PPT-N-Gram Language Models ChengXiang Zhai Department of Computer Science

NGram Language Models ChengXiang Zhai Department of Computer Science University of Illinois UrbanaChampaign 1 Outline General questions to ask about a language model Ngram language models. edu ChengXiang Zhai Department of Computer Science University of Illinois at UrbanaChampaign Urbana IL 61801 czhaicsuiucedu Neel Sundaresan eBay Research Labs 2145 Hamilton Avenue San Jose CA 95125 nsundaresanebaycom ABSTRACT Web 20 technologies have Model P(hetoxf) P(thefox) 1-gram 1:83109 1:83109 2-gram 3:261011 1:18107 3-gram 1:891013 1:04106 OveralongersequenceXoflengthN,wecanalsocalculatelog2(P(X))=N,which(perShan-non)givesthecom CMSC 723: Computational Linguistics I ― Session #9. Jimmy Lin. The . iSchool. University of Maryland. Wednesday, October 28, 2009. N-Gram Language Models. What? . LMs assign probabilities to sequences of tokens. Language Modeling. Estimating bigram probabilities. An example. Small Corpus:. <s. > I am Sam </s>. <s> Sam I am </s>. <s> I do not like green eggs and ham </s>. More examples: . Corpora and Statistical Methods. Lecture 7. In this lecture. We consider one of the basic tasks in Statistical NLP:. language models . are probabilistic representations of allowable sequences . This part:. Instructor: Paul Tarau, based on . Rada. . Mihalcea’s. original slides. Note. : some of the material in this slide set was adapted from an NLP course taught by Bonnie Dorr at Univ. of Maryland. Language Models. Sonoma State University. What type of person becomes a Computer Scientist?. People who are:. Creative. Problem solvers. Curious. What do. . Computer Science students study at. Sonoma State University ?. Physical differences & clinical . signifigance. . . Figure 4.8b. Gram- positive bacteria. Gram-negative bacteria. Figure 4.8a. Gram-Positive cell walls. Teichoic acids:. Lipoteichoic acid links to plasma membrane. Department. Davis . Farish. , Scott Grace, Kyle . Sarantsev. , Chris Walton, Chris Witter. Agenda. Project Origin/Goal. Microsoft Kinect. Vail Sport Test (VST). Development Environment. System. Video Demo. Basic vs. acidic dyes. Differential Stain. Primary stain (stains all cells on slide). Decolorizing step (removes stain from certain types of cells). Counterstain (stains the decolorized cells). Differentiate bacteria into two large groups (the Gram Positive and the Gram negative).. Gram status is important in medicine; the presence or absence of a cell wall will change the bacterium's susceptibility to some antibiotics. 1 The slide is washed in water; excess water is removed using a blotting paper, dried in air and heat fixed before observing under microscope. Those bacteria that hold on to primary dye-iodine comple ve Cocci Flowchart This job aid is a component of the free, ondemand CDC training course “Biochemicals and Gram Positive Organism Identification.” Find the course at https://www.cdc.gov/la Gram Positive. Gram Negative. Gram-Positive bacteria. Gram-Negative bacteria. Cell Wall. A single-layered, smooth cell wall.  A double-layered, wavy cell-wall. Cell Wall thickness. The thickness of the cell wall is 20 to 80 .