Natural Language Processing · TEE · revision
All seven units: final revision
TEE · full-course revision
TEE · revision, not a replacement for full lessons
TEE is 100 marks in 3 hours, scaled to 50 in the course total. Q1 is compulsory; choose any four of Q2–Q7. Each full question carries 20 marks. The two supplied 2025–26 papers follow this rule. Do not use the short M2 route as complete TEE preparation.
| Unit | Must be able to explain | Must be able to work |
|---|---|---|
| 1 | NLP levels, building blocks, NLU/NLG, approaches, pipeline and challenges | Classify ambiguity and identify linguistic units in examples. |
| 2 | Tokenization, case, stopwords, stemming/lemmatization, encoding, BoW/TF-IDF | Construct vectors; compute TF-IDF, cosine/Jaccard/Euclidean/Manhattan/Minkowski. |
| 3 | Corpora, annotation, dictionaries, regex, N-gram models and smoothing | List n-grams; count probabilities; smooth; compute sentence probability/perplexity. |
| 4 | POS approaches, HMM, chunking/chinking, CFG parsing, NER | Build emission/transition matrices; score paths; draw a tree; trace parser operations. |
| 5 | Lexical relations, WordNet, WSD, distributional/vector semantics, Word2Vec, GloVe | Lesk and NB; co-occurrence vectors; similarity; CBOW/Skip-gram examples. |
| 6 | Pragmatics/discourse, reference, coreference, pronouns, Hobbs and other approaches | Identify chains; show a tree traversal and state parse assumptions. |
| 7 | Classification, sentiment, spelling, translation, QA, IE, IR | Design an application pipeline; calculate relevant model/evaluation examples. |
TEE revision sequence
First revise the formula sheet and one full example per numerical family. Next read each unit’s definitions and comparisons. Then work one complete previous paper using its original choice rule. Finally revisit only the steps you got wrong, and read the other paper’s new question forms. Keep examples and diagrams beside definitions when revising; a term you cannot illustrate is not yet ready to explain.
For a 10-mark numerical, show the count table or matrix and the intermediate probabilities. For a 10-mark theory answer, organise definition, mechanism/steps, diagram/example, advantages and limitations around the actual question. Do not add unrelated paragraphs just to fill space.