Miracle-dz/UniFAR-FTUs huggingface dataset:
Detecting Search Engine Switching Based on User Preferences , Search Tasks , and Behavior Patterns

In this paper, we present our approach to the 2012 Yandex Switching Detection Challenge, which achieved the first place among all participants. Our approach built on multiple gradient boosting tree models predicting search engine switching based on more than 400 features derived from user preferences, search tasks, and user behavior patterns. There are four key aspects in our method: 1) Rich features are designed not only to cover different switching scenarios such as user preference (user-based features) and specific search task (queryand url-based features), but also to learn search failure from user behavior (sessionand action-sequence-based features); 2) To better capture switching signals, we use datasets that are disjoint from the training datasets to compute rich aggregate features over (user specific) switch sessions and non-switch sessions; 3) To better deal with the imbalanced data, we tried both the cost-sensitive technique and the subsampling technique; 4) To alleviate the overfitting problem, we trained multiple models and used the average score for the final prediction.
New concepts of costs optimization for thermal scheduling

An optimal solution to the unit commitment (UC) and economic load dispatch (ELD) problems lead to remarkable saving in the power system operational cost. UC and ELD main problems are to find the maximum profit and fast computation simulation time for the scheduling program. Lagrangian relaxation (LR) has become one of the best solution methods in solving the UC and ELD problems. The approach is claimed to be more efficient and easier than other methods in solving large-scale problems. When applying LR, the dual function needed to be updated at the higher level. Lately, bundling method (BM) is one of the best solution methods to Lagrangian dual problem. This paper presents LR technique, BM and interior point method for solving the UC and ELD problems. It will also explore the best possible way of updating Lagrangian multipliers with minimum computation time using fast programming techniques.
Rethinking the library OS from the top down

This paper revisits an old approach to operating system construc-tion, the library OS, in a new context. The idea of the library OS is that the personality of the OS on which an application depends runs in the address space of the application. A small, fixed set of abstractions connects the library OS to the host OS kernel, offering the promise of better system security and more rapid independent evolution of OS components. We describe a working prototype of a Windows 7 library OS that runs the latest releases of major applications such as Microsoft Excel, PowerPoint, and Internet Explorer. We demonstrate that desktop sharing across independent, securely isolated, library OS instances can be achieved through the pragmatic reuse of net-working protocols. Each instance has significantly lower overhead than a full VM bundled with an application: a typical application adds just 16MB of working set and 64MB of disk footprint. We contribute a new ABI below the library OS that enables application mobility. We also show that our library OS can address many of the current uses of hardware virtual machines at a fraction of the overheads. This paper describes the first working prototype of a full commercial OS redesigned as a library OS capable of running significant applications. Our experience shows that the long-promised benefits of the library OS approach better protection of system integrity and rapid system evolution are readily obtainable.
Personal best (PB) and ‘classic’ achievement goals in the Chinese context: their role in predicting academic motivation, engagement and buoyancy

Prior research has shown personal best (PB) goals to be significantly related to students’ motivation, engagement and achievement. However, research thus far has investigated PB goals only among Western samples and it is unclear to what extent PB goals hold academic merit in the Asian context. It is also unclear whether PB goals explain variance in motivation and engagement beyond that explained by ‘classic’ performance, mastery and avoidance goals. With a sample of 3753 middle school students in China, the present study showed that mastery and PB goals explained the bulk of variance in motivation, engagement and academic buoyancy outcomes. It therefore appears that the effects of PB and ‘classic’ goals derived in Western contexts generalise to the Chinese context. Further, although correlated, mastery and PB goals explain unique variance in distinct academic outcomes such that mastery goals appear more salient in mapping onto motivation factors while PB goals appear more salient in mapping onto engagement and buoyancy factors.
Lattice strategies for a multi-pair bi-directional relay network

We consider a cellular network inspired channel model which consists of the bi-directional exchange of information between a base-station and M terminal nodes with the help of a relay. The base-station has a message for each of M terminals, and conversely, each terminal node has a message for the base-station. A single relay assists the bi-directional communication endeavor. We assume an AWGN channel model with direct links (omitted in previous studies) between the base-station, relay, and half-duplex nodes. In this scenario, we derive achievable rate regions for two temporal protocols - needed in half-duplex networks - which indicate which users transmit when. These achievable rate regions are based on a novel lattice encoding and decoding strategy which outperforms previously derived regions using random-coding based decode-and-forward strategies under certain channel conditions. The terminal nodes employ nested lattice codes, and the relay decodes a series of codeword combinations - one of the main novelties of our scheme - from which it deduce the sum-codewords of the base-station to terminal node i, which it then broadcasts. This scheme differs markedly from previously considered successive-decoding based lattice strategies and provides a more general framework for the joint decoding of lattice codewords in a MAC. Numerical evaluations of our lattice-based inner bounds are shown to improve upon previous random-coding based schemes under certain channel conditions, and are compared to half-duplex cut-set outer bounds. We further demonstrate a constant sum-rate gap result using this lattice-based scheme for symmetric channels for one of the two protocols.
An ElGamal Encryption with Fuzzy Keyword Search on Cloud Environment

With the continuous development of cloud computing, more and more sensitive data needs to be centrally stored in the cloud storage. For protecting the privacy of data, sensitive data must be encrypted before being outsourced to the server. The traditional PEKS (Public Encryption Keyword Search) enables users to search data by using keywords in the condition of encryption, however, it not only needs the security channel but also tolerates the huge pairing-computation. Although the pairing-free public key encryption with keyword search has been proposed, it can not support fuzzy keyword search and this drawback greatly reduces the usability of the system. In this paper, the proposed scheme features three good aspects: First, the keywords and data have been encrypted under the server's public key and thus the secure channel of the keywords transmission has been eliminated in the sense that the outside attackers cannot obtain any information related to the keywords without the knowledge of the server's private key. Second, our scheme not only supports accurate keyword search encryption but also supports the search when the keywords input have any spelling mistakes or format inconsistencies, which significantly improved the availability of the system. Finally, the proposed scheme is constructed on the El Gamal encryption instead of the bilinear-pairing encryption, which greatly improve the computational efficiency.
Voltage Flicker Mitigation Employing Smart Loads With High Penetration of Renewable Energy in Distribution Systems

This paper deals with modeling and control of smart loads for demand-response management under increased penetration of renewable power generations (RPGs) at distribution level. The increased penetration of RPGs, particularly wind energy at distribution level, is associated with adverse impact on voltage quality. A permanent magnet synchronous generator based variable speed wind energy conversion system is modeled with a wind speed considering stochastic and periodic effects. The emulated wind power into the distribution system produces stochastic and periodic power variations. For the load demand response management, full-bridge self-commutated switches based converters are employed to control smart loads (SLs). These SLs are controlled for participating in grid bus voltage regulation and flickers mitigation. From various case studies, it is found that SLs are effective in improving the voltage profiles of the test feeder.
Examining the Influence of Campus Diversity Experiences and Color-Blind Racial Ideology on Students' Social Justice Attitudes

This study examined the relationships between color-blind racial ideology (CBRI) and social justice attitudes among a racially diverse sample of first-year college students (n = 431). Results indicated that CBRI scores partially mediated the relation between participation in campus diversity experiences and social justice attitudes for Black, Latino, and White students differentially by racial group. CBRI scores accounted for 34% to 47% of this association. Implications for student affairs research and practice are discussed.
The representation of migrants in the Italian press: A study on the Corriere della Sera (1992-2009)

The research analyses media discourse on migration in Italy, regarded as a means of reproducing and maintaining a racist interpretation of inter-group relations. The theoretical framework is the Critical Discourse Analysis approach. Quantitative and qualitative analyses were performed on data consisting of headlines and articles from the Italian newspaper Corriere della Sera, published between 1992 and 2009. Overall, it emerged that discourse is built according to themes and discursive strategies already identified by similar research based on European media, indicating how this system of representations defines a common sense of cultural belonging and a shared construction of ethnic relations. The rather long time span considered in the study allowed us to focus on how the discourse on migration in Italy might have evolved over time, but also to identify any elements that may have remained unchanged. Key words: Racism; prejudice; migration; mass media; Critical Discourse Analysis; Corriere della Sera; Italy
Anatomy, ultrastructure and secretion of Hibiscus pernambucensis Arruda (Malvaceae) extrafloral nectary

Este trabalho descreve o nectario extrafloral (NEF) de Hibiscus pernambucensis, uma especie nativa encontrada ao longo do litoral brasileiro, vegetando areas de manguezal e restinga. NEFs ocorrem como sulcos profundos com bordo saliente sobre as nervuras na face abaxial da lâmina foliar. Cada nectario consiste de numerosos tricomas secretores multicelulares, celulas epidermicas dispostas em palicada e parenquima nao vascularizado. Acucares redutores, lipideos e proteinas foram histoquimicamente detectados em todas as celulas do nectario. Compostos fenolicos ocorrem nos vacuolos das celulas epidermicas e na porcao bisseriada dos tricomas secretores. As celulas que formam o corpo dos tricomas secretores apresentam nucleo volumoso, citoplasma denso com muitas mitocondrias, dictiossomos, gotas lipidicas esparsas e plastidios com diferentes tipos de inclusoes: proteinas, gotas de oleo ou graos de amido; os vacuolos possuem diferentes tamanhos e podem apresentar material membranoso, substâncias lipofilicas e fenolicas. As celulas em palicada mostram paredes periclinais espessas, citoplasma reduzido com gotas lipidicas conspicuas e vacuoma desenvolvido As celulas do parenquima caracterizam-se por apresentar muitos plasmodesmos e citoplasma abundante com gotas lipidicas dispersas, mitocondrias, plastidios repletos de graos de amido e reticulo endoplasmatico. Idioblastos de mucilagem sao comuns na regiao mais interna do parenquima nectarifero. A protoderme e o meristema fundamental participam na formacao do nectario extrafloral. Os dados mostram que todas as regioes do nectario estao envolvidas na producao e secrecao do nectar, constituindo assim, uma unidade funcional. A presenca de idioblastos de mucilagem no parenquima nectarifero aumenta a capacidade de retencao de agua neste tecido e, provavelmente, colabora na longevidade do nectario.
Reliable Procedure for the Initiation of the Fleischmann-Pons Effect

Statistics on the initiation of the Fleischmann-Pons effect are rather poor. Reports presented at the First Annual Conference on Cold Fusion have indicated that, at best, only ca 1/10 of all attempts were successful in either producing excess enthalpy or yielding products associated with nuclear reactions. Here, we show that the Fleischmann-Pons effect can be reproducibly and rapidly initiated by employing electrodes prepared by electrodeposition from Pd salts in the presence of evolving deuterium. The effectiveness of this procedure is examined in terms of tritium production.
The Organization of Behavior: A Neuropsychological Theory

Contents: Introduction. The Problem and the Line of Attack. Summation and Learning in Perception. Field Theory and Equipotentiality. The First Stage of Perception: Growth of the Assembly. Perception of a Complex: The Phase Sequence. Development of the Learning Capacity. Higher and Lower Processes Related to Learning. Problems of Motivation: Pain and Hunger. The Problem of Motivational Drift. Emotional Disturbances. The Growth and Decline of Intelligence.
Unconsciously Triggered Emotional Conflict by Emotional Facial Expressions

The present study investigated whether emotional conflict and emotional conflict adaptation could be triggered by unconscious emotional information as assessed in a backward-masked affective priming task. Participants were instructed to identify the valence of a face (e.g., happy or sad) preceded by a masked happy or sad face. The results of two experiments revealed the emotional conflict effect but no emotional conflict adaptation effect. This demonstrates that emotional conflict can be triggered by unconsciously presented emotional information, but participants may not adjust their subsequent performance trial-by trial to reduce this conflict.
Research for Change versus Research as Change: Lessons from a Mujerista Participatory Research Team

In this article, I aim to further the discussion of engaged research in anthropology and education by examining the unique changes promoted by participatory research in contrast to policy-oriented activist research models. Drawing on my work with Latina immigrant mothers in a school reform movement, I argue for a Latina feminist view of participatory research that illuminates and builds on Latina women's capacities for social critique and transformative resistance. [participatory research, activist anthropology, Latino parents, school reform]
The Role of Oral History in Accounting

The case is made for oral history as a research tool, and a possible role in respect to the accountancy profession is recommended and discussed: the study of the evolution of accounting standards. The collection and preservation of oral records is described. Illustrative examples are provided. The benefits and drawbacks of this kind of research are analysed.
Association of duration of television viewing in early childhood with the subsequent development of asthma

Objective: To investigate whether duration of television (TV) viewing in young children is associated with subsequent development of asthma. Methods: Children taking part in the Avon Longitudinal Study of Parents and Children (ALSPAC) with no wheeze up to the age of 3.5 years and follow-up data at 11.5 years of age took part in a prospective longitudinal cohort study. The main outcome measure was asthma, defined as doctor-diagnosed asthma by 7.5 years of age with symptoms and/or treatment in the previous 12 months at 11.5 years of age. Parental report of hours of TV viewing per day by the children was ascertained at 39 months. Results: In children with no symptoms of wheeze at 3.5 years of age and follow-up data at 11.5 years of age, the prevalence of asthma was 6% (185/3065). Increased TV viewing at 3.5 years was associated with increased prevalence of asthma at 11.5 years of age (p for linear trend = 0.0003). Children who watched television for >2 h/day were almost twice as likely to develop asthma by 11.5 years of age as those watching TV for 1–2 h/day (adjusted odds ratio 1.8 (95% CI 1.2 to 2.6)). Conclusion: Longer duration of TV viewing in children with no symptoms of wheeze at 3.5 years of age was associated with the development of asthma in later childhood.
Guidelines for the Evaluation of Immune Therapy Activity in Solid Tumors: Immune-Related Response Criteria

Purpose: Immunotherapeutic agents produce antitumor effects by inducing cancer-specific immune responses or by modifying native immune processes. Resulting clinical response patterns extend beyond those of cytotoxic agents and can manifest after an initial increase in tumor burden or the appearance of new lesions (progressive disease). Response Evaluation Criteria in Solid Tumors or WHO criteria, designed to detect early effects of cytotoxic agents, may not provide a complete assessment of immunotherapeutic agents. Novel criteria for the evaluation of antitumor responses with immunotherapeutic agents are required. Experimental Design: The phase II clinical trial program with ipilimumab, an antibody that blocks CTL antigen-4, represents the most comprehensive data set available to date for an immunotherapeutic agent. Novel immune therapy response criteria proposed, based on the shared experience from community workshops and several investigators, were evaluated using data from ipilimumab phase II clinical trials in patients with advanced melanoma. Results: Ipilimumab monotherapy resulted in four distinct response patterns: (a) shrinkage in baseline lesions, without new lesions; (b) durable stable disease (in some patients followed by a slow, steady decline in total tumor burden); (c) response after an increase in total tumor burden; and (d) response in the presence of new lesions. All patterns were associated with favorable survival. Conclusion: Systematic criteria, designated immune-related response criteria, were defined in an attempt to capture additional response patterns observed with immune therapy in advanced melanoma beyond those described by Response Evaluation Criteria in Solid Tumors or WHO criteria. Further prospective evaluations of the immune-related response criteria, particularly their association with overall survival, are warranted. (Clin Cancer Res 2009;15(23):7412–20)
Forced-choice associative recognition: implications for global-memory models

Associative recognition requires subjects to discriminate intact from rearranged test pairs. In a 3-alternative forced-choice procedure, an intact test pair is tested against 2 rearranged distractors which may overlap, by sharing a common word in each test pair alternative (OLAP), or may not share words (NOLAP). With the exception of Murdock's (1982) theory of distributed associative memory (TODAM), current global matching models predict that forced-choice performance will be better for OLAP than for NOLAP test trials. TODAM can predict either an OLAP advantage or no difference between OLAP and NOLAP test conditions. The performance of the models is produced by fundamental statistical properties, and with the exception of TODAM, the OLAP advantage cannot be eliminated by varying parameters
Computing artificial backbones of hydrogen atoms in order to discover protein backbones

NMR experiments are able to provide some of the distances between pairs of hydrogen atoms in molecular conformations. The problem of finding the coordinates of such atoms is known as the molecular distance geometry problem. This problem can be reformulated as a combinatorial optimization problem and efficiently solved by an exact algorithm. To this purpose, we show how an artificial backbone of hydrogens can be generated that satisfies some assumptions needed for having the combinatorial reformulation. Computational experiments show that the combinatorial approach to this problem is very promising.
What does commitment mean to volunteers in youth sport organizations?

Youth sport is heavily dependent on volunteers to ensure successful delivery of sport programmes. This paper qualitatively investigated motivations and commitments of volunteers at various stages in their careers. Data were gathered through focus group interviews with 34 participants representing five sports and analysed using the Analysis Method Framework. Probes included volunteers' motivations for volunteering, views of commitment, views on commitment targets, and views on clashes between different types of volunteers. Statements were classified on two key dimensions: commitment to organisational targets, and status as core or casual volunteers. This classification resulted in the creation of a typology describing four types of volunteeers (‘Mums and dads’, ‘Specialists’, ‘Über-volunteers task-oriented’, and ‘Über-volunteers team-oriented’). Future research should focus on the application of the volunteer typology for further understanding of how commitment influences volunteer behaviour.
Pharmacokinetics of the hypoxic radiosensitizers misonidazole and demethylmisonidazole after intraperitoneal administration in humans.

The hypoxic radiosensitizers misonidazole or demethylmisonidazole were administered i.p. in a 2-liter volume to 6 patients affected by advanced ovarian carcinoma, and the pharmacokinetic course of the two drugs was studied. The clearance of misonidazole and demethylmisonidazole from the peritoneal fluid was 19.1 and 12.4 ml/min, respectively. At 3 hr after drug administration, both radiosensitizers had peritoneal fluid concentrations more than 8 times larger than in the plasma. The concentration x time exposure in the peritoneal fluid was 3.2 times larger than in plasma for misonidazole and 7.6 times for demethylmisonidazole. The advantage of i.p. delivery compared with systemic delivery decreases with distance from the peritoneal surface, but the advantage may be maintained for up to 1 mm or 100 cell layers. These differences between the two routes of administration provide a rational basis for the expectation that a substantial increase of the therapeutic benefits of misonidazole and demethylmisonidazole in potentiating radiation therapy or chemotherapy can be expected in treating tumors confined to the i.p. space.
Node-splitting constructions for large girth irregular and protograph LDPC codes

Low Density Parity Check (LDPC) codes have capacity-approaching performance over several channels of interest. In practice, for good block-error rate performance, the girth of the Tanner graph of an LDPC code needs to be as high as possible. In theory, to show that block-error rate approaches zero for increasing block-lengths, the girth of the Tanner graph sequence needs to tend to infinity with block-length. To meet these requirements, we construct sequences of large-girth irregular LDPC codes for a given degree-distribution pair (DDP) by applying a general node splitting algorithm on large girth graphs. The obtained Tanner graph meets the required DDP up to a suitable approximation. By optimizing the node-splitting method and using suitable large-girth graphs, we show code constructions with smaller block length for the same girth, when compared to previous constructions. Similar gains in block length are observed in the construction of sequences of large-girth protograph LDPC codes. Simulations, over a binary erasure channel, confirm the gains in block-error rate obtained by the large girth construction.