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334 scholarly results for stat.OT
Scholar iON Academic Synthesis
The collection of scholarly papers spans diverse fields, highlighting advancements in lie detection, infectious disease modeling, memory system design, and bioinformatics. "Liars' Bench" introduces a robust testbed for evaluating lie detection techniques in language models, revealing their current limitations and emphasizing the need for improved methods to handle varied and complex scenarios. The study on infectious disease modeling enhances the classical SIR model by incorporating time-dependent parameters and diffusivity, offering a nuanced understanding of COVID-19's spread in Michigan through advanced system inference techniques. Meanwhile, the design of PTVD-SHAM explores a novel super-helical memory system, emphasizing quantum computing and advanced material applications for efficient data storage. Lastly, "Introduction to Bioinformatics" underscores the interdisciplinary nature of bioinformatics, bridging genomics, biotechnology, and information technology to manage and interpret complex biological data. Collectively, these papers underscore the significance of interdisciplinary approaches and technological innovation in addressing complex challenges across various domains.
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arxiv.org Β· scholarly article
Liars' Bench: Evaluating Lie Detectors for Language Models
Kieron Kretschmar; Walter Laurito; Sharan Maiya; Samuel Marks
2025 arXiv Open Access
Prior work has introduced techniques for detecting when large language models (LLMs) lie, that is, generate statements they believe are false. However, these techniques are typically validated in narrow settings that do not capture the diverse lies LLMs can generate. We introduce LIARS' BENCH, a testbed consisting of 72,863 examples of lies and honest responses generated by four open-weight models across seven datasets. Our settings capture qualitatively different types of lies and vary along two dimensions: the model's reason for lying and the object of belief targeted by the lie. Evaluating three black- and white-box lie detection techniques on LIARS' BENCH, we find that existing techniques systematically fail to identify certain types of lies, especially in settings where it's not possible to determine whether the model lied from the transcript alone. Overall, LIARS' BENCH reveals limitations in prior techniques and provides a practical testbed for guiding progress in lie detection.
arxiv.org Β· scholarly article
System inference for the spatio-temporal evolution of infectious diseases: Michigan in the time of COVID-19
Zhenlin Wang; Xiaoxuan Zhang; Gregory Teichert; Mariana Carrasco-Teja; Krishna Garikipati
2020 arXiv Open Access
We extend the classical SIR model of infectious disease spread to account for time dependence in the parameters, which also include diffusivities. The temporal dependence accounts for the changing characteristics of testing, quarantine and treatment protocols, while diffusivity incorporates a mobile population. This model has been applied to data on the evolution of the COVID-19 pandemic in the US state of Michigan. For system inference, we use recent advances; specifically our framework for Variational System Identification (Wang et al., Comp. Meth. App. Mech. Eng., 356, 44-74, 2019; arXiv:2001.04816 [cs.CE]) as well as Bayesian machine learning methods.
arxiv.org Β· scholarly article
Logic, Design & Organization of PTVD-SHAM; A Parallel Time Varying & Data Super-helical Access Memory
P. B. Alipour
2007 arXiv Open Access
This paper encompasses a super helical memory system's design, 'Boolean logic & image-logic' as a theoretical concept of an invention-model to 'store time-data' in terms of anticipating the best memory location ever for data/time. A waterfall effect is deemed to assist the process of potential-difference output-switch into diverse logic states in quantum dot computational methods via utilizing coiled carbon nanotubes (CCNTs) and carbon nanotube field effect transistors (CNFETs). A 'quantum confinement' is thus derived for a flow of particles in a categorized quantum well substrate with a normalized capacitance rectifying high B-field flux into electromagnetic induction. Multi-access of coherent sequences of 'qubit addressing' is gained in any magnitude as pre-defined for the orientation of array displacement. Briefly, Gaussian curvature of k<0 is debated in aim of specifying the 2D electron gas characteristics in scenarios where data is stored in short intervals versus long ones e.g. when k'>(k<0) for greater CCNT diameters, space-time continuum is folded by chance for the particle. This benefits from Maxwell-Lorentz theory in Minkowski's space-time viewpoint alike to crystal oscillators for precise data timing purposes and radar systems e.g., time varying self-clocking devices in diverse geographic locations. This application could also be optional for data depository versus extraction, in the best supercomputer system's locations, autonomously. For best performance in minimizing current limiting mechanisms including electromigration, a multilevel metallization and implant process forming elevated sources/drains for the circuit's staircase pyramidal construction, is discussed accordingly.
arxiv.org Β· scholarly article
Introduction to Bioinformatics
Sabu M. Thampi
2009 arXiv Open Access
Bioinformatics is a new discipline that addresses the need to manage and interpret the data that in the past decade was massively generated by genomic research. This discipline represents the convergence of genomics, biotechnology and information technology, and encompasses analysis and interpretation of data, modeling of biological phenomena, and development of algorithms and statistics. This article presents an introduction to bioinformatics
arxiv.org Β· scholarly article
Slicing of Constraint Logic Programs
Gyongyi Szilagyi; Tibor Gyimothy; Jan Maluszynski
2000 arXiv Open Access
Slicing is a program analysis technique originally developed for imperative languages. It facilitates understanding of data flow and debugging. This paper discusses slicing of Constraint Logic Programs. Constraint Logic Programming (CLP) is an emerging software technology with a growing number of applications. Data flow in constraint programs is not explicit, and for this reason the concepts of slice and the slicing techniques of imperative languages are not directly applicable. This paper formulates declarative notions of slice suitable for CLP. They provide a basis for defining slicing techniques (both dynamic and static) based on variable sharing. The techniques are further extended by using groundness information. A prototype dynamic slicer of CLP programs implementing the presented ideas is briefly described together with the results of some slicing experiments.
arxiv.org Β· scholarly article
Results on Three predictions on July 2012 Federal Elections in Mexico based on past regularities
H. HernΓ‘ndez-SaldaΓ±a
2012 arXiv Open Access DOI: 10.1371/journal.pone.0082584
The Presidential Election in Mexico of July 2012 has been the third time that PREP, Previous Electoral Results Program works. PREP gives voting outcomes based in electoral certificates of each polling station that arrive to capture centers. In previous ones, some statistical regularities had been observed, three of them were selected to make predictions and were published in \texttt{arXiv:1207.0078 [physics.soc-ph]}. Using the database made public in July 2012, two of the predictions were completely fulfilled, while, the third one was measured and confirmed using the database obtained upon request to the electoral authorities. The first two predictions confirmed by actual measures are: (ii) The Partido Revolucionario Institucional, PRI, is a sprinter and has a better performance in polling stations arriving late to capture centers during the process. (iii) Distribution of vote of this party is well described by a smooth function named a Daisy model. A Gamma distribution, but compatible with a Daisy model, fits the distribution as well. The third prediction confirms that {\it errare humanum est}, since the error distributions of all the self-consistency variables appeared as a central power law with lateral lobes as in 2000 and 2006 electoral processes. The three measured regularities appeared no matter the political environment.
arxiv.org Β· scholarly article
A portrait of the collaboration network in quantum information
SamuraΓ­ Brito; Rute Oliveira; Raabe Oliveira; Rafael Chaves
2021 arXiv Open Access
From its inception at the beginning of the eighties, with milestone results and ideas such as quantum simulation, the no-cloning theorem, and quantum computers, quantum information has established itself over the next decades, being nowadays a fast-developing field at the interface between fundamental science and a variety of promising technologies. In this work we aim to offer a portrait of this dynamic field, analyzing the statistical properties of the network of collaborations among its researchers. Using the quant-ph section from the arXiv as our database, we draw several conclusions on its properties. In particular, we show that the quantum information network of collaborations displays the small-world property, is very aggregated and assortative, being also in line with Newman's findings as for the presence of hubs and the Lotka's law regarding the average number of publications per author.
arxiv.org Β· scholarly article
Is it possible to suspend the spread of an epidemic infection? The dynamic Monte Carlo approach
Gennadiy Burlak
2020 arXiv Open Access
We study a dynamics of the epidemiological infection spreading at different values of the risk factor $Ξ²$ (a control parameter) with the using of dynamic Monte Carlo approach (DMC). In our toy model, the infection transmits due to contacts of randomly moving individuals. We show that the behavior of recovereds critically depends on the $Ξ²$ value. For sub-critical values $Ξ²<Ξ²_{c}\sim 0.6$, the number of infected cases asymptotically converges to zero, such that for a moderate risk factor the infection may disappear with time. Our simulations shown that over time, the properties of such a system asymptotically become close to the critical transition in 2D percolation system. We also analyzed an extended system, which includes two additional parameters: the limits of taking on/off quarantine state. It is found that the early quarantine off does result in the irregular (with positive Lyapunov exponent) oscillatory dynamics of infection. If the lower limit of the quarantine off is small enough, the recovery dynamics acquirers a characteristic nonmonotonic shape with several damped peaks. The dynamics of infection spreading in case of the individuals with immunity is studied too.
arxiv.org Β· scholarly article
Multi-scale description of pedestrian collective dynamics with port-Hamiltonian systems
Antoine Tordeux; Claudia Totzeck
2022 arXiv Open Access
Port-Hamiltonian systems (PHS) theory is a recent but already well-established modelling approach for non-linear physical systems. Some studies have shown lately that PHS frameworks are relevant for modelling and control of swarm and multi-agent systems. We identify in this contribution a general class of microscopic force-based pedestrian models that can be formulated as a port-Hamiltonian system. The pedestrian PHS has linear structure and dissipation components. Non-linear effects come from isotropic pedestrian interactions. Simulation results on a torus with disordered initial states show that the port-Hamiltonian pedestrian model can exhibit different types of dynamics. They range from relaxed speed models with no interaction, dynamical billiards, or crystallization dynamics to realistic pedestrian collective behaviors, including lane and strip formation for counter and crossing flow. The port-Hamiltonian framework is a natural multiscale description of pedestrian dynamics as the Hamiltonian turns out to be a generic order parameter that allows us to identify specific behaviours of the dynamics from a macroscopic viewpoint. Particular cases even enable through energy balance to determine the Hamiltonian behavior without requiring the tedious computation of the microscopic dynamics. Using PHS theory, we systematically identify a critical threshold value for the Hamiltonian, which relies only on exogenous input and can be physically interpreted.
arxiv.org Β· scholarly article
The politics of physicists social models
Pablo Jensen
2019 arXiv Open Access DOI: 10.1016/j.crhy.2019.05.016
I give an overview of the topic of this special issue, the applications of (statistical) physics to social sciences at large. I discuss several examples of simple social models put forward by physicists and discuss their interest. I argue that while they may be conceptually useful to correct our intuitive models of social mechanisms, their relevance for real social systems is moot. What is more, since physicists have always needed to tame the world inside laboratories to make their models relevant, I suggest that social modeling might be linked to human taming, a smashing political project.