Recognizing Authority in Dialogue with an Integer Linear ...
LightSIDE Carolyn Penstein Ros Language Technologies Institute Human-Computer Interaction Institute School of Computer Science
With funding from the National Science Foundation and the Office of Naval Research 1 lightsidelabs.com/research/
2 3 Click here to load a file
4 Select Heteroglossia as the predicted category 5
Make sure the text field is selected to extract text features from 6 Feature Space Customizations Punctuation can be a stand in for mood
you think the answer is 9? you think the answer is 9. Bigrams capture simple lexical patterns common denominator versus common multiple
Trigrams (just like bigrams, but with 3 words next to each other) Carnegie Mellon University POS bigrams capture syntactic or stylistic information the answer which is vs which is the answer
Line length can be a proxy for explanation depth Feature Space Customizations Contains non-stop word can be a predictor of whether a conversational contribution is contentful
ok sure versus the common denominator Remove stop words removes some distracting features Stemming allows some generalization Multiple, multiply, multiplication
Removing rare features is a cheap form of feature selection Features that only occur once or twice in the corpus wont generalize, so they are a waste of time to include in the vector space Feature Space Customizations
Think like a computer! Machine learning algorithms look for features that are good predictors, not features that are necessarily meaningful Look for approximations If you want to find questions, you dont need to do a complete
syntactic analysis Look for question marks Look for wh-terms that occur immediately before an auxilliary verb Click to extract text features
10 Select Logistic Regression as the Learner 11
Evaluate result by cross validation over sessions 12 Run the experiment
13 14 Stretchy Patterns
(Gianfortoni, Adamson, & Ros, 2011) A sequence of 1 to 6 categories May include GAPs Can cover any symbol
GAP+ may cover any number of symbols Must not begin or end with a GAP 16
17 Now its your turn! Well explore some advanced features and error analysis
after the break! 18 Error Analysis Process Identify large error cells
Make comparisons Positive Negative Ask yourself how it is similar to the instances that were
correctly classified with the same class (vertical comparison) How it is different from those it was incorrectly not classified as (horizontal comparison)
Error Analysis on Development Set 20
Error Analysis on Development Set 21 Error Analysis on Development Set
22 Error Analysis on Development Set 23
Error Analysis on Development Set 24 25
26 Positive: is interesting, an interesting scene Negative: would have been more interesting, potentially interesting,
etc. Whats different? 27
28 29 30
31 32 * Note that in this case we get no benefit if we use feature selection over the original feature space.
33 Feature Splitting (Daum III, 2007) General
General Domain A Domain B
Why is this nonlinear? It represents the interaction between each feature and the Domain variable Now that the feature space represents the nonlinearity, the algorithm to train the weights 34 can be linear.
Healthcare Bill Dataset 35 Healthcare Bill Dataset
36 Healthcare Bill Dataset 37
Healthcare Bill Dataset 38 Healthcare Bill Dataset
39 Healthcare Bill Dataset 40
Healthcare Bill Dataset 41 Healthcare Bill Dataset
Demostració de pesca científica. Amb aquesta activitat es descobriran els peixos del riu Ter, quines migracions fan, quins obstacles troben i les accions que es poden fer per ajudar-los. Els macroinvertebrats aquàtics com a indicadors de la qualitat del riu.
Dr. Robert Dunne became parish priest of Toowoomba. In 1869 Fr Dunne re-opened St Patrick's School and a second school was commenced at Irishtown (Harlaxton) in 1871. Later became Bishop of Brisbane in 1881. He came to Toowoomba in 1895,...
ps. a second time… you'll notice that the PID for . bash. is the same as before but the PID for . ps. has changed. Why? (That's two questions.) Each process is assigned a unique PID upon creation; this is...
According to the National Joint Committee for Learning Disabilities (University of Washington), specific learning disabilities are a group of disorders shown by significant difficulties in the acquisition and use of listening, speaking, writing, reasoning or mathematical abilities.
Music Stevie Nicks, Bella Donna (1981) ... On-screen Show Company: University of Miami School of Law Other titles: Arial Brush Script MT Castellar Courier New Times New Roman Old English Text MT Rockwell Georgia Wingdings Default Design Music: Al Stewart,...
Basic Competitive Strategies: Value Disciplines Operational excellence Superior value via price and convenience Customer intimacy Superior value by means of building strong relationships with buyers and satisfying needs Product leadership Superior value via product innovation 18- * Figure 18-3: Hypothetical...
"Things I learned in BIOC 455 will most definitely help me when I enter the workforce." Techniques in Biochemistry & Biotechnology : BIOC 455 BIOC 455: Course Content Dipeptide analysis (2 lab periods) Determination of the amino acid sequence of...
Ready to download the document? Go ahead and hit continue!