Hierarchical representation of video sequences for annotation

MENDİ, Engin

Video annotation is an important issue in video content management systems. Rapid growth of the digital video data has created a need for efficient and reasonable mechanisms that can ease the annotation process. In this paper, we propose a novel hierarchical clustering based system for video annotation. The proposed system generates a top-down hierarchy of the video streams using hierarchical k-means clustering. A tree-based structure is produced by dividing the video recursively into sub-groups, each of which consists of similar content. Based on the visual features, each node of the tree is ...Daha fazlası

Makale 2014 Elsevier Ltd 3 Görüntülenme

Synthesis of Various Calix [4] arene Derivatives with Mercaptoalkyl Chains and Their Application in Removing Cr (VI) from Aqueous Solution

SAYIN, Serkan | YILDIZ, Hüseyin Bekir | EYMÜR, Serkan

Four different mercaptoalkyl-substituted calixarene derivatives (5,11,17, 23-tetra-tert-butyl-25,27-bis(3-mercaptopropoxyl)-26,28-dihydroxycalix [4]arene, 25,27-bis(3-mercaptopropoxyl)-26,28-dihydroxycalix[4]arene, 25,27-bis(5-mercaptopentanoxyl)-26,28-dihydroxycalix[4]areneand5,17di-tert-butyl-11,23-di-carboxyl-26,28-bis(3-mercaptopropoxyl)-25,27-dihydroxycalix[4]arene) were synthesized. Their structures were characterized by Fourier transform infrared spectroscopy (FTIR), 1H and 13C NMR spectroscopy, and elemental analysis techniques. Moreover, their extraction capabilities at different para ...Daha fazlası

Makale 2018 Polycyclic Aromatic Compounds (Taylor and Francis) 5 Görüntülenme

Tagging accuracy analysis on part-of-speech taggers

YUMUŞAK, Semih | DOĞDU, Erdoğan | KODAZ, Halife

Part of Speech (POS) Tagging can be applied by several tools and several programming languages. This work focuses on the Natural Language Toolkit (NLTK) library in the Python environment and the gold standard corpora installable. The corpora and tagging methods are analyzed and compared by using the Python language. Different taggers are analyzed according to their tagging accuracies with data from three different corpora. In this study, we have analyzed Brown, Penn Treebank and NPS Chat corpuses. The taggers we have used for the analysis are; default tagger, regex tagger, n-gram taggers. We h ...Daha fazlası

Makale 2014 2 Görüntülenme

Gabion Tipi Dayanma Yapıları

URAY, Esra | TAN, Özcan

Malzeme üretim ve kaplama teknolojilerindeki gelişmeler sonucu gelişmiş ülkelerde daha yaygın uygulama alanı bulan gabion tipi dayanma yapılarının birçok durumda daha ekonomik olmalarına karşılık, ülkemizde çok yaygın kullanılmadıkları görülmektedir. Bu makalede; gabion tipi yapılar ve başlıca uygulama alanlarının tanıtılması, avantaj ve dezavantajlarının belirlenmesi, tasarım ve uygulamalarda dikkat edilmesi gerekli hususlar üzerinde durulmuştur.

Makale 2015 Türkiye Mühendislik Haberleri 7 Görüntülenme

Folic-Acid-Modified Conducting Polymer: Electrochemical Detection of the Cell Attachment.

AZAK, Hacer | BARLAS, Fırat Barış | YILDIZ, Hüseyin Bekir | GÜLEÇ, Kadri | DEMİR, Bilal | ODACI DEMİRKOL, Dilek | TİMUR, Suna

Here, postfunctionalization and bioapplication of a π-conjugated polymer named 4-[4H-dithieno(3,2-b:2',3'-d)pyrrol-4-yl]aniline (DTP-aryl-NH2 ) are reported, which is successfully synthesized via electropolymerization onto the glassy carbon electrode. Folic acid (FA) is used to modify the amino functional polymer via N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride/N-hydroxysuccinimide chemistry for the further steps. The selective adhesion of folate receptor positive cells on the surface is followed by the electrochemical methods. Cyclic voltammetry and electrochemical impedance s ...Daha fazlası

Makale 2016 7 Görüntülenme

Nonexistence results for parabolic equations involving the p-Laplacian and Hardy–Leray-type inequalities on Riemannian manifolds

GOLDSTEIN, Gisèle Ruiz | GOLDSTEIN, Jerome Arthur | KÖMBE, İsmail | BAKIM, Sümeyye

The main goal of this paper is twofold. The first one is to investigate the nonexistence of positive solutions for the following nonlinear parabolic partial differential equation on a noncompact Riemannian manifold M, ⎧ ⎪⎨ ⎪⎩ ∂u ∂t = Δp,gu + V(x)u p−1 + λuq in Ω × (0, T ), u(x, 0) = u0(x) ≥ 0 in Ω, u(x, t) = 0 on ∂Ω × (0, T ), where 1 < p < 2, V ∈ L1 loc(Ω), q > 0, λ ∈ R, Ω is bounded and has a smooth boundary in M and Δp,g is the p-Laplacian on M. The second one is to obtain Hardy- and Leray-type inequalities with remainder terms on a Riemannian manifold M that provide us concrete potentials ...Daha fazlası

Makale 2021 8 Görüntülenme

Λ+c production in Pb-Pb collisions at √sNN=5.02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

A measurement of the production of prompt Λ+c baryons in Pb-Pb collisions at sNN−−−√=5.02 TeV with the ALICE detector at the LHC is reported. The Λ+c and Λ¯¯¯¯−c were reconstructed at midrapidity (|y|< 0.5) via the hadronic decay channel Λ+c→pK0S (and charge conjugate) in the transverse momentum and centrality intervals 6< pT< 12 GeV/c and 0-80%. The Λ+c/D0 ratio, which is sensitive to the charm quark hadronisation mechanisms in the medium, is measured and found to be larger than the ratio measured in minimum-bias pp collisions at s√=7 TeV and in p-Pb collisions at sNN−−−√=5.02 TeV. In particu ...Daha fazlası

Makale 2019 9 Görüntülenme

Charged-particle pseudorapidity density at mid-rapidity in p-Pb collisions at √sNN = 8.16 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

The pseudorapidity density of charged particles, dNch/dη , in p–Pb collisions has been measured at a centre-of-mass energy per nucleon–nucleon pair of sNN−−−√ = 8.16 TeV at mid-pseudorapidity for non-single-diffractive events. The results cover 3.6 units of pseudorapidity, |η|

Makale 2019 23 Görüntülenme

Forward-central two-particle correlations in p–Pb collisions at √sNN = 5.02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5 < |η| < 4.0) and associated particles in the central range (|η| < 1.0) are measured with the ALICE detector in p–Pb collisions at a nucleon–nucleon centre-of-mass energy of 5.02 TeV. The trigger particles are reconstructed using the muon spectrometer, and the associated particles by the central barrel tracking detectors. In high-multiplicity events, the double-ridge structure, previously discovered in two-particle angular correlations at midrapidity, is found to persist to the pseudorapidity ra ...Daha fazlası

Makale 2016 3 Görüntülenme

Multiplicity dependence of light (anti-)nuclei production in p–Pb collisions at √sNN = 5.02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

The measurement of the deuteron and anti-deuteron production in the rapidity range −1 < y < 0 as a function of transverse momentum and event multiplicity in p–Pb collisions at √sNN = 5.02 TeV is presented. (Anti-)deuterons are identified via their specific energy loss dE/dx and via their time-of- flight. Their production in p–Pb collisions is compared to pp and Pb–Pb collisions and is discussed within the context of thermal and coalescence models. The ratio of integrated yields of deuterons to protons (d/p) shows a significant increase as a function of the charged-particle multiplicity of the ...Daha fazlası

Makale 2019 2 Görüntülenme

Suppression of ψ(2S) production in p-Pb collisions at √sNN = 5.02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

The ALICE Collaboration has studied the inclusive production of the char- monium state ψ(2S) in proton-lead (p-Pb) collisions at the nucleon-nucleon centre of mass energy √sNN = 5.02 TeV at the CERN LHC. The measurement was performed at forward (2.03 < ycms < 3.53) and backward (−4.46 < ycms < −2.96) centre of mass rapidities, studying the decays into muon pairs. In this paper, we present the inclusive production cross sections σψ(2S), both integrated and as a function of the transverse momentum pT, for the two ycms domains. The results are compared to those obtained for the 1S vector state (J ...Daha fazlası

Makale 2014 3 Görüntülenme

Exclusive J/ψ photoproduction off protons in ultra-peripheral p-Pb collisions at sNN−−−√=5.02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

We present the first measurement at the LHC of exclusive J=ψ photoproduction off protons, in pffiffiffiffiffiffiffi ultraperipheral proton-lead collisions at sNN 1⁄4 5.02 TeV. Events are selected with a dimuon pair produced either in the rapidity interval, in the laboratory frame, 2.5 < y < 4 (p-Pb) or −3.6 < y < −2.6 (Pb-p), and no other particles observed in the ALICE acceptance. The measured cross sections σðγ þ p → J=ψ þ pÞ are 33.2 2.2ðstatÞ 3.2ðsystÞ 0.7ðtheorÞ nb in p-Pb and 284 36ðstatÞþ27ðsystÞ −32 26ðtheorÞ nb in Pb-p collisions. We measure this process up to about 700 GeV in the γp ...Daha fazlası

Makale 2014 5 Görüntülenme

Detaylı Arama

Filtreler

Koleksiyon [9]

İlgili Araştırmacılar [20]

Ambargo Durumu [1]

Tam Metin [2]

Yayın Türü [5]

Yazar/lar [20]

Atıf Dizini [6]

Konu Başlıkları [20]

Yayıncı [20]

Tez Danışmanı [6]

Yayın Tarihi [10]

Tez Türü [1]

Yayın Dili [3]

dc.description.provenance [5]

Hierarchical representation of video sequences for annotation

MENDİ, Engin

Synthesis of Various Calix [4] arene Derivatives with Mercaptoalkyl Chains and Their Application in Removing Cr (VI) from Aqueous Solution

SAYIN, Serkan | YILDIZ, Hüseyin Bekir | EYMÜR, Serkan

Tagging accuracy analysis on part-of-speech taggers

YUMUŞAK, Semih | DOĞDU, Erdoğan | KODAZ, Halife

Gabion Tipi Dayanma Yapıları

URAY, Esra | TAN, Özcan

Folic-Acid-Modified Conducting Polymer: Electrochemical Detection of the Cell Attachment.

AZAK, Hacer | BARLAS, Fırat Barış | YILDIZ, Hüseyin Bekir | GÜLEÇ, Kadri | DEMİR, Bilal | ODACI DEMİRKOL, Dilek | TİMUR, Suna

Nonexistence results for parabolic equations involving the p-Laplacian and Hardy–Leray-type inequalities on Riemannian manifolds

GOLDSTEIN, Gisèle Ruiz | GOLDSTEIN, Jerome Arthur | KÖMBE, İsmail | BAKIM, Sümeyye

Λ+c production in Pb-Pb collisions at √sNN=5.02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

Charged-particle pseudorapidity density at mid-rapidity in p-Pb collisions at √sNN = 8.16 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

Forward-central two-particle correlations in p–Pb collisions at √sNN = 5.02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

Multiplicity dependence of light (anti-)nuclei production in p–Pb collisions at √sNN = 5.02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

Suppression of ψ(2S) production in p-Pb collisions at √sNN = 5.02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

Exclusive J/ψ photoproduction off protons in ultra-peripheral p-Pb collisions at sNN−−−√=5.02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration