Pre-classification and AI French Patent Department

Current procedure Currently: Manual sorting by managers Expectation: Reducing sorting time and limiting distribution errors DB Sorting 1 S1 S2 S3 Sorting 2 P1 P2 P3 - Examiner 1 - Examiner 2 - Examiner 3 - … Automatisation of sorting on levels 1 et 2 by using only classification (subclass level) Managers keep the last sorting task (examiner level) : based on IPC, but also on workload, agendas … 21/01/2019 / Pre-classification and AI

2 possibilities Patent application Computer-Assisted Classification Pre-classification tool 3 or more potential classes (with level of confidence) Most likely examiners’ team Decision support for managers, who will continue to distribute Automatic distribution to this examiners’ team 21/01/2019 / Pre-classification and AI

Methodology Learning : INPI databases (2008-2018) 140 000 applications Patent application - Main IPC Data collection IPC Team Patent application (xml) with associated team Data fusion 21/01/2019 / Pre-classification and AI

Methodology Text processing Model construction Text Mining : lowercase, punctuation removal, stopwords removal, lemmatisation, stemming,… Model construction Machine learning model: FastText In the future, maybe TF-IDF and neural networks Model application on the training set (ca. 20 000 applications) Comparison with the correct team Graphic interface R-Shiny to apply the model on new applications Export of the predicted team 21/01/2019 / Pre-classification and AI

Results Reliability: 85 % of the training set P1 P2 P3 P4 P5 P6 P7 P8 Error rate with manual distribution : 5 to 10 % Error distribution with Computer-Assisted pre-classification Reference P1 P2 P3 P4 P5 P6 P7 P8 1385 51 61 20 49 35 6 36 1503 84 15 39 140 26 56 2160 50 12 21 38 2219 106 24 47 42 66 136 1326 34 14 104 29 25 1589 45 7 9 23 10 1908 76 33 46 43 54 59 1398 Prediction 21/01/2019 / Pre-classification and AI

Recent developpments (6 months) Focusing points Impact analysis Testing phase Recent developpments (6 months) Focusing points Impact analysis Processing delays in case of error Reattribution mechanism Stabilisation and implementation of the model IPC Proposal for examiners 21/01/2019 / Pre-classification and AI