Essays about: "N3"

Showing result 1 - 5 of 15 essays containing the word N3.

  1. 1. Testing aerosol vertical profiling methods with portable instruments on unmanned and manned aircraft

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Ellen Grace Soroka; [2023]
    Keywords : Physical Geography; Ecosystem Analysis; Aerosols; Vertical Profile; Black Carbon; PM2.5; Nanoparticles; UAV; Drone; Master degree thesis; 30 credits in Atmospheric Science Biogeochemical Cycles; Earth and Environmental Sciences;

    Abstract : This thesis employed several portable sensors on board an unmanned aerial vehicle (UAV) and manned aircraft in order to test new methods of measuring vertical profiles of aerosol particles and contribute to knowledge of aerosol distributions in the atmosphere. More data in this area is required to improve atmospheric modelling and future climate scenarios. READ MORE

  3. 2. Data Complexity and its effect on Classification Accuracy in Multi Class Classification Problems : A study using synthetic datasets

    University essay from KTH/Datavetenskap

    Author : Fredrik Östlund; Erik Fahlman; [2022]
    Keywords : ;

    Abstract : This study investigates how the performance of a selection of machine learning classifiers is affected by the data complexity, measured by F1, N1, N2, and N3 in a multi class classification setting. This study uses synthetic datasets that span across the range of possible complexity levels for each complexity measure, allowing us to target the desired level of complexity for each dataset. READ MORE

  4. 3. Barriers of Traveling with Sustainable Transportation Vehicles : A comparative empirical analysis of leisure travelers’ behavior in Sweden, Germany, and Iran

    University essay from Umeå universitet/Företagsekonomi

    Author : Robin Julian Herbert; Fateme Sohrabi; [2020]
    Keywords : consumer behavior; intention-behavior gap; theory of planned behavior; leisure travel; sustainable transportation; international comparison; climate change; aviation industry; perceived effectiveness; social norms; perceived value; sustainable lifestyle; environmental knowledge; environmental concern; perceived price; travel distance;

    Abstract : This master thesis analyzes the influence of psychological barriers of consumers from Germany, Sweden, and Iran for using sustainable transportation modes. Climate change has started to change the way people travel. READ MORE

  5. 4. Indoor and Outdoor Measurements of Particulate Matter with the Low-Cost Optical Sensor OPC-N3

    University essay from Lunds universitet/Kärnfysik; Lunds universitet/Fysiska institutionen

    Author : Ellen Grace Soroka; [2020]
    Keywords : Physics and Astronomy;

    Abstract : This paper evaluates the low-cost optical sensor OPC-N3 from Alphasense as a suitable scientific instrument for measuring particulate matter levels in air, both outdoors and in- doors. The time-keeping and data-retrieval was additionally improved by connecting the OPC-N3 to an Arduino microcontroller equipped with a real-time clock (RTC) module and an external SD card. READ MORE

  6. 5. Dynamic Programming Algorithms for Semantic Dependency Parsing

    University essay from Linköpings universitet/Interaktiva och kognitiva system

    Author : Nils Axelsson; [2017]
    Keywords : semantic dependency parsing; machine learning; parsing; logic; deduction system; crossing edges; SemEval; coverage; crossing arcs; graph; graph class; non-crossing; QAC; quartic; acyclic; semantisk dependensparsning; maskininlärning; parsning; logik; deduktionssystem; korsande bågar; SemEval; täckning; korsande kanter; graf; grafklass; ickekorsande; QAC; kvartiskt; acykliskt;

    Abstract : Dependency parsing can be a useful tool to allow computers to parse text. In 2015, Kuhlmann and Jonsson proposed a logical deduction system that parsed to non-crossing dependency graphs with an asymptotic time complexity of O(n3), where “n” is the length of the sentence to parse. READ MORE