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RNNs by Hand, in Excel
From a small neuron to a small language model
Sep 27 • Prof. Tom Yeh
Small Language Model
RNNs by Hand, in Excel
Sep 27 • Prof. Tom Yeh
Loss
RNNs by Hand, in Excel
Sep 27 • Prof. Tom Yeh
Autoregressive
RNNs by Hand, in Excel
Sep 27 • Prof. Tom Yeh
Tokens
RNNs by Hand, in Excel
Sep 27 • Prof. Tom Yeh
Seq2Seq
RNNs by Hand, in Excel
Sep 27 • Prof. Tom Yeh
Depth
RNNs by Hand, in Excel
Sep 27 • Prof. Tom Yeh
Outputs
RNNs by Hand, in Excel
Sep 27 • Prof. Tom Yeh
Size
RNNs by Hand, in Excel
Sep 27 • Prof. Tom Yeh
Recurrence
RNNs by Hand, in Excel
Sep 27 • Prof. Tom Yeh
AI by Hand ✍️ Yantra Jnana Award
Teach AI by Hand in India’s Languages
Sep 4 • Prof. Tom Yeh
25
3

Counting AI by Hand ✍️ ~ Recordings
Mohsena Ashraf on measuring what AI costs, in Excel
Aug 22 • Prof. Tom Yeh
31
1
1
Loop Engineering (coming soon, Sep 3, 2026)
Counting AI by Hand ✍️ Lecture Series by Mohsena
Aug 22 • Prof. Tom Yeh
3
Agent Tokens (Jul 14, 2026)
Counting AI by Hand ✍️ Lecture Series by Mohsena
Aug 22 • Prof. Tom Yeh
3
1
Transformer Ops (Jun 23, 2026)
Counting AI by Hand ✍️ Lecture Series by Mohsena
Aug 22 • Prof. Tom Yeh
2
1
Kimi 3 ~ New Seminar Recording
AI by Hand ✍️ Seminars
Aug 20 • Prof. Tom Yeh
29
1
2
Context Problems
Agentic AI by hand ✍️
Aug 19 • Prof. Tom Yeh
3
1
Cost Forecast
Budgeting a Long Session
Aug 19 • Prof. Tom Yeh
2
Quadratic Cost
Adding Up the Turns
Aug 19 • Prof. Tom Yeh
2
Context Tax
Paying for the Past
Aug 19 • Prof. Tom Yeh
2
Retrieval Cost
Retrieved Chunks Are Input
Aug 19 • Prof. Tom Yeh
1
Stateless API
Resending the Context
Aug 19 • Prof. Tom Yeh
2
Verbatim Tail
Keeping the recent rounds whole
Aug 19 • Prof. Tom Yeh
The Compaction Threshold
Picking the number from a round
Aug 19 • Prof. Tom Yeh
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