_index.org

Meghanani 2021

Last edited: August 8, 2025

DOI: 10.3389/fcomp.2021.624558

One-Liner

analyzed spontaneous speech transcripts (only!) from TD and AD patients with fastText and CNN; best was \(83.33\%\) acc.

Novelty

  • threw the NLP kitchen sink to transcripts
    • fastText
    • CNN (with vary n-gram kernel 2,3,4,5 sizes)

Notable Methods

  • embeddings seaded by GloVe
  • fastText are much faster, but CNN won out

Key Figs

the qual results

PAR (participant), INV (investigator)

Notes

Hey look a review of the field:

Mel Scale

Last edited: August 8, 2025

Human do not perceive frequency very well. The Mel scale is a scale from Hertz to what’s better perceived.

memory

Last edited: August 8, 2025

memory is an array of bytes

  • each byte has a unique index which is written in hexadecimal
  • a pointer stores addresses to memory

memory allocation

Last edited: August 8, 2025

Utilization vs throughput is conflicting goals.

Big Picture

OS:

  • creates new process
  • sets up address space/segments
  • read the executable, load instructions, global data
  • libraries gets loaded

Complier:

  • set up stack

Heap Allocator: “Sandbox of bytes”

  • initialize the heap

heap allocation: client

void *malloc(size_t size);

Returns a pointer to a block of heap memory of at least size bytes, or NULL if an error occurred.

void free(void *ptr);

Frees the heap-allocated block starting at the specific address.

Mencius Philosophy

Last edited: August 8, 2025

Mencius Philosophy: every person has the capability of goodness and harm, and whichever one you water is the one that grows.