What are the pros and cons of pseudo alignment tools like Kallisto and should I be using these?

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  • STAR

    RNA-seq aligner

  • The main claim is that pseudo-alignment is much faster than traditional alignment, but often I see pseudo-alignment to transcriptome compared to alignment to genome. Though STAR at least has issues building indices for transcriptomes. I wanted to try to benchmark myself if alignment to transcriptome is much slower than pseudo-alignment, but it asked for 100gb of RAM to create an index for 250mb of mm10 transcriptome. This issue shows that STAR shockingly requests for 1TB of ram to build an index for a 900mb axolotl transcriptome. So even if the alignment itself might be fast, the indexing is not fit-for-purpose.

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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