Calculate B-Cubed Precision Recall and F-Score - IT Assignment Help

Assignment Task:

Task:

Calculate B-cubed precision, recall and F-score given the coreference entities in the system output and answer key. Fill in this information in the boxes provided below for the answers. You can edit the pdf to fill in the boxes if you have a way of doing so. Alternatively, you can print out this question, fill in the boxes in pen, and then scan the answered question in to create a .pdf file. Submit this pdf file to Gradescope (Short Homework 1). For this example, the answer key has 3 entities and the system has assumes exactly five entities. Note: Only consider the NPs that are part of the answer key and system output. Other NPs in the passage are irrelevant. A with subscripts indicate one answer key entity and B with subscripts indicate another answer key entity. The actual context is provided below with the entities marked in square brackets. Note that his crew and the substring his constitute two distinct NP instances (A3 and C2).

Answer Key: 1. A1 = the Bellman, A2 = he, A3=his,A4 = I, A5 = I, A6 = I 2. B1 = each man, B2 = his 3. C1 = his crew, C2 = the crew System Output: 1. A1 = the Bellman, A2 = he, A3=his, B2 = his 2. A4 = I, A5 = I, A6 = I 3. B1 = each man 4. C1 = his crew 5. C2 = the crew

• The above entities were taken from the following passage from Lewis Carroll’s Hunting of the Snark (1876): ”Just the place for a Snark!” the Bellman[A1] cried, As he[A2] landed [his[A3] crew][C1] with care; Supporting each man[B1] on the top of the tide By a finger entwined in his[B2] hair. ”Just the place for a Snark! I[A4] have said it twice: That alone should encourage the crew[C2]. Just the place for a Snark! I[A5] have said it thrice: What I[A6] tell you three times is true.

Question 2

Below, there are three typed feature structures modeled as directed acyclic graphs. FS1 represents a sentence that has the main verb agreed. FS2 represents a Noun Phase containing the head word couple. FS3 represents a Noun Phrase that begin with the determiner the. For this question, do the following: 1. Unify FS2 and FS3 at the roots. You can do this by redrawing the combined FS F S2?F S3 or drawing extra edges and labels on FS2 or FS3 in the figure. The result will be a representation of the phrase the couple. 2. Unify the result of the previous step (i.e., F S2 ? F S3) with the graph rooted at NP in FS1. Once again, you can either draw a new sentence DAG or you can modify FS1 on the test to reflect this change. The result will be a representation of the sentence the couple agreed. Note that couple is a word that can act, in some respects, as if it is either a singular or a plural noun. Please scan your drawings of parts 1 and 2 and submit through NYUClasses (.pdf file only). To be clear, the submission can either be: (i) a printout of the question, with additional graphs or parts of graphs added; or (ii) a new sheet of paper with your drawn graphs. You can draw this by hand or use graphics software (xfig, photoshop, etc.), at your discretion.

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