EGASP 2005 Evaluation Protocol

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Presentation transcript:

EGASP 2005 Evaluation Protocol Paul Flicek EBI

Basics The evaluations are probably wrong GTF is not standard There are hidden assumptions Filters, overlaps, clusters Terminology varies Genes, exons, etc. EGASP 2005 Evaluations

Evaluation Measures Exons and introns Transcript Gene Sensitivity (Sn) Specificity (Sp) Exon length Exons per transcript Transcript Sn / Sp Overlap Gene EGASP 2005 Evaluations

Definitions EGASP 2005 Evaluations

Definitions Positive Transcript Positive Gene Correct translation start Correct translation stop Every splice site correct Positive Gene At least one positive transcript EGASP 2005 Evaluations

Examples Annotation Trans Sn = 0.5 Trans Sp = 1.0 Gene Sn = 1.0 Gene Sp = 1.0 Prediction EGASP 2005 Evaluations

Examples Annotation Trans Sn = 0.5 Trans Sp = 1.0 Gene Sn = 1.0 Gene Sp = 1.0 Prediction EGASP 2005 Evaluations

Examples Annotation Trans Sn = 0.0 Trans Sp = 0.0 Gene Sn = 0.0 Gene Sp = 0.0 Prediction EGASP 2005 Evaluations

Examples Annotation Trans Sn = 1.0 Trans Sp = 1.0 Gene Sn = 1.0 Gene Sp = 1.0 Prediction EGASP 2005 Evaluations

Examples Annotation Trans Sn = 0.5 Trans Sp = 0.5 Gene Sn = 1.0 Gene Sp = 1.0 Prediction EGASP 2005 Evaluations

Examples Annotation Trans Sn = 1.0 Trans Sp = 0.67 Gene Sn = 1.0 Gene Sp = 1.0 Prediction EGASP 2005 Evaluations

The winners are… (there are clear trends) The most successful programs use expressed sequences Programs using evolutionary conservation are more successful than those that do not Exon and nucleotide measures are similar We are improving EGASP 2005 Evaluations

Spear Catching Time EGASP 2005 Evaluations

EGASP 2005 Evaluations Block 1 Paul Flicek EBI Expressed Sequence Methods

Nucleotide EGASP 2005 Evaluations

Exon EGASP 2005 Evaluations

Intron EGASP 2005 Evaluations

Gene EGASP 2005 Evaluations

Number of Genes 1027 1389 EGASP 2005 Evaluations

Unique Exons EGASP 2005 Evaluations

Summary EGASP 2005 Evaluations

EGASP 2005 Evaluations Block 2 Paul Flicek EBI Evolutionary Conservation (Dual/Multiple Genome) Methods

Summary EGASP 2005 Evaluations

EGASP 2005 Evaluations Block 3a Paul Flicek EBI Ab initio (single genome) and Exon only Methods

Summary EGASP 2005 Evaluations

EGASP 2005 Evaluations Block 3b Paul Flicek EBI Open (Any) Methods

Summary EGASP 2005 Evaluations