Monday, April 19, 2010



A naive chatbot program. No parsing, no cleverness, just a training file and output.

It first trains itself on a text and then later uses the data from that training to generate responses to the interlocutor's input. The training process creates a dictionary where each key is a word and the value is a list of all the words that follow that word sequentially anywhere in the training text. If a word features more than once in this list then that reflects and it is more likely to be chosen by the bot, no need for probabilistic stuff just do it with a list.

The bot chooses a random word from your input and generates a response by choosing another random word that has been seen to be a successor to its held word. It then repeats the process by finding a successor to that word in turn and carrying on iteratively until it thinks it's said enough. It reaches that conclusion by stopping at a word that was prior to a punctuation mark in the training text. It then returns to input mode again to let you respond, and so on.

It isn't very realistic but I hereby challenge anyone to do better in 71 lines of code !! This is a great challenge for any budding Pythonists, and I just wish I could open the challenge to a wider audience than the small number of visitors I get to this blog. To code a bot that is always guaranteed to be grammatical must surely be closer to several hundred lines, I simplified hugely by just trying to think of the simplest rule to give the computer a mere stab at having something to say.

Its responses are rather impressionistic to say the least ! Also you have to put what you say in single quotes.

I used War and Peace for my "corpus" which took a couple of hours for the training run, use a shorter file if you are impatient...

here is the trainer
import pickle
for line in b:
for word in line.split():
text.append (word)
for l in range(len(textset)):
for w in range(len(text)-1):
if check==text[w] and text[w][-1] not in '(),.?!':

here is the bot
import pickle,random
def nextword(a):
if a in successorlist:
return random.choice(successorlist[a])
return 'the'
while speech!='quit':
while True:
response+=' '+neword
if neword[-1] in ',?!.':
print response

You tend to get an uncanny feeling when it says something that seems partially to make sense. I think this is a universal syndrome with chatbots and shows us a lot about our expectations and hopes for machine intelligence. The tendency to attribute some kind of surreal cosmic wisdom or irony to the responses is common.


Sample output:( is this like talking to Tolstoy? Not really but still...)

the human affairs he thought.
>'oh those affairs were great'
>'what -surprised?'
do you value but she is what had the new country,
>'i do value but i do not blame the war on her'
so alarming them with those around with particular chair by all those who caressed me.
>'i never get anyone caressing me!'
allowed to talk about in a really so.
>'oh do not be prudish I am allowed to mention it'
should she suddenly heard of a duty for reason was handed him very hot.
>'you like these women a lot to talk about them so much'
advantage if your father?
>'my father approves of my romantic side'
love my son's having obeyed in the causes historic events that circle they didn't you know a force producing two Emperors with a certain prince.
>'oh now it is princes is it'
>'do you believe in Him?'
the insistence of incongruities giving you married at his squadron--that is,
>' i don't understand you sir'
>'i do not understand you sir'
the bridge which,
>'i crossed'
>'ok ok... well 71 lines still is not bad'
the work at Smolensk?
or that of War.
>'no, war'
was gradually that millions of married in which is Dolokhov?


(1) Pythomism - Luke's website


Priya Kannan said...

Usually I do not read post on blogs, but I would like to say that this write-up very forced me to try and do it! Your writing style has been surprised me. Great work admin.Keep update more blog.
Python Training in Chennai

Dipanwita said...

This is a most interesting blog post. I look forward to more such posts. python training in Chennai

johnsy sai said...

The knowledge of technology you have been sharing thorough this post is very much helpful to develop new idea. here by i also want to share this.
Digital Marketing online training

full stack developer training in pune

full stack developer training in annanagar

Mouni yoga said...

Thanks for splitting your comprehension with us. It’s really useful to me & I hope it helps the people who in need of this vital information. 
python training institute in chennai
python training in Bangalore
python training in pune
python training institute in chennai
python training in velachery
python online training

ragini k said...

Nice information, valuable and excellent design, as share good stuff with good ideas and concepts, lots of great information and inspiration, both of which I need, thanks to offer such a helpful information here.

Blueprism training in btm

Blueprism online training

geetha sridhar said...

Well somehow I got to read lots of articles on your blog. It’s amazing how interesting it is for me to visit you very often.

Data Science training in kalyan nagar | Data Science training in OMR
selenium training in chennai | Data Science training in chennai
Data science training in velachery | Data science online training

sudhagar raja said...

Very good brief and this post helped me alot. Say thank you I searching for your facts. Thanks for sharing with us!
java training in omr | oracle training in chennai

java training in annanagar | java training in chennai

sathya shri said...

Thank you for benefiting from time to focus on this kind of, I feel firmly about it and also really like comprehending far more with this particular subject matter. In case doable, when you get know-how, is it possible to thoughts modernizing your site together with far more details? It’s extremely useful to me.
angularjs Training in btm

angularjs Training in electronic-city

angularjs online Training

angularjs Training in marathahalli

angularjs interview questions and answers

Priya Rajesh said...

Your blog is amazing and informative. Keep sharing more like this.
Python Training in Chennai
Python classes in Chennai
ccna Training in Chennai
Angularjs Training in Chennai
RPA Training in Chennai
UiPath Training in Chennai
Blue Prism Training in Chennai
R Programming Training in Chennai

anusha said...

data science training in chennai Data Science Training in Chennai with real time projects. We are Best Data Science Training Institute in Chennai. Our Data Science training courses are taught by Experts.
AWS Training in Chennai AWS Training in Chennai in weekends.Learn AWS in just 5 weekends from BITA-Best Training Institute in Chennai.

Anbarasan14 said...

Thanks to the admin for sharing this blog with us. The info in this blog was really helpful to me.
german classes in mulund
german language classes in mulund
german classes in mulund west
German Course in Mulund East
French Classes in Mulund
French Classes in Mulund East
French Classes in Mulund West
French Language Classes in Mulund

akshaya raja said...

Thanks to the admin you have spend a lot for this blog I gained some useful info for you. Keep doing.
Digital Marketing Training in Chennai
Digital Marketing Course in Chennai
Cloud Computing Courses in Chennai
AWS Training in Chennai
Data Science Course in Chennai
Digital Marketing Training in Tambaram
Digital Marketing Training in OMR
Digital Marketing Training in Adyar

Calla said...

Very interesting, good job and thanks for sharing such a good blog. your article is so convincing that I never stop myself to say something about it. You’re doing a great job. Keep it up.python training in Mumbai

priya said...

You got an extremely helpful website I actually have been here reading for regarding an hour. I’m an initiate and your success is incredibly a lot of a concept on behalf of me.

Microsoft Azure online training
Selenium online training
Java online training
Java Script online training
Share Point online training

Aishwarya said...

I am not sure the place you are getting your information, however good topic. I needs to spend some time studying more or understanding more. Thank you for wonderful information I was in search of this info for my mission.
Chatbot Company in India
Chatbot Company in Chennai
Chatbot Development Company in Chennai
Chatbot in Chennai
Chatbot Development Company in India

Gayathri said...

I have gone through your blog, it was very much useful for me and because of your blog, and also I gained many unknown information, the way you have clearly explained is really fantastic. Kindly post more like this, Thank You.
Aviation Academy in Chennai
Air hostess training in Chennai
Airport management courses in Chennai
Ground staff training in Chennai
best aviation academy in Chennai
best air hostess training institute in Chennai
airline management courses in Chennai
airport ground staff training in Chennai

Softlogicseo said...

And indeed, I’m just always astounded concerning the remarkable things served by you. Some four facts on this page are undeniably the most effective I’ve had.
Advanced C C++ Training in Chennai |Best C C++ Training course in Chennai
Advanced linux Training in Chennai | Best linux Training in Chennai
Advanced Unix Training in Chennai | Best Unix Training in Chennai
Advanced uipath training in chennai | Best uipath training in chennai
Advanced Rprogramming Training in Chennai | Best Rprogramming Training in Chennai

ajish said...

Good Post! Thank you so much for sharing this pretty post, it was so good to read and useful to improve my knowledge as updated one, keep blogging.
Python Training in Electronic City

Unknown said...

I am really thankful for posting such useful information. It really made me understand lot of important concepts in the topic. Keep up the good work!
Oracle Training in Chennai | Oracle Course in Chennai

manisha said...

Thanks for sharing such a great blog Keep posting..
Python Training in Delhi
Python Course in Delhi