diff --git a/server/src/analytic_unit.rs b/server/src/analytic_unit.rs
deleted file mode 100644
index 03d0b5c..0000000
--- a/server/src/analytic_unit.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-struct AnalyticUnit {
-    // TODO: field 
-}
diff --git a/server/src/api/analytics.rs b/server/src/api/analytics.rs
index 49b11f6..1f453a0 100644
--- a/server/src/api/analytics.rs
+++ b/server/src/api/analytics.rs
@@ -37,7 +37,7 @@ mod handlers {
     use crate::api::{BadQuery, API};
 
     pub async fn list(opts: ListOptions, srv: Srv) -> Result<impl warp::Reply, warp::Rejection> {
-        match srv.get_detections(opts.from, opts.to, 10).await {
+        match srv.get_threshold_detections(opts.from, opts.to, 10, 100_000.).await {
             Ok(segments) => Ok(API::json(&segments)),
             Err(e) => Err(warp::reject::custom(BadQuery)),
         }
diff --git a/server/src/services/analytic_service.rs b/server/src/services/analytic_service.rs
index a5f2512..e96db9e 100644
--- a/server/src/services/analytic_service.rs
+++ b/server/src/services/analytic_service.rs
@@ -6,6 +6,9 @@ use subbeat::metric::Metric;
 
 use anyhow;
 
+mod pattern_detector;
+
+
 #[derive(Clone)]
 pub struct AnalyticService {
     metric_service: MetricService,
@@ -20,11 +23,21 @@ impl AnalyticService {
         }
     }
 
-    pub async fn get_detections(
+    pub async fn get_pattern_detection() -> anyhow::Result<Vec<Segment>> {
+        // TODO: get segments
+        // TODO: get reads from segments
+        // TODO: run learn
+        // TODO: run detections
+        // TODO: convert detections to segments
+        Ok(Vec::new())
+    }
+
+    pub async fn get_threshold_detections(
         &self,
         from: u64,
         to: u64,
         step: u64,
+        threashold: f64
     ) -> anyhow::Result<Vec<Segment>> {
         let prom = self.metric_service.get_prom();
         let mr = prom.query(from, to, step).await?;
@@ -39,7 +52,7 @@ impl AnalyticService {
         let mut result = Vec::<Segment>::new();
         let mut from: Option<u64> = None;
         for (t, v) in ts {
-            if *v > 100_000.0 {
+            if *v > threashold {
                 if from.is_some() {
                     continue;
                 } else {
diff --git a/server/src/services/analytic_service/pattern_detector.rs b/server/src/services/analytic_service/pattern_detector.rs
new file mode 100644
index 0000000..7c0644b
--- /dev/null
+++ b/server/src/services/analytic_service/pattern_detector.rs
@@ -0,0 +1,20 @@
+use subbeat::metric::MetricResult;
+
+struct PatternDetector {
+
+}
+
+impl PatternDetector {
+    fn new() -> PatternDetector {
+        PatternDetector{}
+    }
+
+    fn learn(reads: &Vec<Vec<(u64, f64)>>) {
+        // TODO: implement
+    }
+
+    fn detect(ts: &Vec<(u64, f64)>) -> Vec<(u64, u64)> {
+        // fill backet
+        return Vec::new();
+    }
+}
\ No newline at end of file