Echoes of Persuasion: The Effect of Euphony in Persuasive Communication

While the effect of various lexical, syntactic, semantic and stylistic features have been addressed in persuasive language from a computational point of view, the persuasive effect of phonetics has received little attention. By modeling a notion of euphony and analyzing four datasets comprising persuasive and non-persuasive sentences in different domains (political speeches, movie quotes, slogans and tweets), we explore the impact of sounds on different forms of persuasiveness. We conduct a series of analyses and prediction experiments within and across datasets. Our results highlight the positive role of phonetic devices on persuasion

learning to identify metaphors from a corpus of proverbs

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a computational exploration of exaggeration

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A Creative Dialog Generator for Fallout 4

Peer reviewe

Archaeogenetic analysis of Neolithic sheep from Anatolia suggests a complex demographic history since domestication

Yurtman, ozer, Yuncu et al. provide an ancient DNA data set to demonstrate the impact of human activity on the demographic history of domestic sheep. The authors demonstrate that there may have been multiple domestication events with notable changes to the gene pool of European and Anatolian sheep since the Neolithic. Sheep were among the first domesticated animals, but their demographic history is little understood. Here we analyzed nuclear polymorphism and mitochondrial data (mtDNA) from ancient central and west Anatolian sheep dating from Epipaleolithic to late Neolithic, comparatively with modern-day breeds and central Asian Neolithic/Bronze Age sheep (OBI). Analyzing ancient nuclear data, we found that Anatolian Neolithic sheep (ANS) are genetically closest to present-day European breeds relative to Asian breeds, a conclusion supported by mtDNA haplogroup frequencies. In contrast, OBI showed higher genetic affinity to present-day Asian breeds. These results suggest that the east-west genetic structure observed in present-day breeds had already emerged by 6000 BCE, hinting at multiple sheep domestication episodes or early wild introgression in southwest Asia. Furthermore, we found that ANS are genetically distinct from all modern breeds. Our results suggest that European and Anatolian domestic sheep gene pools have been strongly remolded since the Neolithic

Film önerme sistemlerinde eksik veri tahmini ve lokal & global benzerlik metodlarını birleştiren içerik destekli kolaboratif filtreleme yaklaşımı.

Recently, it has become more and more difficult for the existing web based systems to locate or retrieve any kind of relevant information, due to the rapid growth of the World Wide Web (WWW) in terms of the information space and the amount of the users in that space. However, in today's world, many systems and approaches make it possible for the users to be guided by the recommendations that they provide about new items such as articles, news, books, music, and movies. However, a lot of traditional recommender systems result in failure when the data to be used throughout the recommendation process is sparse. In another sense, when there exists an inadequate number of items or users in the system, unsuccessful recommendations are produced. Within this thesis work, ReMovender, a web based movie recommendation system, which uses a content boosted collaborative filtering approach, will be presented. ReMovender combines the local/global similarity and missing data prediction v techniques in order to handle the previously mentioned sparseness problem effectively. Besides, by putting the content information of the movies into consideration during the item similarity calculations, the goal of making more successful and realistic predictions is achieved.M.S. - Master of Scienc

Computational Approaches to Linguistic Creativity for Real World Applications

Recent years have witnessed a growing interest in computational linguistic creativity, a research field at the boundary between many disciplines including natural language processing, linguistics, psychology, cognitive sciences and humanities. Even though the state-of-the-art in this field has been striding forward in the last decade, real-world applications of computational linguistic creativity are still uncommon. For comparison, computer-enhanced productivity software is significantly augmenting the skills of both casual users and professionals in other areas, such as image and signal processing. In this thesis, we advocate three main points that computational linguistic creativity should address to achieve a higher state of maturity and demonstrate its full potential: 1) the focus on real-world applications, in which state-of-the- art technology can be leveraged to offer solutions with a practical utility for end users; 2) the adoption of an interactive paradigm in which technology collaborates with users to enhance their creativity instead of attempting to replace it; 3) the investigation of the explorative dimension of creativity, as a means to achieve the two previous points by offering users richer ways of interaction and more powerful tools that can solve a larger class of problems.We present three applications that we designed and developed to address these points: 1) a system for the interactive construction of creative names designed as a support tool for copywriters; 2) a platform for the generation of memory tips for second language learning; 3) an explorative and general-purpose framework for creative sentence generation with the potential to be deployed in a wide range of settings, including advertisement, education and entertainment. All these platforms leverage state-of-the-art technology to deliver creative results with the potential to be useful for end users. We demonstrate this point through three different evaluations, in which we show that 1) the generated neologisms are appealing and successful, and that 2) the sentences that we generate have many of the qualities of successful slogans used for advertisement and 3) they are effective mnemonic devices when used as memory aids for second language learning

Katmanlı nanoyapılarda termoelektrik etki

Thesis (Doctoral)--Izmir Institute of Technology, Physics, Izmir, 2019Includes bibliographical references (leaves: 71-85)Text in English; Abstract: Turkish and EnglishIn this thesis, ballistic transport and thermoelectric (TE) properties of semiconducting and dynamically stable two-dimensional materials are investigated by combining first-principles calculations with Landauer formalism. Motivated by finding novel promising TE materials, transition metal dichalcogenides (TMDs) and oxides (TMOs) (namely MX2 with M = Cr, Mo, W, Ti, Zr, Hf; X = O, S, Se, Te) are studied systematically in their 2H- and 1T-phases in Chapter 3. Having computed structural, as well as ballistic electronic and phononic transport properties for all structures, we analyze the thermoelectric properties of the semiconducting ones. We report for the first time that, 2H-phases of four of the studied structures have very promising thermoelectric properties, unlike their 1T-phases. Next, ballistic transport and thermoelectric (TE) properties of group IIImonochalcogenides (group III-VI) are presented in a wide range temperature from 100 K to 1000 K. This large family composed of 25 compounds which stands out with their unique electronic band structures. In addition to Mexican hat shaped (quartic energy-momentum relation) valence band character, some of the structures exhibit valley degeneracies which can occur either in their conduction and valence bands. Moreover, TE and transport calculations are performed for BO and BS monolayers which consist of lightest species in group III-monochalcogenides. Surprisingly, BO and BS monolayers exhibit high TE efficiency at low temperatures. Low thermal conductance at low temperatures and stepwise electronic transmission at the valence band edge are the physical mechanisms behind achieving large ZT.Bu tezde ilk prensip hesapları ve Landauer-Büttiker formülasyonu kullanılarak, dinamik kararlılığa sahip yarı iletken iki boyutlu malzemelerin balistik taşınım ve termoelektrik özellikleri incelenmiştir. Umut vadeden yeni thermoelektrik malzemeler bulma motivasyonuyla, geçiş metali dikalkojenitleri ve oksitleri (MX2 bileşiğinde M =Cr, Mo, W, Ti, Zr, Hf; X = O, S, Se, Te olmak üzere) 2H- ve 1T-fazlarında sistematik olarak çalışılmıştır. Yapısal, elektronik ve fononik özelliklerinin incelenmesinden sonra, yarı-iletken ve dinamik kararlılığa sahip olan tüm yapıların termoelektrik özellikleri analiz edilmiştir. 1T-fazının tersine, 2H-fazındaki dört yapının termoelektrik özelliklerinin oldukça ümit verici olduğu ilk defa raporlanmıştır. Geçiş metali ve oksitlerinden sonra, grup III monokalkojenitlerinin balistik taşınım ve termoelektrik özellikleri 100 K’den 1000 K’e kadar geniş bir sıcaklık aralığında sunuldu. 25 bileşikten oluşan bu büyük aile, özgün elektronik bant yapısına sahip olmaları sebebiyle, geriye kalan iki boyutlu yapılar arasında öne çıkmaktadır. Meksika şapkası şeklindeki valans bant yapısına ek olarak bazı yapılar hem iletim hem de valans bandında ortaya çıkabilen vadi dejenerelikleri sergiler. Ayrıca, group III-monokalkojenitlerinden en hafif elementleri içeren BO ve BS tek tabakalı yapılarının taşınım ve termoelektrik özellikleri geniş bir sıcaklık aralığında hesaplanmıştır. Şaşırtıcı bir şekide, BO ve BS tek tabakalıları düşük sıcaklıklarda oldukça yüksek termoelektrik verim vermişlerdir. Düşük sıcaklıklarda yüksek termoelektrik verime sahip olmalarının arkasındaki fiziksel mekanizma, düşük sıcaklıklarda düşük termal iletkenliğe ve termoelektrik parformansını arttıran valans bant kenarında basamaklı elektronik iletime sahip olmalarıdır

Katmanlı nanoyapılarda termoelektrik etki

Thesis (Doctoral)--Izmir Institute of Technology, Physics, Izmir, 2019Includes bibliographical references (leaves: 71-85)Text in English; Abstract: Turkish and EnglishIn this thesis, ballistic transport and thermoelectric (TE) properties of semiconducting and dynamically stable two-dimensional materials are investigated by combining first-principles calculations with Landauer formalism. Motivated by finding novel promising TE materials, transition metal dichalcogenides (TMDs) and oxides (TMOs) (namely MX2 with M = Cr, Mo, W, Ti, Zr, Hf; X = O, S, Se, Te) are studied systematically in their 2H- and 1T-phases in Chapter 3. Having computed structural, as well as ballistic electronic and phononic transport properties for all structures, we analyze the thermoelectric properties of the semiconducting ones. We report for the first time that, 2H-phases of four of the studied structures have very promising thermoelectric properties, unlike their 1T-phases. Next, ballistic transport and thermoelectric (TE) properties of group IIImonochalcogenides (group III-VI) are presented in a wide range temperature from 100 K to 1000 K. This large family composed of 25 compounds which stands out with their unique electronic band structures. In addition to Mexican hat shaped (quartic energy-momentum relation) valence band character, some of the structures exhibit valley degeneracies which can occur either in their conduction and valence bands. Moreover, TE and transport calculations are performed for BO and BS monolayers which consist of lightest species in group III-monochalcogenides. Surprisingly, BO and BS monolayers exhibit high TE efficiency at low temperatures. Low thermal conductance at low temperatures and stepwise electronic transmission at the valence band edge are the physical mechanisms behind achieving large ZT.Bu tezde ilk prensip hesapları ve Landauer-Büttiker formülasyonu kullanılarak, dinamik kararlılığa sahip yarı iletken iki boyutlu malzemelerin balistik taşınım ve termoelektrik özellikleri incelenmiştir. Umut vadeden yeni thermoelektrik malzemeler bulma motivasyonuyla, geçiş metali dikalkojenitleri ve oksitleri (MX2 bileşiğinde M =Cr, Mo, W, Ti, Zr, Hf; X = O, S, Se, Te olmak üzere) 2H- ve 1T-fazlarında sistematik olarak çalışılmıştır. Yapısal, elektronik ve fononik özelliklerinin incelenmesinden sonra, yarı-iletken ve dinamik kararlılığa sahip olan tüm yapıların termoelektrik özellikleri analiz edilmiştir. 1T-fazının tersine, 2H-fazındaki dört yapının termoelektrik özelliklerinin oldukça ümit verici olduğu ilk defa raporlanmıştır. Geçiş metali ve oksitlerinden sonra, grup III monokalkojenitlerinin balistik taşınım ve termoelektrik özellikleri 100 K’den 1000 K’e kadar geniş bir sıcaklık aralığında sunuldu. 25 bileşikten oluşan bu büyük aile, özgün elektronik bant yapısına sahip olmaları sebebiyle, geriye kalan iki boyutlu yapılar arasında öne çıkmaktadır. Meksika şapkası şeklindeki valans bant yapısına ek olarak bazı yapılar hem iletim hem de valans bandında ortaya çıkabilen vadi dejenerelikleri sergiler. Ayrıca, group III-monokalkojenitlerinden en hafif elementleri içeren BO ve BS tek tabakalı yapılarının taşınım ve termoelektrik özellikleri geniş bir sıcaklık aralığında hesaplanmıştır. Şaşırtıcı bir şekide, BO ve BS tek tabakalıları düşük sıcaklıklarda oldukça yüksek termoelektrik verim vermişlerdir. Düşük sıcaklıklarda yüksek termoelektrik verime sahip olmalarının arkasındaki fiziksel mekanizma, düşük sıcaklıklarda düşük termal iletkenliğe ve termoelektrik parformansını arttıran valans bant kenarında basamaklı elektronik iletime sahip olmalarıdır