This document discusses collocations and methods for identifying them. It defines a collocation as a conventional multi-word expression whose meaning cannot be directly derived from the individual words. The document outlines criteria for collocations including non-compositionality, non-substitutability, and non-modifiability. It then describes several computational approaches for finding collocations, including frequency-based methods, measures of mean and variance between words, hypothesis testing using t-tests and chi-square tests, and pointwise mutual information. Each method is explained with examples. The document evaluates the strengths and weaknesses of these different approaches.
In corpus linguistics, a collocation is a series of words or terms that co-occur more often than would be expected by chance. In phraseology, collocation is a sub-type of phraseme. An example of a phraseological collocation, as propounded by Michael Halliday,[1] is the expression strong tea. While the same meaning could be conveyed by the roughly equivalent powerful tea, this expression is considered excessive and awkward by English speakers. Conversely, a corresponding expression in technology, powerful computer, is preferred over strong computer. Phraseological collocations should not be confused with idioms, where an idiom's meaning is derived from its convention as a stand-in for something else while collocation is a mere popular composition.
There are about six main types of collocations: adjective + noun, noun + noun (such as collective nouns), verb + noun, adverb + adjective, verbs + prepositional phrase (phrasal verbs), and verb + adverb.
Collocation extraction is a computational technique that finds collocations in a document or corpus, using various computational linguistics elements resembling data mining.
It is my PPt about Semantics and Pragmatics; it only ver basic information about it, but hopefully it will be useful for your educational process or useful as your reading resources. You can contact me if you have a suggestion, critique, or maybe we can discuss this topic further.
Functions of Intonation
Differences in Intonation
Intonation Patterns
Word stress Vs Intonation
Levels of voice in English
What is Intonation?
Why do we need Intonation?
In corpus linguistics, a collocation is a series of words or terms that co-occur more often than would be expected by chance. In phraseology, collocation is a sub-type of phraseme. An example of a phraseological collocation, as propounded by Michael Halliday,[1] is the expression strong tea. While the same meaning could be conveyed by the roughly equivalent powerful tea, this expression is considered excessive and awkward by English speakers. Conversely, a corresponding expression in technology, powerful computer, is preferred over strong computer. Phraseological collocations should not be confused with idioms, where an idiom's meaning is derived from its convention as a stand-in for something else while collocation is a mere popular composition.
There are about six main types of collocations: adjective + noun, noun + noun (such as collective nouns), verb + noun, adverb + adjective, verbs + prepositional phrase (phrasal verbs), and verb + adverb.
Collocation extraction is a computational technique that finds collocations in a document or corpus, using various computational linguistics elements resembling data mining.
It is my PPt about Semantics and Pragmatics; it only ver basic information about it, but hopefully it will be useful for your educational process or useful as your reading resources. You can contact me if you have a suggestion, critique, or maybe we can discuss this topic further.
Functions of Intonation
Differences in Intonation
Intonation Patterns
Word stress Vs Intonation
Levels of voice in English
What is Intonation?
Why do we need Intonation?
Systemic functional linguistics and metafunctions of languageLearningandTeaching
Richard Ingold explores Systemic Functional Linguistics and highlights the three metafunctions of language with examples of analysis from The Hundred Acre Wood and Winnie the Pooh!
Detail explanation of pragmatics
Pragmatics is the social use of language
the discourse of pragmatics
speaking with style
how to assess
conversational skills
conversational analysis
Two Views of Discourse Structure: As a Product and As a ProcessCRISALDO CORDURA
This is are 3 presenter presentation on the discussion of "Two Views of Discourse Structure: As a Product and As a Process"
Credit to
https://uomustansiriyah.edu.iq/media/lectures/8/8_2020_03_30!04_57_35_PM.pptx
and
The book from the school
Systemic functional linguistics and metafunctions of languageLearningandTeaching
Richard Ingold explores Systemic Functional Linguistics and highlights the three metafunctions of language with examples of analysis from The Hundred Acre Wood and Winnie the Pooh!
Detail explanation of pragmatics
Pragmatics is the social use of language
the discourse of pragmatics
speaking with style
how to assess
conversational skills
conversational analysis
Two Views of Discourse Structure: As a Product and As a ProcessCRISALDO CORDURA
This is are 3 presenter presentation on the discussion of "Two Views of Discourse Structure: As a Product and As a Process"
Credit to
https://uomustansiriyah.edu.iq/media/lectures/8/8_2020_03_30!04_57_35_PM.pptx
and
The book from the school
Counts, comparisons, collocations, contestations: Towards a dictionary of the...Idibon1
What are "lexical resources" that can go into defining words and phrases? Visualizations and resources for studying language. (Presentation given at Dictionary.com)
Verb noun collocations including the following verbs:
have, organize, plan, make, get, take, catch, ask, lose, pay, run, do
There is a fill in the blanks and a word match activity included in this slide show.
There are also 3 slides that have collocations that use swear words.
Explicación acerca del tema "collocations" que son frases de dos o más palabras que se entienden como una sola idea y no deben ser traducidas de manera literal de un idioma a otro.
35878 Topic Discussion5Number of Pages 1 (Double Spaced).docxrhetttrevannion
35878 Topic: Discussion5
Number of Pages: 1 (Double Spaced)
Number of sources: 1
Writing Style: APA
Type of document: Essay
Academic Level:Master
Category: Psychology
Language Style: English (U.S.)
Order Instructions: Attached
I will attach the instruction
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General Business Page 9
Unit 4
Due Wed 12/12
800-1,000 words / these will be turned into slides and added to your key assignment.
Study the following document: Methods for Managing Differences. Assume this communication strategy has been recommended by your employer for mediation when working with potential and existing business clients and partners.
Consider that there are basically two distinct types of cultures. One type is more cooperative, and the other is more competitive. It has been discovered that there are some conflicts occurring between some of the key players who need to come to agreement on specific critical areas of the deal for it to move forward. The top management would really like this deal to happen.
Imagine being in this situation, and create the scenario as you go through the process using the methods approach from above.
· Describe the steps you would take and any considerations along the way.
· How would you use the recommended method when working with individuals who exhibit a generally competitive culture?
· How would you use the recommended method when working with individuals who exhibit a generally cooperative culture?
· Would this cultural factor change the way you apply this method for managing differences? Why or why not? Explain.
Create Section 4 of your Key Assignment presentation: Global Negotiations. Refer to Unit 1 Discussion Board 2 for a description of this section. Submit a draft of your entire presentation for your instructor to review.
Discussion 2: Discuss, elaborate and give example on the topic below. Please use only the reference I attach. Please be careful with grammar and spelling. No running head Please.
Author: Jackson, S.L. (2017). Statistics Plain and Simple (4th ed.): Cengage Learning
Topic
Review this week’s course materials and learning activities, and reflect on your learning so far this week. Respond to one or more of the following prompts in one to two paragraphs:
1. Provide citation and reference to the material(s) you discuss. Describe what you found interesting regarding this topic, and why.
2. Describe how you will apply that learning in your daily life, including your work life.
3. Describe what may be unclear to you, and what you would like to learn.
Reference:
Module 9: The Single-Sample z Test
The z Test: What It Is and What It Does
The Sampling Distribution
The Standard Error of the Mean
Calculations for the One-Tailed z Test
Interpreting the One-Tailed z Test
Calculations for the Two-Tailed z Test
Interpreting the Two-Tailed z Test
Statistical Power
Assumptions and Appropriate Use of the z Test
Confidence Intervals Based on the z Distribution
Review of Key Term.
This presentation contains my one day lectures which introduces fuzzy set theory, operations on fuzzy sets, some engineering control applications using Mamdamn model.
35880 Topic Discussion7Number of Pages 1 (Double Spaced).docxdomenicacullison
35880 Topic: Discussion7
Number of Pages: 1 (Double Spaced)
Number of sources: 1
Writing Style: APA
Type of document: Essay
Academic Level:Master
Category: Psychology
Language Style: English (U.S.)
Order Instructions: Attached
I will attach the instruction
Please follow them carefully
Discussion3: Please discuss, elaborate and give example on the topic below. Please use only the reference I attach. Please be careful with grammar and spelling. No running head please.
Author: Jackson, S.L. (2017). Statistics Plain and Simple (4th ed.): Cengage Learning
Topic:
You find out that the average 10th grade math score, for Section 6 of the local high school, is 87 for the 25 students in the class. The average test score for all 10th grade math students across the state is 85 for 1,800 students. The standard deviation for the state is 3.8.
Answer the following questions:
· What z score do you calculate?
· What is the area between the mean and the z score found in Appendix A of the textbook?
· What does this mean about the probability of this test score difference occurring by chance? Is it
less than 0.05?
Reference
Module 9: The Single-Sample z Test
The z Test: What It Is and What It Does
The Sampling Distribution
The Standard Error of the Mean
Calculations for the One-Tailed z Test
Interpreting the One-Tailed z Test
Calculations for the Two-Tailed z Test
Interpreting the Two-Tailed z Test
Statistical Power
Assumptions and Appropriate Use of the z Test
Confidence Intervals Based on the z Distribution
Review of Key Terms
Module Exercises
Critical Thinking Check Answers
Module 10: The Single-Sample t Test
The t Test: What It Is and What It Does
Student's t Distribution
Calculations for the One-Tailed t Test
The Estimated Standard Error of the Mean
Interpreting the One-Tailed t Test
Calculations for the Two-Tailed t Test
Interpreting the Two-Tailed t Test
Assumptions and Appropriate Use of the Single-Sample t Test
Confidence Intervals Based on the t Distribution
Review of Key Terms
Module Exercises
Critical Thinking Check Answers
Chapter 5 Summary and Review
Chapter 5 Statistical Software Resources
In this chapter, we continue our discussion of inferential statistics—procedures for drawing conclusions about a population based on data collected from a sample. We will address two different statistical tests: the z test and t test. After reading this chapter, engaging in the Critical Thinking checks, and working through the problems at the end of each module and at the end of the chapter, you should understand the differences between the two tests covered in this chapter, when to use each test, how to use each to test a hypothesis, and the assumptions of each test.
MODULE 9
The Single-Sample z Test
Learning Objectives
•Explain what a z test is and what it does.
•Calculate a z test.
•Explain what statistical power is and how to make statistical tests more powerful.
•List the assumptions of the z test.
•Calculate confidence intervals usi.
35881 DiscussionNumber of Pages 1 (Double Spaced)Number o.docxrhetttrevannion
35881 Discussion
Number of Pages: 1 (Double Spaced)
Number of sources: 1
Writing Style: APA
Type of document: Essay
Academic Level:Master
Category: Psychology
Language Style: English (U.S.)
Order Instructions: Attached
I will attach the instruction
Please follow them carefully
35876 Topic: Discussion3
Number of Pages: 1 (Double Spaced)
Number of sources: 1
Writing Style: APA
Type of document: Essay
Academic Level:Master
Category: Psychology
Language Style: English (U.S.)
Order Instructions: Attached
I will attach the instruction
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Discussion: Please discuss, elaborate and give example on the topic. Be careful with grammar and spelling. No running head please. Please Use only the reference I will attach as the professor will not be able to give grade.
Author: (Jackson, S. L. (2017). Statistics plain and simple. (4th ed.). Boston, MA: Cengage Learning.)
Topic
What level of measurement can be used for this test for the independent and dependent variables?
Reference:
Module 9: The Single-Sample z Test
The z Test: What It Is and What It Does
The Sampling Distribution
The Standard Error of the Mean
Calculations for the One-Tailed z Test
Interpreting the One-Tailed z Test
Calculations for the Two-Tailed z Test
Interpreting the Two-Tailed z Test
Statistical Power
Assumptions and Appropriate Use of the z Test
Confidence Intervals Based on the z Distribution
Review of Key Terms
Module Exercises
Critical Thinking Check Answers
Module 10: The Single-Sample t Test
The t Test: What It Is and What It Does
Student's t Distribution
Calculations for the One-Tailed t Test
The Estimated Standard Error of the Mean
Interpreting the One-Tailed t Test
Calculations for the Two-Tailed t Test
Interpreting the Two-Tailed t Test
Assumptions and Appropriate Use of the Single-Sample t Test
Confidence Intervals Based on the t Distribution
Review of Key Terms
Module Exercises
Critical Thinking Check Answers
Chapter 5 Summary and Review
Chapter 5 Statistical Software Resources
In this chapter, we continue our discussion of inferential statistics—procedures for drawing conclusions about a population based on data collected from a sample. We will address two different statistical tests: the z test and t test. After reading this chapter, engaging in the Critical Thinking checks, and working through the problems at the end of each module and at the end of the chapter, you should understand the differences between the two tests covered in this chapter, when to use each test, how to use each to test a hypothesis, and the assumptions of each test.
MODULE 9
The Single-Sample z Test
Learning Objectives
•Explain what a z test is and what it does.
•Calculate a z test.
•Explain what statistical power is and how to make statistical tests more powerful.
•List the assumptions of the z test.
•Calculate confidence intervals using the z distribution.
The z Test: What It Is and What It Does
The z test is a parametric statistical te.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
1. Collocations
Reading: Chap 5, Manning & Schutze
(note: this chapter is available online from the book’s page
http://nlp.stanford.edu/fsnlp/promo)
Instructor: Rada Mihalcea
2. Slide 2
What is a Collocation?
• A COLLOCATION is an expression consisting of two or more words
that correspond to some conventional way of saying things.
• The words together can mean more than their sum of parts (The
Times of India, disk drive)
– Previous examples: hot dog, mother in law
• Examples of collocations
– noun phrases like strong tea and weapons of mass destruction
– phrasal verbs like to make up, and other phrases like the rich and
powerful.
• Valid or invalid?
– a stiff breeze but not a stiff wind (while either a strong breeze or a strong
wind is okay).
– broad daylight (but not bright daylight or narrow darkness).
3. Slide 3
Criteria for Collocations
• Typical criteria for collocations:
– non-compositionality
– non-substitutability
– non-modifiability.
• Collocations usually cannot be translated into other languages word
by word.
• A phrase can be a collocation even if it is not consecutive (as in the
example knock . . . door).
4. Slide 4
Non-Compositionality
• A phrase is compositional if the meaning can predicted from the
meaning of the parts.
– E.g. new companies
• A phrase is non-compositional if the meaning cannot be predicted
from the meaning of the parts
– E.g. hot dog
• Collocations are not necessarily fully compositional in that there is
usually an element of meaning added to the combination. Eg. strong
tea.
• Idioms are the most extreme examples of non-compositionality. Eg.
to hear it through the grapevine.
5. Slide 5
Non-Substitutability
• We cannot substitute near-synonyms for the components of a
collocation.
• For example
– We can’t say yellow wine instead of white wine even though yellow is as
good a description of the color of white wine as white is (it is kind of a
yellowish white).
• Many collocations cannot be freely modified with additional lexical
material or through grammatical transformations (Non-
modifiability).
– E.g. white wine, but not whiter wine
– mother in law, but not mother in laws
6. Slide 6
Linguistic Subclasses of Collocations
• Light verbs:
– Verbs with little semantic content like make, take and do.
– E.g. make lunch, take easy,
• Verb particle constructions
– E.g. to go down
• Proper nouns
– E.g. Bill Clinton
• Terminological expressions refer to concepts and objects in technical
domains.
– E.g. Hydraulic oil filter
7. Slide 7
Principal Approaches to Finding
Collocations
How to automatically identify collocations in text?
• Simplest method: Selection of collocations by frequency
• Selection based on mean and variance of the distance
between focal word and collocating word
• Hypothesis testing
• Mutual information
8. Slide 8
Frequency
• Find collocations by counting the number of
occurrences.
• Need also to define a maximum size window
• Usually results in a lot of function word pairs that need
to be filtered out.
• Fix: pass the candidate phrases through a part of-speech
filter which only lets through those patterns that are
likely to be “phrases”. (Justesen and Katz, 1995)
9. Slide 9
Most frequent bigrams in an
Example Corpus
Except for New York, all the
bigrams are pairs of
function words.
10. Slide 10
Part of speech tag patterns for collocation filtering
(Justesen and Katz).
11. Slide 11
The most highly ranked
phrases after applying
the filter on the same
corpus as before.
12. Slide 12
Collocational Window
Many collocations occur at variable distances. A
collocational window needs to be defined to locate these.
Frequency based approach can’t be used.
she knocked on his door
they knocked at the door
100 women knocked on Donaldson’s door
a man knocked on the metal front door
13. Slide 13
Mean and Variance
• The mean µ is the average offset between two words in the corpus.
• The variance s
– where n is the number of times the two words co-occur, di is the offset
for co-occurrence i, and is the mean.
• Mean and variance characterize the distribution of distances
between two words in a corpus.
– High variance means that co-occurrence is mostly by chance
– Low variance means that the two words usually occur at about the same
distance.
s
14. Slide 14
Mean and Variance: An Example
For the knock, door example sentences the mean is:
And the sample deviation:
s
16. Slide 16
Ruling out Chance
• Two words can co-occur by chance.
– High frequency and low variance can be accidental
• Hypothesis Testing measures the confidence that this co-
occurrence was really due to association, and not just due to chance.
• Formulate a null hypothesis H0 that there is no association between
the words beyond chance occurrences.
• The null hypothesis states what should be true if two words do not
form a collocation.
• If the null hypothesis can be rejected, then the two words do not co-
occur by chance, and they form a collocation
• Compute the probability p that the event would occur if H0 were true,
and then reject H0 if p is too low (typically if beneath a significance
level of p < 0.05, 0.01, 0.005, or 0.001) and retain H0 as possible
otherwise.
17. Slide 17
The t-Test
• t-test looks at the mean and variance of a sample of measurements,
where the null hypothesis is that the sample is drawn from a
distribution with mean µ.
• The test looks at the difference between the observed and expected
means, scaled by the variance of the data, and tells us how likely one
is to get a sample of that mean and variance, assuming that the
sample is drawn from a normal distribution with mean µ.
Where x is the sample mean, s2
is the sample
variance, N is the sample size, and µ is the mean of
the distribution.
18. Slide 18
t-Test for finding collocations
• Think of the text corpus as a long sequence of N bigrams, and the
samples are then indicator random variables with:
– value 1 when the bigram of interest occurs,
– 0 otherwise.
• The t-test and other statistical tests are useful as methods for
ranking collocations.
• Step 1: Determine the expected mean
• Step 2: Measure the observed mean
• Step 3: Run the t-test
19. Slide 19
t-Test: Example
• In our corpus, new occurs 15,828 times, companies 4,675
times, and there are 14,307,668 tokens overall.
• new companies occurs 8 times among the 14,307,668
bigrams
H0 : P(new companies) =P(new)P(companies)
20. Slide 20
t-Test example
• For this distribution µ= 3.615 x 10-7
and s2
=p(1-p) =~ p2
• t value of 0.999932 is not larger than 2.576, the critical
value for =0.005. So we cannot reject the null hypothesis
that new and companies occur independently and do not
form a collocation.
21. Slide 21
Hypothesis testing of differences (Church
and Hanks, 1989)
• To find words whose co-occurrence patterns best distinguish
between two words.
• For example, in computational lexicography we may want to find the
words that best differentiate the meanings of strong and powerful.
• The t-test is extended to the comparison of the means of two normal
populations.
• Here the null hypothesis is that the average difference is 0 (l=0).
• In the denominator we add the variances of the two populations
since the variance of the difference of two random variables is the
sum of their individual variances.
22. Slide 22
Hypothesis testing of differences
Words that co-occur significantly more frequently with powerful, and
with strong
t C(w) C(strong w) C(powerful w) Word
3.16 933 0 10 computers
2.82 2337 0 8 computer
2.44 289 0 6 symbol
2.44 588 0 5 Germany
2.23 3745 0 5 nation
7.07 3685 50 0 support
6.32 3616 58 7 enough
4.69 986 22 0 safety
4.58 3741 21 0 sales
4.02 1093 19 1 opposition
23. Slide 23
Pearson’s chi-square test
• t-test assumes that probabilities are approximately normally
distributed, which is not true in general. The χ2
test doesn’t make
this assumption.
• the essence of the χ2
test is to compare the observed frequencies
with the frequencies expected for independence
– if the difference between observed and expected frequencies is large,
then we can reject the null hypothesis of independence.
• Relies on co-occurrence table, and computes
24. Slide 24
χ2
Test: Example
The χ2
statistic sums the differences between observed and expected
values in all squares of the table, scaled by the magnitude of the
expected values, as follows:
where i ranges over rows of the table, j ranges over columns, Oij is
the
25. Slide 25
χ2
Test: Example
• Observed values O are given in the table
– E.g. O(1,1) = 8
• Expected values E are determined from marginal probabilities:
– E.g. E value for cell (1,1) = new companies is expected frequency for this
bigram, determined by multiplying:
• probability of new on first position of a bigram
• probability of companies on second position of a bigram
• total number of bigrams
– E(1,1) = (8+15820)/N * (8+4667)/N * N =~ 5.2
χ2
is then determined as 1.55
• Look up significance table:
χ2
= 3.8 for probability level of α = 0.05
– 1.55 < 3.8
– we cannot reject null hypothesis new companies is not a collocation
26. Slide 26
Pointwise Mutual Information
• An information-theoretically motivated measure for discovering
interesting collocations is pointwise mutual information (Church et
al. 1989, 1991; Hindle 1990).
• It is roughly a measure of how much one word tells us about the
other.
27. Slide 27
Problems with using Mutual
Information
• Decrease in uncertainty is not always a good measure of an
interesting correspondence between two events.
• It is a bad measure of dependence.
• Particularly bad with sparse data.