible way to run battery-free medical sensors in …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

This week’s selected preprints use interference, ultrafast light, electron correlations and living swimmers to reveal how microscopic behavior becomes measurable collective order.

6 papers put into perspective

1. Distant clocks become a probe of gravity
2. A superconducting state reveals its internal sign pattern
3. Light opens a topological gap in graphene
4. Clockwise swimmers build a counterclockwise fluid

1. hep-phThe Standard Model with Non-Anticommuting $\gamma_5$ in the BMHV SchemePaul Kuhler, Dominik Stockinger, Matthias Weisswange

   The researchers carry out a complete one-loop renormalization of the Standard Model using a consistent way to handle a difficult mathematical object called gamma five. They identify the counterterms needed to restore key symmetries and explain how gauge interactions should …

2. gr-qcRemark About Action for Rastall GravityJ. Kluson

   This short study revisits how to write an action for a theory of gravity called Rastall gravity. It gives a version that remains unchanged under reparametrization and derives the equations that follow from it.

3. hep-exSearch for $\mathrm{GeV}$-scale axion-like particles in PbPb collisionsLHCb collaboration, R. Aaij, M. Abdelfatah, A. S. W. Abdelmotteleb, C. Abellan …

   The LHCb team searched heavy-ion collision data for short-lived, axion-like particles that could be produced when two photons interact. The search probes previously unexplored possibilities and sets the strongest limits so far for this process in part of the tested …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

New preprints use neutrinos, nuclear decay, colliding nuclei, numerical QCD and gravitational waves to test how well our descriptions of nature survive demanding measurements.

6 papers put into perspective

1. A clearer signal from reactor neutrinos
2. Small nuclear collisions show a collective pattern
3. An exotic nucleus tests how particles decay together
4. Computing the thermodynamics of dense quark matter

1. bioRxiv: NeuroscienceThe ViRA-L (Visual Recognition Assessment-Leuven): Development, Validation, and Age Stratified Normative Char…L. Soen, C. R. Gillebert, H. Op de Beeck

   The researchers created a test of visual recognition memory covering ten categories, with tasks designed to be comparable across categories, and collected reference scores from Dutch-speaking adults. Scores were generally reliable, and age was the clearest demographic factor associated with …

2. q-bio.NCIntrinsic network dynamics catalyze switching in functional connectivity states of the brainSteven S. Kang, Dae-Jin Kim

   The authors developed a way to track shifts between patterns of brain connectivity and applied it to brain scans collected during tasks and rest. They found that changes in two major brain networks tend to move in opposite directions before …

3. q-bio.NCModeling Visual Cortex with Layerwise Multiscale Manifold Capacity MaximizationThomas Yerxa, SueYeon Chung, Eero P. Simoncelli

   The authors built a vision model that learns in stages, using a different local learning signal at each stage instead of relying on one learning signal sent through the entire model. Tested against brain-response and human behavior data, the model …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

A simulated fly, a stress test for seizure prediction and studies of developing brains and inherited risk reveal why biological explanations depend on what surrounds the system being studied.

5 papers put into perspective

1. A fly connectome takes its first steps
2. The seizure predictor depends on the test
3. Seeing helps blood vessels mature
4. Birth changes the developmental clock

1. medRxiv: Infectious DiseasesClinical Evaluation of the PANDAA Lassa Virus RT-PCR Assay in Sierra LeoneD. S. Grant, C. R. Thompson, J. Sandi, M. Manjia, T. Kallon, M. S. Kamara et al.

   Researchers compared a newer one-reaction Lassa virus test with a commonly used test using archived blood samples from Sierra Leone. The newer test showed substantial agreement, but further refinement and testing in real-time clinical settings are needed.

2. medRxiv: Infectious DiseasesImplementation of an Intervention to Improve Blood Culture Stewardship in 14 Adult ICUs and Wards.V. Fabre, Y.-J. Hsu, A. Xie, A. B. Salinas, P. Beccar-Varela, V. Martinez et al.

   A year-long quality improvement program in 14 hospital units introduced guidance, education, and feedback on when to order blood cultures. Results varied between units, but the study identified practical ways to improve ordering and suggests tailoring efforts to each unit’s …

3. q-bio.BMAutomatic Generation of Novel Highly-Functional Molecular SequencesVincent R. Ragusa, Chrisoph Adami

   The authors compared ways to generate new molecular sequences that may work better than the examples used to create them, testing them on two complete maps of sequence performance. A fast method based on information theory found rare, high-performing sequences …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

This week’s preprints trace how nerves, immune cells, fungi and membrane proteins shape disease—and how a diagnosis can remain absent even when the laboratory evidence is present.

6 papers put into perspective

1. A nerve reflex opens the lung’s vascular barrier
2. An adjustable doorway for folded proteins
3. Engineered immune cells need reinforcements
4. A hemorrhagic fever virus depends on host entry receptors

1. astro-ph.EPTwo Isolated Microlensing Events Near the Upper Shore of Einstein DesertQiyue Qian, Weicheng Zang, Yoon-Hyun Ryu, Takahiro Sumi, Andrzej Udalski, Hongj…

   The authors analyzed two microlensing events that may have been caused by isolated giant planets or brown dwarfs, near a range where such objects appear unusually scarce. Comparing isolated objects with planets that orbit stars suggests the gap may be …

2. astro-ph.EPGravitational Capture of Large Interstellar Planetesimals by Collapsing Prestellar CoresRichard Anderson, Kedron Silsbee

   This study modeled whether wandering space rocks can be pulled into a star system as the cloud that forms a star collapses. The total captured material is small, but the largest captured bodies might grow by gathering material in the …

3. astro-ph.EPHD 210058 b and BD+37 4838 b: A precessing eccentric hot Jupiter and a misaligned substellar companion around…Z. Balkoova, J. Zak, M. Skarka, M. C. Johnson, A. W. Mann, M. G. Barber et al.

   The authors used space-telescope observations and stellar spectra to test two possible companions orbiting fast-spinning A-type stars and measure how their orbits are tilted relative to the stars. One is a massive hot Jupiter whose orbit appears to precess, while …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

New preprints examine what forest treatments protect, how parasites silence collective defenses, and what clocks, comet dust and weather models can reveal about a changing world.

5 papers put into perspective

1. Saving trees without restoring a fire-adapted forest
2. A parasitoid cuts the alarm line
3. Interstellar dust with little sign of heating
4. Clocks follow the changing pull of the tides

1. math.OCPorteous Meets Walsh: Counting Critical Points for $\mathcal{H}_2$-Norm Model Order Reduction Using Algebraic…Sibren Lagauw, Leonie Kayser, Bart De Moor

   The authors use tools from algebra to count the possible solutions of equations that arise when simplifying a system while preserving its important behavior. Their result gives an exact count under stated generic conditions, helping researchers understand how many candidate …

2. math.OCCostate Estimation and Covector Mapping for Bernstein Polynomial Direct Methods in Optimal ControlVenanzio Cichella, Isaac Kaminer, Claire Walton, Naira Hovakimyan, Antonio Pasc…

   The paper develops a way to approximate continuous-time control problems using Bernstein polynomials while also estimating the quantities that describe how constraints affect the optimal solution. It provides theoretical support for using this approach and shows how to obtain the …

3. math.OCA Preconditioned Semismooth Newton Method for Box-Constrained Elliptic Optimal Control Problems with Random C…Zhendong Li, Akwum Onwunta, Hailing Wang

   The authors develop a method for solving a control problem governed by an equation with random inputs and limits on how much the control can vary. Their tests show the method remains efficient as the computational grid and number of …

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

New preprints revisit black-hole thermodynamics, geometric efficiency, numerical algorithms and the limits of what simple models can represent.

6 papers put into perspective

1. An extremal black hole, reached through vacuum
2. The geometry of enclosing space
3. A speed limit for finding roots
4. A community can fail despite reassuring interaction signs

1. cs.SEVerusWeave: A Benchmark for Proof Repair in Concurrent Verus ProgramsPedro Ribeiro, Martim Afonso, Andre Vasconcelos, Joao F. Ferreira

   VerusWeave is a collection of tasks for testing whether coding agents can repair formal proofs in concurrent Rust programs. Initial tests show agents often solve small tasks but struggle more with repairs spanning an entire module.

2. cs.SEClaude for Excel is Transformative for Basic Spreadsheet Modeling and AnalysisThomas A. Grossman, Min-San Serena Hsu

   The authors tested an AI spreadsheet add-in on five partly structured business problems, assessing its models, spreadsheet construction, analysis, and explanations. They report that it produced detailed scenario analyses and reasonable plain-language insights from simple prompts, suggesting it could change …

3. cs.DSFastHeapDict: Permanent Slot Indexing for Efficient Decrease-Key Operations in Indexed Priority QueuesHojjat T. Goudarzi, Arash Torabi Goodarzi, Mohammad Amir Eshraghi

   FastHeapDict is a priority queue designed to update item priorities efficiently without repeatedly searching for each item. Tests using shortest-path workloads found that it outperformed the compared alternatives in both Python and C++.

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

Among this week’s computing preprints, progress comes from reorganizing calculations, fitting speech recognition onto a microcontroller, and testing whether elaborate systems actually earn their complexity.

6 papers put into perspective

1. A famous coloring problem gets a faster solution
2. Counting a disordered system up to a critical boundary
3. Speech recognition without a neural accelerator
4. A newer GPU is not automatically a better purchase

1. econ.EMWhen Does $N$ Buy Precision? Heterogeneous Responses to Aggregate Shocks in Micro PanelsMahmut Ablay, Mengshan Xu, Endong Wang

   The paper compares two ways to estimate how firms respond differently to economy-wide shocks: one can be more precise when its assumptions are right, while the other is more robust when responses vary in complex ways. It also proposes a …

2. econ.GNDynamic investment in disaster preparedness under recurrent and catastrophic risksTomoki Ishikura, Muneta Yokomatsu

   The study develops a model for deciding when to invest in disaster preparedness as risks change over time and preparedness wears down. Its simulations show that spending less can still leave greater preparedness, and that similar average losses can hide …

3. econ.GNAccessibility to Higher Education and Inter-regional MobilitySe-il Mun, Shun Fujita, Lei Qin

   The paper models how students choose colleges when they must weigh education quality, fees, entrance-exam effort, and moving away from home. Using Japanese data, it estimates how the regional distribution of colleges affects access and student welfare.

Every weekday, the new papers in your categories, each with a short summary. See a whole digest →

New preprints examine maternity leave, agriculture’s origins, policy evaluation, high-speed trading and bank capital—and show why the route from data to conclusions matters.

5 papers put into perspective

1. Paid maternity leave and the limits of a policy cutoff
2. Why farming began—and why it spread
3. A feared statistical problem meets a large empirical check
4. What trading speed buys in China