Sökning: "unsupervised classification"

Visar resultat 31 - 35 av 114 uppsatser innehållade orden unsupervised classification.

1. 31. A Confirmatory Analysis for Automating the Evaluation of Motivation Letters to Emulate Human Judgment

   Master-uppsats, Högskolan Dalarna/Institutionen för information och teknik

   Författare :Jorge Anibal Mercado Salazar; S M Masud Rana; [2021]
   Nyckelord :Motivation Letter; Natural Language Processing; Topic Modelling; Latent Dirichlet Allocation; Non-Negative Matrix Factorization; LDAVis; Topic; Factors; Image Processing; Text Processing; Logistic Regression; Unsupervised Learning; Machine Learning;

   Sammanfattning : Manually reading, evaluating, and scoring motivation letters as part of the admissions process is a time-consuming and tedious task for Dalarna University's program managers. An automated scoring system would provide them with relief as well as the ability to make much faster decisions when selecting applicants for admission. LÄS MER

3. 32. Diagnosis of Synoptic Weather Patterns Causing Heavy Rainfall Occurrence Using Self-Organizing Maps

   Master-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Författare :Aoi Kasai; [2021]
   Nyckelord :Self-Organizing Map; heavy rainfall frequency; classification; meteorological fields; prediction; heavy rainfall risk; Technology and Engineering;

   Sammanfattning : The annual number of events with precipitation over 50 mm/h have increased from 1970s and this trend is likely to be continued due to climate change in Kyushu, Japan. Therefore, it is important to recognize what kind of meteorological fields have contributed to the occurrence of heavy rainfall events and to reveal whether it is possible to diagnose heavy rainfall risk. LÄS MER

4. 33. Customer loyalty, return and churn prediction through machine learning methods : for a Swedish fashion and e-commerce company

   Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för matematik och matematisk statistik

   Författare :Anida Granov; [2021]
   Nyckelord :E-commerce; Machine Learning; Clustering; K-prototypes; Logistic Regression;

   Sammanfattning : The analysis of gaining, retaining and maintaining customer trust is a highly topical issue in the e-commerce industry to mitigate the challenges of increased competition and volatile customer relationships as an effect of the increasing use of the internet to purchase goods. This study is conducted at the Swedish online fashion retailer NA-KD with the aim of gaining better insight into customer behavior that determines purchases, returns and churn. LÄS MER

5. 34. Classification of Gear-shift data using machine learning

   Master-uppsats, Mälardalens högskola/Akademin för innovation, design och teknik

   Författare :Daniel Stenekap; [2021]
   Nyckelord :Machine Learning; AI;

   Sammanfattning : Today, automatic transmissions are the industrial standard in heavy-duty vehicles. However, tolerances and component wear can cause factory calibrated gearshifts to have deviations that have a negative impact on clutch durability and driver comfort. LÄS MER

7. 35. Development of Neural Networks Using Deterministic Transforms

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Pol Grau Jurado; [2021]
   Nyckelord :Multilayer neural network; deterministic transforms; weight matrices; computational cost; machine learning.; Neurala nätverk i flera lager; deterministiska transformationer; viktmatriser; beräkningskostnad; maskininlärning.;

   Sammanfattning : Deep neural networks have been a leading research topic within the machine learning field for the past few years. The introduction of graphical processing units (GPUs) and hardware advances made possible the training of deep neural networks. Previously the training procedure was impossible due to the huge amount of training samples required. LÄS MER