Update README.md
Browse files
README.md
CHANGED
@@ -4,4 +4,38 @@ inference:
|
|
4 |
function_to_apply: "none"
|
5 |
widget:
|
6 |
- text: "I cuddled with my dog today."
|
7 |
-
---
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4 |
function_to_apply: "none"
|
5 |
widget:
|
6 |
- text: "I cuddled with my dog today."
|
7 |
+
---
|
8 |
+
|
9 |
+
# Conditional Utilitarian Roberta 01
|
10 |
+
|
11 |
+
## Model description
|
12 |
+
|
13 |
+
This is a [Roberta-based](https://huggingface.co/roberta-large) model. It was first fine-tuned on for computing utility estimates of experiences (see [utilitarian-roberta-01](https://huggingface.co/pfr/utilitarian-roberta-01). It was then further fine-tuned on 160 examples of pairwise comparisons of conditional utilities.
|
14 |
+
|
15 |
+
## Intended use
|
16 |
+
|
17 |
+
The main use case is the computation of utility estimates of first-person text scenarios, under extra contextual information.
|
18 |
+
|
19 |
+
## Limitations
|
20 |
+
|
21 |
+
The model was fine-tuned on only 160 examples, so it should be expected to have limited performance.
|
22 |
+
|
23 |
+
Further, while the base model was trained on ~10000 examples, they are still restricted, and only on first-person sentences. It does not have the capability of interpreting highly complex or unusual scenarios, and it does not have hard guarantees on its domain of accuracy.
|
24 |
+
|
25 |
+
## How to use
|
26 |
+
|
27 |
+
Given a scenario S under a context C, and the model U, one computes the estimated conditional utility with `U(f'{C} {S}') - U(C)`.
|
28 |
+
|
29 |
+
## Training data
|
30 |
+
|
31 |
+
The first training data is the train split from the Utilitarianism part of the [ETHICS dataset](https://arxiv.org/abs/2008.02275).
|
32 |
+
|
33 |
+
The second training data consists of 160 crowdsourced examples of triples (S, C0, C1) consisting of one scenario and two possible contexts, where `U(S | C0) > U(S | C1)`.
|
34 |
+
|
35 |
+
## Training procedure
|
36 |
+
|
37 |
+
Starting from [utilitarian-roberta-01](https://huggingface.co/pfr/utilitarian-roberta-01), we fine-tune the model over the training data of 160 examples, with a learning rate of `1e-5`, a batch size of `8`, and for 2 epochs.
|
38 |
+
|
39 |
+
## Evaluation results
|
40 |
+
|
41 |
+
The model achieves ~70% accuracy over 40 crowdsourced examples, from the same distribution as the training data.
|