263,632 research outputs found
Overview of the Track on Author Profiling and Deception Detection in Arabic
No full text[EN] This overview presents the Author Profiling and Deception Detection in Arabic (APDA) shared task at PAN@FIRE 2019. Two have been the main aims of this years task: i) to profile the age, gender and native language of a Twitter user; ii) to determine whether an Arabic text is deceptive or not in two different genres: Twitter and news headlines. For this purpose we have created three corpora in Arabic. Altogether, the approaches of 13 participants are evaluated.This publication was made possible by NPRP 9-175-1-033 from the Qatar National Research Fund (a member of Qatar Foundation). The findings achieved
herein are solely the responsibility of the authors. The work of Paolo Rosso was
also partially funded by Generalitat Valenciana under grant PROMETEO/2019/121.Rangel, F.; Rosso, P.; Charfi, A.; Zaghouani, W.; Ghanem, B.; Sánchez-Junquera, J. (2019). Overview of the Track on Author Profiling and Deception Detection in Arabic. CEUR-WS.org. 70-83. https://riunet.upv.es/handle/10251/180742S708
Overview of the 8th Author Profiling Task at PAN 2020: Profiling Fake News Spreaders on Twitter
No full text[EN] This overview presents the Author Profiling shared task at
PAN 2020. The focus of this year's task is on determining whether or not
the author of a Twitter feed is keen to spread fake news. Two have been
the main aims: (i) to show the feasibility of automatically identifying
potential fake news spreaders in Twitter; and (ii) to show the difficulty
of identifying them when they do not limit themselves to just retweet
domain-specific news. For this purpose a corpus with Twitter data has
been provided, covering the English and Spanish languages. Altogether,
the approaches of 66 participants have been evaluated.First of all we thank the participants: 66 this year, record in terms of participants at PAN Lab since 2009! We have to thank also Martin Potthast, Matti
Wiegmann, and Nikolay Kolyada to help with the 66 Virtual Machines in the
TIRA platform. We thank Symanto for sponsoring the ex aequo award for the two best performing systems at the author profiling shared task of this year. The
work of Paolo Rosso was partially funded by the Spanish MICINN under the
research project MISMIS-FAKEnHATE on Misinformation and Miscommunication in social media: FAKE news and HATE speech (PGC2018-096212-B-C31).
The work of Anastasia Giachanou is supported by the SNSF Early Postdoc
Mobility grant under the project Early Fake News Detection on Social Media,
Switzerland (P2TIP2 181441).Rangel, F.; Giachanou, A.; Ghanem, BHH.; Rosso, P. (2020). Overview of the 8th Author Profiling Task at PAN 2020: Profiling Fake News Spreaders on Twitter. CEUR Workshop Proceedings. 2696:1-18. https://riunet.upv.es/handle/10251/166528S118269
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Neuromuscular scoliosis: Surgical considerations and management of complications
No full textScoliosis deformity is frequently diagnosed in Cerebral palsy (CP) patients. Its incidence and progression is related to the functional level of the patient. The direct etiology of scoliosis in CP patients is not clear, but its natural history is well documented. A little place for conservative management is reserved for bracing and sitting adjustments for patients with small curves. When surgery is indicated, preoperative assessment and multidisciplinary approach remain very important as they can help prevent major complications especially infection. Pelvic obliquity correction through fixation to the pelvis as well as adequate seating remains the most important objectives of treatment. Surgery has changed during the last 50 years especially for instrumentation, technique and approach, but randomized control studies are still needed to answer conflictual questions, as available literature could not favor any technique
Neuromuscular scoliosis: Surgical considerations and management of complications
No full textScoliosis deformity is frequently diagnosed in Cerebral palsy (CP) patients. Its incidence and progression is related to the functional level of the patient. The direct etiology of scoliosis in CP patients is not clear, but its natural history is well documented. A little place for conservative management is reserved for bracing and sitting adjustments for patients with small curves. When surgery is indicated, preoperative assessment and multidisciplinary approach remain very important as they can help prevent major complications especially infection. Pelvic obliquity correction through fixation to the pelvis as well as adequate seating remains the most important objectives of treatment. Surgery has changed during the last 50 years especially for instrumentation, technique and approach, but randomized control studies are still needed to answer conflictual questions, as available literature could not favor any technique
シリア・ラッカ県，Tell Ghanem al-Ali 周辺に発達する河成段丘
No full textRiver terraces around Tell Ghanem al-Ali, Raqqa, Syria, were studied to clarify geological and environmental settings of the tell. Five levels of terraces are recognizable on the basis of available topographic maps and field observation: terraces I (250 m a.s.l.), II (242–245 m), III (237–240 m), IV (233–234 m) and V (ca. 230 m) in descending order. Tell Ghanem al-Ali is located on the terrace V (lowermost terrace), which is 1–2 m higher than the flood plain of Euphrates. Sediments around the tell are divided into five units: channel and flood plain deposits of modern Euphrates, sediments of the lowermost terrace and Units 1–3. Stratigraphic relationship among them suggests that Unit 1, Unit 2 and sediment of the lowermost terrace were deposited in the depositional phase of this area, and that terraces I–IV were formed in the erosional phase. Stratigraphy of the Tell Ghanem al-Ali and the lowermost terrace, and available 14C dating data indicate that settlement of the tell began during the formation of the lowermost terrace at ca. 3000 cal y BC
Electrochemical Synthesis of Nanostractured porous materials using Liquid Crystal and Colloidal Templates and their Magnetic and Optical properties
No full textThe objective of this thesis is to synthesise new classes of nanostructured porous materials that have ordered pore structures on multiple and vastly different length scales for improved catalytic, magnetic and optical properties. This is achieved by electrochemical deposition using two different templating approaches, lyotropic liquid crystalline and colloidal templates. In the first approach, nanostructured metals such as cobalt, copper and lead with high degrees of mesoscopic ordering and different phase structures, were prepared by the electrochemical reduction of the metal ions dissolved on the aqueous domain of the hexagonal (H), cubic (I) or lamella (Lα) liquid crystalline phases of Brij 56 and Brij 78 surfactants. The perodicities and pore diameters of the resulting mesoporous meals are varied in a controlled way over the range from 5 to 11 nm. This was achieved by changing the alkyl chain length of the surfactant or by the addition of an hydrophobic agent. The resulting nanostructured mesoporous cobalt film was shown to behave as a hard magnet in comparison to bulk polycrystalline cobalt.In the second templating approach, materials such as gold, platinum, cobalt, palladium, lead, nickel, nickel iron alloy, lead oxides and conducting polymer films with highly ordered macroporous structures were prepared by the electrochemical deposition within the interstitial spaces between polystyrene latex spheres assembled on conducting substrates. After removing the sphere templates, the resulting films show well-formed, regular, two- and three-dimensional macroporous networks consisting of spherical pores arranged in a highly ordered face centred cubic (fcc) structure. The spherical voids are interconnected by a series of smaller windows that form an open porous structure embedded in the material framework.</p
シリア・ラッカ県，Tell Ghanem al-Ali 周辺に発達する河成段丘
No full text2010-12-25River terraces around Tell Ghanem al-Ali, Raqqa, Syria, were studied to clarify geological and environmental settings of the tell. Five levels of terraces are recognizable on the basis of available topographic maps and field observation: terraces I (250 m a.s.l.), II (242–245 m), III (237–240 m), IV (233–234 m) and V (ca. 230 m) in descending order. Tell Ghanem al-Ali is located on the terrace V (lowermost terrace), which is 1–2 m higher than the flood plain of Euphrates. Sediments around the tell are divided into five units: channel and flood plain deposits of modern Euphrates, sediments of the lowermost terrace and Units 1–3. Stratigraphic relationship among them suggests that Unit 1, Unit 2 and sediment of the lowermost terrace were deposited in the depositional phase of this area, and that terraces I–IV were formed in the erosional phase. Stratigraphy of the Tell Ghanem al-Ali and the lowermost terrace, and available 14C dating data indicate that settlement of the tell began during the formation of the lowermost terrace at ca. 3000 cal y BC.departmental bulletin pape
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