810 research outputs found
Feedback can be superior to observational training for both rule-based and information-integration category structures
The effects of two different types of training on rule-based and information-integration category learning were investigated in two experiments. In observational training, a category label is presented, followed by an example of that category and the participant's response. In feedback training, the stimulus is presented, the participant assigns it to a category and then receives feedback about the accuracy of that decision. Ashby, Maddox, and Bohil (2002) reported that feedback training was superior to observational training when learning information-integration category structures, but that training type had little effect on the acquisition of rule-based category structures. These results were argued to support the COVIS dual-process account of category learning. However, a number of non-essential differences between their rule-based and information-integration conditions complicate interpretation of these findings. Experiment 1 controlled, between category structures, for participant error rates, category separation, and the number of stimulus dimensions relevant to the categorization. Under these more controlled conditions, rule-based and information-integration category structures both benefitted from feedback training to a similar degree. Experiment 2 maintained this difference in training type when learning a rule-based category that had otherwise been matched, in terms of category overlap and overall performance, with the rule-based categories used in Ashby et al. These results indicate that differences in dimensionality between the category structures in Ashby et al. is a more likely explanation for the interaction between training type and category structure than the dual-system explanation they offered
Real-Time Statistical Speech Translation
This research investigates the Statistical Machine Translation approaches to
translate speech in real time automatically. Such systems can be used in a
pipeline with speech recognition and synthesis software in order to produce a
real-time voice communication system between foreigners. We obtained three main
data sets from spoken proceedings that represent three different types of human
speech. TED, Europarl, and OPUS parallel text corpora were used as the basis
for training of language models, for developmental tuning and testing of the
translation system. We also conducted experiments involving part of speech
tagging, compound splitting, linear language model interpolation, TrueCasing
and morphosyntactic analysis. We evaluated the effects of variety of data
preparations on the translation results using the BLEU, NIST, METEOR and TER
metrics and tried to give answer which metric is most suitable for PL-EN
language pair.Comment: machine translation, polish englis
Preparing Books for Children from Birth to Age Six: The Approach of Appropriateness for the Child
Children’s books must primarily be appropriate for children so that they could be a significant stimulus in children’s lives. In other words, it is essential that the concepts child reality, literary criteria and artist sensitivity be reflected in books in order to create children’s books. From birth to age 6, the fact that children’s books are written in such a standpoint can help children in this age range have love and habit of reading. In this respect, this article proposes that children’s books from birth to age 6 be written primarily according to the principle of appropriateness for children. With this respect, firstly, the conceptual framework of the principle of appropriateness was established through scientific evidence, and then this principle was reflected in the design, contextual and didactic attributes of children’s books from birth to age 6. While forming this conception, birth-24 months, 24-48 months and 48-64 months age groups which Piaget adopted in Cognitive Theory were prioritized. Thus, an approach to write and publish books appropriate for children of these age groups and in different development levels has been developed. Keywords: Appropriateness for children, Child Reality, Literary Criteria, Artist Sensitivity, Children’s books
Tropical savannas and dry forests
This is the author accepted manuscript. The final version is available from Elsevier via the DOI in this recordIn the tropics, research, conservation and public attention focus on rain forests, but this neglects that half of the global tropics have a seasonally dry climate. These regions are home to dry forests and savannas (Figures 1 and 2), and are the focus of this Primer. The attention given to rain forests is understandable. Their high species diversity, sheer stature and luxuriance thrill biologists today as much as they did the first explorers in the Age of Discovery. Although dry forest and savanna may make less of a first impression, they support a fascinating diversity of plant strategies to cope with stress and disturbance including fire, drought and herbivory. Savannas played a fundamental role in human evolution, and across Africa and India they support iconic megafauna. Pennington et al. introduce seasonally dry biomes in the tropics – savannahs and dry forests
Due process in dual process: Model-recovery simulations of decision-bound strategy analysis in category learning
This is the author accepted manuscript. The final version is available from Wiley via the DOI in this record.Behavioral evidence for the COVIS dual-process model of
category learning has been widely reported in over a hundred
publications (Ashby and Valentin, 2016). It is generally
accepted that the validity of such evidence depends on the
accurate identification of individual participants’ categorization
strategies, a task that usually falls to Decision Bound
analysis (Maddox and Ashby, 1993). Here, we examine the
accuracy of this analysis in a series of model-recovery simulations.
In Simulation 1, over a third of simulated participants
using an Explicit (conjunctive) strategy were misidentified
as using a Procedural strategy. In Simulation 2, nearly
all simulated participants using a Procedural strategy were
misidentified as using an Explicit strategy. In Simulation 3,
we re-examined a recently-reported COVIS-supporting dissociation
(Smith et al., 2014), and found that these misidentification
errors permit an alternative, single-process, explanation
of the results. Implications for due process in the
future evaluation of dual-process theories, including recommendations
for future practice, are discussed
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Parameterizing Phrase Based Statistical Machine Translation Models: An Analytic Study
The goal of this dissertation is to determine the best way to train a statistical machine translation system. I first develop a state-of-the-art machine translation system called Phrasal and then use it to examine a wide variety of potential learning algorithms and optimization criteria and arrive at two very surprising results. First, despite the strong intuitive appeal of more recent evaluation metrics, training to these metrics is no better than the older traditional approach of training to BLEU. Second, the most widely used learning algorithm for training machine translation systems, called minimum error rate training (MERT), works no better than standard machine learning algorithms such as log-linear models. This result demonstrates that machine translation does not require using a special purpose learning algorithm, but rather can be approached in a manner similar to other natural language processing and machine learning tasks. These results have a number of important implications. Contrary to existing beliefs, work on improving machine translation evaluation metrics and then training to the improved metrics will not in itself result in improved translation systems. Even more significantly, the widespread usage of MERT has limited the sort of models that can be used for machine translation, as it does not scale well to large numbers of features. If it is not necessary to use MERT to train competitive systems, machine translation can be treated similarly to any other natural language processing task with models that include arbitrarily large feature sets
İZMİR İLİ KARANFİL ÜRETİM ALANLARINDA FUSARİUM SOLGUNLUĞU (Fusarium oxysporum f. sp. dianthi) VE MÜCADELESİ
İZMİR İLİ KARANFİL ÜRETİM ALANLARINDA FUSARİUM
SOLGUNLUĞU (Fusarium oxysporum f. sp. dianthi) VE
MÜCADELESİ
Ceren CER
Doktora Tezi, Bitki Koruma Anabilim Dalı
Tez Danışmanı: Prof. Dr. Seher BENLİOĞLU
2021, 171 sayfa
Dünyada ve ülkemizde karanfil üretiminde karşılaşılan en yaygın ve tahripkâr
biyotik etmen, Fusarium solgunluğuna sebep olan Fusarium oxysporum f. sp.
dianthi (Fod)’dir. Bu tez çalışmasında, 2016 yılı Nisan-Ağustos ayları arasında
İzmir’in örtü altı kesme çiçek karanfil alanlarında yapılan survey ve izolasyon
çalışmaları sonunda hastalığın bulunma oranının ortalama %55 civarında olduğu
saptanmış, toplam 100 Fusarium spp. izolatı elde edilmiştir. Klasik ve moleküler
tanı çalışmaları sonucunda izolatların 84’ü Fusarium oxysporum f. sp. dianthi, 16’sı
ise Fusarium proliferatum olarak tanılanmıştır. Irka özgü primer çiftleri ile yapılan
PCR testleri sonucunda ise 84 Fod izolatının 67’sinin Fod ırk 2, 16’sının da Fod ırk
1/8 olduğu belirlenmiştir. Karanfil Solgunluğu ile mücadele çalışmalarında, in
vitro’da en iyi sonucu prochloraz ve bromuconazole, in vivo’da ise %71,22 etki ile
bromuconazole vermiştir. Toprak dezenfeksiyonu uygulamalarının 1. yılında
%78,32 etki ile solarizasyon, 2.ci’de % 77,2 ile dazomet, 3.cü’de % 86,30 ile
dimethyl disulfide (DMDS) en iyi uygulamalar oluştur. Fungisit denemelerinde 1.
yıl fide bulaşıklığının çok yüksek ve parseller arasında varyasyonun yüksek olması,
2. yılda ise hastalığın çok düşük olması nedeniyle beklenen sonuçlar elde
edilememiştir.İÇİNDEKİLER
KABUL VE ONAY SAYFASI.............................................................................. iii
BİLİMSEL ETİK BİLDİRİM SAYFASI ................................................................v
ÖZET .................................................................................................................... vii
ABSTRACT............................................................................................................ix
ÖNSÖZ ...................................................................................................................xi
İÇİNDEKİLER .................................................................................................... xiii
KISALTMALAR VE SİMGELER DİZİNİ........................................................ xvii
ŞEKİLLER DİZİNİ...............................................................................................xix
ÇİZELGELER DİZİNİ ...................................................................................... xxiii
EKLER DİZİNİ................................................................................................. xxvii
1. GİRİŞ ...................................................................................................................1
2. KAYNAK ÖZETLERİ ........................................................................................8
2.1. Karanfilde Fusarium Solgunluğu Konusunda Ülkemizde Yapılan
Araştırmalar ...................................................................................................8
2.2. Karanfilde Fusarium Solgunluğu Konusunda Dünyada Yapılan
Araştırmalar .................................................................................................11
2.2.1. Fod’nin Hastalık Fizyolojisi ve Bazı Karanfil Çeşitlerinin Hastalığa
Reaksiyonu Üzerine Yapılan Araştırmalar ..................................................11
2.2.2. Fod’nin Irkları ve Vejetatif Uyum Gruplarının Klasik ve Moleküler
Yöntemlerle Çalışıldığı Araştırmalar...........................................................13
2.2.3. Fod’nin Mücadelesi Üzerine Yapılan Araştırmalar .....................................19
3. MATERYAL VE YÖNTEM .............................................................................29
3.1. Materyal ..........................................................................................................29
3.1.1. Bitkisel Materyal..........................................................................................29
3.1.2. Fungal Materyal ...........................................................................................29
3.1.3. Moleküler Çalışmalarda Kullanılan Materyaller..........................................29
xiv
3.1.4. Fungisitler ve Biyolojik Preparatlar ............................................................ 29
3.1.5. Toprak Dezenfeksiyonu Çalışmalarında Kullanılan Materyaller................ 30
3.2. Yöntem........................................................................................................... 30
3.2.1. Survey Çalışmaları ...................................................................................... 30
3.2.2. İzolasyon Çalışmaları .................................................................................. 31
3.2.3. Elde Edilen İzolatların Patojenisite Çalışmaları ve Virulenslik
Düzeylerinin Belirlenmesi .......................................................................... 33
3.2.3.1. Karanfil gövde parçalarına inokulasyon yöntemi..................................... 33
3.2.3.2. Köksüz karanfil çeliklerine spor süspansiyonunun inokulasyonu............ 34
3.2.3.3. Karanfil fideleri ile yürütülen patojenisite çalışmaları............................. 35
3.2.4. Patojen İzolatların Tanılanması................................................................... 37
3.2.4.1. Tek spor izolatların elde edilmesi............................................................. 37
3.2.4.2. Klasik tanılama......................................................................................... 37
3.2.4.3. Moleküler tanılama................................................................................... 38
3.2.5. Karanfil Solgunluğu ile Mücadele Çalışmaları ........................................... 40
3.2.5.1. In vitro’da fungisitlerin etkinliklerinin belirlenmesi ................................ 40
3.2.5.2. In vivo’da bazı fungisitlerin etkinliklerinin belirlenmesi.......................... 41
3.2.5.3. Arazi çalışmaları....................................................................................... 43
4. BULGULAR ..................................................................................................... 59
4.1. Survey Çalışmaları ......................................................................................... 59
4.2. İzolasyon Çalışmaları ..................................................................................... 59
4.3. Elde Edilen İzolatların Patojenisite Çalışmaları ve Virulenslik Düzeylerinin
Belirlenmesi ................................................................................................ 60
4.3.1. Karanfil Gövde Parçalarına İnokulasyon Yöntemi ..................................... 60
4.3.2. Köksüz Karanfil Çeliklerine Spor Süspansiyonunun İnokulasyonu ........... 62
4.3.3. Karanfil Fideleri ile Yürütülen Patojenisite Çalışmaları ............................. 63
xv
4.4. Patojen İzolatların Tanılanması.......................................................................65
4.4.1. Klasik Tanılama ...........................................................................................65
4.4.2. Moleküler Tanılama .....................................................................................83
4.5. Karanfil Solgunluğu ile Mücadele Çalışmaları...............................................97
4.5.1. In vitro’da Fungisitlerin Etkinliklerinin Belirlenmesi..................................97
4.5.2. In vivo’da Bazı Fungisitlerin Etkinliklerinin Belirlenmesi ........................101
4.5.3.Arazi Çalışmaları.........................................................................................104
4.5.3.1. 2015-2016 üretim sezonu çalışmaları......................................................104
4.5.3.2. 2016-2017 üretim sezonu çalışmaları......................................................108
4.5.3.3. 2017-2018 üretim sezonu çalışmaları......................................................113
5. TARTIŞMA VE SONUÇ.................................................................................122
KAYNAKLAR ....................................................................................................152
EKLER.................................................................................................................165
ÖZGEÇMİŞ .........................................................................................................16
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