Browsing by Study direction "A03 - Statistika / Statistics"

Now showing items 21-31 of 31

    • Mašininio mokymosi metodų taikymas finansų rinkoms modeliuoti 

      Repečkaitė, Rimantė (2022)
      Šiame darbe yra nagrinėjami atraminių vektorių ir atsitiktinio miško metodai. Pirmiausia yra apžvelgiama mokslinė literatūra, išanalizuojami metodai. Tyrimo metu yra sudaromi modeliai OMX „Baltic“, DAX akcijų indeksų bei ...

    • Mathematical modelling and hybrid strategies for risk and uncertainty management 

      Bekešienė, Svajonė; Meidutė-Kavaliauskienė, Ieva (2022)
      Risk management is a decision-making process that takes into consideration political, social, economic and engineering factors, with relevant risk assessments relating to a potential hazard. Mathematics uses reasoned ...

    • Mixed-stable models: an application to high-frequency financial data 

      Belovas, Igoris; Sakalauskas, Leonidas; Starikovičius, Vadimas; Sun, Edward W. (Entropy, 2021)
      The paper extends the study of applying the mixed-stable models to the analysis of large sets of high-frequency financial data. The empirical data under review are the German DAX stock index yearly log-returns series. ...

    • Nehomogeniniai rizikos modeliai, kai žalos pasiskirsčiusios pagal Veibulo dėsnį 

      Motiejauskytė, Izolda
      Magistro baigiamojo darbo tikslas – įvertinti draudiko bankroto tikimybę, kai draudiko kapitalas kinta pagal diskretaus laiko rizikos modelį, o žalos yra pasiskirsčiusios pagal Veibulo dėsnį. Pirmoje darbo dalyje pateikiamas ...

    • One-year treatment non-persistence rates in hypertensive patients in Lithuania 

      Trečiokienė, Indrė; Bratčikovienė, Nomeda; Gulbinovič, Jolanta; Wettermark, Bjorn Gunnar Erik Evert; Taxis, Katja (Research in social and administrative pharmacy: Conference Abstracts: Next Chapter in Patient Care 2021: patient-centered approach and digital innovation inhealthcare (NCPC 2021) 7-9 April 2022, Parnu, Estonia, 2022)

    • Protection of creditors’ interests in an extrajudicial dissolution 

      Trinkūnienė, Eva; Viškelienė, Tatjana (13th International Scientific Conference “Business and Management 2023”, 2023)
      Modern society increasingly adopts the products of companies, institutions, and organizations that provide credit services in order to meet its needs and improve general quality of life, as a result of which, when terminating ...

    • Selective editing using contamination model 

      Burakauskaitė, Ieva; Nekrašaitė-Liegė, Vilma (Romanian statistical review, 2022)
      Results of an outlier detection study with a focus on selective editing are presented in the paper. The aim of selective editing is to identify observations affected by errors that have a major impact on the quality of ...

    • Statistical Analysis of Scientometric Data 

      Vykertaitė, Augustė
      In this master’s thesis scientific articles of Web of Science category “Statistics & Probability”, published in 1990-2019, are collected and observed. Applying latent Dirichlet allocation model latent (hidden) topics of ...

    • StatVillage homework 

      Šlevinskas, Donatas (Baltic-Nordic-Ukrainian workshop on survey statistics 2022, August 23-26, 2022, Tartu, Estonia, 2022)
      During the course of sampling methods I was given a homework about hypothetical village in Canada called StatVillage. Here we try to estimate various parameters of the population variable using different sampling and ...

    • Three-Faceted Approach to Perceived Stress: A Longitudinal Study of Stress Hormones, Personality, and Group Cohesion in the Real-Life Setting of Compulsory Basic Military Training 

      Bekešienė, Svajonė; Smaliukienė, Rasa; Vaičaitienė, Ramutė; Mažeikienė, Asta; Larsson, Ulf Gerry; Karčiauskaitė, Dovilė; Mazgelytė, Eglė (Sustainability: Security Challenges in the Context of Sustainability, 2022)
      Compulsory basic military training is characterized not only by being challenging but also by being stressful. Assuming a high frequency of perceived stress events as a negative outcome of training, this article provides ...

    • Usage of non-probability sample and scraped data to estimate proportions 

      Nekrašaitė-Liegė, Vilma; Čiginas, Andrius; Krapavickaitė, Danutė (Baltic-Nordic-Ukrainian workshop on survey statistics 2022, August 23-26, 2022, Tartu, Estonia, 2022)
      An increasing amount of data sources suggests a task to integrate them with the ordinary data sources used in official statistics. One of the problems under the study at Statistics Lithuania is to revise some indicators ...