Jun-Won Suh Intelligent Electronic Systems Human and Systems Engineering Department of Electrical and Computer Engineering ISIP_VERIFY, ISIP_DECODER_DEMO, and ISIP_LM_TESTER Progress on the Speech Recognition Search Demo

Page 1 of 7 Research Progress: Jun-Won Suh Overview Search Decoding Demo Language Model Tester Verify Utility Thesis Topic Speaker Verification using HMM, SVM, RVM

Page 2 of 7 Research Progress: Jun-Won Suh Search Decoding Demo Previous Problem  Possible word sequences disappear  Overlapping over Hypothesis and possible word sequences  N-gram was not working  Need to add the context dependent and independent mode Current Problem Lattice rescoring gives an segmental fault

Page 3 of 7 Research Progress: Jun-Won Suh Language Model Tester Current Language Model Tester  Using the IHD grammar, generate the symbols or graphs depending on searchlevel AnnotationGraph id = "hello_world"; type = "ORTHOGRAPHIC"; anchors = { {0}, {id = "hello_world:Anchor1"; offset = 0; unit = "seconds"; anchored = false; } }, { {1}, {id = "hello_world:Anchor2"; offset = 0; unit = "seconds"; anchored = false; } annotations = { {0}, {1}, {id = "hello_world:Annotation1"; type = "!SENT_DELIM !DUMMY ONE "; channel_index = 0; features = { load_factor = 0.75; table = { {"level"}, {"word"} } }

Page 4 of 7 Research Progress: Jun-Won Suh Language Model Tester Add Functionality: Parsing To take an existing sequence of symbols and determine if it was a permissible by the given grammar - Language Model - Hierarchical Digraph - SearchLevel - Vector - Vector > - Digraph - Vertices - LanguageModel algorithm = "IHD"; implementation = "IHD"; h_digraph = { level_index = 0; search_tag = "word"; search_symbols = { "!DUMMY" }, { "!SENT_DELIM" }, { "EIGHT" }, { "FIVE" }, { "FOUR" }, { "NINE" }, { "OH" }, { "ONE" }, { "SEVEN" }, { "SILENC E" }, { "SIX" }, { "THREE" }, { "TWO" }, { "ZERO" }; search_models = { weighted = true; vertices = {0, {1}}, {1, {0}}, {2, {7}}, {3, {0}}, {4, {9}}, {5, {1}}, {6, {12}}, {7, {11}}, {8, {4}}, {9, {3}}, {10, {10}}, {11, {8}}, {12, {2}}, {13, {5}}, {14, {6}}, {15, {13}}; arcs = {S, 0, 0}, {0, 1, 0}, {1, 6, 0}, {1, 7, 0}, {1, 8, 0}, {1, 9, 0},  Each word sequences tokenized  Find corresponding Search Symbol index in Vertex  Each word sequences will be stored in pair object  Compare with Arc  Write the result in Sof file

Page 5 of 7 Research Progress: Jun-Won Suh Language Model Tester Plans for parsing each Search Level st one two s t woh tow n dummy ss1t st s2s3 s1s3s4 2 search level 1 search level 0 search level

Page 6 of 7 Research Progress: Jun-Won Suh Verify Utility: Big Possible Thesis Topic!! Had many discussion to combine the HMM, SVM, and RVM Set up the parameters Need More Specific Thesis Topic Need to have results until End of June Change the SVM and RVM parameters to improve ERR?? Current Activity for Thesis - Read the “Speaker Recognition: A Tutorial”, J. P. Campbell - Read the “Introduction to Support Vector Machines”, P.S. Sastry

Page 7 of 7 Research Progress: Jun-Won Suh Need More Research Getting used to familiar with IFC and utility Need more language model knowledge