Relevant bibliographies by topics / Parameter K(t)

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Parameter K(t)'

Author: Grafiati
Published: 28 June 2021
Last updated: 29 July 2025

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Journal articles on the topic "Parameter K(t)"

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Venttsel’, V. A., A. E. Petrova, and A. V. Rudnev. "Magnetic susceptibility of high-T c superconducting ceramic Tl3Ca7Ba3Cu8O7." Soviet Journal of Low Temperature Physics 16, no. 1 (1990): 60–62. https://doi.org/10.1063/10.0032329.

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The ac magnetic susceptibility of HTS ceramic Tl3Ca7Ba3Cu8O7 is measured by using the bridge method. The critical parameters Tc = 100 K and Hc1 ≈ 15 Oe are estimated at T→0; below 50 K, Hc2 linearly decreases with temperature [Hc2 = 440-8.4T (kOe)], while above 50 K it decreases according to a power law [Hc2 = 275(1 – T/Tc)3.5 (kOe)]. The Ginzburg-Landau parameter is estimated as x(0) ≃ 300, x(Tc) ≈ 8, and x(T) ∝ x0(1 – T/Tc)1.6.
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Shankar, Sujay, Michael A. Gully-Santiago, and Caroline V. Morley. "A New Hybrid Machine Learning Method for Stellar Parameter Inference." Astrophysical Journal 985, no. 1 (2025): 68. https://doi.org/10.3847/1538-4357/adcb47.

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Abstract The advent of machine learning (ML) is revolutionary to numerous scientific disciplines, with a growing number of examples in astronomical spectroscopic inference, as ML is more powerful than traditional techniques. Here we introduce a hybrid ML (HML) method combining automatic differentiation, interpolation, and Bayesian optimization to infer stellar parameters of stellar spectra. We study T eff, log ( g ) , and [Fe/H], but this method could be extended to other parameters such as [α/Fe] (alpha element abundance), C/O (carbon–oxygen ratio), and f sed (sedimentation efficiency). We fi
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Petzschner, Frederike H., Irene P. Ponce, Martin Blaimer, Peter M. Jakob, and Felix A. Breuer. "Fast MR parameter mapping using k-t principal component analysis." Magnetic Resonance in Medicine 66, no. 3 (2011): 706–16. http://dx.doi.org/10.1002/mrm.22826.

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Falcon, Sergio. "On the Extended (k, t) - Fibonacci Numbers." Journal of Advances in Mathematics and Computer Science 39, no. 7 (2024): 81–89. http://dx.doi.org/10.9734/jamcs/2024/v39i71914.

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This article studies an extension of the concept of k-Fibonacci numbers by introducing a new non-zero positive integer parameter t. In case t = 1, the numbers found are the Leonardo numbers. A homogeneous recurrence relationship is found between these new numbers, and various formulas are studied such as the Binet Identity or the generating function.
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Sebko, V. V., Ye V. Pyrozhenko, N. M. Zashchepkina, V. G. Zdorenko, and O. M. Markina. "Four-parameter electromagnetic method for determining the parameters of brewery effluents." Journal of Achievements in Materials and Manufacturing Engineering 113, no. 2 (2022): 49–64. http://dx.doi.org/10.5604/01.3001.0016.1405.

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of the article is to study a four-parameter electromagnetic method for joint measurements of electrical resistivity k, relative permittivity εr, temperature t and density ρ of samples of acidic, alkaline and average effluents from a microbrewery based on a magnetic flux probe (MFP), which considers the influence of informative parameters of beer effluents on the components of the amplitude and phase signals of a multiparameter device. The implementation of the four-parameter method is carried out on the basis of the dependences G1 = f (A1) and G2 = f (A2) at two frequencies of the electromagne
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Deshmukh, Mangesh R., Ganesh M. Bansode, and Pallavi Mahajan. "EVALUATION OF POTATO CULTIVAR FOR GROWTH AND YIELD PARAMETER." World Journal of Biology and Biotechnology 3, no. 1 (2018): 203. http://dx.doi.org/10.33865/wjb.003.01.0138.

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The present investigation on evaluation of varietal performance of various potato varieties under Pune Conditions was initiated in Oct 2012. Potato tubers of Kufri Lauvkar, Kufri Badshah, Kufri Pushkar, Kufri Surya, Kufri Khyati, Kufri Ashoka, Kufri Jyoti, Kufri Pukharaj were planted on ridges and furrows. The results revealed that Kufri Surya recorded significantly higher total tuber yield (20.67 t/ha) followed by Kufri Pukharaj (18.45 t/ha). However percent plant emergence and foliage senescence were found non-significant. Whereas results in respect of yield depicted that the variety Kufri L
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Chuan-Hui, N., and S. Xiao-Bao. "Grüneisen parameter of lithium, sodium and potassium at T=298 K." Journal of Physics and Chemistry of Solids 62, no. 7 (2001): 1359–61. http://dx.doi.org/10.1016/s0022-3697(01)00007-5.

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RUSLAN, AHMAD BASRI. "Prediction Modelling Through Chaotic Approach on Ozone (O3) Pollutant Time Series in Shah Alam City." ASM Science Journal 17 (July 27, 2022): 1–9. http://dx.doi.org/10.32802/asmscj.2022.1159.

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Studies on Ozone (O3) particles and their effect have become a significant concern. Exposure to high concentrations of O3 can cause an adverse reaction in the human respiratory system. Therefore, this study aims to predict the monthly O3 time series in the highly populated area of Shah Alam through a chaotic approach. The phase space plot and Cao methods successfully detected the chaotic behaviour O3 time series data. The three parameters are determined before the prediction process: time delay t, embedded dimension m, and nearest neighbour k. This study used t=1 and the value of m is calculat
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Mukherjee, Somnath. "Some Studies on K-essence Lagrangian." International Journal of Innovative Research in Physics 2, no. 2 (2021): 9–14. http://dx.doi.org/10.15864/ijiip.2202.

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K-essence Lagrangian is studied in the context of an early universe epoch when t → 0. Equation of state parameter ω < −1 as well as deceleration parameter q0 < −1, indicates an accelerated expansion of the universe at an early epoch of time driven by negative pressure generated by dark energy.
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Li, Guo, Li Li, and Peng Zhu. "Galloping Control for Iced Conductors Using Tuned Mass Dampers with Fixed Time-Delayed Feedback." Shock and Vibration 2019 (February 27, 2019): 1–9. http://dx.doi.org/10.1155/2019/4823457.

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A tuned mass damper with fixed time-delay feedbacks (TTMD) is first applied to suppress galloping of iced conductors. It is different from general time-delay feedback control, which also connects an added mass to a galloping body and can absorb vibrational energy. The two-degrees-of-freedom model captures the essential mechanical behaviors of iced conductors with TTMD undergoing galloping. The harmonic balance method is then employed to obtain the approximate analytical solutions of the system. Particularly, the expressions of galloping amplitude and angle frequency were obtained. Then the inf
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Dissertations / Theses on the topic "Parameter K(t)"

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Kokeš, Miroslav. "Porovnání metod pro identifikaci poruch valivých ložisek." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442447.

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The aim of this master thesis is the comparison of selected methods and parameters for roller bearings diagnostics. Selected statistical parameters are kurtosis, crest factor, and parameter K(t). The other selected methods are envelope analysis, cepstral analysis, and ACEP method. These methods are implemented in LabVIEW software and compared based on noise resistance, computation speed, and overall capability of identifying roller bearing faults.
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Schmidt, Sarah J., Erika L. Wagoner, Jennifer A. Johnson, et al. "Examining the relationships between colour, T eff , and [M/H] for APOGEE K and M dwarfs." OXFORD UNIV PRESS, 2016. http://hdl.handle.net/10150/621724.

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We present the effective temperatures (T-eff), metallicities, and colours in Sloan Digital Sky Survey (SDSS), Two Micron All Sky Survey, and Wide-field Infrared Survey Explorer filters, of a sample of 3834 late-K and early-M dwarfs selected from the SDSS Apache Point Observatory Galactic Evolution Experiment (APOGEE) spectroscopic survey ASPCAP (APOGEE Stellar Parameters and Chemical Abundances Pipeline) catalogue. We confirm that ASPCAP T-eff values between 3550 < T-eff < 4200 K are accurate to similar to 100 K compared to interferometric T-eff values. In that same T-eff range, ASPCAP metalli
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Alt, Hans-Marian Rücker Thomas Wabbel Thomas. "Ableitung von Regeln zur Optimierung der PAC-Parameter z, k und t in mehrstufigen PAC-gesteuerten Produktionssystemen mit einem und mehreren Endprodukten /." 2005. http://www.gbv.de/dms/ilmenau/abs/509129633alt.txt.

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KUMAR, RAJESH. "DETERMINATION OF K-T PARAMETERS USING BUTTERWORTH FILTER." Thesis, 2013. http://dspace.dtu.ac.in:8080/jspui/handle/repository/14200.

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The spectral content and duration of some major Indian earthquake time-histories or strong-motion accelerogramshave been studied with an aim of quantifying the uncertainty of ground motion. Ground motions are characterized by Kanai-Tajimiparameters based on spectral density function which has been computed using Butterworth filter. Parameters are estimated for each record based on the method of spectral moments. The statistics and dependencies of the parameters are evaluated, and in particular, correlations between the Kanai-Tajimi parameters, maximum ground acceleration, epicentral distance,
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Books on the topic "Parameter K(t)"

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Kachelriess, Michael. Cosmological models for an homogeneous, isotropic universe. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198802877.003.0020.

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The universe is homogeneous and isotropic on sufficiently large scales. The metric which describes such a space-time is derived and it is shown that it is determined by the scale factor a(t) and the parameter k distinguishing between hyperbolic, flat, or spherical 3-spaces. The Friedmann equations, which describe the time evolution of these models, are derived and specific models are discussed.
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Ryazantsev, Sergey, Tamara Rostovskaya, Olga Vorobyeva, Alexander Zubko, Mehdi Afzali та Timur Miryazov. Аtlas of socio-demographic development of Russia and Iran / S. V. Ryazantsev, T. K. Rostovskaya, O. D. Vorobyeva [et al.]; FCTAS RAS. – M.: Perspectiva Publishing, 2020. – 136 p. Perspectiva Publishing, 2020. http://dx.doi.org/10.38085/978-5-905-790-46-1-2020-1-136.

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The Atlas of the Socio-Demographic Development of Russia and Iran is a comprehensive scientific and practical publication that presents a cartographic model of cross-country comparisons of the socio-demographic development of the states. The model helps to obtain information about the main parameters of the socio-demographic situation in comparison with similar indicators, as well as to analyze the main trends of the socio-demographic development of the state and society. The Atlas is addressed to scientists, civil servants, social workers, teachers, graduate students, students (demographers,
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Skupio, Rafał. Zastosowanie nieinwazyjnych pomiarów rdzeni wiertniczych do zwiększenia informacji na temat parametrów skał zbiornikowych. Instytut Nafty i Gazu - Państwowy Instytut Badawczy, 2022. http://dx.doi.org/10.18668/pn2022.237.

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The research carried out in the monograph aimed to create a measurement and interpretation system which is to obtain reliable results of well logging with the accuracy of laboratory measurements. Continuous core measurements allow for the generation of logging results without the impact of the borehole and facilitate the depth matching of the core to well log data. Four main chapters can be distinguished in this work: research methodology with a description of the devices used; partial results of core measurements made on various types of rocks; a proposal for a research system, and comprehens
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Book chapters on the topic "Parameter K(t)"

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Donkers, Huib, Bart M. P. Jansen, and Jari J. H. de Kroon. "Finding k-Secluded Trees Faster." In Graph-Theoretic Concepts in Computer Science. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-15914-5_13.

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AbstractWe revisit the k-Secluded Tree problem. Given a vertex-weighted undirected graph G, its objective is to find a maximum-weight induced subtree T whose open neighborhood has size at most k. We present a fixed-parameter tractable algorithm that solves the problem in time $$2^{\mathcal {O} (k \log k)}\cdot n^{\mathcal {O} (1)}$$, improving on a double-exponential running time from earlier work by Golovach, Heggernes, Lima, and Montealegre. Starting from a single vertex, our algorithm grows a k-secluded tree by branching on vertices in the open neighborhood of the current tree T. To bound t
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Zhen, Yicun, Bertrand Chapron, and Etienne Mémin. "Bridging Koopman Operator and Time-Series Auto-Correlation Based Hilbert–Schmidt Operator." In Mathematics of Planet Earth. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-18988-3_19.

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AbstractGiven a stationary continuous-time process f(t), the Hilbert–Schmidt operator Aτ can be defined for every finite τ. Let λτ,i be the eigenvalues of Aτ with descending order. In this article, a Hilbert space $$\mathcal {H}_f$$ ℋ f and the (time-shift) continuous one-parameter semigroup of isometries $$\mathcal {K}^s$$ K s are defined. Let $$\{v_i, i\in \mathbb {N}\}$$ { v i , i ∈ ℕ } be the eigenvectors of $$\mathcal {K}^s$$ K s for all s ≥ 0. Let $$f = \displaystyle \sum _{i=1}^{\infty }a_iv_i + f^{\perp }$$ f = ∑ i = 1 ∞ a i v i + f ⊥ be the orthogonal decomposition with descending |ai
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Ashraf, Nabil Shovon. "Incomplete Ionization Related Parameter Calculations and Device Physical Effects Without Considering Band Non Parabolicity Effect at T = 300 K." In Synthesis Lectures on Emerging Engineering Technologies. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-84286-3_1.

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Alslaihat, Motasem J., Hatem S. Widyan, Mashhoor A. Al-Wardat, Awni M. Kasawneh, Diala M. Taneenah, and Abdullah M. Hussein. "A Comprehensive Study of the Physical and Geometrical Characteristics of the Close Visual Binary System HIP 45571." In Springer Proceedings in Physics. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-3276-3_6.

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Abstract In this paper, we estimated the physical and geometrical characteristics of the visually close binary stellar system Hip 45571, using “Al-Wardat’s method for analyzing binary and multiple stellar systems”. We estimated the physical properties of the components of the system for the four measured parallax given by Gaia and Hipparcos, which gives a dynamical mass sum ranges between 2.43 and 2.52 solar mass using the new orbital parameters following Tokovinin’s dynamical method. The method used is a spectrophotometrical computational technique that employs Kurucz plane-parallel line-blan
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Wang, Sujing, Na Zhang, Mingfang Sun, and Chunguang Zhou. "The Analysis of Parameters t and k of LPP on Several Famous Face Databases." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21524-7_40.

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Ashraf, Nabil Shovon. "Band Non Parabolicity Introduced T = 300 K Other Critical Parameters Derivations that Impact FET Performance." In Synthesis Lectures on Emerging Engineering Technologies. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-84286-3_4.

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Ashraf, Nabil Shovon. "Band Non Parabolicity Introduced T = 300 K Key Doping Ionization Related and Carrier Transport Related Parameters Derivation." In Synthesis Lectures on Emerging Engineering Technologies. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-84286-3_3.

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Ashraf, Nabil Shovon. "Band Non Parabolicity Introduced DOS Effective Electron Mass and Hole Effective Mass in Silicon at T = 300 K Impact on Related Parameters in Chapter 1." In Synthesis Lectures on Emerging Engineering Technologies. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-84286-3_2.

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Gräfe, Wolfgang. "The Separation of the Semi-infinite Model and the Calculation of the Surface Parameters for the Three-Dimensional body at T = 0 K (Regula Falsi of Surface Theory)." In Quantum Mechanical Models of Metal Surfaces and Nanoparticles. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19764-7_5.

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Pic, Miguel, Vicente Navarro-Adelantado, and Gudberg K. Jonsson. "Researching Through T-Pattern Analysis to Reduce the Triad Motor Game Complexity." In Advances in Early Childhood and K-12 Education. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-7998-9621-0.ch003.

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Researching the motor triad game and its strategy is to assume the huge complexity derived from ambivalence. For this reason, time was taken as a criterion through the roles and subroles transition through t-patterns analysis (TPA) for the ‘Maze' game. In parallel to the triadic specificity, there are advantages to using a methodology in accordance with the ambivalent nature through the temporal distances of the playful events. The game rules stability and the triadic complexity offer a favorable game model to use TPA because it includes the temporal parameter, allowing observation criteria to
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Conference papers on the topic "Parameter K(t)"

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McCabe, Kevin M., Samuel W. Smith, and David W. Black. "Effects of Flow Parameters on the Cathodic Protection of a Steel Plate in Natural Seawater." In CORROSION 1985. NACE International, 1985. https://doi.org/10.5006/c1985-85209.

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Abstract A formula is developed which describes the transport of oxygen to the surface of a metal under cathodic polarization in seawater. The relation assumes turbulent flow conditions and a flat plate geometry. As derived in the text the limiting current density (il) for oxygen reduction is given by: il=DnFCb78.30Sc−1/3Re−9/10x+t/kwhere D is the diffusion constant of oxygen in water, n is its valence (2), F is Faraday's constant, Cb is the oxygen concentration in the bulk, Sc is the Schmidt number, Re is the Reynold's number, x is the distance from the leading edge, t is the thickness of the
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Oh, Chang-Young, Tae-Kwang Song, and Yun-Jae Kim. "An Estimation of C(t) of Transient Creep Under Combined Mechanical and Thermal Stresses." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25372.

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In this paper, a prediction of C(t), a crack tip parameter for the transient creep condition, for the circumferential cracked pipe under combined mechanical and thermal stresses are presented. The estimation formulae for C(t)-integral of the cracked component operating under mechanical load alone have been provided for decades [1–6]. However, high temperature structures usually work under combined mechanical and thermal load. And the interactions between mechanical and thermal loads make the relaxation rate different from those produced under mechanical load alone. In this study, 3-dimensional
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Matiyev, A. Ch, and R. T. Uspazhiev. "INFLUENCE OF POLYTYPY ON PHASE TRANSITIONS IN TlGaSe2 CRYSTALS." In «АКТУАЛЬНЫЕ ВОПРОСЫ СОВРЕМЕННОЙ НАУКИ: ТЕОРИЯ, ТЕХНОЛОГИЯ, МЕТОДОЛОГИЯ И ПРАКТИКА». Международная научно-практическая онлайн-конференция, приуроченная к 60-ти летию член-корреспондента Академии наук ЧР, доктора технических наук, профессора Сайд-Альви Юсуповича Муртазаева. Crossref, 2021. http://dx.doi.org/10.34708/gstou.conf..2021.76.13.002.

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It is shown that, in the C-polytype of TlGaSe2 crystals, the structural PT, which occurs at a temperature of T ~ 108 K, is accompanied by an abrupt change in the value of the parameter c (∆c ~ 0.004 Å). For the 2C-TlGaSe2 polytype, the c (T) dependence shows only one clearly pronounced maximum at the temperature Tc2. Moreover, at temperatures that are T1 ~ 30 K higher and T2~ 5 K below Tc2, the Curie-Weiss law is fulfilled. The absence of a fourfold increase in the parameter from the unit cell for 2C-TlGaSe2 samples in the temperature range T = 100-300 K indicates that spontaneous polarization
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Yazdani Nezhad, Hamed, and Noel P. O’Dowd. "Prediction of Transient Creep Response Under Combined Primary and Secondary Loading." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25272.

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Residual stress effects on creep deformation and fracture play a significant role in structural integrity assessments of engineering components. The focus of the current work is to investigate creep behaviour of mechanically loaded cracked structures in the presence of residual stress fields. Finite-element analyses have been carried out on single edge notch bend, SEN(B), and tension, SEN(T), specimens at different residual stress and mechanical stress levels. The redistribution time and associated stress relaxation for combined primary and secondary (residual) stresses have been determined (f
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Yin, Shengjun, Paul T. Williams, Terry L. Dickson, and B. Richard Bass. "Applicability of (K, T-Stress) Methodology to Analyze RPV Under Thermal-Hydraulic Transients." In ASME 2007 Pressure Vessels and Piping Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/pvp2007-26845.

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The (K, T-stress) methodology developed by Gao and Dodds [1] is being utilized to introduce crack front plasticity with constraint effects when plastic deformation occurs in structures, for example, when the Reactor Pressure Vessels (RPVs) are subjected to thermal-hydraulic loadings. One crucial step in this procedure is to quantify combinations of flaw geometries and loading conditions (transient sequences) that illustrate the limits of applicability of the two-parameter (K, T-stress) advanced fracture methodology relevant to integrity analyses of RPVs subjected to normal and emergency operat
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Mehmanparast, A. N., C. M. Davies, and K. M. Nikbin. "Validation of the K and J Parameters in a Compact Tension Specimen Containing Intergranular and Straight Crack Paths." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25281.

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Methods have been examined to evaluate the fracture mechanics parameters J and K in finite element (FE) analyses on a compact tension, C(T), geometry using a mesh appropriate for the evaluation of both intergranular and transgranular microstructural damage processes. Realistic grain and grain boundary microstructures were modelled using ABAQUS. Both straight and deviating crack profiles were considered, representing transgranular and intergranular crack growth processes, respectively. Elastic and elastic-plastic finite element analyses were performed on a C(T) specimen model with a standard st
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Bray, D. P., R. J. Dennis, and M. C. Smith. "Prediction of Welding Residual Stresses, Crack Initiation and Creep Crack Driving Forces C(t) Within a Continuous Finite Element Solution." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25699.

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The work reported in this paper investigates the manufacture, through-life operation and cracked behaviour of an attachment weld in a UK AGR boiler. A structural assessment of the attachment weld was performed to demonstrate its integrity. This assessment made use of complex finite element analysis of both the welding process and postulated defects. A simulation of the welding process was performed in order to predict the residual stresses and hardened material state throughout the attachment weld. The welding simulation was performed in two stages since a butter weld was deposited prior to th
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Gentry, R., and Y. Nemerson. "THE ACTIVATION OF PROTHROMBIN: A LINKED REACTIVE KINETIC MODEL." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643932.

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Prothrombin activation by factors Xa and Va is complex, involving five linked reactions occurring either in a bulk fluid phase or in a local phospholipid (PL) surface phase, each controlled by both the fundamental energetics of the species interactions and the relevant reactant concentrations. The significance of each reaction and in particular the kinetic efficiency of the PL surface reactions is yet to be resolved. Previous essentially Michaelis-Menten kinetic treatments of prothrombin activation have been derived without concern for the kinetic influence of the order of reactant assembly or
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Friswell, Michael I., Seamus D. Garvey, and Uwe Prells. "Structure Preserving Transformations and Isospectral Flows for Second Order Systems." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/vib-48453.

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When the dynamics of any general second order system are cast in a state-space format, the initial choice of the state-vector usually comprises one partition representing system displacements and another representing system velocities. Coordinate transformations can be defined which result in more general definitions of the state-vector. This paper discusses the general case of coordinate transformations of state-space representations for second order systems. It identifies one extremely important subset of such coordinate transformations — namely the set of structure-preserving transformation
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Aziz, Haris, Serge Gaspers, and Kamran Najeebullah. "Weakening Covert Networks by Minimizing Inverse Geodesic Length." In Twenty-Sixth International Joint Conference on Artificial Intelligence. International Joint Conferences on Artificial Intelligence Organization, 2017. http://dx.doi.org/10.24963/ijcai.2017/108.

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We consider the problem of deleting nodes in a covert network to minimize its performance. The inverse geodesic length (IGL) is a well-known and widely used measure of network performance. It equals the sum of the inverse distances of all pairs of vertices. In the MinIGL problem the input is a graph $G$, a budget $k$, and a target IGL $T$, and the question is whether there exists a subset of vertices $X$ with $|X|=k$, such that the IGL of $G-X$ is at most $T$. In network analysis, the IGL is often used to evaluate how well heuristics perform in strengthening or weakening a network. In this pap
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