9,416 research outputs found
Overview of the author identification task at PAN 2014
No full textThe author identification task at PAN-2014 focuses on author verification. Similar to PAN-2013 we are given a set of documents by the same author along with exactly one document of questioned authorship, and the task is to determine whether the known and the questioned documents are by the same author or not. In comparison to PAN-2013, a significantly larger corpus was built comprising hundreds of documents in four natural languages (Dutch, English, Greek, and Spanish) and four genres (essays, reviews, novels, opinion articles). In addition, more suitable performance measures are used focusing on the accuracy and the confidence of the predictions as well as the ability of the submitted methods to leave some problems unanswered in case there is great uncertainty. To this end, we adopt the c@1 measure, originally proposed for the question answering task. We received 13 software submissions that were evaluated in the TIRA framework. Analytical evaluation results are presented where one language-independent approach serves as a challenging baseline. Moreover, we continue the successful practice of the PAN labs to examine meta-models based on the combination of all submitted systems. Last but not least, we provide statistical significance tests to demonstrate the important differences between the submitted approaches
Significant Reliablity Enhancement Using New Anisotropic Conductive Adhesives for Flip Chip on Organic Substrates Applications
No full textCan models of author intention support quality assessment of content?
No full textAcademics seek to find, understand and critically review the work of other researchers through published scientific articles. In recent years, the volume of available information has significantly increased, partly due to technological advancements and partly due to pressures on academics to 'publish or perish'. This amount of papers presents a challenge not only for the peer-review process but also for readers, particularly inexperienced readers, to find publications of high quality. Whilst one might rely on citation or journal rankings to help guide this decision, this approach may not be completely reliable due to biased peer-review processes and the fact that the citation count of an article does not per se indicate its quality. Here, we analyse how expected author intentions in a Related Work section can be used to indicate its quality. We show that author intentions can predict the quality with reasonable accuracy and propose that similar approaches could be used in other sections to provide an overall picture of quality. This approach could be useful in supporting peer-review processes and for a reader in prioritising articles to read. © 2019 CEUR-WS. All rights reserved.Peer reviewe
Service-oriented models for audiovisual content storage
No full textWhat are the important topics to understand if involved with storage services to hold digital audiovisual content? This report takes a look at how content is created and moves into and out of storage; the storage service value networks and architectures found now and expected in the future; what sort of data transfer is expected to and from an audiovisual archive; what transfer protocols to use; and a summary of security and interface issues
Pan-Africanism: A legacy of slavery
No full textPan-Africanism has been studied as an ideology, an epistemology, a theory; and also, as a social movement. However, it has insufficiently been studied as an institutionalized phenomenon and as a producer of knowledge. Most work has been conducted on the emergence of Pan-Africanism in the African diaspora in the mid-to-late 19th century. Yet, far less has been written about Pan-Africanism as an epistemology, that is as a set of ideas and ideologies. In this dissertation, it is argued that Pan Africanism is part of an Africana intellectual tradition. Both Pan-Africanism, as a series of epistemologies – and the Africana intellectual tradition - emerged directly from history and experience. It is therefore argued that epistemic Pan-African knowledge production uses history and experience as its reference. That is, it does not construct its intellectualisms from reading the enlightenment writers, such as is commonly practiced within the European intellectual tradition. Throughout its history, Pan-Africanism saw numerous unreasonable responses from predominantly (former) colonizing powers to reasonable arguments voiced in Pan-African congress petitions and speeches. This happened against the background of a changing world order. Whereas Pan-Africanism started in a situation dominated by the necessity to engage, it moved to a situation in which it increasingly was able to confront (former) colonial and imperial powers. As the circumstances of world politics changed, so did the epicenter of Pan Africanism, and in this dissertation, the author highlights how Pan-Africanism moved its epicenter from the Diaspora to Africa, where it was transformed and institutionalized
Cross-domain authorship attribution combining instance-based and profile-based features notebook for PAN at CLEF 2019
No full textBeing able to identify the author of an unknown text is crucial. Although it is a well-studied field, it is still an open problem, since a standard approach has yet to be found. In this notebook, we propose our model for the Authorship Attribution task of PAN 2019, that focuses on cross-domain setting covering 4 different languages: French, Italian, English, and Spanish. We use n-grams of characters, words, stemmed words, and distorted text. Our model has an SVM for each feature and an ensemble architecture. Our final results outperform the baseline given by PAN in almost every problem. With this model, we reach the second place in the task with an F1-score of 68%
Complex Event Processing Network Usage in WS-BPEL Processes
No full textBiznesa procesu pārvaldības sfērā ir parādījies jauns tirgus virziens, kas ir orientēts uz reāla laika biznesa procesu pārvaldību (RTBPM). No citas puses aktuāla sfēra ir komplekso notikumu apstrāde (angl.Complex Event Processing, CEP) ar CEP dziņiem, kas ir attīstījusies neatkarīgi no biznesa procesu pārvaldības. Diemžēl šobrīd CEP dziņi maz tiek izmantoti RTBPM realizācijai.
Autors paplašina CEP dziņa abstrakciju ar CEP tīklu, kas reprezentē notikumu apstrādes infrastruktūru daudzu sistēmu vidē. Darbā tiek sniegts uz standartiem balstīts CEP tīkla un WS-BPEL (angl. WS-Business Process Execution Language, izvēlēts biznesa procesu modelis) dziņa integrēts RTBPM risinājums, kā arī praktiska šī risinājuma realizācija. Galvenā risinājuma ideja ir ietvert CEP tīkla vaicājumus WSRF (angl. WS-Resource Framework) resursos, kas ļauj WS-BPEL procesiem saņemt notikumus izmantojot WSN (angl. WS-Notification).
Atslēgas vārdi: BPM, RTBPM, CEP, WSRF, WSN, integrācija.Recently a new market segment has emerged in business process management which is oriented towards real time business process management (RTBPM). On the other hand a topical area is Complex Event Processing (CEP) with CEP engines, which has developed independently of business process management. Unfortunately CEP engines are used rarely to implement RTBPM solutions.
Author extends the CEP engine abstraction with a CEP network which represents an infrastructure for event processing in a multi system environment. In this paper author provides CEP network and WS-BPEL (WS-Business Process Execution Language, selected business process model) engine integrated RTBPM solution as well a practical implementation of this solution. Main solution idea is to encapsulate CEP network queries in WSRF (WS-Resource Framework) resources which then allow WS-BPEL processes to receive events using WSN (WS-Notification).
Keywords: BPM, RTBPM, CEP, WSRF, WSN, integration
An empirical study on mutation testing of WS-BPEL programs
No full textNowadays, applications are increasingly deployed as Web services in the globally distributed cloud computing environment. Multiple services are normally composed to fulfill complex functionalities. Business Process Execution Language for Web Services (WS-BPEL) is an XML-based service composition language that is used to define a complex business process by orchestrating multiple services. Compared with traditional applications, WS-BPEL programs pose many new challenges to the quality assurance, especially testing, of service compositions. A number of techniques have been proposed for testing WS-BPEL programs, but only a few studies have been conducted to systematically evaluate the effectiveness of these techniques. Mutation testing has been widely acknowledged as not only a testing method in its own right but also a popular technique for measuring the fault-detection effectiveness of other testing methods. Several previous studies have proposed a family of mutation operators for generating mutants by seeding various faults into WS-BPEL programs. In this study, we conduct a series of empirical studies to evaluate the applicability and effectiveness of various mutation operators for WS-BPEL programs. The experimental results provide insightful and comprehensive guidance for mutation testing of WS-BPEL programs in practice. In particular, our work is the systematic study in the selection of effective mutation operators specifically for WS-BPEL programs
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