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prompts.py
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prompts.py
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# adapted from https://github.com/CeeZh/LLoVi
from string import Template
import re
def first_char_as_answer(res):
mapping = {'A':0, 'B':1, 'C':2, 'D':3, 'E':4}
if res[0] in mapping:
return mapping[res[0]]
return -1
def identity(res):
return res
def first_char_after_anchor(anchor):
def f(res):
mapping = {'A':0, 'B':1, 'C':2, 'D':3, 'E':4}
anchor_index = res.find(anchor)
pred = -1 # if decoding failed, return -1
if anchor_index >= 0:
#pred_letter = res[anchor_index+len(anchor)]
pred_letter = res[anchor_index+len(anchor):].strip()[0]
if pred_letter in mapping:
pred = mapping[pred_letter]
return pred
return f
def string_after_anchor(anchor):
def f(res):
anchor_index = res.find(anchor)
pred_string = "" # if decoding failed, return ""
if anchor_index >= 0:
pred_string = res[anchor_index+len(anchor):]
return pred_string
return f
def get_intervals_as_list(text):
text = text.split('.')[0]
text = text.strip()
if text[-1] != ']':
index = text.rfind(']')
assert index > 0
text = text[:index+1]
interval_list_text = text.split('and')
intervals = []
for interval_text in interval_list_text:
if ',' not in interval_text:
intervals.append([0, 0])
continue
start_text, end_text = interval_text.split(',')
start_text, end_text = start_text.strip(' []'), end_text.strip(' []')
if start_text == 'None':
start_text = '0'
if end_text == 'None':
end_text = '1'
start, end = int(start_text), int(end_text)
intervals.append([start, end])
return intervals
def get_intervals_as_list_after_anchor(anchor):
def f(text_in):
anchor_index = text_in.find(anchor)
text = "" # if decoding failed, return ""
if anchor_index >= 0:
text = text_in[anchor_index+len(anchor):]
pattern = r'(?<=\[).+?(?=\])'
intervals_in = re.findall(pattern, text)
intervals_in = list(set(intervals_in))
if len(intervals_in) == 0:
intervals = [[0,0]]
else:
intervals = []
for i in intervals_in:
try:
st, end = i.split(', ')
intervals.append([int(st),int(end)])
except:
continue
if len(intervals) == 0: intervals = [[0,0]]
return intervals
return f
class PromptTemplate(object):
def __init__(self, head, template, post_process_fn, max_new_tokens):
self.head = head
self.prompt_template = template
self.post_process_fn = post_process_fn
self.max_new_tokens = max_new_tokens
def get_num_stages(self):
return len(self.template)
def get_template_str(self):
template = []
for temp in self.prompt_template:
template.append(temp.safe_substitute())
return template
def fill(self, **kwargs):
# match variable names: duration, narration, question, optionA, optionB, optionC, optionD, optionE, num_words
prompt_filled = []
for temp in self.prompt_template:
prompt_filled.append(temp.substitute(kwargs))
return prompt_filled
def fill_each(self, prompt_idx, **kwargs):
return self.prompt_template[prompt_idx].substitute(kwargs)
class PromptFactory(object):
def __init__(self):
self.prompt_templates = self.build()
def build(self):
prompt_templates = {}
####################### GPT (from LLoVi) #######################
## 1. update input descriptions ##
# egoschema LLoVi sum(q)
prompt_templates['sum_q'] = PromptTemplate(
head = "You are a helpful expert in first person view video analysis.",
template = [
Template("You are given some language descriptions of a first person view video. The video is ${duration} seconds long. Each sentence "
"describes a ${clip_length}s clip. The descriptions are sequential and non-overlapping which cover the whole video exactly. "
"Here are the descriptions: ${narration}.\n Please give me a ${num_words} words summary. When doing summarization, remember that "
"your summary will be used to answer this multiple choice question: ${question}"),
],
post_process_fn = identity,
max_new_tokens = 500, #not used in gpt
)
## 2. answer question (generative classifier) ##
# egoschema QA (raw captions as input)
prompt_templates['qa_standard'] = PromptTemplate(
head = "You are a helpful expert in first person view video analysis.",
template = [
Template("Please provide a single-letter answer (A, B, C, D, E) to the following multiple-choice question, "
"and your answer must be one of the letters (A, B, C, D, or E). You must not provide any other response "
"or explanation. You are given some language descriptions of a first person view video. The video is "
"${duration} seconds long. Each sentence describes a ${clip_length}s clip. The descriptions are sequential "
"and non-overlapping which cover the whole video exactly. Here are the descriptions: ${narration}.\n You are "
"going to answer a multiple choice question based on the descriptions, and your answer should be a single "
"letter chosen from the choices.\n Here is the question: ${question}.\n Here are the choices.\n "
"A: ${optionA}\n B: ${optionB}\n C: ${optionC}\n D: ${optionD}\n E: ${optionE}\n"),
],
post_process_fn = first_char_as_answer,
max_new_tokens = 20, #not used in gpt
)
# egoschema QA (summary as input)
prompt_templates['qa_sum'] = PromptTemplate(
head = "You are a helpful expert in first person view video analysis.",
template = [
Template("Please provide a single-letter answer (A, B, C, D, E) to the following multiple-choice question, and your answer must be one "
"of the letters (A, B, C, D, or E). You must not provide any other response or explanation. You are given some language "
"descriptions of a first person view video. The video is ${duration} seconds long. Here are the descriptions: ${narration}.\n "
"You are going to answer a multiple choice question based on the descriptions, and your answer should be a single letter chosen "
"from the choices.\n Here is the question: ${question}.\n Here are the choices.\n "
"A: ${optionA}\n B: ${optionB}\n C: ${optionC}\n D: ${optionD}\n E: ${optionE}\n"),
],
post_process_fn = first_char_as_answer,
max_new_tokens = 20, #not used in gpt
)
# next-qa QA, intentQA QA
prompt_templates['qa_next'] = PromptTemplate(
head = "You are a helpful expert in first person view video analysis.",
template = [
Template("Please provide a single-letter answer (A, B, C, D, E) to the following multiple-choice question, and your answer must be one of the "
"letters (A, B, C, D, or E). You must not provide any other response or explanation. If you are not sure, answer with the most "
"likely answer. You are given some language descriptions of a first person view video. The video is 1 FPS and the descriptions are "
"the captions every 2 frames. Each caption starts with the frame number.\nHere are the descriptions:\n${narration}\n Here is the question: "
"${question}?\n Here are the choices:\n (A): ${optionA}\n (B): ${optionB}\n (C): ${optionC}\n (D): ${optionD}\n (E): ${optionE}\n"),
],
post_process_fn = first_char_as_answer,
max_new_tokens = 20, #not used in gpt
)
# next-gqa GQA
prompt_templates['gqa'] = PromptTemplate(
head = "You are a helpful expert in first person view video analysis.",
template = [
Template("I will provide video descriptions and one question about the video. The video is 1 FPS and the descriptions are the captions every "
"2 frames. Each caption starts with the frame number.\n To answer this question, what is the minimun frame interval to check?\n "
"Follow this format: [frame_start_index, frame_end_index]. Do not provide any explanation.\n Here are the descriptions:\n${narration}\n "
"Here is the question: ${question}?\n Please follow the output format as follows:\n #Example1: [5, 19]\n #Example2: [30, 60]\n "
"#Example3: [1, 10] and [50, 60]"),
],
post_process_fn = get_intervals_as_list,
max_new_tokens = 50, #not used in gpt
)
####################### MISTRAL #######################
B_INST, E_INST = "[INST]", "[/INST]"
B_SYS, E_SYS = "<<SYS>>\n", "\n<</SYS>>\n\n"
## 1. update input descriptions ##
# egoschema LLoVi sum(q) mistral
anchor = E_INST
prompt_templates['sum_q_mistral'] = PromptTemplate(
head = "",
template = [
Template(B_INST + B_SYS + "You are a helpful expert in first person view video analysis. " + E_SYS + "You are given some language descriptions of a first person view video. The video is ${duration} seconds long. Each sentence "
"describes a ${clip_length}s clip. The descriptions are sequential and non-overlapping which cover the whole video exactly. Here are the descriptions: ${narration}.\n Please give me a ${num_words} words summary. When doing summarization, remember that "
"your summary will be used to answer this multiple choice question: ${question}" + E_INST),
],
post_process_fn = string_after_anchor(anchor),
max_new_tokens = 500,
)
# egoschema LLoVi sum(q) w/ timestamp mistral
anchor = E_INST
prompt_templates['sum_q_tmstp_mistral'] = PromptTemplate(
head = "",
template = [
Template(B_INST + B_SYS + "You are a helpful expert in first person view video analysis. " + E_SYS + "You are given some language descriptions of a first person view video. The video is ${duration} seconds long. Each sentence "
"describes a ${clip_length}s clip. The descriptions are sequential and non-overlapping which cover the whole video exactly. Here are the descriptions with their timestamps: ${narration}.\n Please give me a ${num_words} words summary. When doing summarization, remember that "
"your summary will be used to answer this multiple choice question: ${question}" + E_INST),
],
post_process_fn = string_after_anchor(anchor),
max_new_tokens = 500,
)
# egoschema rephrase mistral
anchor = " The rephrased list is as follows:\n"
prompt_templates["rephrase_mistral"] = PromptTemplate(
head = "",
template = [
Template(B_INST + B_SYS + "You are a helpful expert in first person view video analysis. " + E_SYS +
"You are given a list of ${num_to_rephrase} language descriptions for a first person view video. Each sentence describes a ${clip_length}s clip. Here are the descriptions as a list:\n${memory}.\n"
"Please summarize and rephrase each item in the list as a single sentence of ${num_words_in_rephrase} words. Keep the same original subject (eg: #C, #O). Keep all information intact without leaving anything out. "
"Return only the rephrased list of ${num_to_rephrase} descriptions in the same order, without additional details. "
+ E_INST + anchor),
],
post_process_fn = string_after_anchor(anchor),
max_new_tokens = 500,
)
# egoschema rephrase w/ timestamp mistral
anchor = " The rephrased list is as follows:\n"
prompt_templates["rephrase_tmstmp_mistral"] = PromptTemplate(
head = "",
template = [
Template(B_INST + B_SYS + "You are a helpful expert in first person view video analysis. " + E_SYS +
"You are given a list of ${num_to_rephrase} language descriptions for a video, together with timestamps:\n${memory}.\n"
"Please summarize and rephrase each entry in the list separately, using half the number of words. Keep the same original subject (eg: #C, #O). Mention timesteps or durations concisely when necessary. Keep all information intact without leaving anything out. Do not combine list entries. "
"Return only the rephrased list of exactly ${num_to_rephrase} entries in the same order, without additional details. "
+ E_INST + anchor),
],
post_process_fn = string_after_anchor(anchor),
max_new_tokens = 1000,
)
# egoschema rephrase+sum(q) mistral
anchor1 = " The rephrased list is as follows:\n"
anchor2 = E_INST
prompt_templates["rephrase_sum_mistral"] = PromptTemplate(
head = "",
template = [
Template(B_INST + B_SYS + "You are a helpful expert in first person view video analysis. " + E_SYS +
"You are given a list of ${num_to_rephrase} language descriptions for a first person view video. Each sentence describes a ${clip_length}s clip. Here are the descriptions as a list:\n${memory}.\n"
"Please summarize and rephrase each item in the list as a single sentence of ${num_words_in_rephrase} words. Keep the same original subject (eg: #C, #O). Keep all information intact without leaving anything out. "
"Return only the rephrased list of ${num_to_rephrase} descriptions in the same order, without additional details. "
+ E_INST + anchor),
Template(B_INST + B_SYS + "You are a helpful expert in first person view video analysis. " + E_SYS +
"You are given some language descriptions of a first person view video. The video is ${duration} seconds long. The descriptions are non-overlapping which cover the whole video exactly. Here are the descriptions: ${narration}.\n Please give me a ${num_words} words summary. When doing summarization, remember that "
"your summary will be used to answer this multiple choice question: ${question}" + E_INST),
],
post_process_fn = [string_after_anchor(anchor1), string_after_anchor(anchor2)],
max_new_tokens = 500,
)
# egoschema rephrase+sum(q) w/ timestamp mistral
anchor1 = " The rephrased list is as follows:\n"
anchor2 = E_INST
prompt_templates["rephrase_tmstp_sum_mistral"] = PromptTemplate(
head = "",
template = [
Template(B_INST + B_SYS + "You are a helpful expert in first person view video analysis. " + E_SYS +
"You are given a list of ${num_to_rephrase} language descriptions for a video, together with timestamps:\n${memory}.\n"
"Please summarize and rephrase each entry in the list separately, using half the number of words. Keep the same original subject (eg: #C, #O). Mention timesteps or durations concisely when necessary. Keep all information intact without leaving anything out. Do not combine list entries. "
"Return only the rephrased list of exactly ${num_to_rephrase} entries in the same order, without additional details. "
+ E_INST + anchor),
Template(B_INST + B_SYS + "You are a helpful expert in first person view video analysis. " + E_SYS +
"You are given some language descriptions of a first person view video. The video is ${duration} seconds long. The descriptions are non-overlapping which cover the whole video exactly. Here are the descriptions: ${narration}.\n Please give me a ${num_words} words summary. When doing summarization, remember that "
"your summary will be used to answer this multiple choice question: ${question}" + E_INST),
],
post_process_fn = [string_after_anchor(anchor1), string_after_anchor(anchor2)],
max_new_tokens = 1000,
)
## 2. answer question (generative classifier) ##
# egoschema QA (raw captions as input) mistral
anchor = E_INST
prompt_templates['qa_standard_mistral'] = PromptTemplate(
head = "",
template = [
Template(B_INST + B_SYS + "You are a helpful expert in first person view video analysis. " + E_SYS +
"Please provide a single-letter answer (A, B, C, D, E) to the following multiple-choice question, "
"and your answer must be one of the letters (A, B, C, D, or E). You must not provide any other response "
"or explanation. You are given some language descriptions of a first person view video. The video is "
"${duration} seconds long. Each sentence describes a ${clip_length}s clip. The descriptions are sequential "
"and non-overlapping which cover the whole video exactly. Here are the descriptions: ${narration}.\n You are "
"going to answer a multiple choice question based on the descriptions, and your answer should be a single "
"letter chosen from the choices.\n Here is the question: ${question}.\n Here are the choices.\n "
"A: ${optionA}\n B: ${optionB}\n C: ${optionC}\n D: ${optionD}\n E: ${optionE}\n" + E_INST),
],
post_process_fn = first_char_after_anchor(anchor),
max_new_tokens = 20,
)
# egoschema QA (raw captions as input w/ timestamps) mistral
prompt_templates['qa_tmstp_mistral'] = PromptTemplate(
head = "",
template = [
Template(B_INST + B_SYS + "You are a helpful expert in first person view video analysis. " + E_SYS +
"Please provide a single-letter answer (A, B, C, D, E) to the following multiple-choice question, "
"and your answer must be one of the letters (A, B, C, D, or E). You must not provide any other response "
"or explanation. You are given some language descriptions of a first person view video. The video is "
"${duration} seconds long. Each sentence describes a ${clip_length}s clip. The descriptions are sequential "
"and non-overlapping which cover the whole video exactly. Here are the descriptions with their timestamps: ${narration}.\n You are "
"going to answer a multiple choice question based on the descriptions, and your answer should be a single "
"letter chosen from the choices.\n Here is the question: ${question}.\n Here are the choices.\n "
"A: ${optionA}\n B: ${optionB}\n C: ${optionC}\n D: ${optionD}\n E: ${optionE}\n" + E_INST),
],
post_process_fn = first_char_after_anchor(anchor),
max_new_tokens = 20,
)
# egoschema QA (summary as input) mistral
anchor = E_INST
prompt_templates['qa_sum_mistral'] = PromptTemplate(
head = "",
template = [
Template(B_INST + B_SYS + "You are a helpful expert in first person view video analysis. " + E_SYS +
"Please provide a single-letter answer (A, B, C, D, E) to the following multiple-choice question, "
"and your answer must be one of the letters (A, B, C, D, or E). You must not provide any other response "
"or explanation. You are given some language descriptions of a first person view video. The video is "
"${duration} seconds long. Here are the descriptions: ${narration}.\n You are "
"going to answer a multiple choice question based on the descriptions, and your answer should be a single "
"letter chosen from the choices.\n Here is the question: ${question}.\n Here are the choices.\n "
"A: ${optionA}\n B: ${optionB}\n C: ${optionC}\n D: ${optionD}\n E: ${optionE}\n" + E_INST),
],
post_process_fn = first_char_after_anchor(anchor),
max_new_tokens = 20,
)
# next-gqa GQA mistral
anchor = E_INST
prompt_templates['gqa_mistral'] = PromptTemplate(
head = "",
template = [
Template(B_INST + B_SYS + "You are a helpful expert in first person view video analysis. " + E_SYS +
"I will provide video descriptions and one question about the video. The video is 1 FPS and the descriptions are the captions every "
"2 frames. Each caption starts with the frame number.\n To answer this question, what is the minimun frame interval to check?\n "
"Follow this format: [frame_start_index, frame_end_index]. Always provide an interval. If not sure, give your best guess. Do not provide any explanation.\n Here are the descriptions:\n${narration}\n "
"Here is the question: ${question}?\n Please follow the output format as follows:\n #Example1: [5, 19]\n #Example2: [30, 60]\n "
"#Example3: [1, 10] and [50, 60]" + E_INST),
],
#post_process_fn = get_intervals_as_list,
post_process_fn = get_intervals_as_list_after_anchor(anchor),
max_new_tokens = 100,
)
## 2. answer question (log-likelihood classifier) ##
# egoschema QA mistral (log-likelihood eval)
prompt_templates['qa_ll_mistral'] = PromptTemplate(
head = "",
template = [
Template("${narration} ${question}"),
Template(" ${answer}"),
],
post_process_fn = identity,
max_new_tokens = 20,
)
# next-qa QA mistral (log-likelihood eval)
prompt_templates['qa_ll_mistral_nextqa'] = PromptTemplate(
head = "",
template = [
Template("${narration} Based on the description above, answer the following question: ${question}? Select one of these choices as the answer:\nA: ${optionA}\nB: ${optionB}\nC: ${optionC}\nD: ${optionD}\nE: ${optionE}\nThe correct answer is, "),
Template("${answer_id}: ${answer}"),
],
post_process_fn = identity,
max_new_tokens = 20,
)
return prompt_templates
def get(self, prompt_type):
return self.prompt_templates[prompt_type]