20 papers · ranked by Valyu relevance
Alejandro Osses, Azal Le Bagousse, Léo Varnet
The fastACI toolbox provides a compilation of tools for collecting and analyzing data from auditory reverse-correlation experiments. These experiments involve behavioral listening tasks including one or more target sounds presented with some random fluctuation, typically in the form of additive background noise. In…
Jane A. Gargano, Abigail Rice, Divya A. Chari, Benjamin Parrell + 1 more
Reverse correlation is a widely-used and well-established method for probing latent perceptual representations in which subjects render subjective preference responses to ambiguous stimuli. Stimuli are purposefully designed to have no direct relationship with the target representation (e.g., they are…
Crista Kuuramo, Ilmari Kurki
For humans, storing facial identities in visual working memory (VWM) is crucial. Despite vast research on VWM, it is not well known how face identity and physical features (e.g., eyes) are encoded in VWM representations. Moreover, while it is widely assumed that VWM face representations encode efficiently the subtle…
Sangwoo Shin, BumJun Kim, Kyelim Lee, Moongyu Jeon + 1 more
Autoregressive language models (ARMs) suffer from the reversal curse: after learning "A is B," they often fail on the reverse query "B is A." Masked diffusion-based language models (MDMs) exhibit this failure in a much weaker form, but the underlying reason has remained unclear. A common explanation attributes this…
Virginia Iannibelli, Isabella Caranzano, Giovanni Birolo, Cesare Rollo + 5 more
Codon usage bias is a central record of mutation, selection, drift, and translational constraints, but it is usually treated separately from generalized Chargaff symmetry, the tendency for words and their reverse complements to occur at similar frequencies in long DNA sequences. Here we ask whether codon usage contains…
Mouad El Bouchattaoui
Inferring causal direction from purely observational bivariate data is fragile: many methods commit to a direction even in ambiguous or near non-identifiable regimes. We propose Topological Residual Asymmetry (TRA), a geometry-based criterion for additive-noise models. TRA compares the shapes of two cross-fitted…
Alexander von Eye, Wolfgang Wiedermann
This article proposes using formal theory to specify models for confirmatory Configural Frequency Analysis (CFA). Statement calculus is used from the perspective of relevance logic. Under this perspective, patterns are identified that are ‘true’, that is, that are conform with a priori made statements. Among the true…
Yangfan Chai, Runqing Zhang, Qian Wang, Jiawei Pan + 5 more
Sap flow serves as the primary carrier for water, nutrients, and signaling molecules, playing a crucial role in fruit development by delivering these essential constituents to the fruit. While the efflux of sap from fruit to other organs (termed reverse sap flow) has been observed in plants, its underlying mechanisms…
Authors not listed
Gibbs’ paradox—the apparent discontinuity in mixing entropy for gases of varying similarity and the seeming reversibility of mixing-separation cycles—has resisted fully satisfactory resolution for 150 years. We present a solution based on categorical state theory, which posits that physical con f igurations are…
M. Erol Keskin, Tevfik Aslanbaş
Water is an indispensable resource essential for sustaining life on Earth. Sustainable access to safe drinking and utility water is essential for human survival. Considering the potential of water on the earth and the rapid increase in the population, saving the existing potential water gains importance. The behavior…
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Predicting which molecular systems require post-Hartree-Fock treatment remains a fundamental challenge in quantum chemistry. We introduce Fbond, a universal descriptor that quantifies electron correlation strength through the product of HOMO-LUMO gap and maximum single-orbital entanglement entropy. Validation across…
Nick Merrill, Jaeho Lee, Ezra Karger
We document inverse scaling in LLMs on forecasting problems whose underlying time series exhibit superlinear growth and tail risk of regime change, a structure common in finance and epidemiology. On these tasks, more capable models produce worse distributional forecasts. The pattern appears on ForecastBench-Sim…
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Synthetic accessibility is a key issue in the current compound generation. Unlike conventional approaches that assess synthetic accessibility after compound generation, the fragment-based method proposed in this study links the fragments in the reverse direction of the retrosynthesis analysis guaranteeing the synthetic…
Gabriel Kennedy, Alejandro Ochoa
In studies of assortative mating, similarity between variables measured in parents is often quantified using correlation. The order of the parents within any given pair can be arbitrary in these applications, but common correlation estimators are not robust to reordering within pairs. These unordered variable pairs are…
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This study reports the formation of gold nanoparticle (AuNP) films by electrochemical assembly at the polarized water | trifluorotoluene interface (ITIES) and their use as SERS substrates whose activity can be tuned by the interfacial potential. Using a four-electrode configuration, cyclic modulation of the interfacial…
Joris Mulder, Julius Pfadt, Eric-Jan Wagenmakers
Correlation coefficients play a central role in scientific research to quantify the (linear) association between certain key variables of interest. Currently, hypothesis testing of correlation coefficients, such as whether a correlation equals zero or whether two correlations are equal, is mainly done using classical p…
Thiago B. Murari, José Fernando F. Mendes, Hernane B. B. Pereira, Marcelo A. Moret
The multifractal detrended cross-correlation coefficient $ρ_q(n)$ is widely used to investigate scale-dependent interactions, but its application to negative fluctuation orders is affected by numerical instabilities, unbounded values, and interpretational difficulties. We propose a Signed Multifractal Detrended…
Jörn Diedrichsen, Xianglong Fu, Mahdiyar Shahbazi, Simon Bonner
Many functional magnetic resonance imaging (fMRI) studies conclude that two conditions engage “overlapping, yet partly distinct” patterns of activation. Yet, there is currently no commonly accepted method for determining the extent of this overlap. While correlations between activation patterns can serve as a measure…
Liu, Peng
Financial networks based on Pearson correlations have been intensively studied. However, previous studies may have led to misleading and catastrophic results because of several critical shortcomings of the Pearson correlation. The local Gaussian correlation coefficient, a new measurement of statistical dependence…
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Effective crystal structure prediction (CSP) relies on thorough exploration of potential energy surfaces (PES). For this reason, molecular CSP has historically focussed on simple crystals with a single molecule in the asymmetric unit. Increasing the number of molecules in the asymmetric unit increases the degrees of…