Tootfinder

PrompTHis: Visualizing the Process and Influence of Prompt Editing during Text-to-Image Creation
Yuhan Guo, Hanning Shao, Can Liu, Kai Xu, Xiaoru Yuan
https://arxiv.org/abs/2403.09615

PrompTHis: Visualizing the Process and Influence of Prompt Editing during Text-to-Image Creation
Generative text-to-image models, which allow users to create appealing images through a text prompt, have seen a dramatic increase in popularity in recent years. However, most users have a limited understanding of how such models work and it often requires many trials and errors to achieve satisfactory results. The prompt history contains a wealth of information that could provide users with insights into what have been explored and how the prompt changes impact the output image, yet little res…

Allan Greer on historians and the recent and impending changes at Library and Archives Canada. @…
LAC's "Vision 2030 expresses eagerness to attract more uninitiated users, but it has little to say about how they will 'connect with their history and culture.' It is as though archival materials were unproblematic and transparent and as though …

This is the best source of stock splits, delistings, and other corporate actions that I have ever seen: https://stockanalysis.com/actions/
Makes me wonder where do they get the data for it. I have tried perusing the web a bit and just can't find one conclusive answer.

Corporate Actions List - Recent and Historical - Stock Analysis
A comprehensive list of recent and historical corporate actions and stock changes for companies listed on the US stock market.

This https://arxiv.org/abs/2309.17145 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csHC_…

Staying at the Roach Motel: Cross-Country Analysis of Manipulative Subscription and Cancellation Flows
Subscribing to online services is typically a straightforward process, but cancelling them can be arduous and confusing -- causing many to resign and continue paying for services they no longer use. Making the cancellation intentionally difficult is recognized as a dark pattern called Roach Motel. This paper characterizes the subscription and cancellation flows of popular news websites from four different countries, and discusses them in the context of recent regulatory changes. We study the de…

This https://arxiv.org/abs/2308.03553 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Palm problems arising in BAR approach and its applications
We consider Palm distributions arising in a Markov process with time homogeneous transitions which is jointly stationary with multiple point processes. Motivated by a BAR approach studied in the recent paper Braverman, Dai and Miyazawa (2023}, we are interested in two problems; when this Markov process inherits the same Markov structure under the Palm distributions, and how the state changes at counting instants of the point processes can be handled to derive stationary equations when there are…

Latest Evolution of the X-Ray Remnant of SN 1987A: Beyond the Inner Ring
Aravind P. Ravi, Sangwook Park, Svetozar A. Zhekov, Salvatore Orlando, Marco Miceli, Kari A. Frank, Patrick S. Broos, David N. Burrows
https://arxiv.org/abs/2403.07990

Latest Evolution of the X-Ray Remnant of SN 1987A: Beyond the Inner Ring
Based on our Chandra imaging-spectroscopic observations, we present the latest evolution of the X-ray remnant of SN 1987A. Recent changes in the electron temperatures and volume emission measures suggest that the blast wave in SN 1987A is moving out of the dense inner ring structure, also called the equatorial ring (ER). The 0.5-2.0 keV X-ray light curve shows a linearly declining trend (by $\sim$4.5 % yr$^{-1}$) between 2016 and 2020, as the blast wave heats the hitherto unknown circumstellar …

Professors says recent changes have 'seriously impaired, if not irreparably damaged' the function of the school.
Professors group sanctions New College of Florida citing 'aggressively ideological agenda'
The American Association of University

Professors group sanctions New College of Florida citing 'aggressively ideological agenda'
The American Association of University Professors says recent changes have 'seriously impaired, if not irreparably damaged' the function of the school.

This https://arxiv.org/abs/2402.16430 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCR_…

Improving behavior based authentication against adversarial attack using XAI
In recent years, machine learning models, especially deep neural networks, have been widely used for classification tasks in the security domain. However, these models have been shown to be vulnerable to adversarial manipulation: small changes learned by an adversarial attack model, when applied to the input, can cause significant changes in the output. Most research on adversarial attacks and corresponding defense methods focuses only on scenarios where adversarial samples are directly generat…

A secular solar system resonance that disrupts the dominant cycle in Earth's orbital eccentricity (g2-g5): Implications for astrochronology
Richard E. Zeebe, Margriet L. Lantink
https://arxiv.org/abs/2403.09332

A secular solar system resonance that disrupts the dominant cycle in Earth's orbital eccentricity (g2-g5): Implications for astrochronology
The planets' gravitational interaction causes rhythmic changes in Earth's orbital parameters (also called Milanković cycles), which have powerful applications in geology and astrochronology. For instance, the primary astronomical eccentricity cycle due to the secular frequency term (g2-g5) (~405 kyr in the recent past) utilized in deep-time analyses is dominated by Venus' and Jupiter's orbits, aka long eccentricity cycle. The widely accepted and long-held view is that (g2-g5) was practically s…

This is the best source of stock splits, delistings, and other corporate actions that I have ever seen: https://stockanalysis.com/actions/
Makes me wonder where do they get the data for it. I have tried perusing the web a bit and just can't find one conclusive answer.

Corporate Actions List - Recent and Historical - Stock Analysis
A comprehensive list of recent and historical corporate actions and stock changes for companies listed on the US stock market.

This https://arxiv.org/abs/2403.01644 has been replaced.
link: https://scholar.google.com/scholar?q=a

OccFusion: Multi-Sensor Fusion Framework for 3D Semantic Occupancy Prediction
A comprehensive understanding of 3D scenes is crucial in autonomous vehicles (AVs), and recent models for 3D semantic occupancy prediction have successfully addressed the challenge of describing real-world objects with varied shapes and classes. However, existing methods for 3D occupancy prediction heavily rely on surround-view camera images, making them susceptible to changes in lighting and weather conditions. This paper introduces OccFusion, a novel sensor fusion framework for predicting 3D …

Latest Evolution of the X-Ray Remnant of SN 1987A: Beyond the Inner Ring
Aravind P. Ravi, Sangwook Park, Svetozar A. Zhekov, Salvatore Orlando, Marco Miceli, Kari A. Frank, Patrick S. Broos, David N. Burrows
https://arxiv.org/abs/2403.07990

Latest Evolution of the X-Ray Remnant of SN 1987A: Beyond the Inner Ring
Based on our Chandra imaging-spectroscopic observations, we present the latest evolution of the X-ray remnant of SN 1987A. Recent changes in the electron temperatures and volume emission measures suggest that the blast wave in SN 1987A is moving out of the dense inner ring structure, also called the equatorial ring (ER). The 0.5-2.0 keV X-ray light curve shows a linearly declining trend (by $\sim$4.5 % yr$^{-1}$) between 2016 and 2020, as the blast wave heats the hitherto unknown circumstellar …

Really glad that @… refuses[1] to pick up changes for stable/longterm #Linux series (say 5.4.y), if they have not yet been applied to all newer series (e.g. 5.10.y, 5.15.y, …). This is crucial, as people otherwise would run into

As NFL quarterback carousel spins, which recent moves were upgrades and downgrades? https://theathletic.com/5359414/2024/03/22/nfl-quarterback-best-worst-changes/

As NFL quarterback carousel spins, which recent moves were upgrades and downgrades?
Twenty-one QBs, including Kirk Cousins, Russell Wilson and Justin Fields, have changed teams via trades or free agency since last month.

As NFL quarterback carousel spins, which recent moves were upgrades and downgrades? https://theathletic.com/5359414/2024/03/22/nfl-quarterback-best-worst-changes/

As NFL quarterback carousel spins, which recent moves were upgrades and downgrades?
Twenty-one QBs, including Kirk Cousins, Russell Wilson and Justin Fields, have changed teams via trades or free agency since last month.

This https://arxiv.org/abs/2310.06959 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csPL_…

Towards Proof Repair in Cubical Agda
Proofs in proof assistants like Coq can be brittle, breaking easily in response to changes in the terms and types those proofs depend on. To address this, recent work introduced an algorithm and tool in Coq to automatically repair broken proofs in response to changes that correspond to type equivalences. However, many changes remained out of the scope of this algorithm and tool -- especially changes in underlying behavior. We extend this proof repair algorithm so that it can express certain cha…

A Blueprint for Disaster: Humans Have Pushed Earth’s Freshwater Cycle to Breaking Point
https://scitechdaily.com/a-blueprint-for-disaster-humans-have-pushed-earths-freshwater-cycle-to-breaking-point/

A Blueprint for Disaster: Humans Have Pushed Earth’s Freshwater Cycle to Breaking Point
New research indicates that the worldwide freshwater cycle has undergone significant changes, moving well away from the conditions observed prior to industrialization. A recent study examining global freshwater resources reveals that human actions have significantly altered the planet’s freshwater

Maximizing network capacity, control and management in designing a Telemedicine network: a review and recent challenges
B. O. Sadiq, O. S. Zakariyya, M. D. Buhari, A. N. Shuaibu
https://arxiv.org/abs/2404.03284

Maximizing network capacity, control and management in designing a Telemedicine network: a review and recent challenges
Telemedicine networks have seen significant changes in their capacity, monitoring, management, and control framework during the previous decades. The evolution of network capacity, control, and management for Unmanned Aerial Vehicle (UAV) & Software-Defined Networks (SDN) as support to telemedicine, artificial intelligence in telemedicine networks, and capabilities in designing a telemedicine network with respect to its performance and customization is presented in this study, with a historical…

This https://arxiv.org/abs/2305.18584 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csSE_…

Coeditor: Leveraging Contextual Changes for Multi-round Code Auto-editing
Developers often dedicate significant time to maintaining and refactoring existing code. However, most prior work on generative models for code focuses solely on creating new code, overlooking the distinctive needs of editing existing code. In this work, we explore a multi-round code auto-editing setting, aiming to predict edits to a code region based on recent changes within the same codebase. Our model, Coeditor, is a fine-tuned language model specifically designed for code editing tasks. We …

🧩 Workplace Fragmentation Demands New Organizing Strategies
#labor

Workplace Fragmentation Demands New Organizing Strategies
In recent decades, structural changes in the US economy have dispersed workers across workplaces and geographic areas. Labor’s decline can’t be reversed without addressing this new reality.

recent changes

The user, a medicated cannabis-using veteran, is asking about the stance of the cybersecurity sector on cannabis use. They are aware of the restrictions for federal jobs but are curious about recent changes or policies in this sector. https://reddit.com/r/cybersecurity/comments/1bpdsrj/

Normal people: using one #map app.
Me: using up to five apps:
1. MapFactor Navigator — with offline maps based on #OpenStreetMap.
#Android

Nebraska governor says state ‘will not comply’ with new Title IX rules | The Hill
https://thehill.com/homenews/lgbtq/4642964-jim-pillen-nebraska-will-not-comply-new-title-ix-rules/

Nebraska governor says state ‘will not comply’ with new Title IX rules
Nebraska Gov. Jim Pillen (R) said his state “will not comply” with recent changes to Title IX by the Biden administration, The Nebraska Examiner reported Friday. “Protecting our kids and women’s athletics is my duty,” Pillen said in a Friday in a press release obtained by The Hill. “The president’s new rules threaten the safety…

This https://arxiv.org/abs/2312.14435 has been replaced.
initial toot: https://mastoxiv.page/@…

Thermodynamic and Stoichiometric Laws Ruling the Fates of Growing Systems
We delve into growing open chemical reaction systems (CRSs) characterized by autocatalytic reactions within a variable volume, which changes in response to these reactions. Understanding the thermodynamics of such systems is crucial for comprehending biological cells and constructing protocells, as it sheds light on the physical conditions necessary for their self-replication. Building on our recent work, where we developed a thermodynamic theory for growing CRSs featuring basic autocatalytic m…

This https://arxiv.org/abs/2310.06959 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csPL_…

Towards Proof Repair in Cubical Agda
Proofs in proof assistants like Coq can be brittle, breaking easily in response to changes in the terms and types those proofs depend on. To address this, recent work introduced an algorithm and tool in Coq to automatically repair broken proofs in response to changes that correspond to type equivalences. However, many changes remained out of the scope of this algorithm and tool -- especially changes in underlying behavior. We extend this proof repair algorithm so that it can express certain cha…

This https://arxiv.org/abs/2403.14221 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCL_…

Improving the Robustness of Large Language Models via Consistency Alignment
Large language models (LLMs) have shown tremendous success in following user instructions and generating helpful responses. Nevertheless, their robustness is still far from optimal, as they may generate significantly inconsistent responses due to minor changes in the verbalized instructions. Recent literature has explored this inconsistency issue, highlighting the importance of continued improvement in the robustness of response generation. However, systematic analysis and solutions are still l…

Longitudinal Mammogram Risk Prediction
Batuhan K. Karaman, Katerina Dodelzon, Gozde B. Akar, Mert R. Sabuncu
https://arxiv.org/abs/2404.19083 https://arxiv.org/pdf/2404.19083
arXiv:2404.19083v1 Announce Type: new
Abstract: Breast cancer is one of the leading causes of mortality among women worldwide. Early detection and risk assessment play a crucial role in improving survival rates. Therefore, annual or biennial mammograms are often recommended for screening in high-risk groups. Mammograms are typically interpreted by expert radiologists based on the Breast Imaging Reporting and Data System (BI-RADS), which provides a uniform way to describe findings and categorizes them to indicate the level of concern for breast cancer. Recently, machine learning (ML) and computational approaches have been developed to automate and improve the interpretation of mammograms. However, both BI-RADS and the ML-based methods focus on the analysis of data from the present and sometimes the most recent prior visit. While it is clear that temporal changes in image features of the longitudinal scans should carry value for quantifying breast cancer risk, no prior work has conducted a systematic study of this. In this paper, we extend a state-of-the-art ML model to ingest an arbitrary number of longitudinal mammograms and predict future breast cancer risk. On a large-scale dataset, we demonstrate that our model, LoMaR, achieves state-of-the-art performance when presented with only the present mammogram. Furthermore, we use LoMaR to characterize the predictive value of prior visits. Our results show that longer histories (e.g., up to four prior annual mammograms) can significantly boost the accuracy of predicting future breast cancer risk, particularly beyond the short-term. Our code and model weights are available at https://github.com/batuhankmkaraman/LoMaR.

Tropical cyclone genesis potential using a ventilated potential intensity
Daniel R Chavas, Suzana J Camargo, Michael K Tippett
https://arxiv.org/abs/2404.01572

Tropical cyclone genesis potential using a ventilated potential intensity
Genesis potential indices (GPIs) are widely used to understand the climatology of tropical cyclones (TCs). However, the sign of projected future changes depends on how they incorporate environmental moisture. Recent theory combines potential intensity and mid-tropospheric moisture into a single quantity called the ventilated potential intensity, which removes this ambiguity. This work proposes a new GPI ($GPI_v$) that is proportional to the product of the ventilated potential intensity and the …

Mayo: Patriots' changes not a snipe at Belichick https://www.espn.com/nfl/story/_/id/39616179/jerod-mayo-no-shots-belichick-patriots-shift-styles

Jerod Mayo - No shots at Belichick as Patriots shift styles - ESPN
Patriots coach Jerod Mayo says recent comments by him and director of scouting Eliot Wolf about creating a more open vibe around the team were not intended as a shot at Bill Belichick.

recent changes

Las Vegas Raiders signed undrafted free agent the rest of the league just forgot to draft https://www.yardbarker.com/nfl/articles/las_vegas_raiders_signed_undrafted_free_agent_the_rest_of…

Las Vegas Raiders signed undrafted free agent the rest of the league just forgot to draft
The Las Vegas Raiders, under the leadership of new general manager Tom Telesco, have made significant strides in their scouting process. Just take a look at their 2024 NFL Draft class-it's hard to deny that they're already surpassing the achievements of their previous regimes. This draft class, one of their best in recent memory, is a testament to the positive changes Telesco has brought, and they haven't even stepped on the field yet. By looking at where he got each player, the value he got th…

Improving behavior based authentication against adversarial attack using XAI
Dong Qin, George Amariucai, Daji Qiao, Yong Guan
https://arxiv.org/abs/2402.16430

Improving behavior based authentication against adversarial attack using XAI
In recent years, machine learning models, especially deep neural networks, have been widely used for classification tasks in the security domain. However, these models have been shown to be vulnerable to adversarial manipulation: small changes learned by an adversarial attack model, when applied to the input, can cause significant changes in the output. Most research on adversarial attacks and corresponding defense methods focuses only on scenarios where adversarial samples are directly generat…

On the incidence rate of RR Lyrae stars with non-radial modes
H. Netzel, V. Varga, R. Szabo, R. Smolec, E. Plachy
https://arxiv.org/abs/2404.14373 https://…

On the incidence rate of RR Lyrae stars with non-radial modes
Over the recent years, additional low-amplitude non-radial modes were detected in many of the first-overtone RR Lyrae stars. These non-radial modes form a characteristic period ratio with the dominant first-overtone mode of around 0.61. The incidence rate of this phenomenon changes from population to population. It is also strongly dependent on the quality of the analyzed data. Current models explaining these additional signals involve non-radial modes of degrees 8 and 9. Using synthetic horizo…

This https://arxiv.org/abs/2403.11739 has been replaced.
initial toot: https://mastoxiv.page/@a…

Tuning of the ultrafast demagnetization by ultrashort spin polarized currents in multi-sublattice ferrimagnets
Femtosecond laser pulses can be used to induce ultrafast changes of the magnetization in magnetic materials. Several microscopic mechanisms have been proposed to explain the observations, including the transport of ultrashort spin-polarized hot-electrons (SPHE). Such ultrafast spin currents find growing interest because of the recent challenges in ultrafast spintronics however they are only poorly characterized. One of the key challenges is to characterize the spin-polarized ultrafast currents …

The orientation dependence of cavity-modified chemistry
Marcus D. Liebenthal, A. Eugene DePrince III
https://arxiv.org/abs/2405.01676 https://

The orientation dependence of cavity-modified chemistry
Recent theoretical studies have explored how ultra-strong light--matter coupling can be used as a handle to control chemical transformations. {\em Ab initio} cavity quantum electrodynamics (QED) calculations demonstrate that large changes to reaction energies or barrier heights can be realized by coupling electronic degrees of freedom to vacuum fluctuations associated with an optical cavity mode, provided that large enough coupling strengths can be achieved. In many cases, the cavity effects di…

This https://arxiv.org/abs/2303.14312 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_ees…

GAN-RXA: A Practical Scalable Solution to Receiver-Agnostic Transmitter Fingerprinting
Radio frequency fingerprinting has been proposed for device identification. However, experimental studies also demonstrated its sensitivity to deployment changes. Recent works have addressed channel impacts by developing robust algorithms accounting for time and location variability, but the impacts of receiver impairments on transmitter fingerprints are yet to be solved. In this work, we investigate the receiver-agnostic transmitter fingerprinting problem, and propose a novel two-stage supervi…

Towards 6G Evolution: Three Enhancements, Three Innovations, and Three Major Challenges
Rohit Singh, Aryan Kaushik, Wonjae Shin, Marco Di Renzo, Vincenzo Sciancalepore, Doohwan Lee, Hirofumi Sasaki, Arman Shojaeifard, Octavia A. Dobre
https://arxiv.org/abs/2402.10781

Towards 6G Evolution: Three Enhancements, Three Innovations, and Three Major Challenges
Over the past few decades, wireless communication has witnessed remarkable growth, experiencing several transformative changes. This article aims to provide a comprehensive overview of wireless communication technologies, from the foundations to the recent wireless advances. Specifically, we take a neutral look at the state-of-the-art technologies for 5G and the ongoing evolutions towards 6G, reviewing the recommendations of the International Mobile Communication vision for 2030 (IMT-2030). We …

One-Shot Image Restoration
Deborah Pereg
https://arxiv.org/abs/2404.17426 https://arxiv.org/pdf/2404.17426

One-Shot Image Restoration
Image restoration, or inverse problems in image processing, has long been an extensively studied topic. In recent years supervised learning approaches have become a popular strategy attempting to tackle this task. Unfortunately, most supervised learning-based methods are highly demanding in terms of computational resources and training data (sample complexity). In addition, trained models are sensitive to domain changes, such as varying acquisition systems, signal sampling rates, resolution and…

This https://arxiv.org/abs/2310.00231 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_eco…

The Distributional Impact of Inflation in Pakistan: A Case Study of a New Price Focused Microsimulation Framework, PRICES
This paper develops a microsimulation model to simulate the distributional impact of price changes using Household Budget Survey data, income survey data and an Input Output Model. The primary purpose is to describe the model components. The secondary purpose is to demonstrate one component of the model by assessing the distributional and welfare impact of recent price changes in Pakistan. Over the period of November 2020 to November 2022, headline inflation 41.5 percent, with food and transpor…

Improving the Robustness of Large Language Models via Consistency Alignment
Zhao Yukun, Yan Lingyong, Sun Weiwei, Xing Guoliang, Wang Shuaiqiang, Meng Chong, Cheng Zhicong, Ren Zhaochun, Yin Dawei
https://arxiv.org/abs/2403.14221

Improving the Robustness of Large Language Models via Consistency Alignment
Large language models (LLMs) have shown tremendous success in following user instructions and generating helpful responses. Nevertheless, their robustness is still far from optimal, as they may generate significantly inconsistent responses due to minor changes in the verbalized instructions. Recent literature has explored this inconsistency issue, highlighting the importance of continued improvement in the robustness of response generation. However, systematic analysis and solutions are still l…

Can AI Understand Our Universe? Test of Fine-Tuning GPT by Astrophysical Data
Yu Wang, Shu-Rui Zhang, Aidin Momtaz, Rahim Moradi, Fatemeh Rastegarnia, Narek Sahakyan, Soroush Shakeri, Liang Li
https://arxiv.org/abs/2404.10019

Can AI Understand Our Universe? Test of Fine-Tuning GPT by Astrophysical Data
ChatGPT has been the most talked-about concept in recent months, captivating both professionals and the general public alike, and has sparked discussions about the changes that artificial intelligence (AI) will bring to the world. As physicists and astrophysicists, we are curious about if scientific data can be correctly analyzed by large language models (LLMs) and yield accurate physics. In this article, we fine-tune the generative pre-trained transformer (GPT) model by the astronomical data f…

GOP lawsuits over voting creates shadow war ahead of the election | AP News
https://apnews.com/article/rnc-trump-lawsuits-2024-election-voter-rolls-c7d8943dcac776103d948532f62f2a5c

GOP lawsuits over voting creates shadow war ahead of the election
As President Joe Biden and Donald Trump step up their campaigning in swing states, a quieter battle is taking place in the shadows of their White House rematch. The Republican National Committee, newly reconstituted under Trump, has filed lawsuits in nearly half the states targeting voting and various aspects of election administration. It's not a new strategy. But with recent internal changes at the RNC and added pressure from Trump, the legal maneuvering is expected to play an increasingly si…

This https://arxiv.org/abs/2309.16869 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csNI_…

Vidaptive: Efficient and Responsive Rate Control for Real-Time Video on Variable Networks
Real-time video streaming relies on rate control mechanisms to adapt video bitrate to network capacity while maintaining high utilization and low delay. However, the current video rate controllers, such as Google Congestion Control (GCC), are very slow to respond to network changes, leading to link under-utilization and latency spikes. While recent delay-based congestion control algorithms promise high efficiency and rapid adaptation to variable conditions, low-latency video applications have b…

Tracing the evolutionary pathways of dust and cold gas in high-z quiescent galaxies with SIMBA
G. Lorenzon, D. Donevski, K. Lisiecki, C. Lovell, M. Romano, D. Narayanan, R. Dav\'e, A. Man, K. E. Whitaker, A. Nanni, A. Long, M. M. Lee, Junais, K. Ma{\l}ek, G. Rodighiero, Q. Li
https://arxiv.org/abs/2404.10568

Tracing the evolutionary pathways of dust and cold gas in high-z quiescent galaxies with SIMBA
Recent discoveries of copious amounts of dust in quiescent galaxies (QGs) at high redshifts ($z\gtrsim 1-2$) challenge the conventional view that these objects have poor interstellar medium (ISM) in proportion to their stellar mass. We use the SIMBA cosmological simulation to explore the evolution of dust and cold gas content in QGs in relation to the quenching processes affecting them. We track the changes in the ISM dust abundance across the evolutionary history of QGs identified at $0 \lesss…

Combining Transformer based Deep Reinforcement Learning with Black-Litterman Model for Portfolio Optimization
Ruoyu SunXi'an Jiaotong-Liverpool University, School of Mathematics and Physics, Department of Financial and Actuarial Mathematics, Angelos StefanidisXi'an Jiaotong-Liverpool University Entrepreneur College, Zhengyong JiangXi'an Jiaotong-Liverpool University Entrepreneur College, Jionglong SuXi'an Jiaotong-Liverpool University Entrepreneur College

Combining Transformer based Deep Reinforcement Learning with Black-Litterman Model for Portfolio Optimization
As a model-free algorithm, deep reinforcement learning (DRL) agent learns and makes decisions by interacting with the environment in an unsupervised way. In recent years, DRL algorithms have been widely applied by scholars for portfolio optimization in consecutive trading periods, since the DRL agent can dynamically adapt to market changes and does not rely on the specification of the joint dynamics across the assets. However, typical DRL agents for portfolio optimization cannot learn a policy …

V2C-Long: Longitudinal Cortex Reconstruction with Spatiotemporal Correspondence
Fabian Bongratz, Jan Fecht, Anne-Marie Rickmann, Christian Wachinger
https://arxiv.org/abs/2402.17438

V2C-Long: Longitudinal Cortex Reconstruction with Spatiotemporal Correspondence
Reconstructing the cortex from longitudinal MRI is indispensable for analyzing morphological changes in the human brain. Despite the recent disruption of cortical surface reconstruction with deep learning, challenges arising from longitudinal data are still persistent. Especially the lack of strong spatiotemporal point correspondence hinders downstream analyses due to the introduced noise. To address this issue, we present V2C-Long, the first dedicated deep learning-based cortex reconstruction …

Reversible Jump Attack to Textual Classifiers with Modification Reduction
Mingze Ni, Zhensu Sun, Wei Liu
https://arxiv.org/abs/2403.14731 https://

Reversible Jump Attack to Textual Classifiers with Modification Reduction
Recent studies on adversarial examples expose vulnerabilities of natural language processing (NLP) models. Existing techniques for generating adversarial examples are typically driven by deterministic hierarchical rules that are agnostic to the optimal adversarial examples, a strategy that often results in adversarial samples with a suboptimal balance between magnitudes of changes and attack successes. To this end, in this research we propose two algorithms, Reversible Jump Attack (RJA) and Met…

Asymptotic spreading of predator-prey populations in a shifting environment
King-Yeung Lam, Ray Lee
https://arxiv.org/abs/2403.12249 https://

Asymptotic spreading of predator-prey populations in a shifting environment
Inspired by recent studies associating shifting temperature conditions with changes in the efficiency of predator species in converting their prey to offspring, we propose a predator-prey model of reaction-diffusion type to analyze the consequence of such effects on the population dynamics and spread of species. In the model, the predator conversion efficiency is represented by a spatially heterogeneous function depending on the variable $ξ=x-c_1t$ for some given $c_1>0$. Using the Hamilton-Ja…

This https://arxiv.org/abs/2403.11739 has been replaced.
initial toot: https://mastoxiv.page/@a…

Tuning of the ultrafast demagnetization by ultrashort spin polarized currents in multi-sublattice ferrimagnets
Femtosecond laser pulses can be used to induce ultrafast changes of the magnetization in magnetic materials. Several microscopic mechanisms have been proposed to explain the observations, including the transport of ultrashort spin-polarized hot-electrons (SPHE). Such ultrafast spin currents find growing interest because of the recent challenges in ultrafast spintronics however they are only poorly characterized. One of the key challenges is to characterize the spin-polarized ultrafast currents …

This https://arxiv.org/abs/2108.00588 has been replaced.
link: https://scholar.google.com/scholar?q=a

Measuring User Experience Inclusivity in Human-AI Interaction via Five User Problem-Solving Styles
Motivations: Recent research has emerged on generally how to improve AI product user experiences, but relatively little is known about an AI product's inclusivity. For example, what kinds of users does it support well, and who does it leave out? And what changes in the product would make it more inclusive? Objectives: Our overall objective is to help fill this gap, investigating what kinds of diverse users an AI product leaves out, and how to act upon that knowledge. To bring actionability to…

The transient event in NGC 1566 from 2017 to 2019. I. An eccentric accretion disk and a turbulent, disk-dominated broad-line region unveiled by double-peaked Ca II and O I lines
M. W. Ochmann, W. Kollatschny, M. A. Probst, E. Romero-Colmenero, D. A. H. Buckley, D. Chelouche, R. Chini, D. Grupe, M. Haas, S. Kaspi, S. Komossa, M. L. Parker, M. Santos-Lleo, N. Schartel, P. Famula

The transient event in NGC 1566 from 2017 to 2019. I. An eccentric accretion disk and a turbulent, disk-dominated broad-line region unveiled by double-peaked Ca II and O I lines
NGC 1566 is known for exhibiting recurrent outbursts, which are accompanied by changes in spectral type. The most recent transient event occurred from 2017 to 2019 and was reported to be accompanied by a change in Seyfert classification from Seyfert 1.8 to Seyfert 1.2. We analyze data from an optical spectroscopic variability campaign of NGC 1566 taken with the 9.2m SALT between July 2018 and October 2019 and supplement our data set with optical to near-infrared spectroscopic archival data take…

Combining Transformer based Deep Reinforcement Learning with Black-Litterman Model for Portfolio Optimization
Ruoyu SunXi'an Jiaotong-Liverpool University, School of Mathematics and Physics, Department of Financial and Actuarial Mathematics, Angelos StefanidisXi'an Jiaotong-Liverpool University Entrepreneur College, Zhengyong JiangXi'an Jiaotong-Liverpool University Entrepreneur College, Jionglong SuXi'an Jiaotong-Liverpool University Entrepreneur College

Combining Transformer based Deep Reinforcement Learning with Black-Litterman Model for Portfolio Optimization
As a model-free algorithm, deep reinforcement learning (DRL) agent learns and makes decisions by interacting with the environment in an unsupervised way. In recent years, DRL algorithms have been widely applied by scholars for portfolio optimization in consecutive trading periods, since the DRL agent can dynamically adapt to market changes and does not rely on the specification of the joint dynamics across the assets. However, typical DRL agents for portfolio optimization cannot learn a policy …

The Value, Benefits, and Concerns of Generative AI-Powered Assistance in Writing
Zhuoyan Li, Chen Liang, Jing Peng, Ming Yin
https://arxiv.org/abs/2403.12004

The Value, Benefits, and Concerns of Generative AI-Powered Assistance in Writing
Recent advances in generative AI technologies like large language models raise both excitement and concerns about the future of human-AI co-creation in writing. To unpack people's attitude towards and experience with generative AI-powered writing assistants, in this paper, we conduct an experiment to understand whether and how much value people attach to AI assistance, and how the incorporation of AI assistance in writing workflows changes people's writing perceptions and performance. Our resul…

This https://arxiv.org/abs/2403.11739 has been replaced.
initial toot: https://mastoxiv.page/@a…

Tuning of the ultrafast demagnetization by ultrashort spin polarized currents in multi-sublattice ferrimagnets
Femtosecond laser pulses can be used to induce ultrafast changes of the magnetization in magnetic materials. Several microscopic mechanisms have been proposed to explain the observations, including the transport of ultrashort spin-polarized hot-electrons (SPHE). Such ultrafast spin currents find growing interest because of the recent challenges in ultrafast spintronics however they are only poorly characterized. One of the key challenges is to characterize the spin-polarized ultrafast currents …

Earth : on-board satellite imagery compression leveraging historical earth observations
Kuntai Du, Yihua Cheng, Peder Olsen, Shadi Noghabi, Ranveer Chandra, Junchen Jiang
https://arxiv.org/abs/2403.11434

Earth+: on-board satellite imagery compression leveraging historical earth observations
With the increasing deployment of earth observation satellite constellations, the downlink (satellite-to-ground) capacity often limits the freshness, quality, and coverage of the imagery data available to applications on the ground. To overcome the downlink limitation, we present Earth+, a new satellite imagery compression system that, instead of compressing each image individually, pinpoints and downloads only recent imagery changes with respect to the history reference images. To minimize the…

The transient event in NGC 1566 from 2017 to 2019. I. An eccentric accretion disk and a turbulent, disk-dominated broad-line region unveiled by double-peaked Ca II and O I lines
M. W. Ochmann, W. Kollatschny, M. A. Probst, E. Romero-Colmenero, D. A. H. Buckley, D. Chelouche, R. Chini, D. Grupe, M. Haas, S. Kaspi, S. Komossa, M. L. Parker, M. Santos-Lleo, N. Schartel, P. Famula

The transient event in NGC 1566 from 2017 to 2019. I. An eccentric accretion disk and a turbulent, disk-dominated broad-line region unveiled by double-peaked Ca II and O I lines
NGC 1566 is known for exhibiting recurrent outbursts, which are accompanied by changes in spectral type. The most recent transient event occurred from 2017 to 2019 and was reported to be accompanied by a change in Seyfert classification from Seyfert 1.8 to Seyfert 1.2. We analyze data from an optical spectroscopic variability campaign of NGC 1566 taken with the 9.2m SALT between July 2018 and October 2019 and supplement our data set with optical to near-infrared spectroscopic archival data take…

The Value, Benefits, and Concerns of Generative AI-Powered Assistance in Writing
Zhuoyan Li, Chen Liang, Jing Peng, Ming Yin
https://arxiv.org/abs/2403.12004

The Value, Benefits, and Concerns of Generative AI-Powered Assistance in Writing
Recent advances in generative AI technologies like large language models raise both excitement and concerns about the future of human-AI co-creation in writing. To unpack people's attitude towards and experience with generative AI-powered writing assistants, in this paper, we conduct an experiment to understand whether and how much value people attach to AI assistance, and how the incorporation of AI assistance in writing workflows changes people's writing perceptions and performance. Our resul…

Asymptotic spreading of predator-prey populations in a shifting environment
King-Yeung Lam, Ray Lee
https://arxiv.org/abs/2403.12249 https://

Asymptotic spreading of predator-prey populations in a shifting environment
Inspired by recent studies associating shifting temperature conditions with changes in the efficiency of predator species in converting their prey to offspring, we propose a predator-prey model of reaction-diffusion type to analyze the consequence of such effects on the population dynamics and spread of species. In the model, the predator conversion efficiency is represented by a spatially heterogeneous function depending on the variable $ξ=x-c_1t$ for some given $c_1>0$. Using the Hamilton-Ja…

Earth : on-board satellite imagery compression leveraging historical earth observations
Kuntai Du, Yihua Cheng, Peder Olsen, Shadi Noghabi, Ranveer Chandra, Junchen Jiang
https://arxiv.org/abs/2403.11434

Earth+: on-board satellite imagery compression leveraging historical earth observations
With the increasing deployment of earth observation satellite constellations, the downlink (satellite-to-ground) capacity often limits the freshness, quality, and coverage of the imagery data available to applications on the ground. To overcome the downlink limitation, we present Earth+, a new satellite imagery compression system that, instead of compressing each image individually, pinpoints and downloads only recent imagery changes with respect to the history reference images. To minimize the…

This https://arxiv.org/abs/2402.12054 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

The transient event in NGC 1566 from 2017 to 2019 I. An eccentric accretion disk and a turbulent, disk-dominated broad-line region unveiled by double-peaked Ca II and O I lines
NGC 1566 is known for exhibiting recurrent outbursts, which are accompanied by changes in spectral type. The most recent transient event occurred from 2017 to 2019 and was reported to be accompanied by a change in Seyfert classification from Seyfert 1.8 to Seyfert 1.2. We analyze data from an optical spectroscopic variability campaign of NGC 1566 taken with the 9.2m SALT between July 2018 and October 2019 and supplement our data set with optical to near-infrared spectroscopic archival data take…