Miracle-dz/UniFAR-FTUs huggingface dataset:
MORES: Online Incremental Multiple-Output Regression for Data Streams

Online multiple-output regression is an important machine learning technique for modeling, predicting, and compressing multi-dimensional correlated data streams. In this paper, we propose a novel online multiple-output regression method, called MORES, for streaming data. MORES can \emph{dynamically} learn the structure of the regression coefficients to facilitate the model's continuous refinement. We observe that limited expressive ability of the regression model, especially in the preliminary stage of online update, often leads to the variables in the residual errors being dependent. In light of this point, MORES intends to \emph{dynamically} learn and leverage the structure of the residual errors to improve the prediction accuracy. Moreover, we define three statistical variables to \emph{exactly} represent all the seen samples for \emph{incrementally} calculating prediction loss in each online update round, which can avoid loading all the training data into memory for updating model, and also effectively prevent drastic fluctuation of the model in the presence of noise. Furthermore, we introduce a forgetting factor to set different weights on samples so as to track the data streams' evolving characteristics quickly from the latest samples. Experiments on three real-world datasets validate the effectiveness and efficiency of the proposed method.
This PDF is a selection from a published volume from the National Bureau of Economic Research Volume Title: Globalization in an Age of Crisis: Multilateral Economic Cooperation in the Twenty-First Century

Volume Title: Globalization in an Age of Crisis: Multilateral Economic Cooperation in the Twenty-First Century Volume Author/Editor: Robert C. Feenstra and Alan M. Taylor, editors Volume Publisher: University of Chicago Press Volume ISBN: cloth: 978-0-226-03075-3 eISBN: 978-0-226-03089-0 Volume URL: http://www.nber. org/books/feen11-1 Conference Date: September 15-16, 2011 Publication Date: December 2013
A Divide-and-Merge Approach for Deep Segmentation of Document Tables

Document tables are a rich source of implicit semantics hidden in documents which could be exploited for better searching and ranking. However, a central problem in document table processing systems is the segmentation of impure and incomplete table segments. Many existing methods are limited to basic table segments of limited table layout complexity. These methods are passing through the stage of very low level segmentation thus missing many physical and logical structures of tables producing erroneous results. However, these structures have significant impact on the overall table interpretation. In order to gain the full strength of table information reusability, a deep segmentation with a layout independent representation of tables is needed. This paper propose an algorithm which performs divide and merge tasks in different phases of segmentation using matrix as intermediate model. The algorithm covers maximum layout complexity and extracts table schema, data and the set of reading paths which are then represented in a layout independent notation. We evaluated our results using standard measures and open data sets.
Centre De Referència En Economia Analítica Barcelona Economics Working Paper Series Working Paper Nº 254 Redistributive Taxation with Endogenous Sentiments Redistributive Taxation with Endogenous Sentiments * Redistributive Taxation with Endogenous Sentiments

To help explain differences between the US and EU " social contracts " as well as other cultural differences, we present a model of rational voting over redistribution where individual attitudes toward others are endoge-nously determined. Individuals differ in their productivities and their degree of social concern, and their behavior is influenced by moral standards. According to these, agents determine what they take to be proper behavior, here identified with the average labor supply, and they judge others accordingly. They increase their esteem for those who perform in excess of the norm and decrease their esteem for those who work less. This pertains to their self-esteem as well, which varies in relation to their own performance. Attitudes toward others influence the desired extent of redistribution. There are multiple politico-economic equilibria. In one equilibrium all individuals conform to proper behavior, their esteem for others is not biased towards any particular type, and the majority vote for high redistribution. In the other equilibrium, highly skilled workers work above the mean and are admired by everyone, while unskilled workers are considered lazy. Here, the majoritarian vote supports low redistribution. We contrast the US and EU social contracts in light of the predictions of the model. * We are very grateful to Tim Besley, Melvyn Coles, Debraj Ray and an anonymous referee for their useful and constructive comments. Abstract To help explain differences between the US and EU " social contracts " as well as other cultural differences, we present a model of rational voting over redistribution where individual attitudes toward others are endoge-nously determined. Individuals differ in their productivities and their degree of social concern, and their behavior is influenced by moral standards. According to these, agents determine what they take to be proper behavior, here identified with the average labor supply, and they judge others accordingly. They increase their esteem for those who perform in excess of the norm and decrease their esteem for those who work less. This pertains to their self-esteem as well, which varies in relation to their own performance. Attitudes toward others influence the desired extent of redistribution. There are multiple politico-economic equilibria. In one equilibrium all individuals conform to proper behavior, their esteem for others is not biased towards any particular type, and the majority vote for high redistribution. In the other equilibrium, highly skilled workers work above the mean and are admired by everyone, while unskilled …
UNSCRAMBLING THE "AVERAGE USER" OF HABBO HOTEL

The "user" is an ambiguous concept in human-computer interaction and information systems. Analyses of users as social actors, participants, or configured users delineate approaches to studying design-use relationships. Here, a developer's reference to a figure of speech, termed the "average user," is contrasted with design guidelines. The aim is to create an understanding about categorization practices in design through a case study about the virtual community, Habbo Hotel. A qualitative analysis highlighted not only the meaning of the "average user," but also the work that both the developer and the category contribute to this meaning. The average user a) represents the unknown, b) influences the boundaries of the target user groups, c) legitimizes the designer to disregard marginal user feedback, and d) keeps the design space open, thus allowing for creativity. The analysis shows how design and use are intertwined and highlights the developers' role in governing different users' interests.
A Trust-based Social Recommender for Teachers

Fazeli, S. , Drachsler, H. , Brouns, F. , & Sloep, P. B. (2012). A trust-based social recommender for teachers. In N. Manouselis, H. Drachsler, K. Verbert, & O. C. Santos (Eds.), 2nd Workshop on Recommender Systems for Technology Enhanced Learning (RecSysTEL 2012) in conjunction with the 7th European Conference on Technology Enhanced Learning (EC-TEL 2012) (pp. 49-60). September, 18-19, 2012, Saarbrucken, Germany.
The impact of gender ideology on the performance of gender-congruent citizenship behaviors

ABSTRACT Because organizational citizenship behavior (OCB) performance contributes to overall performance ratings and failure to perform expected behaviors detracts from performance ratings, it is important to examine whether men and women perform OCBs in stereotypically expected ways. Published studies have evidenced both a presence and an absence of gender differences in OCB performance. With a view to explaining this ambiguity, this article reports the results of a study examining gender ideology as a moderator of the effects of gender on the performance of gender-congruent OCBs (i.e., helping for women and civic virtue for men). Survey data from participants and their coworkers across a wide range of jobs and organizations revealed that gender ideology moderated the effects of gender on the performance of gender-congruent OCBs.
Management of ST-segment elevation myocardial infarction in predominantly rural central China

Abstract The degree of adherence to current guidelines for clinical management of ST-segment elevation myocardial infarction (STEMI) is known in developed countries and large Chinese cities, but in predominantly rural areas information is lacking. We assessed the application of early reperfusion therapy for STEMI in secondary and tertiary hospitals in Henan province in central China. Data were retrospectively collected from 5 secondary and 4 tertiary hospitals in Henan concerning STEMI patients treated from January 2011 to January 2012, including management strategy, delay time, and inhospital mortality. Among 1311 STEMI patients, 613 and 698 were treated at secondary and tertiary hospitals, respectively. Overall, 460 (35.1%) patients received early reperfusion therapy including thrombolysis in 383 patients and primary percutaneous coronary intervention in 77. Compared with secondary centers, early (37.2% vs 32.6%) and successful reperfusion (34.5% vs 25.1%) was significantly higher, whereas thrombolysis was lower in the tertiary hospitals (26.4% vs 32.5%). Median symptom onset-to-first medical contact, and door-to-needle and door-to-balloon time was 168, 18, and 60 minutes, respectively. Delay times closely approached recommended guidelines, especially in secondary centers. Use of recommended pharmacotherapy was low, particularly in secondary hospitals. Inhospital mortality was 5.8%, and similar between secondary and tertiary hospitals (6.0% vs 5.6%; P = 0.183). Two-thirds of STEMI patients did not receive early reperfusion, and tertiary hospitals mostly failed to take advantage of around-the-clock primary percutaneous coronary intervention. Actions such as referrals are warranted to shorten prehospital delay, and the concerns of patients and doctors regarding reperfusion risk should be addressed.
Interference Mitigation Using Optimal Successive Group Decoding for Interference Channels

In this study we aim to assess the optimal successive group decoder (OSGD) considering different scenarios and in a wide range of testing metrics. We investigate the OSGD in the K user interference channel (IC) and evaluate its capability to mitigate interference. We inspect OSGD performance in terms of its (ergodic and effective) capacity. Also, we eval uate its minimum required energy per bit, bit error rate (BER), and outage probability, under different quality of service (QoS) constraints. This study considers both the spatially correlated and uncorrelated (Rayleigh and Rician) flat fading channels . In addition, it explores performance of the OSGD in different SNR and SIR environments, where we consider both the power- limited and bandwidth-limited regimes with various cross-talk values, taking in account several transmit-receive multiple-input multiple-output (MIMO) antenna configurations. The obtain ed numerical results in this work, show that OSGD technique ex- hibits very efficient performance to cope with interference in the investigated scenarios, proving by that its competency comparing to the most developed interference cancellation approaches. 1 This makes OSGD a favorable technique for interference reduction; especially, if we bear in mind that OSGD is formed on receive- side processing only. This confirmed also if we contemplate the reduction of its arithmetic complexity, as a result of it s innate complexity controlling characteristic, comparing to the large computational complexity of the other optimal interference cancellation schemes, such as, the maximum likelihood multi- user detection (ML-MUD) or the other iterative interference alignment schemes.
Attention Networks: A Two-Mode Network View on Valuation

When multiple actors allocate their attention across multiple issues, they create an attention network. We leverage the multiple ties that comprise such an attention network to argue that how competitors interpret a given market situation depends not only on information about that situation but also on the portfolio of other situations to which they pay attention. Specifically, we hypothesize that the more two competitors assess a given situation vis-a-vis a more similar portfolio of other situations, the more they assess that issue similarly. It is so, we argue, because i) competitors who pay attention to the same problems are more likely to make similar cognitive associations and consequently come to more similar solutions on a given problem, and ii) competitors are more likely to adapt their interpretations on the basis of the assessments made by the competitors with whom their attention patterns intersect more frequently. We exploit the two-mode (agents-issues) dynamic structure of these observational networks to study the social and temporal aspects of financial analysts’ valuations in markets from 1993-2011. Our findings show that two analysts form more similar earnings estimates about a given firm if they come to that assessment while paying attention to a more similar portfolio of other firms. Our analysis further demonstrates that analysts’ estimates of the focal firm are influenced by views that cycle through closed triads.
Successful Treatment of Fibrosing Cholestatic Hepatitis Following Kidney Transplantation With Allogeneic Hematopoietic Stem Cell Transplantation: A Case Report

AbstractFibrosing cholestatic hepatitis (FCH) is an uncommon complication of renal transplantation and usually associated with hepatitis B and C viral infection. Without treatment, the prognosis is usually fatal within weeks of onset. There was rarely report with successful treatment intervention.This case report describes a uremic patient with HCV infection who developed a fatal form of FCH after kidney transplantation. This is the first reported successful case with allogeneic hematopoietic stem cell transplantation (AHSCT) without ablative conditioning.A dramatic virologic and clinical improvement was observed in this post-transplantation patient. But no adverse events related to AHSCT were observed. The patient returned to work full-time at 10 months of hospitalization and is still in good health by now. Serum HCV RNA gradually decreased from 2.5 × 106 Copies/mL at day 1 to 3.2 × 104 Copies/mL at day 98 and became negative (<400 Copies/mL) at day 126 of hospitalization and remains negative at the last available assessment.Our report suggests that allogeneic HSCT may have a therapeutic role in FCH.
High resolution segmentation with a time-of-flight 3D-camera using the example of a lecture scene

Time-of-flight principle range cameras are becoming more and more available. They promise to make the 3D reconstruction of scenes easier, avoiding the practical issues resulting from 3D imaging techniques based on triangulation or disparity estimation. Their low resolution and frame rates as well as their low signal-to-noise ratio, however, kept many researchers from seriously considering this technology for segmentation purposes. The following article uses a practical application as an example to present both, an analysis of the problems resulting from the use of time-of-flight principle 3D cameras and a solution to deal with these issues. A lecturer is extracted out of a video that shows him in front of an electronic chalkboard. The extracted instructor can later be laid over the board semitransparently allowing the students to look through him in a later video replay. Using the 3D Time-of-Flight camera technology improves the robustness of the segmentation and lowers its computational complexity.
Technological support to stress-level monitoring

Stress is widely associated with increased health risks (heart and brain diseases, diabetes, cancer, behavioural disorders, etc.). Moreover, a prolonged exposure to stress is known to negatively affect work performance, attitude, decision-making, etc. Furthermore, monitoring of stress levels and proper stress management are of crucial importance for fire-fighters, rescue crews, police force and other high-risk professions in terms of mission success and workforce preservation. In this regard, here we overview the state of the art in personal health monitoring systems and discuss the overall architecture and technology involved in the implementation of such functionality. A particular focus is put on the technology involved in the assessment of brain activity and negative emotional states, which are linked to stress, behavioural, mental disorders, etc. From application point of view we discuss the technological feasibility of stationary and mobile setups for stress-level assessment and monitoring. Finally, we outline the current trends and future research directions and comment on some inherent limitations of stress-level monitoring and on some challenges that remain unaddressed.
Apresentação da Seção Temática - Métodos de Educação Comparada

O campo internacional da Educação Comparada está embasado na noção de comparação. No entanto, existe entre pouca e nenhuma concordância sobre o que são métodos comparados. Talvez isso não surpreenda, dado que o campo é completamente multidisciplinar. Comparação significa coisas distintas para diferentes pesquisadores, que são informados por epistemologias e métodos diversos. Existem duas abordagens gerais para a comparação: aquelas que são orientadas para a variância (e, portanto, tendem a embasar-se em uma epistemologia positivista e a utilizar métodos quantitativos) e aquelas que são orientadas por processo (e assim tendem a empregar uma epistemologia mais interpretativa, construtivista ou crítica e métodos qualitativos).
Reality Quests And Emotional Happiness Of People

Reality quests are becoming very popular in different studies conducted by researchers and practitioners as they see how many people are interested in this kind of games, especially those, who want to get freedom, leadership and independence. That’s why this phenomenon should be studied from sociological and psychological point of view. Under constant stress it is necessary to examine the ability to transform it into constructive, socially approved channels. Quests can help people realize their desire to be free and independent. When people participate in such social practices, they socialize and become more stable in the face of stress. In the paper the authors tried to prove the positive impact of quests on people, i.e. adaptation to the modern way of life, a sort of training to get ready for stressful situations. We consider the quests, taking into account their importance in everyday life, influence on the processes of socialization and adaptation at different levels: individual, group, and society. © 2018 Published by Future Academy www.FutureAcademy. org.UK
Oncologic Outcomes after Immediate Breast Reconstruction Following Total Mastectomy in Patients with Breast Cancer: A Matched Case-Control Study

Purpose The use of immediate breast reconstruction (IBR) following total mastectomy (TM) has increased markedly in patients with breast cancer. As the indications for IBR have been broadened and more breast-conserving surgery-eligible patients are undergoing IBR, comparing the oncologic safety between TM only and IBR following TM becomes more difficult. This study aimed to analyze the oncologic outcomes between TM only and IBR following TM via a matched case-control methodology. Methods A retrospective review was conducted to identify all patients who underwent TM between 2008 and 2014. We excluded patients who underwent neoadjuvant chemotherapy, including palliative chemotherapy, and had a follow-up duration <12 months, inflammatory breast cancer, or incomplete data. We divided the remaining patients into two groups: those who underwent TM only (control group) and those who underwent IBR following TM (study group). The groups were propensity score-matched. Matched variables included age, pathologic stage, estrogen or progesterone receptor status, human epidermal growth factor receptor 2 status, and year of operation. Results After matching, 878 patients were enrolled in the control group and 580 patients in the study group. The median follow-up duration was 43.4 months (range, 11–100 months) for the control group and 41.3 months (range, 12–100 months) for the study group (p=1.000). The mean age was 47.3±8.46 years for the control group and 43.9±7.14 years for the study group (p>0.050). Matching was considered successful for the matching variables and other factors, such as family history, histology, multiplicity, and lymphovascular invasion. There were no significant differences in overall survival (log-rank p=0.454), disease-free survival (log-rank p=0.186), local recurrence-free survival (log-rank p=0.114), or distant metastasis-free survival rates (logrank p=0.537) between the two groups. Conclusion Our results suggest that IBR following TM is a feasible treatment option for patients with breast cancer.
Reduced Aflatoxin Exposure Presages Decline in Liver Cancer Mortality in an Endemic Region of China

Primary liver cancer (PLC) is the third leading cause of cancer mortality globally. In endemic areas of sub-Saharan Africa and Asia, PLC largely arises from chronic infection with hepatitis B virus (HBV) and ingestion of aflatoxins. Although synergistic interactions between these two risk factors have been observed in cohort studies in China, here we determined the impact of agricultural reforms in the 1980s leading to diminished maize consumption and implementation of subsidized universal vaccination against HBV in the 2000s on PLC primary prevention. A population-based cancer registry was used to track PLC mortality in Qidong, China and was compared with the timeline of HBV immunization. Randomly selected serum samples from archived cohort collections from the 1980s to present were analyzed for aflatoxin biomarkers. More than 50% reductions in PLC mortality rates occurred across birth cohorts from the 1960s to the 1980s for Qidongese less than 35 years of age although all were born before universal vaccination of newborns. Median levels of the aflatoxin biomarker decreased from 19.3 pg/mg albumin in 1989 to undetectable (<0.5 pg/mg) by 2009. A population attributable benefit of 65% for reduced PLC mortality was estimated from a government-facilitated switch of dietary staple from maize to rice; 83% of this benefit was in those infected with HBV. Food policy reforms in China resulted in a dramatic decrease in aflatoxin exposure, which, independent of HBV vaccination, reduced liver cancer risk. The extensive HBV vaccine coverage now in place augurs even greater risk reductions in the future. Cancer Prev Res; 6(10); 1038–45. ©2013 AACR.
Geometrical theory of dynamical systems

This text is a slightly edited version of lecture notes for a course I gave at ETH, during the Winter term 2000-2001, to undergraduate Mathematics and Physics students. Contents: Chapter 1 - Examples of Dynamical Systems Chapter 2 - Stationary and Periodic Solutions Chapter 3 - Local Bifurcations Chapter 4 - Introduction to Chaotic Dynamics