Mean average precision

Information retrieval techniques: Lecture 25. The main topics covered in this chapter include: benchmarks for the evaluation of IR systems; evaluation measures; precision and recall; unranked retrieval evaluation; trade-off between recall and precision; computing recall/precision points;... Please refer to the content of document.

12p tieuvulinhhoa 22-09-2022 11 4   Download

Information retrieval techniques: Lecture 27. The main topics covered in this chapter include: mean average precision; non binary relevance; mean reciprocal rank; cumulative gain; discounted cumulative gain; normalized discounted cumulative gain;... Please refer to the content of document.

13p tieuvulinhhoa 22-09-2022 12 4   Download

Mục tiêu nghiên cứu của đề tài là nghiên cứu và đề xuất các phương pháp phục vụ dịch thuật, bao gồm các kỹ thuật tiền xử lý câu truy vấn, dịch câu truy vấn và xử lý câu truy vấn ở ngôn ngữ đích cũng như nghiên cứu và đề xuất các phương pháp xếp hạng lại danh sách kết quả tìm kiếm trong truy vấn xuyên ngữ, chú trọng việc xếp hạng các trang Web. Thước đo hiệu quả chính được sử dụng là điểm MAP (Mean Average Precision)

27p tabicani 24-09-2021 15 3   Download

This paper presents study and comparison of numerical methods which are used for evaluation of dynamic response. A Single Degree of Freedom (SDF)-linear problem is solved by means of Newmark’s Average acceleration method [2], Linear acceleration method [2], Central Difference method [6,7] with the help of MATLAB. The advantages, disadvantages, relative precision and applicability of these numerical methods are discussed throughout the analysis.

10p tunelove 12-06-2021 13 1   Download

The paper presents the Position Specific Posterior Lattice, a novel representation of automatic speech recognition lattices that naturally lends itself to efficient indexing of position information and subsequent relevance ranking of spoken documents using proximity. In experiments performed on a collection of lecture recordings — MIT iCampus data — the spoken document ranking accuracy was improved by 20% relative over the commonly used baseline of indexing the 1-best output from an automatic speech recognizer. The Mean Average Precision (MAP) increased from 0.

8p bunbo_1 17-04-2013 38 1   Download

We introduce the possibility of combining lexical association measures and present empirical results of several methods employed in automatic collocation extraction. First, we present a comprehensive summary overview of association measures and their performance on manually annotated data evaluated by precision-recall graphs and mean average precision. Second, we describe several classification methods for combining association measures, followed by their evaluation and comparison with individual measures. ...

8p hongvang_1 16-04-2013 47 1   Download