A Machine Learning Approach For Opinion Holder Extraction In Arabic Language

Opinion mining aims at extracting useful subjective information from reliable amounts of text. Opinion mining holder recognition is a task that has not been considered yet in Arabic Language. This task essentially requires deep understanding of clauses structures. Unfortunately, the lack of a robust, publicly available, Arabic parser further complicates the research. This paper presents a leading research for the opinion holder extraction in Arabic news independent from any lexical parsers. We investigate constructing a comprehensive feature set to compensate the lack of parsing structural outcomes. The proposed feature set is tuned from English previous works coupled with our proposed semantic field and named entities features. Our feature analysis is based on Conditional Random Fields (CRF) and semi-supervised pattern recognition techniques. Different research models are evaluated via cross-validation experiments achieving 54.03 F-measure. We publicly release our own research outcome corpus and lexicon for opinion mining community to encourage further research

Studying the Adaptive Comfort Model - A Case Study in Arid Climate: Cairo, Egypt

This study focused on investigating the thermal environment and its effect on the comfort mechanism in the hot arid climate of Cairo, Egypt. The effects of individual factors on the perception and preference of occupants in three educational buildings in the Greater Cairo Region were studied

Waterjetting as a method of compacting native trench backfill.

Dept. of Civil and Environmental Engineering. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1977 .S468. Source: Masters Abstracts International, Volume: 40-07, page: . Thesis (M.A.Sc.)--University of Windsor (Canada), 1977

Two Syriac masoretic signs : Nagoda and Metappeyana.

Nagoda and Metappeyana are lines inserted in Syriac biblical manuscripts, among the Easterners (or Nestorians); Nagoda appears above words and Metappeyana below or on the line between words. The confinement of these lines to biblical texts suggests that they were designed to ensure proper enunciation in public reading. Chapter 1 presents the treatment of these lines by classical Syriac authorities - Elias of Tirhan, Joseph bar Malkon, John bar Zocbi, Bar Hebraeus, and two anonymous treatises. The Syriac texts are presented with English translation and critical notes, and a comparative table follows. While some agreement exists regarding the role of Metappeyana (said to appear before words beginning with vowelled consonant, after construct nouns and certain particles), these authorities' prescriptions for Nagoda show bewildering variety. Chapter 2 summarises the findings of modern writers (notably Ewald, Martin, Duval, Merx and archibishop David). While Ewald based himself on biblical manuscripts alone, the others relied in varying degrees on biblical texts and Syriac classical works together, and all reached different results. In Chapter 3, the text of Genesis in Add. 12138 has been analysed in itself with certain references to Syrian grammarians. Metappeyana appears to join successive words, and to cancel the word stress on the former word. Nagoda appears to indicate a special intonation, showing the inter-relations of words and clauses within the verse. The common notion that Nagoya and Metappeyana are straightforward opposites and therefore incompatible is rejected. Chapter 4 surveys the use of the lines in other manuscripts. While manuscripts vary in their precise usage, partly in accordance with varying tastes, the basic functions inferred in Chapter 3 still appear applicable. While the Syrian grammarians' views on Metappeyana seem more or less accurate, their treatment of Nagoda has been largely vitiated by the illusion that it is simply the opposite of Metappeyana

perceptions of heads of families towards the requirements of child empowerment in the era of the fourth industrial revolution

تستهدف الدراسة التعرف على تصورات أرباب الأسر حول طبيعة عصر الثورة الصناعية الرابعة ومدى إدراكهم لملامحها ومخاطرها على الطفل، وحصر متطلبات التمكين الذاتي والموضوعي للطفل في عصر الثورة الصناعية الرابعة من وجهة نظر أفراد العينة، باتباع المنهج المسحي وتطبيق صحفية الاستبيان على عينة قدرها (384) مفردة من أرباب الأسر تم اختيارها بطريقة غير عشوائية، وقد توصلت الدراسة إلى أن ملامح الثورة الصناعية الرابعةـ ـ تتمثل في التجارة الإلكترونية، والاقتصاد الرقمي، والتواصل الاجتماعي عبْر المجتمع الافتراضي، كما أن الطفل قد يتعرض لمخاطر عدة منها؛ الإدمان التكنولوجي، والشعور بالإرهاق، وتغيير سلوكيات الطفل، وفقدان الثقة بالنفس، والتعرض لمشاهدة المواد الإباحية والعنف، كما يتضمن مفهوم تمكين الطفل مجموعة القدرات والمهارات التي تشتمل على قدرة الطفل على التعلم الذاتي عبْر الإنترنت، وأن أهم متطلبات تمكين الطفل ذاتياً تنمية الاتجاهات الإيجابية للطفل نحو استخدام التكنولوجيا، وتعزيز قيم الثقافة الإلكترونية ورفع وعي الطفل بمخاطر التعامل مع التكنولوجيا، وتنمية مهارات الطفل في مجال إدارة الذات والتعاون مع الآخرين. أما متطلبات تمكين الطفل موضوعياً فتشمل تسهيل امتلاك الطفل لوسائل التكنولوجيا الحديثة، وتضمين المقررات التعليمية مفاهيم الذكاء الاصطناعي والنانو تكنولوجي.The study aims to identify the perceptions of heads of families to the nature of the era of the Fourth Industrial Revolution and the extent of their awareness of its features and risks to the child, and to identify the requirements for self- and objective empowerment, by following the survey method and applying a Questionnaire journalist sample of (384) single heads of households in the cities. distance education and the virtual teacher, and the child may be exposed to several risks, including; Technological addiction, loss of self-confidence, exposure to pornography and violence, and the concept of child empowerment includes a set of abilities and skills that include the child’s ability to self-learning via the Internet, and that the most important requirements for self-empowerment of the child are the development of positive attitudes for the child Towards the use of technology, promoting the values of electronic culture, raising the child's awareness of the risks of dealing with technology, and developing the child's skills in the field of self-management and cooperation with others. As for the requirements of objectively empowering the child, they include facilitating the child’s ownership of modern technology, and to include in educational curricula the concepts of artificial intelligence and nanotechnology

Electronic Structures and Optical Properties for Nano Particles: Experimental and Theoretical Calculations

The use of copper nanoparticles (Cu NPs) and copper oxide nanoparticles (Cu2O NPs) has increased dramaticallyboth in the medical and industrial fields. In the present study, we have used various techniques like, dynamic light scattering(DLS) for particle size, zeta potential determination, X-ray diffraction (XRD), transmission electron microscope (TEM) andscanning electron microscope (SEM) for development and characterization of Cu and Cu2O NPs. We have also performed theab-initio calculations based on the density functional theory (DFT) where the theoretical results are in well accordance with theexperimental reports. The Hubbard correction is included over the generalized gradient approximation (GGA) for a betterdescription of Cu and Cu2O NPs. The plot of densities of states (DOS) and energy band structures of Cu and Cu2Onanocrystals predicts the metallic and semiconducting nature of Cu and Cu2O, respectively. The energy bands and DOS showsstrong hybridization of Cu-O and predicts the metallic nature of Cu and semiconducting nature of Cu2O. The optical absorptionresults show that both the Cu2O and Cu samples are absorbing strongly at the minimum energy. The band structure of Cu Nanocrystals reveals a metallic nature where the valence band crosses the Fermi energy level at W point. However, an indirectenergy band gap can be seen above the EF.Fil: Aly, Abeer E.. El Salam Higher Institution For Engineering And Tech; EgiptoFil: Fahmy, Heba M.. Faculty Of Science, Cairo University; EgiptoFil: Medina Chanduvi, Hugo Harold. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Gil Rebaza, Arles Víctor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Errico, Leonardo Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Universidad Nacional del Noroeste de la Provincia de Buenos Aires; ArgentinaFil: Thapa, B.. Kuseong College; Indi

Report of the First Meeting of the Middle East and Eastern Europe Rabies Expert Bureau, Istanbul, Turkey (June 8-9, 2010)

Rabies is a threat in all parts of the world where animal reservoirs persists, including Eastern Europe and the Middle East. Rabies experts from seven Middle East and Eastern European countries (Croatia, Egypt, Georgia, Iran, Serbia, Turkey, and Ukraine) met for two days in Istanbul, Turkey (June 8-9, 2010), to exchange information on the epidemiological situation concerning human and animal rabies in their respective countries and to discuss strategies for rabies elimination and control. They decided to establish a regional network, the Middle East and Eastern Europe Rabies Expert Bureau (MEEREB), a regional network of experts, to increase collaboration in rabies prevention and control at the local, regional, and global levels

Laboratory findings in COVID-19 - alterations of hematological, immunological, biochemical, hormonal and other lab panels: a narrative review

Up to the present date, according to the official reports of the World Health Organization (WHO), 205,338,159 patients have been confirmed with the coronavirus disease (COVID-19) and 4,333,094 have died as a consequence of this infectious disorder. The majority of COVID-19 patients will develop hematological, biochemical, immunological, hormonal and other complex alterations of their laboratory data which may be diagnosed using different biomarkers. In this paper, we review the alterations of the hematology, immunology, biochemistry, hormonal and other laboratory panels discovered in the subjects diagnosed with SARS-CoV-2 infection, based on the available data in the literature