Hasil untuk "History of Great Britain"

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arXiv Open Access 2025
Exploiting Inaccurate Branch History in Side-Channel Attacks

Yuhui Zhu, Alessandro Biondi

Modern out-of-order CPUs heavily rely on speculative execution for performance optimization, with branch prediction serving as a cornerstone to minimize stalls and maximize efficiency. Whenever shared branch prediction resources lack proper isolation and sanitization methods, they may originate security vulnerabilities that expose sensitive data across different software contexts. This paper examines the fundamental components of modern Branch Prediction Units (BPUs) and investigates how resource sharing and contention affect two widely implemented but underdocumented features: Bias-Free Branch Prediction and Branch History Speculation. Our analysis demonstrates that these BPU features, while designed to enhance speculative execution efficiency through more accurate branch histories, can also introduce significant security risks. We show that these features can inadvertently modify the Branch History Buffer (BHB) update behavior and create new primitives that trigger malicious mis-speculations. This discovery exposes previously unknown cross-privilege attack surfaces for Branch History Injection (BHI). Based on these findings, we present three novel attack primitives: two Spectre attacks, namely Spectre-BSE and Spectre-BHS, and a cross-privilege control flow side-channel attack called BiasScope. Our research identifies corresponding patterns of vulnerable control flows and demonstrates exploitation on multiple processors. Finally, Chimera is presented: an attack demonstrator based on eBPF for a variant of Spectre-BHS that is capable of leaking kernel memory contents at 24,628 bit/s.

en cs.CR, cs.AR
DOAJ Open Access 2024
From Travel to Text: Reverends Wolff and Lansdell’s Missions to Bokhara

Irina Kantarbaeva-Bill

Nearly half a century separates the missions to Bokhara, centre of Islamic knowledge and culture in Central Asia, made by the two intrepid travellers and preachers Joseph Wolff (1795–1862) and Henry Lansdell (1841–1919): an important generational and geopolitical gap both in the development of the Victorian era and in the evolution of travel and travel writing. When Joseph Wolff saw Bokhara in 1843, Central Asia was at the peak of Anglo-Russian rivalry, an extremely dangerous and violent place where his two compatriots, British envoys Charles Stoddard and Arthur Conolly, lost their lives. Lansdell’s subsequent travels there in 1882 and 1888 discovered Bokhara subdued and pacified under Russian ‘civilising mission’. My paper will examine the strategies Wolff and Lansdell employed in writing their journeys to Central Asian sensitive border regions under the imperial security constraints of the moment. Their failure of self-censorship in fact erupts in concealed messages to certain sections of Victorian readership able to read between the lines, revealing the undisclosed and unsaid.

History of Great Britain
DOAJ Open Access 2024
Popularising Gardening: William Robinson and the Transmission of Garden Knowledge in the Illustrated Press

Aurélien Wasilewski

William Robinson (1838‒1935) was one of the most influential gardeners of the Victorian period. His publishing empire in particular can be considered as one of the strongest impetuses that fostered the self-definition of the British people as a nation of gardeners. Robinson’s journalistic work and editorial enterprises, rather than his landscape creations, have indeed contributed to the recording and cataloguing of a national tradition in the late 19th century by giving written and visual space—a voice and views—to an imagined community of gardeners. This paper will read William Robinson’s garden periodicals as a fertile ground from which a number of gardening practices, aesthetic forms and representations developed into shared customs. As such, gardening, gardens and landscapes emerged as an invaluable heritage to be preserved. I will first explain how his magazines opened a new space to a broader readership, a more diverse set of contributors, and even to other editors. This was accompanied by new ways of sharing and disseminating knowledge via text and illustration, which was largely co-constructed in popular gardening newspapers and magazines, further contributing to the creation of a sense of community among readers, and to the constitution of a shared ‘garden lore’. I will then ponder over the notion of collective horticultural heritage, which I suggest materialised in his publications out of the amalgamation of the myriad personal accounts, experiments, and views, and I will explain the extent to which this was attuned with modernity.

History of Great Britain
arXiv Open Access 2024
Encoding Version History Context for Better Code Representation

Huy Nguyen, Christoph Treude, Patanamon Thongtanunam

With the exponential growth of AI tools that generate source code, understanding software has become crucial. When developers comprehend a program, they may refer to additional contexts to look for information, e.g. program documentation or historical code versions. Therefore, we argue that encoding this additional contextual information could also benefit code representation for deep learning. Recent papers incorporate contextual data (e.g. call hierarchy) into vector representation to address program comprehension problems. This motivates further studies to explore additional contexts, such as version history, to enhance models' understanding of programs. That is, insights from version history enable recognition of patterns in code evolution over time, recurring issues, and the effectiveness of past solutions. Our paper presents preliminary evidence of the potential benefit of encoding contextual information from the version history to predict code clones and perform code classification. We experiment with two representative deep learning models, ASTNN and CodeBERT, to investigate whether combining additional contexts with different aggregations may benefit downstream activities. The experimental result affirms the positive impact of combining version history into source code representation in all scenarios; however, to ensure the technique performs consistently, we need to conduct a holistic investigation on a larger code base using different combinations of contexts, aggregation, and models. Therefore, we propose a research agenda aimed at exploring various aspects of encoding additional context to improve code representation and its optimal utilisation in specific situations.

arXiv Open Access 2024
How Should We Represent History in Interpretable Models of Clinical Policies?

Anton Matsson, Lena Stempfle, Yaochen Rao et al.

Modeling policies for sequential clinical decision-making based on observational data is useful for describing treatment practices, standardizing frequent patterns in treatment, and evaluating alternative policies. For each task, it is essential that the policy model is interpretable. Learning accurate models requires effectively capturing the state of a patient, either through sequence representation learning or carefully crafted summaries of their medical history. While recent work has favored the former, it remains a question as to how histories should best be represented for interpretable policy modeling. Focused on model fit, we systematically compare diverse approaches to summarizing patient history for interpretable modeling of clinical policies across four sequential decision-making tasks. We illustrate differences in the policies learned using various representations by breaking down evaluations by patient subgroups, critical states, and stages of treatment, highlighting challenges specific to common use cases. We find that interpretable sequence models using learned representations perform on par with black-box models across all tasks. Interpretable models using hand-crafted representations perform substantially worse when ignoring history entirely, but are made competitive by incorporating only a few aggregated and recent elements of patient history. The added benefits of using a richer representation are pronounced for subgroups and in specific use cases. This underscores the importance of evaluating policy models in the context of their intended use.

en cs.LG, cs.AI
arXiv Open Access 2024
NORMY: Non-Uniform History Modeling for Open Retrieval Conversational Question Answering

Muhammad Shihab Rashid, Jannat Ara Meem, Vagelis Hristidis

Open Retrieval Conversational Question Answering (OrConvQA) answers a question given a conversation as context and a document collection. A typical OrConvQA pipeline consists of three modules: a Retriever to retrieve relevant documents from the collection, a Reranker to rerank them given the question and the context, and a Reader to extract an answer span. The conversational turns can provide valuable context to answer the final query. State-of-the-art OrConvQA systems use the same history modeling for all three modules of the pipeline. We hypothesize this as suboptimal. Specifically, we argue that a broader context is needed in the first modules of the pipeline to not miss relevant documents, while a narrower context is needed in the last modules to identify the exact answer span. We propose NORMY, the first unsupervised non-uniform history modeling pipeline which generates the best conversational history for each module. We further propose a novel Retriever for NORMY, which employs keyphrase extraction on the conversation history, and leverages passages retrieved in previous turns as additional context. We also created a new dataset for OrConvQA, by expanding the doc2dial dataset. We implemented various state-of-the-art history modeling techniques and comprehensively evaluated them separately for each module of the pipeline on three datasets: OR-QUAC, our doc2dial extension, and ConvMix. Our extensive experiments show that NORMY outperforms the state-of-the-art in the individual modules and in the end-to-end system.

en cs.IR
arXiv Open Access 2024
Primordial Gravitational Wave Probes of Non-Standard Thermal Histories

Annet Konings, Mariia Marinichenko, Oleksii Mikulenko et al.

Primordial gravitational waves propagate almost unimpeded from the moment they are generated to the present epoch. Nevertheless, they are subject to convolution with a non-trivial transfer function. Within the standard thermal history, shifts in the temperature-redshift relation combine with damping effects by free streaming neutrinos to non-trivially process different wavelengths during radiation domination, with subsequently negligible effects at later times. Presuming a nearly scale invariant primordial spectrum, one obtains a characteristic late time spectrum, deviations from which would indicate departures from the standard thermal history. Given the paucity of probes of the early universe physics before nucleosynthesis, it is useful to classify how deviations from the standard thermal history of the early universe can be constrained from observations of the late time stochastic background. The late time spectral density has a plateau at high frequencies that can in principle be significantly enhanced or suppressed relative to the standard thermal history depending on the equation of state of the epoch intervening reheating and the terminal phase of radiation domination, imprinting additional features from bursts of entropy production, and additional damping at intermediate scales via anisotropic stress production. In this paper, we survey phenomenologically motivated scenarios of early matter domination, kination, and late time decaying particles as representative non-standard thermal histories, elaborate on their late time stochastic background, and discuss constraints on different model scenarios.

en astro-ph.CO, hep-ph
arXiv Open Access 2024
Hidden in Plain Sight: Exploring Chat History Tampering in Interactive Language Models

Cheng'an Wei, Yue Zhao, Yujia Gong et al.

Large Language Models (LLMs) such as ChatGPT and Llama have become prevalent in real-world applications, exhibiting impressive text generation performance. LLMs are fundamentally developed from a scenario where the input data remains static and unstructured. To behave interactively, LLM-based chat systems must integrate prior chat history as context into their inputs, following a pre-defined structure. However, LLMs cannot separate user inputs from context, enabling chat history tampering. This paper introduces a systematic methodology to inject user-supplied history into LLM conversations without any prior knowledge of the target model. The key is to utilize prompt templates that can well organize the messages to be injected, leading the target LLM to interpret them as genuine chat history. To automatically search for effective templates in a WebUI black-box setting, we propose the LLM-Guided Genetic Algorithm (LLMGA) that leverages an LLM to generate and iteratively optimize the templates. We apply the proposed method to popular real-world LLMs including ChatGPT and Llama-2/3. The results show that chat history tampering can enhance the malleability of the model's behavior over time and greatly influence the model output. For example, it can improve the success rate of disallowed response elicitation up to 97% on ChatGPT. Our findings provide insights into the challenges associated with the real-world deployment of interactive LLMs.

en cs.AI
DOAJ Open Access 2023
Walking in the Brontë Dining-room as Literary Influence

Kate Lawson

This essay analyses the Brontë sisters’ shared writing and walking practices in the Haworth parsonage dining-room in order to explore how communal indoor walking may have influenced the composition and content of the novels that were written there: Wuthering Heights, Agnes Grey, The Professor, Jane Eyre, The Tenant of Wildfell Hall, Shirley, and Villette. Employing the materialist theories of Thomas Rickert, Robert Douglas-Fairhurst, and Karen Barad, the essay explores how the complex web of the sisters’ everyday lived experiences could constitute literary influence. While indoor walking provides only one of many possible routes for such a materialist analysis of influence, the Brontës’ daily evening walks of approximately two hours in length are well documented and can act as a focal point for an investigation of how such experiences intersect with the novels’ composition. Scenes of indoor walking in the Brontë novels foreground affective connections between a subject moved to walk by an intense emotional state and an observer who witnesses and interprets the walk and who may act in response. Communal indoor walking in the novels thus provides a model through which to read materialist influence as, in Barad’s terms, ‘intra-active’ and ‘entangled’.

History of Great Britain
arXiv Open Access 2023
ScrollTimes: Tracing the Provenance of Paintings as a Window into History

Wei Zhang, Wong Kam-Kwai, Yitian Chen et al.

The study of cultural artifact provenance, tracing ownership and preservation, holds significant importance in archaeology and art history. Modern technology has advanced this field, yet challenges persist, including recognizing evidence from diverse sources, integrating sociocultural context, and enhancing interactive automation for comprehensive provenance analysis. In collaboration with art historians, we examined the handscroll, a traditional Chinese painting form that provides a rich source of historical data and a unique opportunity to explore history through cultural artifacts. We present a three-tiered methodology encompassing artifact, contextual, and provenance levels, designed to create a "Biography" for handscroll. Our approach incorporates the application of image processing techniques and language models to extract, validate, and augment elements within handscroll using various cultural heritage databases. To facilitate efficient analysis of non-contiguous extracted elements, we have developed a distinctive layout. Additionally, we introduce ScrollTimes, a visual analysis system tailored to support the three-tiered analysis of handscroll, allowing art historians to interactively create biographies tailored to their interests. Validated through case studies and expert interviews, our approach offers a window into history, fostering a holistic understanding of handscroll provenance and historical significance.

en cs.HC, cs.CV
DOAJ Open Access 2022
PREFACE

Oleh Pylypchuk, Oleh Strelko, Yulia Berdnychenko

The issue of the journal begins with an article on French sinology. French sinology takes a special place in the history of the sinological studies development. It was France that became the first country where the transformation of missionary sinology, which was common among a limited circle of researchers (mainly in a religious sphere), into the academic scientific discipline, which had already been taught and studied at a professional level in academic institutions, occurred. The Parisian type of sinology used to dominate the entire world for a long time, including such powerful centers of Chinese studies as Germany, Great Britain, the USA, and China itself. In order to form a complete picture of sinology development in France, the authors singled out and analyzed three historical periods covering the entire history of Chinese studies development, starting from its birth and flourishment to the process of stagnation. Modern scientific communication traditionally uses visual narratives, such as comics, for education, presentation of scientific achievements to a mass audience, and as an object of research. In the article by Oksana Hudoshnyk and Oleksandr P. Krupskyi, offers a three-level characterization of the interaction of comic culture and science in a diachronic aspect. Attention is focused not only on the chronological stages of these intersections, the expression of the specifics of the interaction is offered against the background of scientific and public discussions that accompany the comics–science dialogue to this day. Emphasis is placed on the unique phenomenon of the simultaneous concordance of various stages of the dialogue between comics and science, on the prolonged replication of successful inventions into modern experience, and the active testing of known narratives at new levels of a scientific presentation. The next paper assesses the topicality of Vernadsky's concept of the noosphere, coined over almost twenty years starting in the early 20th century. Emphasizing the uniqueness of Vernadsky's concept of the noosphere as the transformation of the biosphere by a man using reason, we concentrate on the assessment of the utopian or realistic nature of his vision of the future of humanity. Based on the philosophical case-studies analysis, it identifies the ideological roots of the noosphere concept, the development of views on the concept in time, the role of reason and scientific thinking, the opinions of its supporters and critics, and Moiseev's related concept of co-evolution. Lectures de Potentia Restitutiva or Of Spring: Explaining the Power of Springing Bodies (1678) is an important book for the history of science. This book is better known for Hooke’s presentation of the law that bears his name. In the article by Isadora Monteiro, seeks to study the Lectures de Potentia Restitutiva once again to better understand Hooke’s thoughts about the rule which bears his name and his conception of gravity, which the author considered a force. Here Hooke’s definitions of body and motion will be presented, as well as his actual objective when he formulated the so-called Hooke’s Law. As we will see, Hooke intended to create a “philosophical scale” to measure the gravitational attraction between bodies. By considering his previous publications, such as An attempt to prove the motion of the Earth from Observations or Micrographia: or some Physiological Descriptions of Minute Bodies, or even unpublished works such as On the inflection of a direct motion into a curve by supervening Attractive principle, it becomes clear that Hooke was already opening a path toward an understanding of gravity before Newton’s Principia (1687) were published. By taking into account the controversy between Isaac Newton and Robert Hooke, we also intend to strengthen the idea that Hooke was an indispensable contributor to the elaboration of a law of universal gravitation. In 1915, the first occupational therapy school was founded by Jane Addams at Hull House (Chicago, USA). In that process, Addams inspired the first generation of occupational therapists, especially Eleanor Clarke Slagle. Thus, in the article by Rodolfo Morrisonseeks to highlight the contribution of Jane Addams to the development of Occupational Therapy through an in-depth bibliographic review, from primary sources. The next article presents the results of a study of the features of biographical and prosopographic materials about famous mathematicians and natural scientists, published in one of the most authoritative journals “Bulletin of Experimental Physics and Elementary Mathematics”, which was published in Kyiv and Odesa during 1886–1917. In fact, the journal was an unofficial periodical printed branch of the Mathematical Department of the Novorossiysk Society of Naturalists. The aim of the next research is to study the policy efforts conducted by the Indonesian government since the beginning of independence in 1945 to present, in advancing science and technology and innovation. A content analysis approach is employed to identify each stipulated regulation in Indonesia in the form of Laws, Government Regulations, Presidential Regulations, Presidential Decrees, and Presidential Instructions. There are 78 regulations in the field of science and technology and innovation that are analyzed. The results of the analysis are described based on the emergence of regulations and institutional implications generated as part of the ecosystem. In the article by Ihor Annienkov, based on the problem-chronological, comparative-historical, historiographical, and source-research methods, as well as the method of actualization, identifies the extent of borrowing foreign design and technological solutions in the Ukrainian Soviet Socialist Republic for projecting electrical machines in the second half of the 1930s, as well as the reasons for the absence of unambiguous information in historiography regarding the existence of this phenomenon in the republic at this chronological stage. The publication provides a general assessment of the quality of scientific support for the processes of creating electrical machines, establishes the ways of fulfilling the scientific-technical borrowings that were studiedand the dynamics of their development, analyzes their role in the growth of the technical level of products of the Ukrainian electrical machine-building branch. In the article by Mykola Ruban and Andrii Fomin, attempts to investigate the historical circumstances of the mastering and development of the industrial production of rolling stock in Ukraine from 1991 to 2021. In the course of the scientific development of the proposed research, materials from mass-circulation newspapers, industry publications of railway transport, as well as technical studies of employees of manufacturing plants were used. The next discusses the conditions and prerequisites for choosing the location of the plant; considers the stage of the establishment (foundation) of the plant; examines the stage of plant construction and equipping it with technological facilities in detail; analyzes the development and establishment of the plant between 1897 and 1914. A brief analysis of locomotive designs produced by the Kharkiv Locomotive Plant from 1897 to 1914 has been made. The article shows the significance of Consultative Congresses of Traction Engineers for the development of railway machinery both at Kharkiv Locomotive Plant and for the entire railway industry. The purpose of next study is to highlight the peculiarities of the development of the Russian aviation industry during the First World War. The focus is on analyzing production programs and matching their quantitative and qualitative parameters to war requirements. Production plans of leading Russian aviation factories as well as qualitative and quantitative parameters of products have been analyzed in the article.

History (General) and history of Europe, Science (General)
arXiv Open Access 2022
On the dynamics of credit history and social interaction features, and their impact on creditworthiness assessment performance

Ricardo Muñoz-Cancino, Cristián Bravo, Sebastián A. Ríos et al.

For more than a half-century, credit risk management has used credit scoring models in each of its well-defined stages to manage credit risk. Application scoring is used to decide whether to grant a credit or not, while behavioral scoring is used mainly for portfolio management and to take preventive actions in case of default signals. In both cases, network data has recently been shown to be valuable to increase the predictive power of these models, especially when the borrower's historical data is scarce or not available. This study aims to understand the creditworthiness assessment performance dynamics and how it is influenced by the credit history, repayment behavior, and social network features. To accomplish this, we introduced a machine learning classification framework to analyze 97.000 individuals and companies from the moment they obtained their first loan to 12 months afterward. Our novel and massive dataset allow us to characterize each borrower according to their credit behavior, and social and economic relationships. Our research shows that borrowers' history increases performance at a decreasing rate during the first six months and then stabilizes. The most notable effect on perfomance of social networks features occurs at loan application; in personal scoring, this effect prevails a few months, while in business scoring adds value throughout the study period. These findings are of great value to improve credit risk management and optimize the use of traditional information and alternative data sources.

en cs.SI, cs.LG
DOAJ Open Access 2021
Walter Scott and Washington Irving: On the History of Personal and Professional Relationship

Ekaterina I. Kolosova

Walter Scott and Washington Irving are prominent representatives of the Romantic era who were bound by both professional and friendly relations. Their friendship is a remarkable episode in the history of transatlantic literary contacts. In 1817, in Abbotsford, their personal meeting took place, which positively influenced Irving's career. Scott introduced his colleague to his friend John Murray, who was one of the most influential Scottish publishers of his day. Through this meeting, Irving became the first American writer to gain recognition in the UK. An idea of the relationship between Scott and Irving is given by their personal correspondence. Despite the fact that some letters have been lost or are currently in the hands of private collectors, there is enough published material to outline the main topics and interests that united these two writers. In an addendum to the article there are four letters in Russian translation, written in October–December 1819. They are especially noteworthy because they touch on a number of important aspects for Irving's career. In 1819, the American writer took the first steps towards publication in Great Britain and turned to Scott for help. From the master he received a professional assessment of his American editions of The Sketch Book. Scott gave advice on what books are best to publish for an English reader, as well as offered to take the editor post of an anti-Jacobin magazine. In addition, in these letters Scott introduced his American colleague to the intricacies of 19thcentury Scotland book-making and offered the most beneficial ways to communicate with publishers, which is also of interest from the point of view of the history of publishing in the 19th century Great Britain.

American literature
DOAJ Open Access 2020
“A Claim to Be Heard”: Voices of Ordinary People in BBC Radio Features

Peter M. Lewis

The BBC radio feature, originally influenced by the documentary film movement, combined music and sound with speech that at first was scripted, later recorded on location, along with ‘actuality’. This paper will ask ‘whose speech?’ A memorandum from BBC Director General, John Reith, in 1924, had insisted that “only those who have a claim to be heard above their fellows on any particular subject… should be put on the programme”. Nevertheless, from the 1930s onwards, there was a continuing effort on the part of more politically-minded producers to extend the range of voices heard on the air. The BBC’s North Region, where it was easier to escape Reith’s centralising control, led the way. Pioneering initiatives used the cumbersome recording apparatus of the time to reach into people’s homes and work-places to capture working class voices. After WW2 this example was followed in other regions, until, belatedly in the late 1950s, the BBC began to accept the use of portable recording. By this time a Europe-wide culture of radio feature-making had developed, influenced by the French exploration of musique concrète and the flourishing German Hörspiel, and fostered by the Prix Italia and the International Features Workshop. British features producers contributed to this movement and won some success with highly-crafted, aesthetically innovative features. The paper concludes by examining examples of the voices heard in BBC radio features in the last decade of the 20th century.

History of Great Britain, English literature
arXiv Open Access 2020
A Probabilistic Model for Analyzing Summary Birth History Data

Katie Wilson, Jon Wakefield

BACKGROUND There is an increasing demand for high quality subnational estimates of under-five mortality. In low and middle income countries, where the burden of under-five mortality is concentrated, vital registration is often lacking and household surveys, which provide full birth history data, are often the most reliable source. Unfortunately, these data are spatially sparse and so data are pulled from other sources to increase the available information. Summary birth histories represent a large fraction of the available data, and provide numbers of births and deaths aggregated over time, along with the mother's age. OBJECTIVE Specialized methods are needed to leverage this information, and previously the Brass method, and variants, have been used. We wish to develop a model-based approach that can propagate errors, and make the most efficient use of the data. Further, we strive to provide a method that does not have large computational overhead. CONTRIBUTION We describe a computationally efficient model-based approach which allows summary birth history and full birth history data to be combined into analyses of under-five mortality in a natural way. The method is based on fertility and mortality models that allow direct smoothing over time and space, with the possibility for including relevant covariates that are associated with fertility and/or mortality. We first examine the behavior of the approach on simulated data, before applying the model to survey and census data from Malawi.

en stat.ME
arXiv Open Access 2020
Asymptotically optimal strategies for online prediction with history-dependent experts

Jeff Calder, Nadejda Drenska

We establish sharp asymptotically optimal strategies for the problem of online prediction with history dependent experts. The prediction problem is played (in part) over a discrete graph called the $d$ dimensional de Bruijn graph, where $d$ is the number of days of history used by the experts. Previous work [11] established $O(\varepsilon)$ optimal strategies for $n=2$ experts and $d\leq 4$ days of history, while [10] established $O(\varepsilon^{1/3})$ optimal strategies for all $n\geq 2$ and all $d\geq 1$, where the game is played for $N$ steps and $\varepsilon=N^{-1/2}$. In this paper, we show that the optimality conditions over the de Bruijn graph correspond to a graph Poisson equation, and we establish $O(\varepsilon)$ optimal strategies for all values of $n$ and $d$.

en math.OC, cs.GT

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