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Full-Text Articles in Physical Sciences and Mathematics
Towards A Computational Model Of Narrative On Social Media, Anne Bailey
Towards A Computational Model Of Narrative On Social Media, Anne Bailey
Dartmouth College Undergraduate Theses
This thesis describes a variety of approaches to developing a computational model of narrative on social media. Our goal is to use such a narrative model to identify efforts to manipulate public opinion on social media platforms like Twitter. We present a model in which narratives in a collection of tweets are represented as a graph. Elements from each tweet that are relevant to potential narratives are made into nodes in the graph; for this thesis, we populate graph nodes with tweets’ authors, hashtags, named entities (people, locations, organizations, etc.,), and moral foundations (central moral values framing the discussion). Two …
Automated Filament Inking For Multi-Color Fff 3d Printing, Eammon Littler
Automated Filament Inking For Multi-Color Fff 3d Printing, Eammon Littler
Dartmouth College Master’s Theses
We propose a novel system for low-cost multi-color Fused Filament Fabrication (FFF) 3D printing, allowing for the creation of customizable colored filament using a pre-processing approach. We developed an open-source device to automatically ink filament using permanent markers. Our device can be built using 3D printed parts and off-the-shelf electronics. An accompanying web-based interface allows users to view GCODE toolpaths for a multi-color print and quickly generate filament color profiles. Taking a pre-processing approach makes this system compatible with the majority of desktop 3D printers on the market, as the processed filament behaves no differently from conventional filaments. Furthermore, inked …